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Head Mount Temperature Transmitter


TX1HM is a head-mounted “all-in-one” 2-wire temperature transmitter. Its high reliability industrial design offers some rare functions, e.g. 4~20 mA or 20~4 mA selection. The flat design gives easy access to terminals and adjustments and a large central hole lets the lead wires or an insert tube pass easily.

TX1HM accepts input from Pt100 RTD sensors through a 3-wire connection and can be also be supplied with inputs such as Pt50, Pt200, Pt500 and Pt1000. An LED on the unit indicates it is operating. It is accurate to 0.1% of span. TX1HM is user-adjustable for 8 overlapping ranges in °C or °F and gives a temperature linear output. All selections are made by solder jumpers and it is calibrated via ‘Fine’ ZERO/SPAN potentiometers.This product also features sensor-break upscale/downscale jumper selectable option.

This temperature transmitter is powered by a 6.5 - 32 V DC loop supply. This is one of the lowest loop drops in its class.

  • Solder jumpers for - Upscale / Downscale for sensor break, 4-20 mA / 20-4 mA, 8 span ranges from 25 to 600 °C, 4 zero ranges from - 100 to +70 °C, 4-20 mA or 20-4 mA selection, °C / °F
  • Low profile allows use in small RTD head
  • Accuracy: 0.1% of span
  • 6.5 V loop drop allows 800 ohms load @ 24 V DC
  • ON LED shows state


  • Temperature


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