HART (Highway Addressable Remote Transducer) is an open communication protocol for high-speed addressable remote sensors. It is a communication protocol used between on-site smart instruments and control room equipment. It uses FSK frequency shift keying signals based on the Bell202 standard. The low-frequency 4~20mA analog signal is superimposed on the audio digital signal with an amplitude of 0.5mA for two-way digital communication, with a data transmission rate of 1.2Mbps. Based on the 4~20mA main variable information, other instrument measurements, process parameters, equipment configuration, calibration and diagnostic information, etc. can be transmitted, and the instrument equipment management system AMS can be implemented
UWNTEK 16-Channel HART Analog Input Module Features:
Intelligent conditioning, supports 16 channels of HART analog 4-20mA input, with high precision in the full range;
Online self-correction, automatic compensation of ambient temperature, no adjustment, no maintenance, automatic identification of disconnection;
There is complete electrical isolation between the module and the system; the PhotoMos switch switches the scanning channel, and there is complete electrical isolation between channels to keep out external interference;
HART equipment directly realizes the remote control and management function of on-site HART equipment through the UWnTek control engineering application software platform;
Equipped with a combined industrial terminal block group, the cage, cage bottom plate, terminal board and their connecting cables are eliminated to facilitate user use and maintenance;
Built-in input voting algorithm, input self-test and fault reporting mechanism, multiple redundant combinations of single and dual redundancy can be used, and redundancy solutions can be configured on a module basis.
Technical Parameters:
| Parameter name | Technical indicators |
| Channel configuration | 16 |
| Analog input | Current: 4～20mA |
| Analog sampling | ±0.1%F.S. |
| Common mode rejection | ≥120dB |
| Serial mode interference | ≥60dB |
| Isolation impedance | ≥20MΩ@500V |
| Anti-interference |
EN61000-4-2(ESD), Level 3 EN61000-4-3(RS),Level 3 EN61000-4-4(EFT),Level 3 EN61000-4-5(Surge),Level 3 EN61000-4-6(CS), Level 3 |
| Module size |
266mm×81mm×157mm 266mm×146mm×157mm |
| Power consumption | 1.5W |
| Operating temperature | -20℃ ~ 60℃ |
| Matching terminal block |
UW6274 analog input terminal block UW6275 dual redundant analog input matching terminal block |
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