PR-20 Pneumatic Pressure Indicator
The Roctest PR-20 is a portable pneumatic pressure indicator used to read pneumatic piezometers and pressure transducers. It is housed in a strong watertight case that contains all the circuitry for reading the transducers and for refilling its self-contained nitrogen-gas cylinder.
- Range
- 200-10,000 kPa
- Accuracy
- ±0.25% F.S.
- Operating temperature
- -20 to +60°C
Overview
In detail
How it works
The unit reads pneumatic piezometer transducers using an internal nitrogen-gas supply and displays the result on a 105 mm diameter test gauge fitted with an anti-parallax mirror. An automatic constant low-flow control valve gives precise, repeatable readings on ranges below 0-1000 kPa. The digital variant, the PR-20D, uses a high-precision digital test gauge in place of the analogue dial but shares the same physical specifications and pressure capability.
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Specifications
Technical specifications
- Range
- 200-10,000 kPa
- Accuracy
- ±0.25% F.S.
- Operating temperature
- -20 to +60°C
- Dimensions
- 450 x 300 x 180 mm
- Weight
- 9 kg
- Gauge
- 105 mm diameter test gauge with anti-parallax mirror
Related
Often specified alongside
Geosystems
Vibrating Wire Piezometer - VWP
- Range
- 0.0352, 0.0702, 0.2, 0.35, 0.5, 0.75, 1, 1.5, 2, 3, 5, 7 MPa
- Accuracy
- ±0.1%
- Linearity
- < ±0.5% F.S.
Geosystems
Standpipe Piezometer CP1, CP15
- Type
- Porous plastic filter (CP1: perforated rigid PVC body; CP15: crush-resistant)
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