Endress+Hauser Oxymax H COS21D, Operating Instructions Manual

Page: 5 / 36

Oxymax H COS21D Safety instructions
Hauser 5
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organization.
1.3 Operational safety
The sensor has been designed and tested according to the state of the art and left the factory in
perfect functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local prevailing standards and regulations.
1.4 Safety Instructions for Ex versions
The inductive sensor-cable-plug-in system Memosens, consisting of
• oxygen sensor Oxymax H COS21D-*12*1 and
• measuring cable CYK10-G**1
is suitable for the use in explosion-hazardous areas acc. to the type-examination certificate
BVS 04 ATEX E 121 X . The corresponding EU declaration of conformity is part of this
document.
"
Caution!
• The certified oxygen sensor Oxymax H COS21D-*12*1 in combination with the measuring
cable CYK10-G**1 may only be connected to certified, intrinsically-safe, digital sensor
circuits of the transmitter Liquiline M CM42-*G*********. The electrical connection must
be carried out in compliance with the wiring diagram.
• Oxygen sensors for use in Ex areas have a special, conductive O-ring. The metallic sensor shaft
is electrically connected to the conductive mounting location (e.g. a metallic assembly) by
means of the O-ring.
• You must take appropriate measures to connect the assembly or the mounting location to the
operational ground in accordance with Ex guidelines.
• The sensors must not be used under electrostatical critical process conditions. Strong vapour
or dust streams acting directly on the plug-in system are to be avoided.
• Ex versions of digital sensors with Memosens technology are marked with an orange-red ring
on the plug-in head.
• The maximum permissable cable length is 100 m (330 ft).
1.5 Return
If the sensor has to be repaired, please return it cleaned to the sales center responsible.
Please use the original packaging, if possible.
Please enclose the completed "Declaration of Hazardous Material and De-Contamination" (copy
the second last page of these Operating Instructions) with the packaging and the transportation
documents.
No repair without completed declaration!