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15.0 MAINTENANCE
15.1 Routine maintenance
This instrument was designed and manufactured using top-quality components. Proper and systematic
maintenance will prevent the onset of malfunctions and will increase instrument life altogether.
The following basic requisites are to be respected:
• Do not expose the instrument to substantial thermal shocks before use. If this happens, wait for the
temperature to return to normal working values.
• Do not extract flue gas samples directly without using a particulate/water trap.
• Do not exceed sensor overload thresholds.
• When the analysis is over disconnect the sample probe and let the E4500 draw fresh air for a few minutes, or
at least until the displayed parameters return to their original values. Do NOT bypass Post purge of the unit.
• Clean the filter unit when necessary, replacing the particulate filter and applying a jet of air to the sample
probe hose to eliminate any condensate that may have formed.
Do not clean the instrument with abrasive cleaners, thinners or other similar detergents.
15.2 Preventive maintenance
At least once a year send the instrument to a SERVICE CENTER for a complete overhaul and thorough internal
clean
ing.
E INSTRUMENTS’s highly qualified staff is always at your disposal and will provide you with all the sales,
technical, application and maintenance details required.
The service center will always return the instrument to you as new and in the shortest time possible. Calibration is
performed using gases and instruments comparable with National and International Specimens. Annual servicing
is accompanied by a specific calibration certificate that is a guarantee of perfect instrument performance as
required by UNI 10389-1, besides being indispensable for users wishing to maintain ISO 9000 status.
15.3 Cleaning the sample probe
When you finish using the sample probe clean it thoroughly as described below before returning it to its case:
• Disconnect the sample probe from the instrument and from the water trap (Fig. a-b) then blow a jet of clean air
into the hose of the probe (refer to Fig. b) to remove any residual condensate that may have formed within.
Fig. a
Fig. a
Fig. b
Cleaning hose
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