TEMPCO Electric Heater Corporation
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2-Wire Miniature Universal Temperature/Process Transmitters

Input and Output Connection Drawings | Specifications | How to Order

Temperature transmitters are used for a variety of reasons. The use of temperature transmitters can eliminate the need for long costly runs of thermocouple wire, vs. less expensive copper signal wire. When the environment is electrically noisy, sending a 4-20 mA signal to the control panel reduces the chance of error.
The Tempco ETM Series of 2-wire transmitters offers both isolated and non-isolated versions. They are designed to fit in a standard aluminum or iron industrial connection head.
 
Programmable in the field with your PC
and easy-to-use software!!!



Available From Stock!		  Design Features
  • Accepts T/C and 2- or 3-wire RTD sensors
  • Field programmable with easy to use MS Windows®-based configuration software and a PC
  • Consistent sensor break function
  • Full access to all features while in operation
  • Temperature linear output
  • NAMUR-compliant
  • Configuration, editing & reading without external power
  • Easy wiring with a large center hole

 Additional Design Features for Isolated Version:
  • Fully universal, linearized and isolated 3/4 wire RTD, T/C, mV and Ohm
  • Sensor and system error correction
  • Low sensor isolation detection
  • Simplified loop check up with calibration output
The ETM Transmitters are built using surface mount components and employ digital technology with non-volatile memory to retain the configuration  after programming and the cable is removed. 
Input Connections - Common to both miniature & panel mount Miniature Transmitter Output Connections
Pt100 2 or 3 wire Thermocouple

Additional inputs for the Isolated Version
Pt100 4 wire Thermocouple / mV Potentiometer 3-wire
Specifications

Non-Isolated Isolated
Isolation: --- 1500 VAC
Input-RTD (PT100 or D100): 2 or 3 wire 3 or 4 wire
• TC: AE, B, E, J, K, L, N, R, S, T, U
• Potentiometer/resistance: --- 0 to 2000 Ω
• Voltage: --- -10 to 500 mVDC
Sensor current: ~ 0.4 mA
Max. sensor: RTD: 25 Ω per wire
Wire resistance: T/C: 500 Ω (total loop)
Sensor Failure: Updscale, Downscale or Off
Adjustments - Zero: Any value within range limits
Adjustments-Span: RTD: 18°F/10°C 18°F/10°C
T/C: 2 mV 2 mV
Resistance: --- 10 Ω
Cold Junction Compensation T/C: ±0.9°F / ±0.5°C
Supply Voltage: 8 to 36 Vdc 6.5 to 36 Vdc
Operating Temperature: -40° to  +185°F/-40° to +70°C
Humidity: 0 to 95% non-condensing
Typical Accuracy: ±0.2% of span ±0.1% of span
Common Miniature Temperature Transmitters
Part No. Isolation Input Range Unit
zero span
ETM20103 no K tc 0 200 °F
ETM20104 no J tc 0 200 °F
ETM20105 yes RTD 0 200 °F
ETM20106 no K tc 0 500 °F
ETM20107 no J tc 0 500 °F
ETM20108 yes RTD 0 400 °F
ETM20109 no K tc 0 200 °C
ETM20110 no J tc 0 200 °C
ETM20111 no K tc 0 400 °C
ETM20112 no J tc 0 400 °C

Un-Programmed Miniature Transmitters
ETM20001 For Non-Isolated version
ETM20002 For Isolated version

Programming Software
(Includes RS232 interface cable)
ETM90003 For Non-Isolated version
ETM90004 For Isolated version

Note: For RTD:
PT100=IEC751, α=0.00385,
D100=JIS1604, α=0.003916


How To Order
Create an ordering code by filling in the boxes with the appropriate number and/or letter designation for your requirements and a part number will be assigned, or choose a pre-assigned configuration.

Available From Stock!