2002 by ELTRA GmbH Germany – January 2002 – Service Manual OH 900 / ON 900 / ONH 2000
0.1-2
The analysers ON - 900, OH - 900 and ONH – 2000 are of equal design.
The service manual is therefore common for all three types.
The only difference between them is the tubing and the chemicals. See 4.3
NOTE :
Servicing should only be done by a person with profession, who has mastered the
servicing and maintenance of this device, as well as having further qualifications,
especially in the field of electronics and physics.
We ask the users of this Service Manual to inform us about any possible mistakes.
We would also appreciate any suggestions for supplements and improvements to this
Service Manual.
CAUTION !
Before opening this device, always unplug the main power !
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