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7
Maintaining the product
7.1.
Cleaning the measuring instrument
> If the housing of the measuring instrument is dirty, clean it with
a damp cloth.
7.2.
Replacing sensors
✓ The instrument must be switched off.
1. Place the measuring instrument on its front.
2. Remove the service cover: Take hold of it at the markings
(arrows) using the index finger and thumb, press slightly, fold
up and remove.
3. Pull hose connections from the faulty sensor / bridge.
4. Remove the faulty sensor / bridge from the slot.
> For NO-sensor: Remove the auxiliary circuit board.
Use distilled water, or alternatively mild solvents such as
isopropanol to clean the flue gas analyzer. If using
isopropanol, please refer to the instruction leaflet for the
product. Isopropanol fumes have a slight narcotic effect,
and typically cause irritation of the eyes and sensitive
mucous membranes. When using it, please ensure that
there is adequate ventilation.
Do not store any objects that have come into contact with
solvents and/or degreasers (e.g. isopropanol) in the case.
Evaporating or leaking solvents and/or degreasers may
cause damage to the instrument and to the sensors.
The use of strong or harsh alcohol or brake cleaner can
result in damage to the instrument.
A slot bridge (0192 1552) must be inserted in slots which
are not equipped with a sensor. Used sensors must be
disposed of as hazardous waste!
7 Maintaining the product
69
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