PR-7100 Depth Sensor
The PR-7100 (formerly the LevelPro 6100) is a compact, easy-to-use bubbler-type water level sensor that connects to a regulated gas supply to enable remote water level monitoring without submerging electronics. It provides simultaneous analogue and digital outputs and, for tank applications, displays volumetric calculations based on user-specified tank dimensions.
- Range
- 10, 20, 35 or 70 m freshwater (15, 30, 50, 100 psi); custom ranges available
- Output
- 4-20 mA, 0-1V, 0-2.5V analogue; SDI-12, RS232C digital
- Ingress
- IP67, NEMA 6
Overview
In detail
How it works
The PR-7100 determines water level by measuring the back pressure of a gas bubbler system, keeping the electronics remote from the fluid for long-term reliability. It connects to a regulated gas supply so instrumentation does not sit in the water, avoiding exposure to damage from flood waters.
Features
The sensor provides simultaneous analogue and digital outputs and, for storage tank applications, displays volumetric calculations of liquid based on user-specified tank shapes and dimensions. A multi-line LCD allows easy setup, and recent revisions add a terminal-block wire connection and DIN rail mounting. The PR-7100 also forms the core sensor module of the PR-7200, which integrates an on-demand air pump to remove the need for gas bottles and regulators and extends monitoring to 70 m.
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Specifications
Technical specifications
- Range
- 10, 20, 35 or 70 m freshwater (15, 30, 50, 100 psi); custom ranges available
- Accuracy
- Digital: ±0.05% FS linearity, ±0.01% repeatability, <0.05% FS/yr drift; Analogue: ±0.15% (0-50°C)
- Output
- 4-20 mA, 0-1V, 0-2.5V analogue; SDI-12, RS232C digital
- Ingress
- IP67, NEMA 6
- Supply voltage
- 12 VDC unregulated
- Operating temperature
- -10°C to +60°C
- Resolution
- Analogue: 12-bit; Digital: 16-bit; display: 0.1 mm water
- Response time
- 0.25 s standby; 1 s power-up
- Connection
- 1/4 inch BSP female fitting
- Weight
- 0.85 kg
Downloads
Documentation, openly available
Everything you need to specify, install and integrate the PR-7100 — 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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