Endress+Hauser CCS120D, Руководство по эксплуатации

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CCS120D Installation
Hauser 21
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2
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A
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 8 Membrane cap with electrolyte bottle
1 Nozzle
2 Ventilation hole
3 Electrolyte bottle
4 Membrane cap
5 Hose seal
A Electrolyte level
5.2.3 Installing sensor in CCA250 assembly
The Flowfit CCA250 flow assembly is designed for installing the sensor. It allows a pH and an
ORP sensor to also be installed, in addition to the total chlorine sensor. A needle valve
controls the flow rate in the range of 30 to 120 l/h (7.9 to 31.7 gal/h).
Please note the following during installation:
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The flow rate must be at least 30 l/h (7.9 gal/h). If the flow drops below this value or stops
completely, this can be detected by an inductive proximity switch.
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If the medium is fed back into an overflow basin, pipe or similar, the resulting
counterpressure on the sensor may not exceed 1 bar (14.5 psi)(2 bar abs. (29 psi abs.)) and
must remain constant.
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Negative pressure at the sensor, e.g. due to medium being returned to the suction side of a
pump, must be avoided.
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To avoid buildup, heavily contaminated water should also be filtered.
Additional installation instructions can be found in the Operating Instructions for the
assembly.
5.2.4 Installing sensor in other flow assemblies
When using other flow assemblies, please ensure the following:
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A flow velocity of at least 15 cm/s (0.49 ft/s) must always be ensured at the membrane.
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The flow direction is upwards. Transported air bubbles must be removed so that they do
not collect in front of the membrane.