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T81U Temperature Transmitter
Brand: KeleThe Kele T81U Platinum RTD range-able transmitter is a two-wire, 4-20 mA transmitter designed for use with type 81 100 ohms platinum RTD sensors.
The transmitter is available in three standard ranges, or it can be set for any range between -34° to 121° C (-30° to 250° F) with a minimum span of 22° C (40° F).
To adjust the T81U, 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 T81U 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.
Features- DIP switch range-able Loop calibration test signal Snap-track mounting Loop-powered LED indication Conformal coated
1 - 12 of 18 Part Numbers
T81UT81U-2
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - Transmitter Only
T81UT81U-2-AV
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - ST-AV81H Averaging Sensor
T81UT81U-2-D
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - ST-D81-XW Duct Sensor
T81UT81U-2-O
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - ST-O81 Outside Air Sensor
T81UT81U-2-W
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - ST-W81-XW Immersion Sensor with Well
T81UT81U-2-XWM
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -29° to 60° C (-20° to 140° F)
- Sensor Type - Single Gang Weather Resistant Box
T81UT81U-3
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - Transmitter Only
T81UT81U-3-AV
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - ST-AV81H Averaging Sensor
T81UT81U-3-D
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - ST-D81-XW Duct Sensor
T81UT81U-3-O
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - ST-O81 Outside Air Sensor
T81UT81U-3-W
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - ST-W81-XW Immersion Sensor with Well
T81UT81U-3-XWM
- Model - 4-20 mA RTD Transmitter
- Temperature Range - -18° to 38° C (0° to 100° F)
- Sensor Type - Single Gang Weather Resistant Box
1 - 12 of 18 Part Numbers
Specifications
Brand
Accuracy
- 0.00385 ohm/ohm/°C
- 0.06° C (0.1° F)
- 0.2 % of Span
Approvals & Certifications
- CE
Element
- 100 ohms Platinum - Sensor Element
Humidity
- Operating: 0 to 95 % Non-Condensing
Mounting
- Snap Track
Operating Temperature
- -18° to 60° C (0° to 140° F)
Output
- 4-20 mA, Loop Powered
Output Impedence
- Maximum
Sensor, Probe Connection
- 2-Wire
Sensor, Probe Type
- RTD
Supply Voltage
- 10.5-45 Vdc
Switch Type
- DIP Switches
Temperature Range
- -34.4° to 121.1° C (-30° to 250° F) - Usable Range & Rangeability
- -34.4° to 98.9° C (-30° to 210° F) - Rangeability Zero