The ROI-XMA series is a versatile family of loop powered 4-20mA thermistor temperature transmitters. Versions can be provided for thermistor Base Resistance (Ro), between 1K and 100Kohm impedance (@ 25 Deg C). Signal range can be custom scaled to alternate thermistor temperature spans within sensor range. Transmitter supply voltage may be from 7.5 to 36Vdc. Output circuit is reverse connection protected and filtered.
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 NTC THERMISTOR 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: 0-75C
INPUT TYPE: 10K OHM NTC 2 WIRE THERMISTOR
DIMENSIONS: 4.510 X 1.258 X 3.948 (height above rail) LWH***
* Loop termination resistor required when used with voltage ADC
** 4-20mA signal uses a 2 wire connection. Resistance transmitter output is connected in series, with supply and measurement device.
*** Mated connector adds additional 3/8” to height.
Use spare PLC 4-20mA inputs for temperature sensor measurement, with the ROI-XMA thermistor transmitter. ROI-XMA thermistor transmitters allow the simple measurement of industry standard thermistors. Existing 10K ohm NTC thermistors can be connected to modern control systems. The thermistor is a simple way to add temperature sensor measurement to a PLC. The thermistor is ideally suited for limited temperature ranges can be used to achieve higher precision than other temperature sensors. Useful in HVAC systems, refrigeration systems, chillers, environmental monitoring, computer room monitoring, dryer, and other limited temperature range applications.