Omega’s TX-M12-RTD Series RTD transmitters offer improved performance over conventional in-head transmitters yet are a fraction of their size and weight. Integral M12 connectors maintain IP67 protection and connection integrity while allowing for a quick and simple change of sensor. Two models are available with either 4 to 20 mA or 0 to 10 Vdc output. Default scaling for the full output is 0 to 100°C (32 to 212°F), other ranges can be scaled at time of purchase for an additional charge; or the optional USB programming module (USB-CONFIG-UNIT) will allow the end user to perform scaling.
The TX-M12-RTD transmitter is ideal for use with Omega’s 4-wire PR-21, PR-22 and PRS-M12 Series RTD probes, or any RTD probes with an M12 “A” coded pin style connector which connects directly to theTX-M12-RTD sensor input. Other 2-wire, 3-wire or 4-wire RTD probes, as well as slide wire resistance devices, can be easily connected to the TX-M12-RTD transmitter by using a field mountable M12-R-M-FM or M12-S-M-FM plug style connector. Please see the wiring diagrams below for 2-wire, 3-wire and 4-wire RTDs, as well as other slide wire resistance devices.
Don't forget to order an M12 extension cable to connect your transmitter to your process instrumentation.
SPECIFICATIONS Update Time: 200 mS Response Time: 0.5 seconds Warm-up Time: 1 minute to full accuracy Sensor Connection: 2, 3 or 4-wire M12 Minimum Span: 25°C Thermal Drift Pt100: 0.013 Ω/°C Pt500/Pt1000: 0.063 Ω/°C Accuracy: ±0.2°C + (0.05%) + output accuracy Excitation Current: <200 uA Lead Resistance Effect: 0.002°C/Ω Maximum Lead Resistance: 20 Ω per leg Operating Ambient: -40 to 85°C; 10 to 90% RH (non condensing) Configuration Ambient: 10 to 30°C Weight: Approx 100 g 4 to 20 mA Output Model Output Type: 2-wire, 4 to 20 mA current loop Output Range: 4.0 to 20.0 mA Output Connection: M12 connector Output Limits: 3.8 to 21.5 mA Accuracy: mA output/2000 or 5 uA (whichever is the greater) Loop Voltage Effect: 0.2 uA/V Thermal Drift: 1 uA/°C Maximum Output Load: [(Vsupply-10)/20] KΩ Start Up Time 4 Seconds: I out < 4 mA during start up Power Supply: 8 to 30 Vdc 0 to 10 Vdc Output Model Output Type: 3-wire voltage Output Range: Selectable within 0 to 10V Current Drive: 2 mA max Output Connection: M12 connector Output Limits: -0.1 to 10.5V Accuracy: Voltage output/1000 or 5 mV (whichever is the greater) Thermal Drift: 1 mV/°C Minimum Output: Load 5000 Ω Power Supply: 12 to 30 Vdc