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
KL1 Cable Junction Box for Submersible Level Transmitters - Robust cable junction box for terminating vented electrical cable from a submersible level transmitter. vented to the outside air pressure.
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.
Water system peak demand pressure and flow data logger - Identify peak demand and low-pressure events in your water system with the P-Triton-PF data logger. User-configurable logging regimes, 5-year battery life, and IrDA wireless communication.
Absolute Reference Pressure Range
Referenced to absolute zero pressure or a perfect vacuum
- a
- A
- abs
- ABS
Featured absolute reference related products
DS201P High Range Flush Pressure Gauge, Switch and Sensor - High pressure sensor, electronic switch and digital gauge with an all welded stainless steel flush diaphragm for high viscosity liquids.
Near-atmospheric pressure transmitter for hazardous gas test chambers - Intrinsically safe pressure transmitter configured for a narrow, sub-atmospheric range to safely monitor dangerous gases in a test chamber.
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
Pitot tube air flow calculation 1000 hPa differential pressure transmitter - Air flow differential pressure transmitter for measuring difference between pitot tube and static port pressure up to 1000 hectopascals.- 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.
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
- Measuring vacuum with negative gauge or absolute ranges
- What is the difference between gauge and absolute pressure measurement
- What is the difference between sealed gauge and vented gauge reference?
- Can you measure vacuum using a gauge pressure range
- Measuring negative pressure using a positive differential pressure range
- Can you have a minus 20 psi gauge vacuum measurement range
- Not reading zero when pressure is vented to atmosphere
- What does negative and positive gauge pressure mean
- How do you choose the correct pressure range for a pressure sensor
- Simulating 8000 foot altitude with a pressure gauge
- Using an Absolute Sensor to Measure Gauge Reference Pressure
- Converting non-vented depth readings & barometric pressure to true depth
- Using Sealed Gauge Reference Pressure Sensing Devices
- Output signal orientation for a negative gauge pressure range
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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