Level Measurement & Monitoring

   
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Cera-Diver
SWS Cera-Diver

Product Features

  • Robust, durable, corrosion proof housing
  • SWS Cera-Diver ideal for long-term monitoring in saline environments
  • Corrosion proof groundwater datalogger
  • 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






TD Diver

Product Features

TD-DIVER

  • The original Diver water level logger or datalogger
  • Market leading datalogger for measuring and recording of groundwater level and temperature
  • Internal memory of 72,000 measurements (and 72,000 as backup)
  • Available in various measuring ranges

BENEFITS

  • Cost-effective long-term Groundwater Monitoring datalogger
  • Easy installation datalogger in almost every well
  • With 72,000 records you can record a sample every 15 minutes for more than 2 years
  • Easy connection with SDI-12, Modbus protocols
  • Cost effective frequent, long-term measuring
  • Reliable and accurate data
  • Low maintenance, No user calibration

 







Baro-Diver

Product Features

Perfect for accurate barometric compensation

 

FEATURES

  • Compact size: diameter 22 mm - length 110 mm
  • 72,000 records of time stamp, atmospheric pressure and temperature (and 72,000 as backup)
  • 30-Point Pressure Factory Calibration
  • Corrosion-proof ceramic pressure sensor

BENEFITS

  • Easy to install in almost every well
  • Cost friendly and long-term measuring solution
  • Dependable and accurate data
  • No user calibration, low maintenance 

 







CS410-L Shaft Encoder
Campbell Scientific CS410-L Shaft Encoder

Product Features
 
  • Encoder resolution is 100 counts per shaft revolution; 1 ft circumference pulley=0.01 ft resolution
  • Starting torque is less than 0.125 inch-ounces
  • Outputs two pulse strings
  • Float, pulley, float line, end hooks, counterweight also available through CSI
  • CS410-L Shaft Encoder for measures water level in stilling wells
  • Maximum cable length is 100 ft






Water Level Recorder - NIWA Hydrologger
NIWA Water Level Recorder - NIWA Hydrologger

Product Features
 
  • Comprises a water surface float-driven shaft encoder and internal data logger with rainfall input.
  • Connects directly to compatible communications devices.
  • NIWA Water Level Recorder - NIWA Hydrologger provides reliable, unattended, long-term monitoring of water level and rainfall.
  • Can resolve a water level change as small as 0.2mm and is one of the most accurate ways to monitor water levels to millimetre accuracy.
  • It maintains this accuracy for the service life of the instrument, without calibration or maintenance.
  • Like the 6541 water level encoder, it senses the position of the water surface using a float and counterwight system.
  • As the water level changes, the float position changes. 
  • This change is coupled, via a beaded float wire, to a pulley attached to the shaft of the optical encoder. 
  • The shaft rotates as the water surface and float move up and down and the position of the water surface is encoded as a number.
  • Up/down buttons, located behind the front lid, allow user to set this number so that the Hydrologger outputs actual water level.
  • Displays water level on an LCD display on the front panel and provides outputs to conditionally control external devices.
  • Integrates a low torque, high resolution, optical shaft encoder and Unidata Micrologger datalogger, bringing user a modern compact, simple to use, portable measurement and recording instrument. 
  • Can log data at intervals from 0.25 seconds to one week and can store approximately 100,000 water level and rainfall records.
  • Has a range of 0–65 m, providing 1 mm data resolution from its standard 500 mm beaded float line input pulley.
  • An optional 100 mm circumference pulley provides a resolution of 0.2 mm.
  • Data may be downloaded via its RS232 port or, if required, can be remotely downloaded via a telemetry system.
  • Compatible with Starlog software and is user programmable; recording interval, on-board data manipulation, reading external SDI sensors, or control of an output device.
  • Data is available in ASCII format and is compatible with NIWA’s TIDEDA time series data manager and with other commonly available processing/archiving software.






Water Level Encoder - Unidata 6541
Unidata Water Level Encoder - Unidata 6541

Product Features
 
  • Uses a float and counterweight system to convert water level into an electronic output that can be read by a datalogger.
  • Accurate to within a millimetre over a wide range.
  • Unidata Water Level Encoder - Unidata 6541 can resolve a water level change as small as 0.2mm and is one of the most accurate ways to monitor water levels to millimetre accuracy.
  • It maintains this accuracy for the service life of the instrument, without calibration or maintenance.
  • The instrument displays water level on an LCD display on the front panel and provides an electronic SDI or 4-20mA current loop output for connection to a data recorder.
  • It senses the position of the water surface using a float and counterwight system.
  • As the water level changes, the float position changes. 
  • This change is coupled, via a beaded float wire, to a pulley attached to the shaft of the optical encoder. 
  • The shaft rotates as the water surface and float move up and down and the position of the water surface is encoded as a number.
  • Up/down buttons, located behind the front lid, allow you to set this number so that the Hydrologger outputs actual water level.






CS460-L Pressure Transducer
Campbell Scientific CS460-L Pressure Transducer

Product Features
 
  • CS460-L Pressure Transducer has a Hytrel cable that contains a vent tube so that the sensor head can reach equilibrium with atmospheric pressure.
  • As the vent tube connects directly with the back side of the sensor's diaphragm, water vapor needs to be removed from the air entering the vent tube.
  • Removing the water vapor helps protect the sensor head from mildew, corrosion, rust, and also prevents formation of a liquid column in the vent tube which will directly affect the measurement.






MJK Float Switch 7030

Product Features
 
  • MJK Float Switch 7030 belongs to a new generation of float switches where the mercury switches used previously have been replaced with up-to-date environmentally friendly materials.
  • Float switches are often used environmentally sensitive engineered systems such as pumping stations and sewage plants, so it is very important that the switches do not contain mercury.






MJK Electrode Control 501

Product Features
 
  • A simple and low cost system for the control of level.
  • Includes a level relay for DIN-rail mounting combined with a range of different level electrodes.
  • MJK Electrode Control 501 for the control of e.g. a pump or for detecting high or low levels and for a level alarm.
  • A jumper bridge determines whether to registrate a high or low level.
  • A reliable measurement system in conductive liquids.
  • The amplifier can easily be mounted on DIN-rail
  • The electrodes are available as cable or for mounting on 1'' ISO electrode rod holder
  • The MJK sensor bracket can be used for mounting the rod holder on a wall






Capacitive Water Depth Probes
Unidata Capacitive Water Depth Probes

Product Features
 
  • Unidata Capacitive Water Depth Probes designed for high resolution measurement of fresh or salt water.
  • They use the different dielectric characteristics of water and air to measure water depths.
  • Calibrated to standard ranges and sealed.
  • May be submerged for short periods at a maximum depth of 2 metres.
  • Contains integrated electronics and offset and gain adjustments.
  • Easily disassembled for cleaning.
  • Salt water and high ionic water do not affect the accuracy of this probe.
  • Not designed for measuring non-ionic liquids such as hydrocarbons (e.g., petroleum).