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BT-2A temperature transmitter

BT-2A temperature transmitter

Overview

  BT-2A temperature transmitter is a two-wire intelligent temperature transmitter module that can be configured by PC . It can receive the signal input of PT100 thermal resistance, the range can be set, and can linearize the output and temperature of PT100 . Corresponding 4~20mA current signal. This module is generally installed in the head junction box of the transmitter. The transmitter is compact in design, the circuit is designed with low power consumption, and all components with low temperature drift are used to reduce the influence of the heating of the circuit and the ambient temperature on the transmitter. The strengthened anti-interference design enables it to work stably in the industrial-grade environment at -40~80 ℃ for a long time .

Features

◆ two-wire smart . 4 ~ 20mA work , better anti-jamming capability , signal lossless remote.

◆Provide sensor constant current excitation, standard three-wire PT100 access mode.

◆ exclusive custom ASSIC circuit , more integrated , better reliability .

◆Fully digital calibration, no movable potentiometer, temperature drift as low as <20ppm .

◆Strengthen EMC anti-jamming design and hardware watchdog, suitable for various industrial environments with harsh electromagnetic environment.

◆Pure digital PT100 calibration calculation with higher accuracy.

◆Intelligent USB calibration interface, connection order, professional calibration configuration software, calibration is convenient and quick.

◆Professional transmitter calibration software. The software has a user version and a factory version. The user version cannot modify the calibration parameters.

◆The transmitter has a built-in ITS-90 international temperature standard conversion algorithm, so the temperature transmitter has no non-linear error of the traditional temperature change.

Technical indicators and parameters

voltage

10~36VDC, 24VDC is recommended .

Measuring range

-200 ℃ ~850 ℃, the minimum transmission range of 50 ℃. Can be configured by PC .

PC   interface

USB

output signal

Two-wire system 4-20mA, current resolution is about 1.6uA .

Limit current

About 23Ma.

Temperature drift coefficient

<20ppm/ ℃ or 0.004%FS/1 ℃ (basic range)

working environment

Temperature -40 ℃ ~85 ℃, humidity <85%, dry and non-corrosive environment.

Dimensions

The diameter is 44mm*22.5mm cylindrical.

measurement accuracy

0.1%FS

Shape and wiring

◎Dimensions

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