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Murphy Temperature Scanner/Pyrometer TDXM-DC

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Murphy 24-Channel Temperature Scanner/Pyrometer 10-32 VDC - TDXM-DC

Product Condition: NEW
Murphy 24-Channel Temperature Scanner/Pyrometer TDXM-DC
Estimated ship date: for orders by 3pm PT/6pm ET today Available for back order.

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The Murphy 24-Channel Temperature Scanner/Pyrometer TDXM-DC gives you a unique configurable temperature scanner/pyrometer with a built-in power supply. A new design features a 7-character, 7-segment Liquid Crystal Display window with 1/2 inch (13 mm), easy-to-read characters. Also located on the faceplate are membrane keys for easy configuring. Highly reliable and versatile, the TDXM accepts up to 24 type “J” or “K” grounded or ungrounded thermocouples. Each channel has three (3) adjustable setpoints SP1, SP2 and SP3. The SP1, SP2 and SP3 Setpoints correspond to the SP1, SP2 and SP3 outputs. Additionally it has the selectable feature to monitor and alarm or shutdown on deviation from an average for up to two groups of temperatures (GRP/DEV; deviation from average). One group could be exhaust temperatures and another group could be bearing temperatures.

The TDXM is capable of communicating with controllers, PLC’s, computers or SCADA (Supervisory Control & Data Acquisition) systems by a built-in RS485 serial communications port. The TDXM-DC is available for 10 - 32 VDC systems.



  • User Interface (Faceplate)
  • Control Options
  • Setpoint History
  • Scans Up To 24 Channels
  • Three (3) Adjustable Trip Points Per Channel
  • Accepts Any Combination of “J” or “K” Type Grounded or Ungrounded Thermocouples
  • 2 Separate Groups with Deviation Trip Functions Selectable
  • Powered By 10 to 32 VDC Systems
  • RS485 Serial Communications Port
  • Uses MConfig Configuration and Monitoring Software
  • CSA Certified for Use in Class I, Division 2, Groups “B, C & D” Hazardous Locations



  • Part No.: TDXM-DC
  • Power Input (Operating Voltages): 10- 32VDC, 750 mW max
  • Sensor Inputs: Up to 24 type “J” or “K” grounded or ungrounded thermocouples
  • Outputs: Two (2) Outputs 0.5 A, 350 VDC, FET-sink to ground to trip. One (1) Form “C” Solid State Relay Output 0.125 A, 350 VDC/240 VAC
  • Operating, Storage, and Display Temperature: -40 to 85°C (-40 to 185F)
  • Sensor Scan Rate: Scans all channels in 2 seconds
  • Range: Type K: 0 - 1999°F (0 - 1093°C); Type J: 0 - 1538°F (0 - 837°C)
  • Display Type: Custom 7-segment, 7-character, backlit type with temperature units indication and setpoint trip indication
  • Accuracy: Cold junction: Better than ±0.5°C (1.0°F). Type “J” or “K”: ±1°C (2°F); 38 - 1093°C (100 - 1999°F)
  • Cold Junction Compensation: -40 to 85°C (-40 to 185F)
  • Open Thermocouple Detection: Drives channel reading high
  • Shipping Weight: 3 lb. (1.36 kg) approximately
  • Shipping Dimensions: 5-1/2 x 9 x 9-1/2 in. (140 x 229 x 241 mm) approximately


NOTE: The form “C” relay output is de-energized for a trip condition. The NC terminal is closed and the NO terminal is open for trip.

Additional Information

Product Condition NEW
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