Electrical connection
CE 4
12
Hauser
3.4
Check installation
Once the unit has been installed, run the following checks:
4
Electrical connection
4.1
Wiring the measurement station
"
Caution!
Do not install/wire the measurement station under live power conditions. Non-
compliance can lead to damage of the electronics.
In order to wire the measurement station follow these steps:
1.
Loosen the 2 fixing screws on the electronic compartment, open the swing frame.
2.
Connect mains power as shown in the electrical connection diagram in the ring
binder section 3.
3.
Connect the signal cables as shown in the connection schematic in section 3 in the
ring binder.
4.
Close the swing frame and tighten the fixing screws.
4.1.1
Connecting mains power
"
Caution!
•
Before connecting mains power compare this with the power supply on the legend
plate.
4.2
Screening and potential compansation
When installing please take note of the following:
If screened cables are to be used then the screen on the output (output signal 4 - 20mA)
and the sensor connection end must have the same potential!
It is recommended to use screened cable with a low Ohm earth/ground connection on
plants where strong electromagnetic fields could be present. Sensor cables installed
outside are recommended to be screened as a precaution against the danger of
lightening strikes!
4.3
Ingress protection
•
Analysis compartment and base IP 44
•
Water sampler controller IP 65
•
Water sampler electronic compartment IP 43
•
Water sampler IP 54
Unit condition and specification
Hints
Is the measurement station damaged?
Visual check
Is the rinse water pipe correctly installed and has it been tested for
leaks?
-
Have the hoses been installed correctly? (no possibility of dry
operation)
Have the hose jubilee clips been tightened?
-
