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TX100 pH/ORP Loop Powered 4-20mA Transmitter
From Sensorex

Sensorex - TX100 pH/ORP Loop Powered 4-20mA Transmitter

Our TX100 is a fully-featured pH/ORP transmitter for use with pH and ORP sensors. The large display shows pH/ORP value simultaneously with temperature. Versatile mounting options for wall, panel, DIN rail or pipe mount.

  • Reliable pH/ORP monitoring

  • Simple sensor calibration

  • Automatic sensor maintenance alerts

  • Compatible with a wide variety of Sensorex pH/ORP sensors

  • One year limited warranty

Note: Transmitter is only compatible with sensors with tinned leads.


  • Measurement Range (pH): 0.00 to 14.00pH, 0.01 pH resolution, +/- 0.01 accuracy

  • Measurement Range (ORP/mV): -1999mV to 1999mV, 1mV resolution, +/- 2mV accuracy

  • Temperature Range: -20 °C to 110 °C , 0.1 °C resolution, 0.2 °C accuracy

  • Current Output Range: 2.00mA to 24mA, 0.01mA resolution, +/-0.005mA accuracy, 500V input/output isolationEnclosure:

  • NEMA 4X IP65, ABS case with push-button control pad; HWD: 3.9” (99.1 mm) x 3.9” (99.1 mm) x 2.9” (74.7mm)

  • Mounting Options: Panel, wall, DIN rail, or pipe mounting

  • Ambient Operating Temperature: 0° C to 60° C

  • Storage Temperature: 10° C to 70° C

  • Ambient Humidity: 0 to 95%, non-condensing

  • Location: Designed for non-hazardous environments

  • Maximum Sensor to Transmitter Distance: 30 feet (9.1 meters)

  • Conduit Openings: 2 each 3/8? NPT openings (cord grips included)

  • Temperature Input: 2-wire Pt1000 RTD with automatic compensation

  • Power Requirement: 12-24 VDC, max 600Ohm load

  • Warranty: One year limited warranty

  • Weight: Approx. 1lb (0.45kg)

Specification Sheet for TX100 pH/ORP Transmitter

Instruction Sheet for TX100 pH/ORP Loop Powered 4-20mA Transmitter


More pH and ORP Transmitters/Controllers

TX10 | TX20 | TX100 | TX2000 | TX3000


About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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