PR-7200 Water Level Bubbler
The PR-7200 is a self-contained water level bubbler that combines a Teflon-lubricated piston air compressor with a PR-7100 liquid level sensor to form a fully self-contained hydrostatic pressure sensor. Designed and manufactured in Australia, it measures water level up to 70 m without the need for a gas bottle or regulator.
- Range
- 10, 20, 35 or 70 m freshwater (15, 30, 50, 100 psi)
- Output
- 4-20 mA analogue; SDI-12 digital; RS-232; simultaneous digital/analogue
- Ingress
- IP67
Overview
In detail
How it works
The PR-7200 combines an air compressor with a PR-7100 liquid level sensor to form a fully self-contained hydrostatic pressure (bubbler) sensor. A Teflon-lubricated precision piston air compressor purges the bubble tube whenever a reading is required, which also avoids silt build-up in the tube, and the pump is capable of measuring up to 70 m of water head - more than twice the range of traditional bubbler systems.
Features
The PR-7200 carries over the features of the previous 6100 and 6150 models, including volumetric calculations for tank-based applications, analogue and digital outputs, an integrated LCD for setup, and an optional 8-pin screw terminal connector. It is backed by a three-year warranty and is designed, manufactured and supported in Australia.
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Specifications
Technical specifications
- Range
- 10, 20, 35 or 70 m freshwater (15, 30, 50, 100 psi)
- Accuracy
- Digital: ±0.05% FS linearity, ±0.01% FS repeatability, <0.05% FS/yr drift; Analogue: ±0.15% (0-50°C)
- Output
- 4-20 mA analogue; SDI-12 digital; RS-232; simultaneous digital/analogue
- Ingress
- IP67
- Supply voltage
- 12 VDC
- Operating temperature
- -10°C to +60°C
- Resolution
- Analogue: 12-bit; Digital: 16-bit
- Response time
- 30 s default measurement sequence
- Weight
- 4.2 kg (device only); 5.3 kg (shipping)
Downloads
Documentation, openly available
Everything you need to specify, install and integrate the PR-7200 — no login, no paywall.
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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