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Small Economical Transmitters - Discontinued


 | TX66A

See All Models Below

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2 year warranty
  • Small, Economical
  • 2-Wire, 4 to 20 mA output
  • Thermocouple, RTD, and mV Inputs
  • Automatic Cold Junction Compensation
  • Automatic Self-Calibration


The TX66A Series has been discontinued. Please see the TX91A and TX92A Series as a possible alternative or contact our Temperature Engineering Department.

The TX66 "smart" transmitter offers isolation, linearization, automatic temperature compensation, automatic self-calibration, and easy-to-use menus. These compact units accept a large number of inputs. The optional 1-line display will fit within the same footprint as the transmitter. The 2-line plug-in display is slightly larger, with two push buttons and LCD glass. Both displays are easily field mounted. At least one display is required to set up the transmitter.

Linearization: ±0.05°C
    Analog: 2-wire
    Digital: 4 to 20 mA
Minimum Output Range: None
Output Rezolution:
    Analog: 3.5 µA
    Digital: 4 significant digits
    Digital: ±0.03% of the mV or equivalent reading or the accuracy from the table below, whichever is greater
    Analog: Digital accuracy plus ±4 µA, typical, ±8 µA max
Repeatability: One half of accuracy
Failsafe: User-programmable for high, low, or off
Operating Temp Range:
    Transmitter: -40 to 85°C (-40 to 185°F)
    Display: -20 to 70°C (-4 to 158°F) 0 to 100% RH (non-condensing)
Isolation: 500 Vdc or Vac p-p; operating input-output voltage: 250 Vac p-p or ±250 Vdc
Power and Load: 12 to 48 Vdc; VSUPPLY (MIN) = 12 + (RLOAD in kΩ) x 23 mA
Common-Mode Rejection: 120 dB
Reverse Polarity Protection: 42 Vdc applied with either polarity
Dimensions: 41 mm H x 61 Dia. (1.6 x 2.4")
Weight: 227 g (8 oz)
Place Order(Specify Model Number)
Part Number/ Desc.
TX67A Star
Consult Sales  
Intrinsically safe transmitter (Intrinsic safety barrier required)
TX66-DIN Star
Consult Sales  
TX60-2A Star
Consult Sales  
Two-line, plug-in display for TX66A model only
All amounts shown in USD
Note: Comes with complete operator’s manual
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