User’s
Manual
YTA70
Temperature Transmitter
IM 01C50C03-01EN
7th Edition: July 2011 (YK)
All Rights Reserved, Copyright © 1999, Yokogawa Electric Corporation
IM 01C50C03-01EN
7th Edition
YOKOGAWA ELECTRIC CORPORATION
Headquarters
2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JAPAN
Branch Sales Offices
Nagoya, Osaka, Hiroshima, Fukuoka, Sendai, Ichihara, Toyota,
Kanazawa, and Kitakyusyu.
YOKOGAWA CORPORATION OF AMERICA
2 Dart Road, Newnan, Georgia 30265-1094, U.S.A.
Phone : 1-800-888-6400 Fax : 1-770-254-0928
YOKOGAWA EUROPE B. V.
Euroweg 2, 3825 HD Amersfoort, THE NETHERLANDS
Phone : 31-88-4641000 Fax : 31-88-4641111
Branch Sales Offices / Wien (Austria), Zaventem (Belgium),
Ratingen (Germany), Madrid (Spain), Runcorn (United Kingdom),
Milano (Italy), Velizy-Villacoublay (France), Budapest (Hungary),
Stockholm (Sweden), Sola (Norway), Warszawa (Poland),
Vila Nova de Gaia (Portugal), Bucharest (Romania), Dublin (Ireland)
YOKOGAWA AMERICA DO SUL LTDA.
Praca Acapulco, 31 - Santo Amaro. Sao Paulo/SP - BRAZIL
Phone : 55-11-5681-2400 Fax : 55-11-5681-4434
YOKOGAWA ELECTRIC ASIA PTE. LTD.
5 Bedok South Road, 469270 SINGAPORE
Phone : 65-6241-9933 Fax : 65-6241-2606
YOKOGAWA ELECTRIC KOREA CO., LTD.
14-1, Yangpyongdong-4Ga, Youngdeungpo-Gu, Seoul, 150-866 KOREA
Phone : 82-2-2628-6000 Fax : 82-2-2628-6400
YOKOGAWA AUSTRALIA PTY. LTD.
Tower A, 112-118 Talavera Road, Macquarie Park,
N.S.W.2113, AUSTRALIA
Phone : 61-2-8870-1100 Fax : 61-2-8870-1111
YOKOGAWA INDIA LTD.
Plot No.96 Electronic City Complex, Hosur Road, Bangalore 560100, INDIA
Phone : 91-80-4158-6000 Fax : 91-80-2852-1442
YOKOGAWA CHINA CO., LTD.
3F TowerD Cartelo Crocodile Building
No.568 West Tianshan Road, Shanghai 200335, CHINA
Phone : 86-21-62396262 Fax : 86-21-62387866
June '10
SAFETY INSTRUCTIONS
Ex/I.S. installation:
• For correct use and installation the manufacturer’s manual must be followed.
When programming the Transmitter by PC and communication interface or a
HART® terminal the intrinsically safe data shall be observed.
• The designation galvanic isolation between the transducer input and the
loop supply indicates signal isolation only. It shall not be interpreted as an
Intrinsically Safe galvanic isolation like an isolating barrier. Therefore ordinary
care in selecting barrier and grounding shall be considered.
• The apparatus must be installed in an enclosure with an Ingress Protection of
at least IP 20.
• The terminals 1 and 2 of the equipment have to be electrically connected to a
linear barrier located in the non hazardous area.
• For Ex/I.S. data, see chapter 7. Approvals Options.
The YTA70 is a head mount type of temperature transmitter that accepts
thermocouple or RTD input and converts it to a 4 to 20 mA DC signal for
transmission. The YTA70 species HART communication protocol for remote
conguration.
It is imperative that usres observe the instructions in this manual to ensure the
protection and safety of operators.
1. Model and Sufx Codes
Model Sufx code Descriptions
YTA70 . . . . . . . . . . Temperature Transmitter
Output Signal -E . . . . . . . . 4 to 20mA DC with digital communication
(HART protocol)
Optional
Specications
/KS2 CENELEC ATEX (KEMA) intrinsically safe
approval
/DS2 FM intrinsically safe/Nonincendive and CENELEC
ATEX (KEMA) intrinsically safe approval
combination
/SS2 IECEx intrinsically safe, FM intrinsically safe/
Nonincendive, and CENELEC ATEX (KEMA)
intrinsically safe approval combination
2. Warranty
The warranty period of the instrument is as of condition shown when purchasing.
Any trouble arising during the warranty period shall be replaced at free of charge.
The following problems or troubles shall not be eligible of charge-exempt repair.
• Caused by improper usage or storage of the customer which exceeds the
specication requirements.
• Caused by mishandling or modication.
• Caused by re, earthquake or other acts of God that are not directly a result of
problems of the instrument.
3. Handling Precautions
(1) Read this manual throughly and carefully before handling the instruments.
Observe the instructions.
(2) Store the product in location that meets the following requirements.
• No exposure to rain or water
• No major mechanical vibration or shock
• Humidity and Temperature limitations
• Ordinary conditions(25°C, 65%) is preferable.
Otherwise, as of specied in “Standard Specications.”
(3) Avoid corrosive atmosphere for storage and installation.
(4) For safe installation of the transmitter in hazardous area, the
following must be observed. The module must only be installed by qualied
personnels who are familiar with the national and international laws, directives,
and standards that apply to this area.
(5) Yokogawa will not be liable for malfunctions or damage resulting from any
modication made to this instrument by the customer.
4. Standard Specications
Accuracy (see table below)
Sensor
Standard
type
<T/C>
B IEC584 400 to 1820 752 to 3308 200 360 ±0.1% of span or ±1.0°C
E -100 to 1000 -148 to 1832 50 90 ±0.1% of span or ±0.5°C
J -100 to 1200 -148 to 2192 50 90
K -180 to 1372 -292 to 2502 50 90
N -180 to 1300 -292 to 2372 100 180
R -50 to 1760 -58 to 3200 200 360 ±0.1% of span or ±1.0°C
S -50 to 1760 -58 to 3200 200 360
T -200 to 400 -328 to 752 50 90 ±0.1% of span or ±0.5°C
L DIN43710 -100 to 900 -148 to 1652 50 90
U -200 to 600 -328 to 1112 75 135
W3 ASTM 0 to 2300 32 to 4172 200 360 ±0.1% of span or ±1.0°C
W5 0 to 2300 32 to 4172 200 360
<RTD>
Pt100 IEC751 -200 to 850 -328 to 1562 10 18 ±0.1% of span or ±0.1°C
Ni100 DIN43760 -60 to 250 -76 to 482 10 18 ±0.1% of span or ±0.2°C
DC Voltage -800 to 800 [mV] 2.5 [mV] ±0.1% of span or
Resistance 0 to 7000 [Ω] 25 [Ω] ±0.1% of span or ±0.1Ω
Input ranges
°C °F °C °F
Cold Junction Compensation Accuracy(For T/C only)
±1°C (±1.8°F)
Ambient Temperature Effects (per 10°C Change)
For E, J, K, L, N, T and U thermocouple inputs:
±0.05% of span or ±0.25°C, whichever is greater
For R, S, B, W3 and W5 thermocouple inputs:
±0.05% of span or ±1°C, whichever is greater
For Pt100 and Ni100 RTD inputs:
±0.05% of span or ±0.05°C, whichever is greater
For DC voltage input:
±0.05% of span or ±5µV, whichever is greater
For Resistance(ohm) input:
±0.05% of span or ±0.05Ω, whichever is greater
Power Supply Effects
±0.005% of FS per Volt
RFI Effects
Tested per EN 61326, eld intensity up to 10 V/m.
EMC Conformity
EN 61326
Maximum Zero Offset
±50% of the maximum temperature
Input Signal Source Resistance (for T/C input)
10 MΩ, or 3 kΩ at power-off
Input Lead Wire Resistance (for RTD input)
5 Ω per wire or lower
Burnout
High(NAMUR NE43 upscale) , Low(NAMUR NE43 downscale) or value within
3.5 to 20 mA
Output
Two wire 4 to 20 mA DC
Response Time
1 to 60 sec programmable
Ambient Temperature Limits (Option code may affect limit)
–40 to 85°C (–40 to 185°F)
Ambient Humidity Limits
5 to 90% RH at 40°C (104°F)
Supply Voltage
8 to 35 V DC
8 to 30 V DC for Intrinsically safe type
13.8 to 35 V DC for digital communication
Load Resistance
Limitation: 0 to (E–8)/0.0236 [Ω], where E is power supply voltage.
Isolation
Input/output isolated to 1500 V AC.
Mounting
DIN form B head mounting
Terminals
M3 screws
Weight
50 g (0.11 lb)
Minimum
span
Accuracy
(value whichever is greater)
±0.01mV
5. Block Diagram
0_16
mA
1
2
supply +
8–35VDC
supply -
4–20 mA
A
F01E.ai
mV
mV
RTD.lin.R
+
-
-
Wire
4 3 2
TC
6
5
+
Int.
MUX
CJC
-
4
3
PGA
A/D
CPU
EEPROM
4 mA
HART
Comm.
D/A
YTA70
6. Wiring
See wiring diagram. For output signal, use twisted pair or cables with performance
equivalent to 600V vinyl insulate cable. For wiring in high or low temperature, use
a wire or cable suitable for such temperature. Use cables and wires which meet
atmospheric conditions. Take necessary measure to avoid corrosion or damage of
cables and wires.
IMPORTANT
When mounting on a sensor head, do not overtighten the screws.
Wiring Diagram
n
1
SUPPLY
2
3
(–)
4
5
(+)
6
T/C or
DC milivolts
Dimensions
n
+
−
3
3
−
2
33 (1.30)
(+)
(–)
+
5 4
1
1
2
3
4
5
6
RTD or ohm
Ø6
6
(0.24)
SUPPLY
(B)
(A)
Two-wire
(+)
(–)
Ø 44 (1.73)
20.2
(0.80)
1
2
3
4
5
6
(+)
SUPPLY
(–)
(B)
(B)
(A)
Three-wire
RTD or ohm
Unit : mm (approx. inch)
1
2
3
(B)
4
(B)
5
(A)
6
(A)
Four-wire
RTD or ohm
F03E.ai
(+)
SUPPLY
(–)
F02E.ai
7. Approvals Options
7.1 CENELEC ATEX (KEMA) Intrinsically safe model (/KS2,
/DS2, /SS2)
ATEX Certicate: KEMA 10 ATEX0027
Applicable Standard: EN 60079-0: 2006, EN 60079-11: 2007,
EN 60079-26: 2007, EN 61241-0: 2006, EN 61241-11: 2006
[ Installation diagram ]
Zone 0, 1, 2, 20, 21, 22
T4: -40 ≤ Ta ≤ 85°C
T6: -40 ≤ Ta ≤ 60°C
Terminal: 3, 4, 5, 6
Uo: 9.6 VDC
Io: 28 mA
Po: 67 mW
Lo: 35 mH
Co: 3.5 μF
6
5
4
3
YTA70
Terminal: 1, 2
Ui: 30 VDC
Ii: 120 mA
Pi: 0.84 W
Li: 10 μ H
Ci: 1.0 nF
Non-hazardous AreaHazardous Area
1 +
2 -
Barrier
F04E.ai
1
Maximum Ambient Temperature for gas-proof
For T4: 85°C, For T6: 60°C
Maximum Surface Temperature for dust-proof
For T4: T105°C (Ambient Temperature: –40 to 85°C)
For T6: T85°C (Ambient Temperature: –40 to 60°C)
7.2 FM Intrinsically safe/Nonincendive model (/DS2, /SS2)
Applicable Standard: FM 3600, FM 3610, FM 3611, FM 3810
Installation diagram
[ Intrinsically safe ]
Hazardous (Classified) Location
Class I,Division1, Groups, A,B,C,D
Class II Division 1 Groups E,F,G or
Class I, Zone 0, IIC
Ambient temperature limits
T4: -40 to +85 deg. Celcius
T6: -40 to +60 deg. Celcius
Terminal 3,4,5,6
Vt or Uo: 9.6 V
It or Io: 28 mA
Pt or Po: 67.2 mW
Ca or Co: 3.5 uF
La or Lo: 35 mH
sensor
6
5
YTA70
4
3
Terminal: 1 , 2
Vmax or Ui: 30 V
Imax or Ii: 120 mA
Pmax or Pi: 0.84 W
Ci: 1 nF
Li: 10 uH
Non-hazardous Location
Associated Apparatus
1 +
2 -
entity Parameters:
UM ≤ 250V
Voc or Uo ≤ Vmax or Ui
Isc or Io ≤ Imax or Ii
Po ≤ Pi
Ca or Co ≥ Ci + C cable
La or Lo ≥ Li + L cable
This device must not be
connected to any
associated apparatus
which uses or generates
more than 250 VRMS
or Barrier
with
[ Nonincendive ]
Hazardous (Classified) Location
Class I,Division2, Groups, A,B,C,D
Class I, Zone 2, IIC
Ambient temperature limits
T4: -40 to +85 deg. Celcius
T6: -40 to +60 deg. Celcius
6
5
4
sensor
3
YTA70
Terminal: 1 , 2
Vmax: 35 V
Ci: 0 μ F
Li: 10 uH
Non-hazardous Location
Associated Apparatus
1 +
Voc or Vt ≤ Vmax
2 -
Ca ≥ Ci + C cable
La ≥ Li + L cable
This device must not be
connected to any
associated apparatus
which uses or generates
more than 250 VRMS
or Barrier
F05E.ai
7.3 IECEx Scheme Intrinsically safe model (/SS2)
Certicate No.: IECEx KEM 10.0086
Applicable Standard: IEC 60079-0:2007-10, IEC 60079-11:2006,
IEC 60079-26:2006, IEC 61241-11:2005
[ Installation diagram ]
Zone 0, 1, 2, 20, 21, 22
T4: -40 ≤ Ta ≤ 85°C
T6: -40 ≤ Ta ≤ 45°C
Terminal: 3, 4, 5, 6
Uo: 9.6 VDC
Io: 28 mA
Po: 67 mW
Lo: 35 mH
Co: 3.5 μF
6
5
4
3
YTA70
Terminal: 1, 2
Ui: 30 VDC
Ii: 120 mA
Pi: 0.84 W
Li: 10 μ H
Ci: 1.0 nF
Non-hazardous AreaHazardous Area
1 +
2 -
Barrier
F06E.ai
8. HART Communication
8.1 Connection and Requirements
A standard HART communicator can be used for programming the YTA70. The
HART communicator must be loaded with the appropriate DDL driver for YTA70.
Minimum loop resistance is 250Ω. If the receiving equipment has a lower
resistance, a serial resistor must be inserted to communicate with the HART
communicator.
Control room
Relaying
terminals
+
−
YTA70
HART
communicator
communicator
Connection
600
E-8
R=
External
load
resistance
(Ω)
R
0.0236
250
8.0
Power supply voltage E (V DC)
Communication requirement
8.2 Parameters
Online Menu
1.Device
setup
2.PV
3.Electr
4.Snsr1
5.PV AO
6.PV %rnge
(Device setup)
1.Process
Variable
2.Diag/
Service
3.Basic
Setup
4.Detailed
Setup
5.Review
(Process Variables)
1.PV
2.Electr
3.Snsr1
4.PV AO
5.PV % rnge
(Diag/Service)
1.Status
2.Loop test
3.Calibration
4.Write
Protection
5.Read
max/min log
6.Reset
max/min
(Basic Setup)
1.Tag
2.Range
values
3.Sensor
config
4.PV Damp
5.Snsr s/n
(Detailed setup)
1.Sensors
2.Signal
condition
3.Output
condition
4.Device
information
HART
13.8
Terminal board
communicator
Digital
Communication
range
21.8
(Status)
1.Sensor errors
2.ADC errors
3.Misc. errors
(Calibration)
1.Range values
2.D/A trim
3.Scaled
D/A trim
4.Override
D/A trim
1.Write protect
2.New password
(Range values)
1.PV LRV
2.PV URV
3.PV unit
4.LSL
5.USL
(Sensors)
1.Process
sensor
2.Electr
(Signal condition)
1.PV LRV
2.PV URV
3.PV unit
4.PV % rnge
5.PV Damp
(Output condition)
1.Analog
output
2.HART
output
Distributor
HART
35.0
F08E.EPS
(Range values)
1.PV LRV
2.PV URV
3.PV unit
4.LSL
5.USL
(Process sensor)
1.PV
2.Snsr1
3.PV unit
4.Sensor setup
5.Sensor info
(Analog output)
1.PV AO
2.Output rnge
3.Sensor error
values
4.Loop test
5.Scaled
D/A trim
6.D/A trim
7.Override
D/A trim
(HART output)
1.Poll addr
2.Num req preams
3.Num resp preams
F07E.ai
(Cable resistance)
1.Enter value
2.Measure value
(Sensor setup)
1.Sensor config
2.Error detection
3.Cable
resistance
4.Snsr s/n
1.USL
2.LSL
3.Min span
(Output range)
1.AO 0%
2.AO 100%
3.AO lo lim
4.AO up lim
(Sensor error values)
1.Broken sensor
2.Shorted sensor
(Broken/shorted
sensor)
1.Br(Sh) sensor
2.NAMUR down
3.NAMUR up
F09E.ai
Parameters List
HART
Communicator
PV Measured variables in engineering
Process
Variable
Item
Process
Variable
Electr Terminal temperature —
Output
value
PV AO Output value in mA —
PV % rnge Output value with respect to the
PV Log Read max/min log Reads the maximum/minimum PV
Reset max/min Clears the PV maximum/minimum
Signal
Condition
Range
value
PV LRV/PV URV Lower/upper range value to
Range Limit LSL/USL Shows the max./min. usable value
Unit PV unit Engineering unit to be displayed
Damping PV Damp Damping time constant in seconds
Sensor
Setup
Sensor
cong
Sensor type
(wire, unit)
RTD factor For RTD only. Leave it to “1.” 1
Cold Junction
Compensation
Sensor
Errors
Cable
resistance
Error detection Type of sensor errors to be
Enter value Enter new value of the RTD/ohm
Measure value Actually measure the cable
Output
Condition
Minimum
span limit
Analog
Output
range
Min.span Minimum settable span —
AO 0%(100%) Output value for 0%(100%) in mA. 4(0%)
AO lo(up) lim Output lower(upper) limit in mA.
Sensor Error
values
Loop test Change the output manually for
Diagnostics Error status Sensor errors Show error status related to a
ADC errors Show error status related to
Misc. errors Show error status related to a
Selection/Setting Range
unit.
range in %
stored in the memory
log and restart logging
denes the 0%/100% value of the
measurement
for upper/lower range value
with such digital value as PV, URV,
LRV, USL, LSL,min.span, etc.
applied to the digital value. 0 to
62.5(s)
Sensor type and related settings.
[When T/C or milivolts is selected]
Always select “single” for a
measurement type.
[When RTD or ohm is selected]
Always select 2-, 3- or 4-wire but
others for the number of sensor
wires.
For T/C only. Always leave it to
“1.internal sensor.”
detected for burnout operation.
(1)No test performed, (2)broken
sensor, (3)shorted sensor*3, or
(4)broken & shorted*3
cable resistance for compensation.
resistance of 2-wire RTD/ohm for
compensation.
NAMUR, or 3.8 to 23mA
Enter or select the output value
when sensor error is detected.
NAMUR upscale, NAMUR
downscale, or value within 3.5
to 23mA
testing the loop.
4mA, 20mA, or value within 3.5
to 23mA
sensor. When any one of the errors
turns "ON", check the sensor and
wiring.
analog to digital conversion.
When any one of the errors turns
"ON", Repower the device. If error
remains, replace the device.
device. When any one of the errors
turns "ON", Re-power the device. If
error remains, replace the device.
Initial
Setting
—
—
—
—
LRV: 0
URV:100
*1
—
°C
0.43(s) *1
Pt100
3-wire
°C
*1
Internal
sensor
broken
sensor
5 (ohm)
—
20(100%)
NAMUR
NAMUR
upscale
[high]
*1
—
—
—
—
Item
Calibration Write
protection
Apply trim D/A trim Allows the calibration of a selected
Clear trim Override D/A trim Overrides any previous
HART
Communicator
Write protect Write-protects the device, if correct
New password Sets a new password for wirte
Scaled D/A trim Allows the calibration of the analog
Selection/Setting Range
password is entered. *2
protection, if correct password is
entered.
analog output with an external
reference at the operating
endpoint.
output with the external reference
which is scaled at 0 to 100%.
D/A trimming by restoring factory
calibration values.
Initial
Setting
Not
protected
—
—
—
—
Device information Manufacturer Manufacturer identication code Yokogawa
Model Model name YTA70-E
TAG Tag number, up to 8
Descriptor Text which can be used by user in
Message Text which can be used by user in
Date Date information. MM/DD/YY. Not
Write protect Indicates whether the device is
alphanumerical characters.
any way. Up to 16 alpha-numerical
characters
any way. Up to 32 alpha-numerical
characters
inclemented. The date is updated
whenever changing conguration
via PC congurator.
write-proteced.
—
—
—
Factory
calibration
date
Not
protected
Snsr s/n Not used. 0
Final assembly
number
Not used. 0
Distributor — Yokogawa
Revision #'s Software/hardware revision
Status Error stauts (see “Error status” in
number
this table.)
—
—
Review Input info List of input variables —
Output info List of output variables —
Device information See “Device information” in this
table.
—
*1: Or as specied upon ordering.
*2: The initial setting of password upon shipment is "********".
*3: With T/C or milivolts for sensor type, the alarm is generated when the input
signal drops down below 2.5 mV.
Revision Record
● Manual No. : IM 01C50C03-01EN
● Title : YTA70 Temperature Transmitter
Edition Date Page Revised item
1st Mar. 1999 — New Publication.
2nd June 1999 1
3rd Feb. 2000 2,3
4th Mar. 2002 12Change Optional code KS1 and DS1 to KS2 and DS2
5th July 2003 1,5,6 Delete code "/KS1" and "/DS1".
6th Feb. 2007 2,3,6 Add handling precaution.
7th July 2011 Change marking for KS2 and DS2.
Add code "/DS1" in the table
Add "7.2 FM intrinsically safe model"
6
Add "note 2" .
10
Revise accuracy & temperature effect.
Correct "Isolation".
4
Add explanation
9
Add "Note".
11
respectively.
Add description(4) based on ATEX directives.
Change specications of FM Intrinsically safe model.
Change Certicate number and applicable standard.
Change electrical data.
Add 7.3 IECEx scheme approval.
2