Installation / Operation
When connecting
®
to a ProMinent
device
Safety conditions at the interface are automatically fulfilled when connecting
to ProMinent
The CLE 3.1-mA is a sensor with a passive 4-20 A two-wire interface, i.e. the
power supply is external, e.g. via the controller.
Electrical installation
7
7.1
To acquire a stable display value the sensor should be run in for a
predetermined period.
When first commissioned:
When re-commissioned:
When membrane/electrolyte replaced:
24
®
controllers (e.g. DULCOMETER
Rotate the sensor adapter a quarter-turn anticlockwise and pull off
(bayonet fitting).
Unscrew the locking screw of the PG 7 threaded connector and feed
through the signal cable from the controller.
Strip the cable ends and connect to the 2-wire connector:
1 = plus, 2 = minus.
Insert approx. 5 mm of the signal cable into the sensor and tighten the
PG threaded connector locking screw.
Push the sensor adapter right into the housing and rotate carefully
clockwise until the stop. Important not to break the tips of the bayonet
fitting.
Operation
IMPORTANT
• The sensor must not be operated in water or solutions
containing surfactants.
• Do not switch off the measuring system during interval
operation! After operation without chlorine, running-in
periods are to be reckoned with. If required, switch on
metering unit time-delayed! If no chlorine is metered for a
longer period of time, the sensor must be disconnected
from the power supply and stored dry.
Run-in period
®
D1C).
2 - 6 h
2 - 6 h
1 - 3 h
ProMinent
®