Yokogawa 43 Digital YewFloflip

<10. EXPLOSION PROTECTED TYPE INSTRUMENT> 49

(5) Installation Diagram of Intrinsically safe (7) Name Plate
(and Note)
[Integral type, Flameproof]
[Integral type] Hazardous Non Hazardous
Location Location *2

DY (Flowmeter)+ Safety barriers [Remote type detector, Flameproof]

SUPPLY ++
--
-
++
PULSE --

+

[Remote type without built-in Temperature sensor]

Hazardous Non Hazardous *2
Location Location
[Remote type converter, Flameproof]
DY-N (Detector) DYA (Converter) + Safety barriers
*2
A A SUPPLY ++
B -- [Integral type, Intrinsically safe]
B-
T T *2
C PULSE+ ++
-- [Remote type detector, Intrinsically safe]

DYC: Signal cable *2

[Remote type with built-in Temperature sensor] [Remote type converter, Intrinsically safe]

Hazardous Non Hazardous *2
Location Location
MODEL: Specified model code
DY-N (Detector) DYA (Converter) + Safety barriers SUFFIX : Specified suffix code
A SUPPLY STYLE: Style code
A B- ++ SUPPLY : Supply voltage
B T -- OUTPUT : Output signal
T C PULSE+ MWP : Maximum working pressure
++ PROCESS TEMP.: Process temperature
-- K-FACTOR : Device-specific factor
RANGE: Specified range
DYC: Signal cable NO.: Upper column: Manufacturing serial number *1

Electrical data: Lower column: The year / month of production
TAG NO. : Specified TAG No.
Signal/Supply Circuit (Terminals SUPPLY + and –): II1G: Group II Category 1 Gas atmosphere
Ui = 30 V, Ii = 300 mA, Pi = 0.9 W (linear source), II2G: Group II Category 2 Gas atmosphere
Ci = 14 nF, Li = 0 mH II3G: Group II Category 3 Gas atmosphere
*1) The first number in the second block of “NO.” column is the
Pulse Circuit (Terminals PULSE + and –):
Ui = 30 V, Ii = 300 mA*, Pi = 0.9 W (linear source), last one number of the production year. For example, the
Ci = 14 nF, Li = 0 mH year of production of the product engraved as follows is year
2015.
*: Read “Contact rating” for the maximum current value of NO. S5K965926 535 7
Pulse Circuit
↑Produced in 2015
Note: *2) The product - producing country 10
- It shall be assured that the voltage difference between the

output circuits of the associated apparatus (safety barriers)
is not more than 30V.
- Cables for the connection for Signal/Supply Circuit and
Pulse Circuit shall be of Type A or B in accordance with IEC
60079-14, otherwise the sum of Io of the associated
apparatus (safety barriers) shall be not more than 300 mA.

F1005.ai

(6) Electrical Connection EXPLOSION PROTECTED
TYPE INSTRUMENT
The type of electrical connection is stamped near
the electrical connection port according to the
following codes.

Screw size Marking

ISO M20 X 1.5 female ! M

ANSI 1/2-14NPT female ! N

F1006.ai

IM 01F06A01-01EN

<10. EXPLOSION PROTECTED TYPE INSTRUMENT> 50

10.4 CSA • Intrinsically Safe

(1) Technical Data Type “n” and Non-incendive

Applicable Standard: C22.2 No. 0-M91, C22.2

• Explosion Proof No. 0.4-2004, C22.2 No.

Applicable Standard: C22.1-98, C22.2 No.0-M1991, 157-M1987, C22.2 No. 213-

C22.2 No.0.4-04, C22.2 M1987, C22.2 No. 1010.1-92,

No.0.5-1982, C22.2 No. 25- CAN/CSA-E60079-0:02,

1966, C22.2 No. 30-M1986, CAN/CSA-E60079-11:02,

C22.2 No. 94-M1991, C22.2 CAN/CSA-E60079-15:02,

No. 142-M1987, C22.2 No. ANSI/ ISA-12.27.01-2003

61010-1-04, ANSI/ISA- Certificate: 1198227

12.27.01-2003 Type of Protection:

Certificate: 1166201 Ex ia IIC T4...T1 and Ex nC IIC T4...T1

Type of Protection: (Integral Type and Remote Type Detector)

Explosionproof for Class I, B, C and D; Class II, Ex ia IIC T4 and Ex nC IIC T4

Groups E, F and G; Class III. (Remote Type Converter)

For Class I, Division 2 location: (Integral Type and Remote Type Detector)

“FACTORY SEALED, CONDUIT SEAL NOT Temperature Code Process Temperature

T4 ≤+135°C

REQUIRED.” T3 ≤+200°C

Enclosure : Type 4X T2 ≤+300°C

(Integral Type and Remote Type Detector) T1 ≤+450°C

Temperature Code Process Temperature Ambient Temperature: -40 to +60°C
Degree of Protection of Enclosure: IP67
T6 ≤+85°C Electrical Parameters: Ui=30Vdc, Ii=165mAdc,

T5 ≤+100°C Pi=0.9W
Ci=12nF, Li=0.15mH
T4 ≤+135°C Electrical Connection: ANSI 1/2 NPT female
Type of Protection:
T3 ≤+200°C Intrinsically Safe for Class I,II,III, Div.1, Groups
A,B,C,D,E,F and G, Non- incendive for Class I,II,
T2 ≤+300°C Div.2, Groups A,B,C,D,E,F and G, Class III, Div.1

T1 ≤+450°C

Temperature Code: T6 (Remote Type Converter) (Integral Type and Remote Type Detector)
Ambient Temperature: -50 to +60°C
Power Supply: 42Vdc max. (Integral Type and Temperature Code Process Temperature

Remote Type Converter) T4 ≤+135°C
Output Supply (Integral Type):
T3 ≤+200°C
Current Output; 4 to 20mAdc
Pulse Output; On=2Vdc, 200mA T2 ≤+300°C

Off=42Vdc, 4mA T1 ≤+450°C
Output Signal (Remote Type Detector):
Temperature Code: T4 (Remote Type Converter)
Output Signal; 30Vp-p, 100µAp-p Ambient Temperature: -40 to +60°C
Input/Output signal (Remote Type Converter): Enclosure: Type 4X
Electrical Parameters: Vmax=30Vdc,
Current Output; 4 to 20mAdc
Pulse; On=2Vdc, 20mA Imax=165mAdc, Pmax=0.9W,
Ci=12nF, Li=0.15mH
Off=42Vdc, 4mA
Input Signal; 30Vp-p, 100µAp-p
Electrical Connection: ANSI 1/2 NPT female

IM 01F06A01-01EN

<10. EXPLOSION PROTECTED TYPE INSTRUMENT> 51

(2) Wiring (5) Installation Diagram Intrinsically Safe
(and Note)
• Explosion proof
Intrinsically safe Non Hazardous
WARNING Location
Hazardous Location
• All wiring shall comply with Canadian
Electrical Code Part I and Local Electrical Group IIC, Zone 0
Codes.
Class I, II, III, Division 1, Safety barriers
• In Hazardous locations, wiring shall be in Groups A, B, C, D, E, F and G
conduit as shown in the figure. ++
[Integral type] --
• A SEAL SHALL BE INSTALLED WITHIN
50cm OF THE ENCLOSURE. DY (flowmeter) + ++
--
• When the equipment is installed in Division SUPPLY
2, “FACTORY SEALED, CONDUIT SEAL
NOT REQUIRED”. -
PULSE +
(3) Operation
[Remote type] DYA (converter) + Safety barriers
• Explosion proof
DY-N (flowmeter) A SUPPLY ++
WARNING --
A B-
• In case of Explosion protected type, note a B T (*1) ++
warning label worded as follows. T C PULSE + --
Warning: OPEN CIRCUIT BEFORE
REMOVING COVER. DYC: Signal cable

• Take care not to generate mechanical (*1) Wire for T terminal
spark when access to the instrument and With temperature sensor type : installed
peripheral devices in hazardous locations. Without temperature sensor type: not installed

(4) Maintenance and Repair Electrical parameters of vortex flowmeter (DY) and vortex flow

WARNING converter (DYA).

Ui (Vmax)=30 V Ii (Imax)=165 mA Pi (Pmax)=0.9W

Ci=12 nF Li=0.15 mH

Installation requirements between flowmeter, converter and

Safety Barrier

Uo ≤ Ui Io ≤ Ii Po ≤ Pi Co ≥ Ci+Ccable

Lo ≥ Li+Lcable

Voc ≤ Vmax Isc ≥ Imax Ca ≥ Ci+Ccable

La ≥ Li+Lcable

Uo, Io, Po, Co, Lo, Voc, Isc, Ca and La are parameters of

barrier. F1007.ai

WARNING

• The instrument modification or part • In any safety barrier used output current 10
replacements by other than authorized must be limited by a resistor ‘R’ such that
representatives of Yokogawa Electric Io=Uo/R or Isc=Voc/R. EXPLOSION PROTECTED
Corporation are prohibited and will void CSA TYPE INSTRUMENT
Certification. • The safety barrier must be CSA certified.
• Input voltage of the safety barrier must be

less than 250Vrms/Vdc.
• Installation should be in accordance with

Canadian Electrical Code Part I.
• Dust-tight conduit seal must be used when

installed in class II and III environments.
• Do not alter drawing without authorization

from CSA.

IM 01F06A01-01EN

<10. EXPLOSION PROTECTED TYPE INSTRUMENT> 52

Type “n” and Non-incendive (6) Dual Seal (Option code: /CF11, /CS11)

Hazardous Location Non Hazardous Dual Seal:
Class IIC, Zone 2, Location Certified by CSA to the requirement of ANSI/ISA
Class I, II, 12.27.01
Division 2,Groups A, B, C, D, General Purpose No additional sealing required.
E, F and G, Equipment Primary seal failure annunciation: at the O-ring seal
Class III, Division 1 + Power + portion between shedder bar and amplifier housing.
– Supply –
[Integral type]
+– Receiver +–
DY (flowmeter) +

SUPPLY–
PULSE +

[Remote type]

DY-N (flowmeter) DY (converter) + + Power +
A – Supply –
B A SUPPLY– +– Receiver +–
T B
T(*1) PULSE
C +

DYC: Signal cable

(*1) Wire for T terminal
With temperature sensor type : installed
Without temperature sensor type: not installed

Non-incendive field wire parameters of vortex flowmeter (DY)

and vortex flow converter (DYA).

Ui (Vmax)=30 Ii (Imax)=165mA Pi (Pmax)=0.9W

Ci=12nF Li=0.15mH

Installation requirement between flowmeter, converter and
general purpose equirement.

Uo ≤ Ui Io ≤ Ii Po ≤ Pi Co ≥ Ci+Ccable
Lo ≥ Li+Lcable
Voc ≤ Vmax Isc ≤ Imax Ca ≥ Ci+Ccable
La ≥ Li+Lcable

Uo, Io, Po, Co Voc, Isc, Ca and La are nonincendive field
wire parameters of general purpose equipment.

F1008.ai

WARNING

• The general purpose equipment must
be CSA certified as the equipment which
have type n or non-incendive field wire
parameters.

• Installation should be in accordance with
Canadian Electrical Code Part I.

• Dust-tight conduit seal must be used when
installed in class II and III environments.

• Do not alter drawing without authorization
from CSA.

IM 01F06A01-01EN

<10. EXPLOSION PROTECTED TYPE INSTRUMENT> 53

10.5 TIIS

Certificate:

Model Shedder Integral Type Remote
bar Flowmeter Type
DY015
DY025/R1 Material Detector
DY040/R2
E N (None D (With N (None
Indicator) Indicator) Indicator)

TC14901 TC14912 TC14923

X TC18903 TC18914 TC18925

DY025 E TC19504 TC19513 TC19522
DY040/R1 X TC18904 TC18915 TC18926
DY050/R2

DY040 E TC19505 TC19514 TC19523
DY050/R1 X TC18905 TC18916 TC18927
DY080/R2

DY050 E TC19506 TC19515 TC19524
DY080/R1 X TC18906 TC18917 TC18928
DY100/R2

DY080 E TC19507 TC19516 TC19525
DY100/R1 X TC18907 TC18918 TC18929
DY150/R2

DY100 E TC19508 TC19517 TC19526
DY150/R1 X TC18908 TC18919 TC18930
DY200/R2

DY150 E TC19509 TC19518 TC19527
DY200/R1 X TC18909 TC18920 TC18931

DY200 E TC19510 TC19519 TC19528
X TC18910 TC18921 TC18932

DY250 E TC19511 TC19520 TC19529

DY300 E TC19512 TC19521 TC19530

DY400 B TC18945 TC18955 TC18965
Model
DYA Shedder Remote Type
bar Converter

Material N (None D (With
Indicator) Indicator)

TC14934 TC14935

Integral Type Flowmeter Remote Type Flowmeter 10

None Indicator With Indicator Detector Converter

Ex d IIC T6 ← ←← EXPLOSION PROTECTED
Construction Flame Proof Approval ← TYPE INSTRUMENT
←←

Amb.Temp -20°C up to +60°C ← ←←

Rating Maximum power supply vortage: DC42V Output Voltage: 30Vp-p Maximum power supply vortage:
Current Signal: DC4-20mA Output Current: 100µ Ap-p DC42V
Pulse Signal: Current Signal: DC4-20mA
ON : 2V 200mA Pulse Signal:
OFF : 42V 4mA ON : 2V 200mA
OFF : 42V 4mA
Input Signal: 30V p-p,100µ A p-p
Resistance Temp, Sensor Input:
Pt1000 at 0°C
Specified Current: less than 1mA

* In case that ambient temperature exceeds 50°C, use heat-resistant cables with maximum allowable temperature of 70°C or above.

IM 01F06A01-01EN

<11. COMMUNICATION (FIELDBUS)> 54

11. COMMUNICATION (FIELDBUS)

Fieldbus is fully dependent upon digital • Terminator:
communication protocol and differs in operation
from conventional 4 to 20 mA transmission Fieldbus requires two terminators. Read the
and the BRAIN communication protocol. It is supplier for details of terminators that are
recommended that novice users use fieldbus attached to the host.
devices in accordance with the procedures
described in this section. The procedures assume • Field devices:
that fieldbus devices will be set up on a bench or in
an instrument shop. Connect your Fieldbus communication type
digitalYEWFLO to a fieldbus. Two or more
11.1 Amplifier for Fieldbus digitalYEWFLOs and other field devices can be
Communication Type connected. For the terminal assignment on the
digitalYEWFLO, read Table 11.1.
Read IM 01F06A00-01EN for the details of the
amplifier. This section encompasses topics Table 11.1 Terminal Connection for
applicable to only the Fieldbus communication type. digitalYEWFLO
(1) The Fieldbus communication type has no local
Terminal Symbols Description
key access function.
(2) The Fieldbus communication type has no SUPPLY + Fieldbus Communication Signal
SUPPLY – Terminals
BT200 (BRAIN TERMINAL) connection pin.
(3) The Fieldbus communication type has a Grounding Terminal

simulation function. The SIMULATE_ENABLE1 • Host:
switch is mounted on the amplifier. Read2
Section 11.6 “Simulation Function” for details of Used for accessing field devices. A
the simulation function. dedicated host (such as DCS) is used for
an instrumentation line while dedicated
Amplifier unit communication tools are used for experimental
purposes. For operation of the host, read the
SIMULATE_ENABLE switch instruction manual for each host. No other details
on the host are given in this manual.
F1101.ai
• Cable:
Figure 11.1 Amplifier for Fieldbus Communication
Used for connecting devices. Read “Fieldbus
11.2 Connection of Devices Technical Information” (TI 38K03A01-01E) for
details of instrumentation cabling. For laboratory
The following instruments are required for use with or other experimental use, a twisted pair cable
Fieldbus devices: two to three meters in length with a cross section
• Power supply: of 0.9 mm2 or more and a cycle period of within
5 cm (2 inches) may be used. Termination
Fieldbus requires a dedicated power supply. It processing depends on the type of device being
is recommended that current capacity be well deployed. For the digitalYEWFLO, use terminal
over the total value of the maximum current lugs applicable to M4 screw terminals. Some
consumed by all devices (including the host). hosts require a connector.
Conventional DC current cannot be used as is.
Read Yokogawa when making arrangements to
purchase the recommended equipment.
Connect the devices as shown in Figure 11.2.
Connect the terminators at both ends of the
trunk, with a minimum length of the spur laid for
connection.
The polarity of signal and power must be
maintained.

IM 01F06A01-01EN

<11. COMMUNICATION (FIELDBUS)> 55

Table 11.2 Operation Parameters

Fieldbus power digitalYEWFLO HOST Symbol Parameter Description and Settings
supply V (ST)
+– Slot-Time Indicates the time necessary
Terminator V (MID) for immediate reply of
the device. Unit of time
Terminator V (MRD) is in octets (256 μs). Set
maximum specification
F1102.ai V (FUN) for all devices. For
V (NUN) digitalYEWFLO, set a value
of 4 or greater.

Figure 11.2 Device Connection Minimum-Inter- Minimum value of
PDU-Delay communication data
intervals. Unit of time is in
IMPORTANT octets (256 μs). Set the
maximum specification
Connecting a Fieldbus configuration tool for all devices. For
to a loop with its existing host may cause digitalYEWFLO, set a value
communication data scrambling resulting of 4 or greater.
in a functional disorder or a system failure.
Disconnect the relevant control loop from the bus Maximum-Reply- The worst case time
if necessary. Delay elapsed until a reply is
recorded. The unit is
11.3 Host Setting Slot-time; set the value so
that V (MRD) x V (ST) is
To activate Fieldbus, the following settings are the maximum value of the
required for the host. specification for all devices.
For digitalYEWFLO, the
IMPORTANT setting must be a value of 12
or greater.
Do not turn off the power immediately after
setting. When the parameters are saved to the First-Unpolled-Node Indicate the address next
EEPROM, the redundant processing is executed to the address range used
for the improvement of reliability. If the power by the host. Set 0x15 or
is turned off within 60 seconds after setting is greater.
made, the modified parameters are not saved
and the settings may return to the original values. Number-of- Unused address range.
consecutive-
Unpolled-Node

0x00 Not used
0x0F Bridge device
0x10
0x13 LM device
0x14 Unused
V(FUN)

V(NUN)

V(FUN)+V(NUN) BASIC device
0xF7
0xF8

Default address

0xFB
0xFC

Portable device address 11
0xFF

Note 1: LM device: with bus control function (Link Master function) COMMUNICATION (FIELDBUS)
Note 2: BASIC device: without bus control function

F1103.ai

Figure 11.3 Available Address Range

IM 01F06A01-01EN

<11. COMMUNICATION (FIELDBUS)> 56

11.4 Power-on of digitalYEWFLO 11.5 Generation of Alarm
and Bus
11.5.1 Indication of Alarm
Turn on the power to the host, bus, and
digitalYEWFLO. If any segments do not light, or if When the self-diagnostics function indicates that a
a current anomaly occurs, check the voltage of the device is faulty, an alarm (device alarm) is issued
power supply for the digitalYEWFLO. from the resource block. When an error (block
The device information, including PD tag, Node error) is detected in each function block or an error
address, and Device ID, is described on the sheet in the process value (process alarm) is detected, an
attached to digitalYEWFLO. The device information alarm is issued from each block. If an LCD indicator
is given in duplicate on this sheet. is installed, the error number is displayed as AL-
Using the host device display function, check that XX. If two or more alarms are issued, multiple error
the digitalYEWFLO is in operation on the bus. numbers are displayed in 2-second intervals. (when
“1” is set to DISPLAY_CYCLE).

Our Device Description Files and Capabilities Files available at F1105.ai
http://www.yokogawa.com/fld/ (English)
http://www.yokogawa.co.jp/fld/ (Japanese) Figure 11.5 Error Identification on Indicator

Our Device Description Files and Capabilities Files available at The error details corresponding to alarm indications
http://www.yokogawa.com/fld/ (English) on the LCD indicator and whether or not switches
http://www.yokogawa.co.jp/fld/ (Japanese) are provided to disable the corresponding alarms
are shown in Table 11.3. For the alarms for which
F1104.ai an alarm mask switch is provided, the default alarm
settings are also shown. Those alarms for which
Figure 11.4 Device Information Sheet Attached to an alarm mask switch is not provided are enabled
digitalYEWFLO at all times. For how to modify these mask switch
statuses, read IM 01F06F00-01EN APPENDIX
Unless otherwise specified, the following settings 3 “OPERATION OF EACH PARAMETER IN
are in effect when shipped from the factory. FAILURE MODE.”
If no digitalYEWFLO is detected, check the
available address range. If the node address and
PD Tag are not specified when ordering, default
value is factory set. If two or more digitalYEWFLOs
are connected at a time with default value, only
one digitalYEWFLO will be detected from host as
digitalYEWFLOs have the same initial address.
Connect the digitalYEWFLOs one by one and set a
unique address for each.

Read IM 01F06F00-01EN Chapter 4 for
“GETTING STARTED”, Chapter 5 for
“CONFIGURATION” and Chapter 6 for
“EXPLANATION OF BASIC ITEMS”.

IM 01F06A01-01EN

<11. COMMUNICATION (FIELDBUS)> 57

Table 11.3 Alarm Indications and Alarm Mask LCD Error Detail Alarm Mask
Switches AL-86 SW (default)
AL-87 AR Range High (AR.RANGE_HI) is smaller Provided (OFF)
LCD Error Detail Alarm Mask AL-88 than AR Range Low (AR.RANGE_LOW). Provided (OFF)
SW (default) AL-89 Provided (OFF)
AL-01 AL-90 AR Input1 (AR.IN_1) is over range. Provided (OFF)
The EEPROM(S) failed. Not provided AL-91 Provided (OFF)
AL-02 AR Input2 (AR.IN_2) is over range. Provided (OFF)
The serial communication circuit in the Not provided AL-92 Provided (OFF)
AL-03 amplifier failed (type 1 error). AR Input (AR.IN) is not connected to the
AL-93 volumetric flow. Provided (OFF)
AL-04 The serial communication circuit in the Not provided
AL-05 amplifier failed (type 2 error). AR Input1 (AR.IN_1) is not connected to the
AL-06 temperature.
AL-07 The EEPROM(F) failed. Not provided
AL-08 AR Input2 (AR.IN_2) is not connected to the
AL-20 The flow sensor failed. Provided (ON) pressure.
AL-21
AL-22 The input circuit in the amplifier failed. Provided (ON) * AR Compensation Coefficient (AR.
AL-23 AR_FLOW_CONFIG.Element) changed
AL-24 The temperature circuit in the amplifier failed. Not provided unexpected.
AL-25 Therefore AR Output (AR.OUT.Value) is
AL-26 The temperature sensor failed. Not provided uncertainty.
AL-27
AL-28 No function blocks are scheduled. Not provided AR Output Range .Units Index (AR.OUT_
AL-29 RANGE.Unit Index) is not selected rightly the
AL-30 Resource Block is in O/S mode. Not provided corresponding to AR Arithmetic Type (AR.
AL-41 ARITH_TYPE).
Transducer Block is in O/S mode. Not provided
AL-42
AI1 Block is in O/S mode. Provided (ON)
AL-43
AI2 Block is in O/S mode. Provided (OFF)
AL-51
DI1 Block is in O/S mode. Provided (OFF) *: Not provided for a model with the option /MV and with the fluid
AL-52 density calculation set to be active.
DI2 Block is in O/S mode. Provided (OFF)
AL-53
PID Block is in O/S mode. Provided (OFF)
AL-54
AI3 Block is in O/S mode. Provided (OFF)
AL-61
AL-62 IT Block is in O/S mode. Provided (OFF)
AL-63
AL-64 AR Block is in O/S mode. Provided (OFF)
AL-65
AL-66 Flow rate is over the range. Not provided
AL-67
AL-68 The flow rate span setting exceeds the range Not provided
AL-69 limit.
AL-70
AL-71 Temperature is over the range. (Regulated in Not provided
AL-72 the upper or lower limit value)
AL-73
AL-74 The transient vibration makes the current flow Provided (OFF)
AL-75 rate output constant.
AL-76
AL-77 The high vibration makes the current flow rate Provided (OFF)
AL-78 output zero.
AL-79
AL-80 The shedder bar is clogged with a material. Provided (OFF)
AL-81
The current flow rate is fluctuating more than Provided (OFF)
AL-82 20%.

AL-83 Indicator is over the range. Not provided

AL-84 AI1 Block is in Manual mode. Provided (ON)
AL-85
AI1 Block is in simulation mode. Provided (ON)

AI1 Block is not scheduled. Provided (ON)

AI2 Block is in Manual mode. Provided (OFF)

AI2 Block is in simulation mode. Provided (OFF)

AI2 Block is not scheduled. Provided (OFF)

DI1 Block is in Manual mode. Provided (OFF)

DI1 Block is in simulation mode. Provided (OFF)

DI1 Block is not scheduled. Provided (OFF)

DI2 Block is in Manual mode. Provided (OFF)

DI2 Block is in simulation mode. Provided (OFF)

DI2 Block is not scheduled. Provided (OFF)

PID Block is in Bypass mode. Provided (OFF) 11

PID Block is failed (type 1 error). Provided (OFF)

PID Block is failed (type 2 error). Provided (OFF)

AI3 Block is in Manual mode. Provided (OFF) COMMUNICATION (FIELDBUS)

AI3 Block is in simulation mode. Provided (OFF)

AI3 Block is not scheduled. Provided (OFF)

IT Block is in Manual mode. Provided (OFF)

IT Block is not scheduled. Provided (OFF)

IT Total backup failed. Last IT Output.Value (IT. Provided (OFF)
OUT.Value) could not saved.

IT Clock Period (IT.CLOCK_PER) is smaller Provided (OFF)
than IT Period of Execution(IT.EXECUTION_
PERIOD).

AR Block is in Manual mode. Provided (OFF)

AR Block is not scheduled. Provided (OFF)

IM 01F06A01-01EN

<11. COMMUNICATION (FIELDBUS)> 58

11.5.2 Alarms and Events 11.6 Simulation Function

Each digitalYEWFLO can report the following The simulation function simulates the input of a
function block and lets it operate as if the data was
alarms and events as alerts. received from the transducer block. It is possible to
conduct testing for the downstream function blocks
Analog Alerts (Generated when a process value or alarm processes.
A SIMULATE_ENABLE jumper switch is mounted
exceeds threshold) on the digitalYEWFLO’s amplifier. This is to prevent
the accidental operation of this function. When
By AI Block: Hi-Hi Alarm, Hi Alarm, Low this is switched on, simulation is enabled. (Read
Figure 11.4.) To initiate the same action from a
Alarm, Low-Low Alarm remote terminal, if REMOTE LOOP TEST SWITCH
is written to SIM_ENABLE_MSG (index 1044)
Discrete Alerts (Generated when an abnormal parameter of the resource block, the resulting action
is the same as is taken when the above switch is
condition is detected) on. Note that this parameter value is lost when the
power is turned off. In simulation enabled status,
By Resource Block: Block Alarm, Write Alarm an alarm is generated from the resource block, and
other device alarms will be masked; for this reason
By Transducer Block: Block Alarm the simulation must be disabled immediately after
using this function.
By AI Block: Block Alarm The SIMULATE parameter of AI block consists of
the elements listed in Table 11.5 below.
By PID Block: Block Alarm

Update Alerts (Generated when a important

(restorable) parameter is updated)

By Resource Block: Update Event

By Transducer Block: Update Event

By AI Block: Update Event

By PID Block: Update Event

An alert has the following structure:

Table 11.4 Alert Object
Subindex
Parameter
Name
Analog Explanation Table 11.5 SIMULATE Parameter
Alert
Sub- Parameters Description
Discrete index
Alert

Update
Alert

11 1 Block Index Index of block from which 1 Simulate Status Sets the data status to be
22 alert is generated simulated.
33
44 2 Alert Key Alert Key copied from the 2 Simulate Value Sets the value of the data to be
55 block simulated.
66
77 3 Standard Type of the alert 3 Transducer Status Displays the data status from the
88 Type transducer block. It cannot be
99 changed.
10 10 4 Mfr Type Alert Name identified by
manufacturer specific DD 4 Transducer Value Displays the data value from the
11 11 transducer block. It cannot be
5 Message Reason of alert changed.
Type notification

6 Priority Priority of the alarm 5 Simulate En/Disable Controls the simulation function of
this block.
7 Time Stamp Time when this alert is first 1: Disabled (standard)
detected 2: Active(simulation)

Subcode Enumerated cause of this
alert

Value Value of referenced data When Simulate En/Disable in Table 11.5 above is
set to “Active”, the applicable function block uses
Relative Relative Index of the simulation value set in this parameter instead of
Index referenced data the data from the transducer block. This setting can
be used for propagation of the status to the trailing
8 Static Value of static revision blocks, generation of a process alarm, and as an
Revision (ST_REV) of the block operation test for trailing blocks.

9 Unit Index Unit code of referenced
data

Set to OFF during SIM. ENABLE SwiOtch
normal operation. 1N

Not used. 2

F1106.ai

Figure 11.6 SIMULATE_ENABLE Switch Position

Read IM 01F06F00-01EN Chapter 8 for “DEVICE
STATUS”.

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 59

12. EXPLOSION PROTECTED TYPE
INSTRUMENT FOR FIELDBUS
COMMUNICATION TYPE

NOTE  Technical Data

Read Chapter 10 for other Explosion Protected • Intrinsically Safe Ex ia
Type of digitalYEWFLO Series Vortex
Flowmeter. Applicable Standard: EN 60079-0: 2012 +A11:

In this section, further requirements and differences 2013,
for explosion protected type instrument are
described. For explosion protected type instrument, EN 60079-11: 2012,
the description in this chapter is prior to other
description in this Instruction Manual. EN 60079-27: 2006

WARNING Certificate: KEMA 03ATEX1136X

• Only trained persons use this instrument in Type of Protection: Ex ia IIC T4...T1 Ga (Integral
industrial locations.
Type)
CAUTION
Ex ia IIC T6...T1 Ga (Remote
• Process temperature and ambient
temperature on this section are the Type Detector)
specifications for explosion protected type.
Read IM 01F06A00-01EN Section 13.1 Ex ia IIC T4 Ga (Remote Type
“Standard Specifications” before operating.
Converter)
12.1 ATEX
Group: II
WARNING
Category: 1 G
• Only trained persons use this instrument in
industrial locations. Ambient Temperature: -40 to +60°C (Integral Type)

• Electrostatic charge may cause an explosion -50 to +80[+78]°C (Remote
hazard.
Avoid any actions that cause the generation Type Detector)
of electrostatic charge, such as rubbing with
a dry cloth on coating face of product. -40 to +80°C (Remote Type EXPLOSION PROTECTED TYPE INSTRUMENT
FOR FIELDBUS COMMUNICATION TYPE
Converter)

(Option /LT below -29°C, [ ]

Option /MV at T6)

Electrical Data: Entity Ui = 24 V,

Ii = 250 mA, Pi = 1.2 W,

Ci = 3.52 nF, Li = 0 mH

FISCO(IIC) Ui = 17.5 V,

Ii = 500 mA, Pi = 5.5 W,

Ci = 3.52 nF, Li = 0 mH

Connect sensor circuit of DYA and DY-N (/HT)

(Integral Type) Process Temperature
≤ +135°C
Temperature Class ≤ +200°C
T4 ≤ +250°C
T3 ≤ +250°C
T2
T1

(Remote Type Detector) 12

Temperature Class Process Temperature*
T6 ≤ +84/[+78]°C
T5 ≤ +100°C
T4 ≤ +135°C
T3 ≤ +199°C
T2
T1 ≤ +299/[+288]°C
≤ +449/[+438]°C

*: Use /HT option above +250°C, use /LT option below -29 °C, [ ]
for /MV option.

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 60

• Intrinsically Safe Ex ic Special conditions for safe use
Applicable Standard: EN60079-0: 2009/EN60079-
1. For process temperatures above 250°C the flow
0:2012 meters of the /HT version must be used.
EN60079-11:2012
Type of Protection: Ex ic IIC T4…T1 Gc (Integral 2. Because the enclosures of the flow meters
Type) and the flow converter are made of aluminium
Ex ic IIC T6…T1 Gc (Remote alloy, when used in an potentially explosive
Type Detector) atmosphere requiring apparatus of equipment
Ex ic IIC T5…T4 Gc (Remort categoly 1 G, they must be installed so, that even
Type Converter) in the event of rare incidents, an ignition source
Group: II due to impact of friction between the enclosure
Category: 3 G and iron/steel is excluded.
Enclosure:IP66/67
Overvoltage Category:I • Precautions shall be taken to minimize the risk
Ambient Temperature: from electrostatic discharge of painted parts.
-40 to +60°C (Integral Type)
-50 to +80 [+79]°C (Remote Type Detector) • The dielectric strength of at least 500 V a.c. r.m.s.
(Option /LT below -29°C, [ ] for Option /MV at between the intrinsically safe circuits and the
T6) enclosure of the flow meter or the converter is
-40 to +80°C (Remote Type Converter) limited only by the overvoltage protection.

(Integral Type) Process Temperature  Installation
-40°C to +135°C
Temperature Class -40°C to +199°C WARNING
T4 -40°C to +250°C
T3 –40°C to +250°C • All wiring shall comply with local installation
T2 requirements and local electrical code.
T1
• Use the suitable heat-resisting cables (over
(Remote Type Detector) Process Temperature 90°C) for the digitalYEWFLO Series Vortex
–196°C to +84/[+79]°C Flowmeter when the ambient temperature
Temperature Class exceeds 60°C and/or the process
T6 –196°C to +100°C temperature exceeds 200°C.
T5 –196°C to +135°C
T4 –196°C to +199°C • For flameproof; Cable glands, adapters and/
T3 –196°C to +299/[+289]°C or blanking elements shall be of Ex “d” for Ex
T2 –196°C to +449/[+439]°C “d” installations. They shall be installed so as
T1 to maintain the specified degree of protection
(IP Code) of the flowmeter.
*: Use /HT option above +250°C, use /LT option below -29°C, [ ]
for /MV option. • For ATEX intrinsically safe Ex ic; Cable
glands, adapter and / or blanking elements
Electrical data: shall be of Ex “n”, Ex “e”, or Ex “d” and shall
Supply and Output Circuit (SUPPLY + and –); be installed so as to maintain the specified
degree of protection (IP Code) of the
FISCO Field Device equipment.
Entity Concept:

Maximum Input Voltage Ui: 32Vdc
Internal Capacitance Ci: 3.52nF
Internal Inductance Li: 0mH
Electrical Connection: ANSI 1/2 NPT female,
ISO M20 X 1.5 female

For the connection of DYA to DY-N :
Maximum cable capacitance: 160nF
Electrical Connection: ANSI 1/2 NPT female, ISO

M20 X 1.5 female

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 61

 Operation

WARNING

• In case of Flameproof, wait 3 min. after
power is turned off, before opening the
covers.

• Take care not to generate mechanical
spark when access to the instrument and
peripheral devices in hazardous locations.

 Maintenance and Repair

WARNING

• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void the
certification.

EXPLOSION PROTECTED TYPE INSTRUMENT
FOR FIELDBUS COMMUNICATION TYPE

12

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 62

 Installation Diagram of Intrinsically safe (and Note)

[ Integral type ] [ Remote type ]

Terminator DY Terminator DYA DYC (Signal Cable)
(Flowmeter) (Converter)
DY-N
A (Flowmeter)
B
T A
C B
T(*1)

Field Instrument Field Instrument

Field Instrument Field Instrument
Hazardous Location Hazardous Location

Terminator Non Hazardous Location Terminator Non Hazardous Location

Safety Barriar Safety Barriar

(*1): Wire for T termanal
With temperature sensor type: Installed
Without temperature sensor type: Not Installed

Note

• In the rating 1, the output current of the barrier must be limited by a resistor ‘Ra’ such that Io=Uo/Ra.
• In the rating 2, the output of the barrier must be the characteristics of the trapezoid or the rectangle and this transmitter can be
connected to Fieldbus equipment which are in according to the FISCO model.
• The terminators may be built-in by a barrier.
• More than one field instrument may be connected to the power supply line.
• The terminator and the safety barrier shall be certified.
F1201.ai

Electrical data Ex ia II C Ex ic II C
Rating (Entity)
Maximum Input Voltage Ui Rating1 (Entity) Rating2 (FISCO)
Maximum Input Current Ii 32 Vdc
Maximum Input Power Pi 24 Vdc 17.5 Vdc –
Maximum Internal Capacitance Ci –
Maximum Internal Inductance Li 250 mA 500 mA
3.52 nF
1.2 W 5.5 W 0 mH

3.52 nF 3.52 nF

0 mH 0 mH

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 63

 Name Plate MODEL: Specified model code
[Integral type, Flameproof] SUFFIX : Specified suffix code
STYLE: Style code
*2 SUPPLY : Supply voltage
OUTPUT : Output signal
[Remote type detector, Flameproof] MWP : Maximum working pressure
PROCESS TEMP.: Process temperature
F01.ai K-FACTOR : Device-specific factor
RANGE: Specified range
*2 NO.: Upper column: Manufacturing serial number *1

[Remote type converter, Flameproof] Lower column: The year and month of
protection
F02.ai TAG NO. : Specified TAG No.
CE: CE marking
*2 0344: The indentification number of the notified body
II1G: Group II Category 1 Gas atmosphere
[Integral type, Intrinsically safe Ex ia] II2G: Group II Category 2 Gas atmosphere
II3G: Group II Category 3 Gas atmosphere
*2
*1) The first digit in the final three numbers of the serial number
F03.ai appearing after “NO.” on the name plate indicates the year of
production. The following is an example of a serial number for
[Remote type detector, Intrinsically safe Ex ia] a product that was produced in 2015:
NO. S5K965926 535
↑Produced in 2015

*2) The product-producing country

F04.ai EXPLOSION PROTECTED TYPE INSTRUMENT
FOR FIELDBUS COMMUNICATION TYPE
*2

[Remote type converter, Intrinsically safe Ex ia]

F05.ai

*2

[Integral type, Intrinsically safe Ex ic]

F06.ai

*2 12

[Remote type detector, Intrinsically safe Ex ic]

F07.ai

*2

[Remote type converter, Intrinsically safe Ex ic]

F08.ai

*2

F09.ai

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 64

12.2 FM  Operation

 Technical Data WARNING

• Intrinsically Safe • Take care not to generate mechanical
Applicable Standard: Class 3600: 2011, spark when access to the instrument and
peripheral devices in hazardous locations.
Class 3610: 2010,
Class 3611: 2004,  Maintenance and Repair
Class 3810: 2005,
NEMA 250: 1991, WARNING
ANSI/ISA 60079-0: 2013,
ANSI/ISA 60079-11: 2014, • The instrument modification or part
ANSI/ISA 60079-27: 2006 replacements by other than authorized
Type of Protection : Intrinsically Safe for Class I, representative of Yokogawa Electric
II, III, DIV.1, Groups A, B, C, D, E, F and G, Corporation is prohibited and will void the
T4, and Class I, Zone 0, AEx ia IIB/IIC T4, approval of FM Approvals.
Entity, FISCO
Nonincendive for Class I, II, Div.2, Groups
A, B, C, D, F and G, Class III, DIV.1, Class I,
Zone 2, Group IIC, FNICO

Ambient Temperature :
–40 to +60°C (Integral Type and Vortex Flow
Converter)
–40 to +80°C (Remote Type Detector)

Indoors and Outdoors : Type 4X
Electrical Parameters : Intrinsically Safe

[Entity] Vmax=24 V, Imax=250 mA,
Pi=1.2 W, Ci=3.52 nF, Li=0 mH
[FISCO (IIC)] Vmax=17.5 V, Imax=380 mA,
Pi=5.32 W, Ci=3.52 nF, Li=0 mH
[FISCO (IIB)] Vmax=17.5 V, Imax=460 mA,
Pi=5.32 W, Ci=3.52 nF, Li=0 mH
Nonincendive
Vmax=32 V, Ci=3.52 nF, Li=0 mH
Electrical Connection : ANSI 1/2NPT female

 Wiring
• Intrinsically Safe

NOTE

• If you are using a hand-held terminal in the
hazardous area, read the Control Drawing or
Instruction Manual of handheld terminal.

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 65

 Installation Diagram

Intrinsically Safe (and WARNING)

Model: DY Series Date: April 18, 2014 Model: DY Series Date: April 18,D2a0t1e:4 May 8, 2003
Intrinsically Safe Installation (Remote Type)
Control Drawing
Intrinsically Safe Installation (Integral Type)

,%22 +5+2+/. 1/402 /'55 .8.5.21
42735
,%22 +5+2+/. 1/402 /'55 .8.5.21
42735
,%22 +5+2+/. /'55 .8.5.21

,%22 $/.) 1/40 /'55 &21+ 4273
)-0)1%341) ,%22 !+03+4'674+ /'55 !


!+40.1'624 % .-1'/ '(/+

)1-+.%3/1

% #246+: /29 218+46+4 % #246+: /290+6+4

# !/13)7 ,/6-)3)1
!


# )) 3%&,) &),/6 " % ++ 6'(/+ (+/29 !


!-%7 -%7 #0': 0':
1/; ,24 07/6.8'4.'(/+ 6;3+
/1 /1 24 24
.3+38 + + + + + 16.6; ". . . . .
! " . - # $ 1 0
- 0


























+),( )5+') .+/* +8.)+



%9%1(/42 ,%22+*+)( /'%3+/. '<'4*275 /'55.,.+* 2)'6.21
+),( )5+') .+/* +8.)+ "1)/'55.,.+* 2)'6.21



)1-+.%3/1 .',%22+*+)( /'%3+/. !+40.1'624

22/'+%3)( 552).'6+*
00%1%342 33'4'675

Rev. Doc. No.: IFM021-A20 P.1 Rev. Doc. No.: IFM021-A20 P.2 EXPLOSION PROTECTED TYPE INSTRUMENT
FOR FIELDBUS COMMUNICATION TYPE
Yokogawa Electric Corporation Yokogawa Electric Corporation

Model: DY Series Date: April 18, 2014 Date: May 8, 2003

Notes:

1. This drawing replaces the former control drawing IFM021-A12.

2. No revision to this drawing without prior approval of FM.

3. Installation must be in accordance with the National Electric Code (NFPA70),
ANSI/ISA RP12.06.01 and relevant local codes.

4. The associated apparatus must be FM approved.

5. Control equipment connected to the associated apparatus must not use or generate
more than 250 V a.c. r.m.s or d.c.

6. In case of entity-concept installations, the associated apparatus must be a linear
source which meets the following conditions.

Voc (or Uo) ≤ Vmax (or Ui)
Isc (or Io) ≤ Imax (or Ii)
Po ≤ Pmax (or Pi)
Ca (or Co) ≤ Ci + Ccable
La (or Lo) ≤ Li + Lcable

7. FISCO installation must be in accordance with ANSI/ISA-60079-25 or
ANSI/ISA-60079-27.

8. The control drawing of the associated apparatus must be followed when installing
the flow meter or flow converter.

9. The terminator(s) must be FM approved.

10. The dielectric strength of at least 500 V a.c. r.m.s. between the intrinsically safe 12
circuits and the enclosure of the flow meter or the converter is limited only by the
overvoltage protection. IM 01F06A01-01EN

11. Dust-tight conduit seals must be used when installed in Class II or Class III
environments.

12. Precautions shall be taken to minimize the risk from electrostatic discharge of
painted parts of the enclosure.

13. WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD – SEE USER’S
MANUAL

14. WARNING – IN THE CASE WHERE THE ENCLOSURE OF THE VORTEX FLOW
METER AND CONVERTER ARE MADE OF ALUMINUM, IF IT IS MOUNTED IN
ZONE 0, IT MUST BE INSTALLED SUCH, THAT EVEN IN THE EVENT OF RARE
INCIDENTS, IGNITION SOURCES DUE TO IMPACT AND FRICTION SPARKS
ARE EXCLUDED

15. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC
SAFETY

Rev. Doc. No.: IFM021-A20 P.3

Yokogawa Electric Corporation

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 66

Model: DY Series Date: April 18, 2014 Model: DY Series Date: April 18,D2a0t1e:4 May 8, 2003
Division 2 Installation (Integral Type) Division 2 Installation (Remote Type)

("// '2'/'+* .+1,/ ,$33 +6+3+/. 2/503
("// '2'/'+* .+1,/ ,$33 +6+3+/. 2/503
("// '2'/'+*
,$33 +6+3+/.
("// !+*% .+1, ,$33 #/.( 2/50
%),%."01.% ("//
(-0(2$452( ,$33

%.)'*"0+. (2-+.$4/2 " +*.$, $%,(

+.0%4 (+3)%0%. " !/24(8 ,/7 /.6(24(2 " !/24(8 ,/7-(4(2



)"4 +. ' !-$8 /2 +
!
' * " +
.
' ) +
- .,9 )/2 -5,4+6$2+$%,( 490(


'%($ %2'#% +(,' (6+&(



"6".$+1/ ("//'&'%$ +#"0'+* $:$2'/53 ,$33+)+(' /&$4+/.
'%($ %2'#% +(,' (6+&( .&,$33+)+(' /&$4+/.



%.)'*"0+. *#("//'&'%$ +#"0'+* (2-+.$4/2

+3%. 1,,(5 /7(2 500,9
+*0.+( %-1',)%*0 /.42/, (15+0-(.4

%% +0% (( /4(

Rev. Doc. No.: IFM021-A20 P.4 Rev. Doc. No.: IFM021-A20 P.5

Yokogawa Electric Corporation Yokogawa Electric Corporation
Date: April 18, 2014
Model: DY Series Date: May 8, 2003

Notes:

1. This drawing replaces the former control drawing IFM021-A12.

2. No revision to this drawing without prior approval of FM.

3. Installation must be in accordance with the National Electric Code (NFPA70),
ANSI/ISA RP12.06.01 and relevant local codes.

4. In case Nonincendive Field Wiring Concept is used for the interconnection, FM
approved Associated Nonincendive Field Wiring Apparatus, which meets the
following conditions, must be used as the power supply / control equipment.

Voc (or Uo) ≤ Vmax (or Ui)
Ca (or Co) ≤ Ci + Ccable
La (or Lo) ≤ Li + Lcable

5. FNICO installation must be in accordance with ANSI/ISA-60079-27.
ANSI/ISA-60079-25 allows the use of FNICO field device in “ic FISCO” system.

6. The control drawing of the associated apparatus must be followed when installing
the flow meter or flow converter.

7. The terminator(s) must be FM approved.

8. Dust-tight conduit seals must be used when installed in Class II or Class III
environments.

9. WARNING – EXPLOSION HAZARD. FOR INSTALLATION OTHER THAN
NONINCENDIVE FIELD WIRING, DO NOT DISCONNECT EQUIPMENT WHEN A
FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT

10. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR
DIVISION 2

Rev. Doc. No.: IFM021-A20 P.6
Yokogawa Electric Corporation

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 67

12.3 IECEx Special conditions for safe use

 Technical Data • For process temperatures above +250°C the flow
meters of the /HT version must be used.
• Intrinsically Safe
Applicable Standard: IEC 60079-0: 2011, IEC • Precautions shall be taken to minimize the risk
from electrostatic discharge of painted parts.
60079-11: 2011
• When the enclosure of the flow meter or the flow
Certificate: IECEx DEK 15.0012X converter are made of aluminum, if it is mounted
in an area where the use of EPL Ga equipment
Type of Protection: is required, it must be installed such that, even in
the event of rare incidents, ignition sources due to
Ex ia IIC T4...T1 Ga (Integral Type) impact and friction sparks are excluded.

Ex ia IIC T6...T1 Ga (Remote Type Detector) • The dielectric strength of at least 500 V a.c. r.m.s.
between the intrinsically safe circuits and the
Ex ia IIC T4 Ga (Remote Type Converter) enclosure of the flow meter or the converter is
limited only by the overvoltage protection.
Ambient Temperature:
 Installation
-40 to +60°C (Integral Type)
WARNING
-50 to +80[+78]°C (Remote Type Detector)
• All wiring shall comply with local installation
-40 to +80°C (Remote Type Converter) requirements and local electrical code.

(Option /LT below -29°C, [ ] for Option /MV at T6) • Use the suitable heat-resisting cables (over
90°C) for the digitalYEWFLO Series Vortex
Connect sensor circuit of DYA and DY-N (/HT) Flowmeter when the ambient temperature
exceeds 60°C and/or the process
Electrical Data: temperature exceeds 200°C.

Entity Ui = 24 V, Ii = 250 mA, Pi = 1.2 W, • The cable entry devices shall be certified in
type of protection flame proof enclosure “d”
Ci = 3.52 nF, Li = 0 mH and suitable for the conditions of use and
correctly installed.
FISCO (IIC) Ui = 17.5 V, Ii = 500 mA, Pi = 5.5 W,
• Unused apertures shall be closed with
Ci = 3.52 nF, Li = 0 mH certified blanking elements in type of
protection flame proof enclose “d”.
Temperature Class:
The grounding terminals are located on the inside
(Integral Type) and outside of the terminal area.
Connect the cable to grounding terminal in
Temperature Class Process Temperature accordance with wiring procedure (1) or (2).

T4 ≤ +135°C EXPLOSION PROTECTED TYPE INSTRUMENT
T3 ≤ +200°C FOR FIELDBUS COMMUNICATION TYPE

T2 ≤ +250°C

T1 ≤ +250°C

(Remote Type Detector) Process Temperature*
≤ +84/[+78]°C
Temperature Class ≤ +100°C
T6 ≤ +135°C
T5 ≤ +199°C
T4
T3 ≤ +299/[+288]°C
T2 ≤ +449/[+438]°C
T1

*: Use /HT option above +250 °C, use /LT option below -29 °C, [ ]
for /MV option.

Electrical Connection: ANSI 1/2 NPT female, ISO
M20 X 1.5 female

Case

12

Cable Washer

Screw Screw

Washer Cable Clamp

(1) Internal grounding terminal (2) External grounding terminal
F1202.ai

Figure 12.1 Wiring Procedure for Grounding
Terminals

IM 01F06A01-01EN

<12. EXPLOSION PROTECTED TYPE INSTRUMENT FOR FIELDBUS COMMUNICATION TYPE> 68

 Operation  Name Plate F10.ai

WARNING [Integral type, Flameproof]

• In case of Flameproof, wait 3 min. after *1
power is turned off, before opening the
covers. [Remote type detector, Flameproof]

• Take care not to generate mechanical
spark when access to the instrument and
peripheral devices in hazardous locations.

 Maintenance and Repair *1

[Remote type converter, Flameproof]

WARNING F11.ai

• The instrument modification or parts *1
replacement by other than authorized
representative of Yokogawa Electric [Integral type, Intrinsically safe]
Corporation is prohibited and will void the
certification. F12.ai

 Electrical Connection *1

The type of electrical connection is stamped near [Remote type detector, Intrinsically safe]
the electrical connection port according to the
following codes. F13.ai

Screw size Marking *1
ISO M20 X 1.5 female
ANSI 1/2-14NPT female !M [Remote type converter, Intrinsically safe]
!N
F12.ai
*1

MODEL: Specified model code F12.ai
SUFFIX : Specified suffix code
F1203.ai STYLE: Style code
SUPPLY : Supply voltage
OUTPUT : Output signal
MWP : Maximum working pressure
PROCESS TEMP.: Process temperature
K-FACTOR : Device-specific factor
RANGE: Specified range
NO.: Manufacturing serial number
TAG NO. : Specified TAG No.

*1 The product - producing country

IM 01F06A01-01EN

<13. PED (PRESSURE EQUIPMENT DIRECTIVE)> 69

13. PED (PRESSURE EQUIPMENT
DIRECTIVE)

This chapter is described further requirements and (3) Operation
notices concerning the PED (Pressure Equipment
Directive). The description in this chapter is prior to WARNING
other description in this User’s Manual.
• The temperature and pressure of fluid should
(1) Technical Data be applied under the normal operating
condition.
Pressure Equipment Directive:
Type of equipment: piping • The ambient temperature should be applied
Type of fluid: liquid and gas under the normal operating condition.
Group of fluid: 1 and 2
Module: H • Please pay attention to prevent the
excessive pressure like water hammer,
MODEL DN(mm)* PS(MPa)* PS·DN(MPa·mm) CATEGORY** etc. When water hammer is to be occurred,
please take measures to prevent the
DY015 15 42 630 Article 3,*** pressure from exceeding PS (maximum
Paragraph 3 allowable pressure) by setting the safety
(SEP) valve, etc. at the system and the like.

DY025 25 42 1050 Article 3,*** • When external fire is to be occurred, please
42 1680 Paragraph 3 take safety measures at the device or
DY040 40 system not to influence the flowmeters.
(SEP)
• Please pay attention not to abrade the
II**** metal pipe, when using the fluid to abrade
the metal pipe such as slurry and sand are
DY050 50 42 2100 II**** contained.

DY080 80 42 3360 II****

DY100 100 42 4200 II****

DY150 150 42 6300 III

DY200 200 42 8400 III

DY250 250 42 10500 III

DY300 300 42 12600 III PED (PRESSURE EQUIPMENT DIRECTIVE)

DY400 400 25 10000 III

* PS: Maximum allowable pressure for Flow tube, DN: Nominal
size

** Refered to Table 6 coverd by ANNEX II of EC Directive on
Pressure Equipment Directive 97/23/EC

*** Sound Engineering Practice (SEP)
**** MODELS classified in CATEGORY II shall not be used for

unstable gases of Group 1.
CE Marking is indicated on the name plate of non-explosion
protected type and ATEX explosion protected type.

(2) Installation 13

WARNING

• Please tighten the bolts for piping joint
according to the appropriate torgue values.

• Please take measure to protect the
flowmeters from forces caused by vibration
through piping.

IM 01F06A01-01EN

<INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT> 70

INSTALLATION AND OPERATING
PRECAUTIONS FOR TIIS FLAMEPROOF
EQUIPMENT

Apparatus Certified Under Technical Criteria (IEC-compatible Standards)

1. General 2. Electrical Apparatus of Flameproof Type
of Explosion-Protected Construction
The following describes precautions on electrical
apparatus of flameproof construction (hereinafter Electrical apparatus which is of flameproof
referred to as flameproof apparatus) in explosion- construction is subjected to a type test and certified
protected apparatus. by the Japanese Ministry of Labour aiming at
Following the Labour Safety and Health Laws preventing explosion caused by electrical apparatus
of Japan, flameproof apparatus is subjected to in a factory or any location where inflammable
type tests to meet either the technical criteria for gases or vapours may be present. The flameproof
explosionproof electrical machinery and equipment construction is of completely enclosed type and
(standards notification no. 556 from the Japanese its enclosure shall endure explosive pressures in
Ministry of Labour) (hereinafter referred to as cases where explosive gases or vapours entering
technical criteria), in conformity with the IEC the enclosure cause explosion. In addition, the
Standards, or the “Recommended Practice for enclosure construction shall be such that flame
Explosion-Protected Electrical Installations in caused by explosion does not ignite gases or
General Industries,” published in 1979. These vapours outside the enclosure.
certified apparatus can be used in hazardous In this manual, the word "flameproof" is applied
locations where explosive or inflammable gases or to the flameproof equipment combined with the
vapours may be present. types of protection "e", "o", "i", and "d" as well as
Certified apparatus includes a certification label and flameproof equipment.
an equipment nameplate with the specifications
necessary for explosion requirements as well as 3. Terminology
precautions on explosion protection. Please confirm
these precautionary items and use them to meet (1) Enclosure
specification requirements. An outer shell of an electrical apparatus, which
For electrical wiring and maintenance servicing, encloses live parts and thus is needed to configure
please read “Internal Wiring Rules” in the Electrical explosion-protected construction.
Installation Technical Standards as well as “USER’S
GUIDELINES for Electrical Installations for (2) Shroud
Explosive Gas Atmospheres in General Industry,” A component part which is so designed that the
published in 1994. fastening of joint surfaces cannot be loosened
To meet flameproof requirements, equipment that unless a special tool is used.
can be termed “flameproof” must:
(1) Be certified by a Japanese public authority in (3) Enclosure internal volume
This is indicated by:— the total internal volume
accordance with the Labour Safety and Health of the flameproof enclosure minus the volume of
Laws of Japan and have a certification label in the internal components essential to equipment
an appropriate location on its case, and functions.
(2) Be used in compliance with the specifications
marked on its certification label, equipment (4) Path length of joint surface
name plate and precautionary information On a joint surface, the length of the shortest path
furnished. through which flame flows from the inside to outside
of the flameproof enclosure. This definition cannot
be applied to threaded joints.

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<INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT> 71

(5) Gaps between joint surfaces 5. External Wiring for Flameproof
Apparatus
The physical distance between two mating
surfaces, or differences in diameters if the mating Flameproof apparatus require cable wiring for
surfaces are cylindrical. their electrical connections. For cable wiring, cable
glands (cable entry devices for flameproof type)
Note: The permissible sizes of gaps between joint surfaces, to wiring connections shall be attached. All non-
the path length of a joint surface and the number of joint live metal parts such as the enclosure shall be
threads are determined by such factors as the enclosure’s securely grounded. For details, read the “USER’S
internal volume, joint and mating surface construction, GUIDELINES for Electrical Installations for
and the explosion classification of the specified gases and Explosive Gas Atmospheres in General Industry,”
vapours. published in 1994.

4. Installation of Flameproof Apparatus (1) Cable Wiring

(1) Installation Area • For cable wiring, cable glands (cable entry
devices for flameproof type) specified or
Flameproof apparatus may be installed, in supplied with the apparatus shall be directly
accordance with applicable gases, in a hazardous attached to the wiring connections to complete
area in Zone 1 or 2, where the specified gases are sealing of the apparatus.
present. Those apparatus shall not be installed in a
hazardous area in Zone 0. • Screws that connect cable glands to the
apparatus are those for G-type parallel pipe
Note: Hazardous areas are classified in zones based upon threads (JIS B 0202) with no sealing property.
the frequency of the appearance and the duration of an To protect the apparatus from corrosive gases
explosive gas atmosphere as follows: or moisture, apply nonhardening sealant
Zone 0: An area in which an explosive gas atmosphere such as liquid gaskets to those threads for
is present continuously or is present for long waterproofing.
periods.
Zone 1: An area in which an explosive gas atmosphere is • Specific cables shall be used as recommended
likely to occur in normal operation. by the “USER’S GUIDELINES for Electrical
Zone 2: An area in which an explosive gas atmosphere Installations for Explosive Gas Atmospheres in
is not likely to occur in normal operation and if it General Industry,” published in 1994.
does occur it will exist for a short period only.
• In necessary, appropriate protective pipes
(2) Environmental Conditions (conduit or flexible pipes), ducts or trays shall
be used for preventing the cable run (outside
The standard environmental condition for the the cable glands) from damage.
installation of flameproof apparatus is limited to
an ambient temperature range from –20°C to • To prevent explosive atmosphere from being
+40°C (for products certified under Technical propagated form Zone 1 or 2 hazardous
Criteria). However, some field-mounted location to any different location or non-
instruments may be certified at an ambient hazardous location through the protective pipe
temperature up to +60°C as indicated on the or duct, apply sealing of the protective pipes in
instrument name plates. If the flameproof apparatus the vicinity of individual boundaries, or fill the
are exposed to direct sunshine or radiant heat ducts with sand appropriately.
from plant facilities, appropriate thermal protection
measures shall be taken. • When branch connections of cables is made,
a flameproof or increased-safety connection
box shall be used. In this case, flameproof or
increased-safety cable glands meeting the
type of connection box must be used for cable
connections to the box.

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<INSTALLATION AND OPERATING PRECAUTIONS FOR TIIS FLAMEPROOF EQUIPMENT> 72

6. Maintenance of Flameproof Apparatus CAUTION

To maintain the flameproof apparatus, do Do not attempt to re-process threaded
the following. (For details, read Chapter 10 connections or refinish joints or mating surfaces.
“MAINTENANCE OF EXPLOSION-PROTECTED
ELECTRICAL INSTALLATION” in the USER’S (c) Unless otherwise specified, the electrical
GUIDELINES for Electrical Installations for circuitry and internal mechanisms may be
Explosive Gas Atmospheres in General Industry.) repaired by component replacement, as this
will not directly affect the requirements for
(1) Maintenance servicing with the power flameproof apparatus (however, bear in mind
on. that the apparatus must always be restored to
its original condition). If you attempt to repair
Flameproof apparatus shall not be maintenance- the flameproof apparatus, company-specified
serviced with its power turned on. However, in components shall be used.
cases where maintenance servicing is to be
conducted with the power turned on, with the (d) Before starting to service the apparatus, be
equipment cover removed, always use a gas sure to check all parts necessary for retaining
detector to check that there is no explosive gas the requirements for flameproof apparatus.
in that location. If it cannot be checked whether For this, check that all screws, bolts, nuts, and
an explosive gas is present or not, maintenance threaded connections have properly been
servicing shall be limited to the following two items: tightened.
(a) Visual inspection
(3) Prohibition of specification changes
Visually inspect the flameproof apparatus, and modifications
metal conduits, and cables for damage or
corrosion, and other mechanical and structural Do not attempt to change specifications or make
defects. modifications involving addition of or changes in
(b) Zero and span adjustments external wiring connections.
These adjustments should be made only to
the extent that they can be conducted from the 7. Selection of Cable Entry Devices for
outside without opening the equipment cover. Flameproof Type
In doing this, great care must be taken not to
cause mechanical sparks with tools. IMPORTANT

(2) Repair The cable glands (cable entry devices for
flameproof type) conforming to IEC Standards
If the flameproof apparatus requires repair, turn are certified in combination with the flameproof
off the power and transport it to a safety (non- apparatus. So, Yokogawa-specified cable entry
hazardous) location. Observe the following points devices for flameproof type shall be used to meet
before attempting to repair the apparatus. this demand.
(a) Make only such electrical and mechanical
References:
repairs as will restore the apparatus to (1) Type Certificate Guide for Explosion-Protected
its original condition. For the flameproof
apparatus, the gaps and path lengths of joints Construction Electrical Machinery and
and mating surfaces, and mechanical strength Equipment (relating to Technical Standards
of enclosures are critical factors in explosion Conforming to International Standards), issued
protection. Exercise great care not to damage by the Technical Institution of Industrial Safety,
the joints or shock the enclosure. Japan
(b) If any damage occurs in threads, joints (2) USER’S GUIDELINES for Electrical
or mating surfaces, inspection windows, Installations for Explosive Gas Atmospheres
connections between the sensor and in General Industry (1994), issued by the
terminal box, shrouds or clamps, or external Japanese Ministry of Labour, the Research
wiring connections which are essential in Institute of Industrial Safet
flameproofness, contact Yokogawa Electric
Corporation.

IM 01F06A01-01EN

73

Revision Information

 Title: digitalYEWFLO Series Vortex Flowmeter Installation Manual

 Manual No.: IM 01F06A01-01EN

Edition Date Page Revised Item
1st Mar. 2015
2nd Nov. 2015 — New publication

Front cover Change the Document No./Title
3 Revise web page address
5 Add (7) (8) (9)
7 Revise Figure 2.1 (a) and 2.1 (b)
10 Revise "Pressure and Temperature Taps"
Revision of Chapter 10
39-53 Revision of Chapter 12
59-70 Revise PED

71

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YOKOGAWA ELECTRIC CORPORATION

Headquarters
2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPAN
Phone : 81-422-52-5555
Branch Sales Offices
Osaka, Nagoya, Hiroshima, Kurashiki, Fukuoka, Kitakyusyu

YOKOGAWA CORPORATION OF AMERICA

Head Office
12530 West Airport Blvd, Sugar Land, Texas 77478, USA
Phone : 1-281-340-3800 Fax : 1-281-340-3838
Georgia Office
2 Dart Road, Newnan, Georgia 30265, USA
Phone : 1-800-888-6400/ 1-770-253-7000 Fax : 1-770-254-0928

YOKOGAWA AMERICA DO SUL LTDA.

Praca Acapulco, 31 - Santo Amaro, Sáo Paulo/SP, BRAZIL, CEP-04675-190
Phone : 55-11-5681-2400 Fax : 55-11-5681-4434

YOKOGAWA EUROPE B. V.

Euroweg 2, 3825 HD Amersfoort, THE NETHERLANDS
Phone : 31-88-4641000 Fax : 31-88-4641111

YOKOGAWA ELECTRIC CIS LTD.

Grokholskiy per 13 Building 2, 4th Floor 129090, Moscow, RUSSIA
Phone : 7-495-737-7868 Fax : 7-495-737-7869

YOKOGAWA CHINA CO., LTD.

3F Tower D Cartelo Crocodile Building, No.568 West Tianshan Road,
Shanghai 200335, CHINA
Phone : 86-21-62396262 Fax : 86-21-62387866

YOKOGAWA ELECTRIC KOREA CO., LTD.

(Yokogawa B/D, Yangpyeong-dong 4-Ga), 21, Seonyu-ro 45-gil, Yeongdeungpo-gu,
Seoul, 150-866, KOREA
Phone : 82-2-2628-6000 Fax : 82-2-2628-6400

YOKOGAWA ENGINEERING ASIA PTE. LTD.

5 Bedok South Road, Singapore 469270, SINGAPORE
Phone : 65-6241-9933 Fax : 65-6241-2606

YOKOGAWA INDIA LTD.

Plot No.96, Electronic City Complex, Hosur Road, Bangalore - 560 100, INDIA
Phone : 91-80-4158-6000 Fax : 91-80-2852-1442

YOKOGAWA AUSTRALIA PTY. LTD.

Tower A, 112-118 Talavera Road, Macquarie Park NSW 2113, AUSTRALIA
Phone : 61-2-8870-1100 Fax : 61-2-8870-1111

YOKOGAWA MIDDLE EAST & AFRICA B.S.C.(C)

P.O. Box 10070, Manama, Building 577, Road 2516, Busaiteen 225, Muharraq,
Kingdom of BAHRAIN
Phone : 973-17358100 Fax : 973-17336100

Apr. '15

Printed in USA