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PR-20 Pneumatic Pressure Indicator

HIGH ACCURACY READINGS

RANGES UP TO 10000 KPA

EASY TO USE

The PR-20 is a pneumatic pressure indicators designed to read pneumatic piezometers

Description

The PR-20 portable readouts are mounted in a strong watertight case that contains all the circuitry for reading the transducers, and for refilling the self-contained nitrogen-gas cylinder.

The circuitry consists of the following:

  • A nitrogen-gas filled cylinder with a maximum pressure of 14 000 kPa. The cylinder pressure is indicated by a pressure gauge
  • A pressure regulator, with the maximum regulated pressure adjusted in the factory to equal the upper limit of the main readout pressure gauge
  • An automatic constant low-flow control valve that gives precise and highly repeatable results (available only below the 0–1000 kPa measurement range)
  • Either a 105 mm diameter test gauge (model PR-20) featuring an anti-parallax mirror, or a high-precision digital test gauge (model PR-20D)
  • A high-flow circuit, for the quick filling of the transducer tubing leads

Reading and Interpretation:

The same circuitry is used in both readout units. The only difference is in the test gauge: the PR-20 has a dial gauge while the PR-20D has a digital gauge. Readings are taken once the transducer tubings are filled with gas and the pressure has stabilized.

Specifications

MODEL

PR-20

PR-20D

Range

From 200 to 10 000 kPa

From 200 to 10 000 kPa

Accuracy

±0.25% F.S.

±0.05% to ±0.25% F.S.

Resolution

Gauge-dependent

Gauge-dependent

Maximum pressure

1 × F.S.

1.5 × F.S.

Operating temperature

−20 to +60°C

Gauge-dependent

Dimensions

45 × 30 × 18 cm

45 × 30 × 18 cm

Weight

9 kg

9 kg

Ordering Info

Please specify:

  • Model
  • Range
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