JTR-8012 Intelligent Rail Temperature Transmitter

Manufacturer :
Jinzhou Jingwei Instruments Co., Ltd.
Warehouse entry time :
2024-11-25
Country :
China
Product description :

Input type: 2/3/4-wire PT100 and tungsten-rhenium/B/R/S/N/K/J/T/E thermocouples

Output mode: 0~10V (adjustable). RS485 (optional)

Output resolution: 1mv

Data update cycle: 0.5 seconds

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Product description

Product Specifications

Input type: 2/3/4-wire PT100 and tungsten-rhenium/B/R/S/N/K/J/T/E thermocouples

Output mode: 0~10V (adjustable). RS485 (optional)

Output resolution: 1mv

Data update cycle: 0.5 seconds

Thermocouple cold end compensation accuracy (AT25℃): (maximum) ±0.1℃

Operating environment: -30~70℃ 0~95% relative humidity

Special function: Can be matched with the sensor to achieve ultra-high precision measurement. When thermocouple input, an external temperature compensation element can be connected to achieve instant compensation. Sensor open circuit indicator alarm.

Electrical isolation: power-input-output/RS485

Isolated from each other, isolation voltage 600V

Power supply: 18~36VDC (other ranges can be customized)

Accuracy (AT25 ℃ & AT0.5 maximum sampling rate):

Enter model number	Range (℃)	A/D conversion accuracy	D/A conversion accuracy	Impact of environment change of 1 ℃ (temperature drift)
PT100	-200~500	± 0.05 ℃	±0.05% of range	0.003 ℃
B-Type thermocouple	300~1820	± 1.40 ℃	±0.05% of range	0.030 ℃
S-type thermocouple	0 ~ 1768	± 0.65 ℃	±0.05% of range	0.025 ℃
N-type thermocouple	-200~1300	± 0.35 ℃	±0.05% of range	0.019 ℃
K-type thermocouple	-180~1372	± 0.25 ℃	±0.05% of range	0.018 ℃
J-type thermocouple	-180~760	± 0.20 ℃	±0.05% of range	0.006 ℃
T-Type thermocouple	-200~400	± 0.20 ℃	±0.05% of range	0.009 ℃
E-type thermocouple	-50 ~ 1000	± 0.17 ℃	±0.05% of range	0.006 ℃
Digital/analog conversion				0.002% Span

Note 1: The digital/analog conversion accuracy and its temperature drift given in the table are for the output range of 0~10v.

Other range calculation methods: digital/analog conversion accuracy = 0.05*10/range; Digital/analog conversion temperature drift = 0.002*10/range.

For example, 1~5V output: digital/analog conversion accuracy = 0.05*10/(5-1)= 0.125%

Note 2: Total digital accuracy of thermocouple measurement: analog/digital conversion accuracy +0.1 ℃ (cold end compensation accuracy)

Overall accuracy after using sensor matching function (transmitter + sensor)

Enter model number	Range (℃)	A/D conversion accuracy (℃)
PT100	-50 ~ 200	± 0.05
S-type thermocouple	0 ~ 650	± 0.70
S-type thermocouple	650~1100	± 1.50
N-type thermocouple	0 ~ 650	± 0.40
N-type thermocouple	650~1100	± 1.90
T-Type thermocouple	-200 ~ -70	± 0.40
T-Type thermocouple	-70 ~ 400	± 0.20

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.