You should consider APAQ-R130-TTC T thermocouple transmitters. Because they let you use T thermocouples with spare PLC 4-20mA inputs for temperature measurement.
T Thermocouple temperature transmitters
The APAQ-R130-TTC series is a versatile family of loop powered 4-20mA thermocouple temperature transmitters, because the signal range is scalable to alternate T thermocouple temperature spans within sensor range, and the supply voltage range is from 7.5 to 36Vdc. As well as the output circuit is reverse connection protected and filtered.
When you have spare PLC 4-20mA inputs, and need to add temperature measurement, use the APAQ-R130-TTC thermocouple transmitter. Because the APAQ-R130-TTC thermocouple transmitters allow the simple measurement of industry standard thermocouples. They use the standard 4-20mA signal. So, you can easily connect your existing T thermocouples to modern control systems. They are a simpler way to add temperature measurement to a PLC than other types. T thermocouples have higher precision than other thermocouples. Because T thermocouples are accurate at low temperatures, they are useful in HVAC systems, refrigeration systems, chillers, environmental monitoring, computer room monitoring, dryer, and other limited temperature range applications.
When you need a 0-50C T thermocouple 4-20mA 2 wire loop powered temperature transmitter, use the APAQ-R130-TTC. In other words, T thermocouple 4-20mA transmitters are a simple way to add temperature measurement to a PLC.
Specifications
PLUGGABLE EURO ELECTRICAL CONNECTORS
SNAP ON MOUNTING BASE FOR DIN RAIL OR SURFACE MOUNTING
WIDE 4-20mA LOOP SUPPLY RANGE FROM 7.5-36V
USED IN REMOTE MONITORING
MEASURE 10K OHM INDUSTRY STANDARD T THERMOCOUPLE TEMPERATURE SENSORS
READ TRANSMITTER WITH PLC, RTU, PC A-D SYSTEMS
USE WITH 20mA, 5V, 10V MEASUREMENT SYSTEMS *
MOUNTING: 35mm DIN rail or surface mountable snap on base
SUPPLY RANGE: 7.5 TO 36Vdc
SIGNAL OUTPUT: 4-20mA (LOOP POWERED)**
CONNECTIONS: 30-12awg wire
INPUT RANGE: 0 to 50C, -10 to 50C, 0 to 75C, -10 to 75C
INPUT TYPE: T thermocouple
RESPONSE: 10ms
DIMENSIONS: 9.8 X 1.75 X 6.3 cm (height above rail)
* Voltage ADCs require a loop termination resistor
** 4-20mA signal uses a 2 wire connection. Connect output in series, with supply and measurement device.