USER MANUAL OPTIMA 7
MRU GmbH, D-74172 Neckarsulm 64 / 78
10 Maintenance and care
The analyzer requires very little maintenance to maintain its value over a
long period
• occasionally: cleaning the probe and the probe hose.
• after each measurement: Pull off the gas sampling hose on the ana-
lyzer, so that the hose can dry.
• If not used for a longer period of time, charge the battery first.
• Charge the battery approximately every 4 weeks.
Maintenance
An annual inspection and, if necessary, calibration of the sensors by an
MRU service centre (www.mru.eu) is recommended to maintain their
value
Please note that correct operation of the analyzer is
only ensured if the sensors are adjusted regularly.
► Depending on the intensity of use, the sensors have
to be adjusted / calibrated 1-2 times a year.
Service messages
A message is displayed after 1,000 hours or 11 months.
If the analyzer has the optional guarantee extension of 60 months this
will be shown in another window. Confirm these messages with F2= OK.
The next time you switch on, you will be reminded to carry out the an-
nual service.
A complete service at an MRU service centre (MRU service centres can
be found at www.mru.eu) includes the function check and calibration or
cleaning of the following components:
Sensors, pumps, internal / external hose lines, battery, draft, electronics,
time and date, temperature inputs, gas sampling probe, condensate
separator.
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