Water Level Sensors

Van Essen

Cera-Diver

Monitoring groundwater under potentially corrosive conditions, such as brackish water and seawater, requires a robust and durable datalogger.

The ceramic-shelled Cera-Diver is designed specifically for such environments. This highly reliable and compact Diver measures groundwater levels with a typical accuracy of ±0.05% full scale.

In addition to its rugged casing, the Cera-Diver’s memory capacity can store up to 48,000 measurements (date/time, pressure and temperature) – almost one measurement every ten minutes for an entire year.

The Cera-Diver has the following sample methods: fixed length intervals, event dependent, averaging and pumping test.

The Cera-Diver is available in the following pressure ranges: 10 m, 20 m, 50 m and 100 m.

FEATURES

Features:

  • Innovative ceramic housing technology
  • Compact size: Ø 22 mm – length 90 mm
  • Various measurement methods
  • 48,000 records of time stamp, pressure and temperature
  • 30-Point Pressure Factory Calibration

Benefits:

  • Corrosion Proof
  • Easy installation in almost every well
  • Event based, averaging and pumping tests sample methods to conserve memory
  • Cost effective frequent, long-term measuring
  • Reliable and accurate data
Specs

General

Length

Diameter

Memory

Housing

Weight

Battery life

Sample interval

Sample methods

90 mm

22 mm

48,000 measurements

ceramic (ZrO2)

50 grams

10 years (dependent on usage)

0.5 second to 99 hours

fixed, event dependent, averaging, and pumping test

Pressure

Part No

DI701

DI702

DI705

DI710

Unit

Range

10

20

50

100

meter

Accuracy

±0.5

±1.0

±2.5

±5.0

cmH2O

Resolution

0.2

0.4

1.0

2.0

cmH2O

Temperature

Value

Unit

Range -20 .. +80

°C

Accuracy ±0.1

°C

Resolution 0.01

°C

Downloads

Brochure

Download

Manual

Download

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