Wiring
Oxymax H COS21
6
Hauser
#
Warning!
When using metallic assemblies and installation equipment, comply with national grounding
regulations.
2.4
Post-installation check
• Sensor and cable undamaged?
• Cap undamaged?
• Compliance with permissible sensor installation position?
• Is the sensor installed in an assembly and is not suspended from the cable?
• Avoid moisture by rain by fitting the protective cap to the immersion assembly?
3
Wiring
#
Warning!
• The electrical connection must only be carried out by a certified electrician.
• Technical personnel must have read and understood the instructions in this manual and must
adhere to them.
• Ensure that there is no voltage at the power cable before beginning the connection work.
3.1
Connection to Liquisys M COM223/253 F
The electrical connection between the sensor and the transmitter uses the multi-core special
measuring cable COK21.
a0005583-en
Fig. 3: Special measuring cable COK21
PK
GN / YE
BN
YE
BU
S
12
90
91
11
Assignment
Terminal
External shield
Cathode
Anode
NTC temp. sensor
Active internal shield
(NTC temp. sensor)
