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AquaCell - the user-friendly measuring cell
The measuring cells AquaCell operate according to the tried and tested potentiostatic three-wire
electrode principle in which the measurement is taken directly in the actual sample water.
The same basic housing is used for the entire range and the difference between the various types
is limited to a small number of key components geared to the relevant function:
- AquaCell AQC D1: pressure-proof, electro-motorised cleaning
- AquaCell AQC D2: pressure-proof, hydromechanical cleaning
- AquaCell AQC D3: unpressurised, hydromechanical cleaning
A detailed look reveals a large number of innovative solutions that greatly simplify measuring
tasks in water treatment and have a beneficial effect on operating costs.
The type of measuring cell with electro-motorised cleaning AQC D1, like the hydromechanical variants,
also has a cleaning impeller that ensures optimal cleaning thanks to its well designed arrangement
in relation to the measuring electrodes. The major advantage is that there are not any small parts
that can move around freely and easily get lost. This means that maintenance work is much quicker
and easier - an economic benefit that should not be underestimated and one that is augmented by the
wear-free measuring electrode and counter-electrode.
All three AquaCell types come as standard with a temperature sensor permanently integrated into the
measuring electrode. This ensures that - in combination with an appropriate measuring amplifier - the
effect of temperature fluctuations on measurement of the disinfectant and pH values can automatically
be compensated for. Consequently, no separate temperature sensor is required.
The sample water control system is equipped with a fine-precision adjusting spindle. And the control
device has an upstream filter cartridge to stop dirt particles getting into the measuring cell from
the outset. The design of this cartridge enables it to be removed and dismantled very easily for cleaning.
As a result, the Grundfos Alldos measuring cell is also suitable for water treatment involving high
levels of contamination.
One real highlight is the integrated calibration vessel. The bottom of the pH and redox electrode mount
has a screw vessel for adding the relevant buffer solution. This saves the operator considerable time as
he no longer needs to remove the electrodes for calibration.
Easy maintenance is also a prime concern when looking at other details. AquaCell has special shut-off
spindles installed on the inlet and outlet sides so that the water supply can be shut off for maintenance
purposes. This is particularly important for types of measuring cells that can be pressurised as no
additional installation kits are required.
Last but not least it is easy to switch from hydromechanical to motorised cleaning thanks to an easy-to-operate
conversion kit, if the water quality changes.
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AquaCell AQC-D1
AquaCell AQC-D2
AquaCell AQC-D3
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