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
Recordable indicator and sensor up to 30000 psi for pressure test rig - Accurate and reliable pressure measurement up to 30,000 psi with integrated data recording. Ideal for demanding pressure test rig applications.
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
250 bar pressure transducer with 20 millivolt full scale output - Four wire strain gauge type pressure transducer with a twenty millivolt full scale output with a steady 10 volt supply input.
Event triggered high sampling rate pressure logger - This pressure logger can record for months at time at a slow logging rate, and when a predefined event threshold is exceeded it will record pressure at a much faster rate.
Absolute Reference Pressure Range
Referenced to absolute zero pressure or a perfect vacuum
- a
- A
- abs
- ABS
Featured absolute reference related products
Baroli 02 Precision Digital Pressure Gauge - Precision digital pressure gauge with ranges from 100 mbar (1.5 psi) up to 600 bar (9000 psi) for measuring to an accuracy of 0.125% FS BSL.
Absolute Pressure Sensors - Absolute pressure sensors are essential tools for engineers and scientists who need to measure pressures relative to a perfect vacuum.
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
Monitoring vacuum depression in food powder drying towers with a low range dp transmitter - DP transmitter for precise vacuum measurement and control for coconut powder drying towers to ensure consistent product quality.
20 pascal differential pressure transducer for clean rooms - Voltage output pressure transducer with 0-20 Pa range for cleanroom applications. Provides reliable pressure monitoring to prevent contamination in critical environments.
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.
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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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