There is a loose convention across manufacturers for designating the type of reference that a pressure sensing device has, which can be confusing if you are unfamiliar with specifying this often overlooked but critical specification parameter.
To help identify the reference of a particular pressure range found on a product label or technical data sheet a list of abbreviated suffixes is provided below.
Vented Gauge Reference Pressure Range
Measuring pressure with reference to atmospheric pressure, also referred to as Relative and Vented Gauge:
- g
- G
- rel
- REL
- vg
- VG
Featured vented gauge reference related products
Monitoring groundwater level in jet fuel contaminated wells using SDI-12 hydrostatic sensor - Monitor fluid levels in underground wells containing water and Jetfuel A1 mixtures using SDI-12 protocol hydrostatic level sensors- High-accuracy sea level monitoring for high-salinity marine environments - Robust hydrostatic solution for sea level monitoring in high-salinity environments using marine bronze and ceramic sensing technology r with high-frequency data sampling.
Sealed Gauge Reference Pressure Range
Not vented to atmospheric pressure, but instead the reference is fixed to 1 bar.
- sg
- SG
Featured sealed gauge reference related products
Logger for verifying water supply pressure over 7 days - The P-Triton-P is specifically designed for monitoring water supply pressures and storing readings for long term tests.
Custom pressure sensor for mining haul truck suspension hydraulics - Measuring high-pressure suspension hydraulics on heavy mining trucks with a custom-engineered pressure transducer which solved challenges of vibration, contamination, and a non-standard process connection.
Absolute Reference Pressure Range
Referenced to absolute zero pressure or a perfect vacuum
- a
- A
- abs
- ABS
Featured absolute reference related products
Industrial barometric indicator with Modbus RTU for safety shutdown circuits - This barometric pressure instrumentation package offers optimized 800 to 1200 mbar absolute scaling and 16-bit digital signal processing to provide reliable air density data for wind turbine generator operational limits and automated alarms.
IWPT Wireless Battery Powered Pressure Sensor and Receiver - Wireless battery powered pressure sensor and receiver system for connecting pressure sensors without wires to a central wireless receiver which converts each received pressure signal channel to a 1-5Vdc, 4-20mA output, USB, Ethernet TCP, RS232 RTU, RS485 RTU or 2G 3G 4G mobile cellular network.
Differential Pressure Range
The difference in pressure at point B compared to the pressure at point A.
- d
- D
- diff
- DIFF
- dp
- DP
Featured differential pressure related products
Low range ATEX approved 100 Pascal range DP transmitter - The DPT200 is a robust ATEX approved differential pressure transmitter which has a very low range of 100Pa.- Bi-directional room pressure sensing in explosive gas and dust atmospheres - Optimize facility safety in chemical and pharmaceutical plants by maintaining accurate pressure gradients between labs and hazardous production areas.
On product marking labels or any document that includes a description of the pressure range, the reference type is included after the pressure unit type e.g. 15 psi abs or 15 psia.
Related Help Guides
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Related Technical Terms
- Gauge Reference Pressure
- MSL – Mean Sea Level
- Negative Gauge Pressure
- Reference Pressure
- SG – Sealed Gauge
- Vented Cable
- Vented Gauge
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