Input: 2/3/4-wire PT100, tungsten-rhenium/B/S/N/K/J/T/E thermocouple, 4~20mA, 0~10V, 2~10V, 0~5V, 1~5V.
Output: 6-digit LED display, 4~20mA current range can be set arbitrarily, 0~10V voltage range can be set arbitrarily, relay switch quantity, RS485
Data update rate: thermocouple -1.2s PT100 -1s 4~20mA/0~10V-0.5s
Thermocouple cold end compensation accuracy (AT25℃): (maximum) ±0.05℃
Operating environment: -10~60℃ 0~90% relative humidity without condensation
Special function: Can be matched with the sensor to achieve ultra-high precision measurement. When thermocouple input, four-wire PT100 can be connected externally
Power supply: 220VAC/24VDC
Accuracy (AT25℃ Max):
Enter model number
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Range (℃)
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Measurement accuracy
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Impact of environment change of 1 ℃ (temperature drift)
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4-wire system PT100
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-200 ~ 500
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±0.02 ℃
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0.003 ℃
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3-wire system PT100
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-200 ~ 500
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±0.05 ℃
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0.003 ℃
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2-wire system PT100
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-200 ~ 500
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±0.05 ℃
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0.003 ℃
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B-Type thermocouple
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300 ~ 1820
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±1.20 ℃
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0.036 ℃
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S-type thermocouple
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0 ~ 1768
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±0.60 ℃
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0.029 ℃
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N-type thermocouple
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-200 ~ 1300
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±0.32 ℃
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0.025 ℃
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K-type thermocouple
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-180 ~ 1372
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±0.22 ℃
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0.024 ℃
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J-type thermocouple
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-180 ~ 760
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±0.18 ℃
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0.008 ℃
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T-Type thermocouple
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-200 ~ 400
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±0.18 ℃
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0.011 ℃
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E-type thermocouple
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-50 ~ 1000
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±0.15 ℃
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0.007 ℃
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Note 1: Total digital accuracy of thermocouple measurement: analog/digital conversion accuracy +0.05℃ (cold end compensation accuracy)
Overall accuracy after using sensor matching function (transmitter + sensor)
Enter model number
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Range (℃)
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A/D conversion accuracy (℃)
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PT100
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-50 ~ 200
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± 0.02
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S-type thermocouple
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0 ~ 650
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± 0.70
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650 ~ 1100
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± 1.50
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N-type thermocouple
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0 ~ 650
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± 0.40
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650 ~ 1100
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± 1.90
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T-Type thermocouple
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-200 ~ -70
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± 0.40
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-70 ~ 400
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± 0.20
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Note 1: The sensors listed in the table are the most commonly used, stable and representative sensors in each temperature range. For details of accuracy in a wider temperature range, please consult the manufacturer.
Note 2: The thermocouple matching function is a patented technology and must be completed before leaving the factory.
Note 3: The accuracy of thermocouples in the table includes the accuracy of cold junction compensation and does not need to be superimposed separately.