Live Maintenance Procedure-Replacing Or Adding A Sensor - MSA ALTAIR 5 Manuel D'utilisation

3. For alkaline battery packs (ALTAIR 5 only):
a. Remove the battery holder circuit board from the instrument
b. Replace the three cells, using only those listed on the label.
• Be sure to observe proper polarity on the cells.
c. Place the battery holder circuit board back in the instrument
and reinstall the door.
d. Tighten the two screws.
4.4 Live Maintenance Procedure
- Replacing or Adding a Sensor
To add an additional toxic sensor to a unit, return it to an authorized
MSA Service Center for the necessary upgrades. Replacement of an
IR sensor should only be done at an authorized MSA Service Center.
Before handling the PC board, the user must be properly
grounded; otherwise, static charges could damage the
electronics. Such damage is not covered by the warranty.
Grounding straps and kits are available from electronics
suppliers.
Remove and reinstall sensors carefully, ensuring that the
components are not damaged; otherwise instrument
intrinsic safety may be adversely affected, wrong readings
could occur, and persons relying on this product for their
safety could sustain serious personal injury or death.
To add
an LEL, O 2 , CO or H 2 S
equipped with a full array of sensors, remove the sensor plug from in
front of the formerly unused sensor housing.
While instrument case is open, do not touch any internal
components with metallic/conductive objects or tools.
Damage to the instrument can occur.
! CAUTION
! WARNING
sensor to an instrument that is not already
! CAUTION
4-5