Industrial Gateway


  • 1 analog current output (HART signal filter) channel
  • 1 by pass HART signal channel
  • Support HART Burst mode
  • Support point-to-point HART mode
  • Allow two HART masters
  • Support Loop Power function (module provides +30V)
  • 4KV ESD Protection
  • 250Ω load resistor


HRT-370 is a HART signal filter specially designed to solve the issue that analog signal gets interfered while additional HART signal adding to communication process. When connecting HRT-370 to a HART instrument, it splits the input HART signal to two output channels, one keeps the original HART signal and another filter the HART signal out to output pure analog signal. Therefore, users can make both HART and analog current data collection and processing easier and more precise by applying HRT-370.



 LED Indicators
 Status PWR: Module power status
HART: HART connection status
AO: AO connection status


 Analog Output
 Zero Drift ± 0.1% FSR @25 °C
± 0.5% FSR @-30/+80°C
 Span Drift ± 0.1% FSR @25 °C
± 0.5% FSR @-30/+80°C
 Response Time 40ms @ 250 Ω
 Voltage Output Capability External +30V @ 800Ω (Sink)
 Isolation 2500VDC


 Device 2-wired or 4-wired HART devices (Point to Point)
 Isolation 2500 VDC
 Input Impedance 250Ω±5% (2W)
 Loop Power Yes (module provides +30V output)
 Auxiliary Supply 24V @ 20mA


 Reverse Polarity Protection Power reverse polarity protection, Over-voltage brown-out protection
 Input Range Unregulated +10 ~ +30 VDC
 Consumption Maximum: (20mA) => 0.05mA @ 30VDC, 1.5W


 Dimensions (mm) 25 x 116 x 120
 Installation DIN-Rail


 Operating Temperature -25 ~ +75 °C (-13 to 167 ℉)
 Storage Temperature -30 ~ +80 °C (-22 to 176 ℉)
 Humidity 5% ~ 95% RH, Non-condensing



 HRT-370     CR  HART Signal Filter (RoHS) 1