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
LMK457 Marine Approved Level Transmitter - Marine approved level transmitter with 4-20mA current loop output for shipbuilding with optional all CuNiFe construction for sea-water compatibility in ranges from 0.4 mH2O to 250mH2O gauge.
LMK458 Marine Approved Hydrostatic Level Transmitter - Marine approved level transmitter with 4-20mA output for measuring level of contents inside ship ballast, fuel, liquid cargo or wastewater tanks
Glossary of Pressure Sensor technical terms
- Ceramic Pressure Sensors
- Digital Compensation
- Dry Cell
- Dry/Dry
- Isolation Diaphragm
- LVDT – Linear Variable Differential Transformer
- Pressure Sensors
- SOI – Silicon on Insulator
- Stainless Steel Pressure Sensors
- Static Line Pressure
- Wet/Dry
- Wet/Wet
Help from Pressure Sensor resources
- Transforming a 2 wire Current Loop into a Voltage Output Signal
- Measuring vacuum as a negative gauge pressure using a dp sensor
- How do you measure flow rate with a dp cell
- How do you choose the correct pressure range for a pressure sensor
- Pressure Sensor Accuracy Specifications
- Supply voltage and load resistance considerations for pressure transmitters
- 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 liquid level in a tank using a dp sensor
- Measuring density of a liquid using a dp sensor
- Pressure Sensor Technology Comparative Guide
