Kahn Optisure Remote, User Manual

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Optisure Remote User’s Manual
Kahn Instruments 33
MAINTENANCE
3. Locate the fuse carrier and pull it out of the connector housing. A small
screwdriver inserted under the lip may be useful in order to lever it out.
4. Replace the fuse cartridge. NOTE: It is essential that a fuse of the
correct type and rating is installed in the instrument (T2.5A 20 x
5mm Ceramic Anti-surge Fuse).
5. Fit a new fuse cartridge into the fuse carrier and push the fuse carrier back
into the power connector housing.
6. Install the power connector into the power socket, switch on the
external power supply and switch on the instrument. Check that
the instrument is now operational. If the fuse blows immediately on
switch-on either contact the manufacturer or their service agent.
DO NOT ATTEMPT ANY FURTHER SERVICING PROCEDURES
5.3 Sensor Mirror Cleaning
Throughout the life of the instrument, periodic cleaning of the mirror surface and optics
window may be required. The frequency of this depends upon operating conditions and
the potential in the application for contaminants to be deposited on the mirror. Sensor
cleaning is mandatory if the instrument indicates an optics fault.
The cleaning procedure is as follows:
1. Switch off the instrument and remove the sensor from its sample block.
2. Clean the mirror surface and optics window with a Q-Tip soaked in distilled
water. If the sensor has been exposed to oil based contamination then use
one of the following solvents: methanol, ethanol, or isopropyl alcohol. To
avoid damage to the mirror surface do not press too firmly on the Q-Tip
when cleaning. Allow the cleaning solvent to fully evaporate.
Figure 26 Sensor Mirror Cleaning