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HART®

HART® or Highway Addressable Remote Transducer is a type of digital communications protocol for configuring and reading instrumentation via the 4 to 20mA current loop. HART® data is communicated via a low level AC digital signal which is superimposed on a 2 wire 4-20mA current loop signal and functions simultaneously without interfering with the measurement output signal.

Featured hart® communications enabled measurement products

  • Fuel and freshwater level sensor with adjustable hydrostatic range for small vessel tanks
  • DPT200 Pressurised Tank Level Differential Pressure Transmitter
  • Biogas ATEX 4-20mA pressure transmitter for low pressure anaerobic digestion monitoring
  • LMK458 Marine Approved Hydrostatic Level Transmitter

Related Technical Terms

  • Ceramic Pressure Sensors
  • Digital Compensation
  • Dry Cell
  • Dry/Dry
  • Isolation Diaphragm
  • LVDT – Linear Variable Differential Transformer
  • Pressure Sensors
  • Pressure Transducers
  • Pressure Transmitters
  • SOI – Silicon on Insulator
  • Stainless Steel Pressure Sensors
  • Static Line Pressure
  • Wet/Dry
  • Wet/Wet

Related Product and Application Guides

  • Differential Pressure Sensors
  • Pressure Transmitters
  • TPSADA Digital Auto-Zero High Pressure Sensor Voltage Output Pressure Transducers
  • Millivolt Output Pressure Transducers

Related Help Guides

  • How to get a 10 volt signal from a 4-20mA output pressure sensor
  • Determining the hydrostatic pressure range for a tank level sensor
  • Symptons and Causes of Damage to Pressure Transducer Diaphragms
  • How to Connect a 4-20mA Current Loop Pressure Transmitter
  • What is difference between working, burst and over pressure
  • Measuring vacuum as a negative gauge pressure using a dp sensor

Related Online Tools

  • Pressure Sensor Calculator
  • DP Flow Transmitter Output Calculator

Related Product Types

  • Silicon Pressure Sensors
  • 0-10 Volts Output Pressure Transducers
  • Underwater Pressure Sensors
  • Chemical Resistant Hydrostatic Liquid Level & Pressure Sensors

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Pressure Sensor Specifier

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Pressure Sensor Calculator

Calculate errors and readings for a pressure sensor
Enter your parameters into this pressure sensor calculator to determine calibration errors, expected readings, and error tolerances

Pressure Sensor Technology Guide

Rating table for performance of different pressure sensor technology types

Compare performance of the most popular pressure sensor technology types and how they rate for different application requirements

Measurement Instrument Specifier

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Wireless 4-20mA Signal Measurement

Use this battery powered wireless 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

Use this battery powered 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

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