product overview

HF_THMA_08C Eight channel thermocouple module

 HF_THMA_08C is a high-performance thermocouple temperature acquisition module designed specifically for temperature monitoring in industrial sites. This module adopts advanced 32-bit ARM processors and 24 bit high-precision ADC acquisition chips to ensure the accuracy and stability of temperature data. At the same time, the built-in cold junction compensation temperature sensor effectively eliminates the impact of thermocouple cold junction temperature changes on measurement accuracy. Through Modbus network, HF_THMA_08C can easily achieve data communication with PLCs, computers and other hosts, meeting the needs of distributed temperature acquisition。

FEATURES

1. High precision acquisition: Using a 24 bit ADC acquisition chip to ensure the accuracy of temperature data acquisition.

2. Cold end compensation: Built in high-precision cold end compensation temperature sensor, automatically performs cold end temperature compensation to improve measurement accuracy.

3. Powerful processing capability: 32-bit ARM processors provide powerful data processing capabilities to ensure stable module operation.

4. Distributed acquisition: Through Modbus network, multiple HF_THMA_08C modules can achieve distributed acquisition, which facilitates the construction of large-scale temperature monitoring systems.

5. Multiple thermocouple supports: By setting internal registers, 7 types of thermocouples, including K, T, E, R, J, S, and B, can be inputted to meet various temperature measurement needs.

Application scenarios

Industrial automation: high-precision temperature monitoring of equipment, materials, etc. in industrial environments such as production lines and workshops to ensure the stability and safety of the production process.
Environmental monitoring: Real time monitoring of environmental temperature in meteorological stations, laboratories, and other places, providing accurate data support for scientific research, environmental monitoring, etc.
Power system: In power systems such as substations and power plants, temperature monitoring is carried out on key equipment to prevent equipment failures caused by high temperatures.
In the metallurgical industry, real-time monitoring of furnace temperature, molten steel temperature, etc. is carried out to ensure the smooth progress of the metallurgical process。

    Other industries, such as remote data collection, process monitoring, industrial process control, energy management, monitoring, security systems, laboratory automation, building automation, etc.

Related parameters

measuring range

Mechanical dimensions

 Mechanical dimensions 1

Mechanical dimensions 2

Mechanical dimensions 3

Mechanical dimensions 4

Module Installation

 Interface Description

Register address

simple test

PC testing software

      The software supports 8 devices and 64 data acquisition channels. The default baud rate of the thermocouple acquisition module is 9600, and the default device address is 1. When connecting, the baud rate of the device must be consistent with that of the upper computer.

The software supports 8 devices and 64 data acquisition channels.

wavform Each waveform display can be switched on and off.

offset   Can adjust the temperature value。

single  It is possible to read the temperature value at once.

Start  Regularly read temperature values。

Interval  Timed reading interval, in seconds。

Connect  Connect serial port

Read  Read the type of thermocouple, set the device address and baud rate correctly

Write  Set device address, thermocouple type, and baud rate. The current baud rate should be consistent with the device baud rate. After modification, reconnect with the new baud rate.