HART Modem

In the instruments industry, the traditional 4-20 mA analog transmitters are upgrading to the fieldbus with digital communication. HART fieldbus communication has digital communication capability with compatible analog signal. HART MODEM is a necessary and convenient tool for the analog products upgrading and signal exchanging in the control plant. We provide two kinds of HART modem. HART-RS232 is the converter for HART signal to RS-232 signal. HART-USB is the converter for HART signal to PC virtual series port.

Product characteristic:

According to the HART physical layer specification

Isolated transformer prevents the influence of earthing.

Voltage signal modulator/demodulator

Low power consumption designation

Powered by series port or USB port

Interface Type: dB9 female mount

Ambient Temperature: 0 ~ 50 ° C

Compressive Strength: 500 V AC HART bus and serial port (UART, USB)

Receiving Impedance: ≧ 5 K Ω, end-to-end

Output Signal VPP: 600 mV ≧ VPP ≧ 400 mV, 500 Ω load resistance

Receiving Sensitivity: 120 mV, 500 Ω test resistance

HART-RS232 is the protocol converter between HART device and configurator on PC.