View All Sea Bird View All Hydrolab Products View All OTT Products View All ADCON Products View All Van Essen Products View All Eijkelkamp Products View All Turner Products View All Turner Products
Products
CBS

The OTT CBS meets or exceeds USGS standards for accuracy, and will not drift over time. It features outputs for SDI-12 and 420 mA.

Application: Surface water, Groundwater
Measurement technology: Bubbler-in
Product Highlights: Drift-free water level measurement - no pressure sensor or electronics in the water
Measurement range: 0 to 15 m or 0 to 30 m
Accuracy: ± 3 mm (high accuracy version); ± 5 mm (standard and 30 meter versions)
Internal data logger: No
Interface: SDI-12, RS-485 (using SDI-12), or 4 ...20 mA

Features
  • Accurate—Meets and exceeds USGS guidelines for water level accuracy, and will not drift over time

  • Complete Solution—Combining the CBS with an EPS-50 bubble chamber reduces the influence of wave action and prevents unnecessary noise in your data
  • Low Maintenance—No desiccant, pump maintenance, or lubrication required
  • Easy-to-Start/Install—All programming can be completed using DIP switches; connect into existing platforms using 3/8' O.D. or 4mm O.D. measuring tube (no adapters required)
  • Compact Size—small and powerful pump motor generates the required volume of air to perform measurement.
  • Low Power—Intelligent pumping strategy compares the previous measurement to the actual pressure at the current measurement, and optimizes the pumping time depending on the difference (i.e., small changes in level are measured with very short pump cycles)

Specs

Water level measurement

 

Measuring range

 

Version ''Standard'' and

''USGS specification''

0 ... 15 m (0...50 ft)

Version ''30 m measuring range''

0 ... 30 m (0...100 ft)

Resolution

1 mm (0.01 ft)

Accuracy

 

Version ''Standard'' and

''30m measuring range''

±5 mm

Version ''USGS specification''

0 ... 15 ft: ±0.01 %
15 ... 50 ft: ±0.065 % of measurement value or 0.02 ft, whichever is less

Units

m, ft, bar, PSI

Electrical data

 

Interfaces

4 ... 20 mA, SDI-12, SDI-12 via RS-485

Power supply

10 ... 30 V DC, typ. 12/24 V DC

Current consumption

 

Measuring interval 1 min

typ. 320 mAh/day

Measuring interval 15min

typ. 25 mAh/day

Housing material

ABS

Dimensions L x W x H

165 mm x 205 mm x 115 mm

Weight

approx. 1,500 g

Protection class

IP43

Environmental conditions

 

Operating temperature

-20 ... +60 °C

Storage temperature

- 40 ... +85 °C

Relative air humidity

10 ... 95 %; not condensing

Measuring tube

2 mm or 4 mm ID

EMV - limit values

According to IEC61326 and EN61326


Documents
Brochure
Manual
Additional
Related Categories
Dataloggers
Aqualab Systems
Water Level Sensors
Telemetry