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T71U-12 | Kele | Temperature Sensors & Transmitters

XMTR TYPE 71 100 OHM 385 -30 TO 45 DEGC




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product family specifications

Supply Voltage

10.5-45 VDC


0.1°F or 0.2% of span TCR 0.00385 Ω/Ω/°C

Signal Output

4-20 mA @ 675Ω, loop-powered

Sensor Element

100Ω platinum RTD



-30° to 210℉ (-34.4° to 98.9℃)

Minimum Span

40℉ (22℃)

Usable Range

-30° to 250℉ (-34.4° to 121.1℃)

Operating Temperature

0° to 140°F (-18° to 60°C)

Operating Humidity

0% to 95% non-condensing


1.8"W x 2.25"L x 1"H (4.6 x 5.7 x 2.5 cm)


0.16 lb (0.07 Kg) w/o options




1 year

product family features

  • DIP switch rangeable
  • Loop calibration test signal
  • Snap-track mounting
  • Loop-powered LED indication
  • Conformal coated

more information & related documents

Family Description

The Kele T71U Platinum RTD Rangeable Transmitter is a two-wire 4-20 mA transmitter designed for use with Type 71 100Ω platinum RTD sensors. The transmitter is available in three standard ranges, or it can be set for any range between 30° to 250°F (-34° to 121°C) with a minimum span of 40°F (22°C). To adjust the T71U, set the DIP switches to match the desired range and use the zero and span pots to fine tune. A high accuracy digital ohmmeter and decade box are required. The T71U has a special 20 mA loop calibration test signal to provide easy system verification. Simply move the bottle plug jumper from NORM to 20, and the transmitter will output a constant 20 mA. The Loop Up LED provides power indication for the 4-20 mA output.

Kele Description

XMTR TYPE 71 100 OHM 385 -30 TO 45 DEGC



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