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YTA70 Head Mount Temperature Transmitter
Brand: Yokogawa Electric CorporationThe YTA70 is a head mount type of temperature transmitter that accepts thermocouple, RTD, ohms or DC milivolts input and converts it to a 4-20 mA DC signal for transmission.
The YTA70 conforms to the standard DIN form B head mounting. The YTA70 supports HART communication protocol.
HART protocol revision is selectable from HART 5 or HART 7, and HART 7 features long tag number up to 32 characters, enhanced burst mode and event notification, and command aggregation function.
Features- 4 to 20 mA DC Analog Output
- HART 5 Digital Protocol Output (-E version)
- Selectable HART 5 / 7 Digital Protocol Output (-J version)
- 17 Input Types
- Head Mount or DIN Rail Mount
Specifications
Accuracy
- ± 0.1 % of Span or ± 0.01 mV whichever is greater - DC Voltage
- ± 0.1 % of Span or ± 0.1 ohm whichever is greater - Resistance
- ± 0.1 % of Span or ± 0.1° C (± 0.18° F) whichever is greater - RTD Pt100
- ± 0.1 % of Span or ± 0.2° C (± 0.36° F) whichever is greater - RTD Ni100
- ± 0.1 % of Span or ± 0.5° C (± 0.9° F) whichever is greater - E, J, K, N, T, L, U Thermocouples
- ± 0.1 % of Span or ± 1.0° C (± 1.8° F) whichever is greater - B, R, S, Lr, W3 & W5 Thermocouples
- ± 1° C (± 1.8° F) whichever is greater - Cold Junction Compensation Accuracy (Thermocouples)
Ambient Temperature Range
- -40° to 85° C (-40° to 185° F)
Approvals & Certifications
- ATEX: Intrinsically Safe
- EMC EN 61326-1 Class A, EN 61326-2-3
- FM Intrinsically Safe/Non-Incendive
- GOST 3044-84
- IEC Ex: Intrinsically Safe
Communication
- HART 5, 7
Electrical Connectors
- DIN 43710
- M3 Screws - Terminals
Enclosure Finish
- Red Paint
Enclosure, Body Material
- Polycarbonate
Humidity
- 0 to 95 % Non-Condensing Relative Humidity - Ambient Humidity Limits
Input
- -800 to 800 mV
Isolation
- 1,500 Vac - Input/Output Isolation
Load
- 250 to 600 ohms - for Digital Communication
Mounting
- DIN Form B Connection Head
Output
- 4-20 mA DC - 2-Wire
Power Supply Effect
- ± 0.005 % of Full Scale Per Volt
Resistance
- 0 to 7,000 ohms - Input Range
- 10 megaohms - Input Resistance (For Thermocouples, mV)
- 3 kiloohms at Power-Off - Input Resistance (For Thermocouples, mV)
- 5 ohms Per Wire or Lower - Input Lead Wire Resistance (For RTDs, ohm)
Response Time
- 1 to 60 seconds Programmable
RTD Type
- Ni100 as Per DIN 43760
- Pt100 as Per IEC 60751
Sensor Protection
- Burn-Out: High (NAMUR NE43 UpScale) & Low (NAMUR NE43 Downscale) or Value within 3.5-23 mA
Sensor, Probe Connection
- 2-Wire RTD or ohm
- 3-Wire RTD or ohm
- 4-Wire RTD or ohm
- T/C or DC mV
Sensor, Probe Type
- B Thermocouple as Per IEC 60584
- E Thermocouple as Per IEC 60584
- J Thermocouple as Per IEC 60584
- K Thermocouple as Per IEC 60584
- Lr Thermocouple as Per GOST 3044-84
- L Thermocouple as Per DIN 43710
- N Thermocouple as Per IEC 60584
- RTD
- R Thermocouple as Per IEC 60584
- S Thermocouple as Per IEC 60584
- T Thermocouple as Per IEC 60584
- U Thermocouple as Per DIN 43710
- W3 Thermocouple as Per ASTM E988-90
- W5 Thermocouple as Per ASTM E988-90
Span - Minimum
- 10° C (18° F) - RTD Typicals
- 2.5 mV - DC Voltage
- 200° C (360° F) - Thermocouples
- 25 ohms - Resistance
Supply Voltage
- 13.8-35 Vdc - for Digital Communication
- 8-30 Vdc - for Intrinsically Safe Typical
- 8-35 Vdc - for Operation
Temperature Effect
- ± 0.05 % of Span or ± 0.05 ohm Per 10° C (18° F) whichever is greater - Resistance
- ± 0.05 % of Span or ± 0.05° C (± 0.09° F) Per 10° C (18° F) whichever is greater - RTD Typical
- ± 0.05 % of Span or ± 0.25° C (± 0.45° F) Per 10° C (18° F) whichever is greater - E, J, K, N, T, L, U Thermocouples
- ± 0.05 % of Span or ± 1.0° C (± 1.8° F) Per 10° C (18° F) whichever is greater - B, R, S, Lr, W3, W5 Thermocouples
- ± 0.05 % of Span or ± 5 μV Per 10° C (18° F) whichever is greater - DC Voltage
Temperature Range
- -200° to 2,300° C (-328° to 4,172° F) - Thermocouples
- -200° to 850° C (-328° to 1,562° F) - RTD
Zero Offset
- ± 50 % of Selected, Max.
