Mounting The Sensor; Post-Installation Check; Electrical Connection - Endress+Hauser Oxymax COS22 Kurzanleitung

Oxymax COS22/22D
8.2

Mounting the sensor

Installation in suitable assembly is required (depending on the application)
WARNING
L
Electrical voltage
In the event of a fault, non-grounded metallic assemblies may be under voltage and then are
not touchable.
‣
When using metallic assemblies and installation equipment, observe the national
grounding provisions.
For a complete installation of a measuring point, proceed as follows:
1. Install a retractable or a flow assembly (if used) into the process.
2. Connect the water supply to the rinse connections (if you use an assembly with cleaning
function).
3. Install and connect the oxygen sensor.
NOTICE
Installation error
Cable break, loss of the sensor due to cable separation, unscrewing of the membrane cap
‣
Do not install the sensor suspended from the cable.
‣
Screw the sensor into the assembly so that the cable is not twisted.
‣
When installing or uninstalling the sensor body, hold it tightly. Turn it by the hexagonal
nut of the Pg thread only. Otherwise you might unscrew the membrane cap. This will then
remain in the assembly or process.
‣
Avoid exerting excessive tensile force on the cable (e.g. from jerky pulling).
‣
Select an installation location that is easy to access for later calibrations.
8.3

Post-installation check

• Are the sensor and cable undamaged?
• Compliance with permissible sensor installation position?
• Is the sensor installed in an assembly and is not suspended from the cable?
• Avoid the penetration of moisture by fitting the protective cap to the immersion assembly.
9

Electrical connection

WARNING
L
Device is live
Incorrect connection may result in injury or death.
‣
The electrical connection may be performed only by an electrical technician.
‣
The electrical technician must have read and understood these Operating Instructions and
must follow the instructions contained therein.
‣
Prior to commencing connection work, ensure that no voltage is present on any cable.
Electrical connection
23