Service; Battery Packs - Ventis MX4 Product Manual

SERVICE

Instructions are provided for battery service; monitor conversion (diffusion to aspirated and vice versa); sensor,
sensor barrier and LCD service; and pump assembly service. Refer to the three-dimensional view diagrams to
identify the parts referenced in the instruction sets, and for screw torque values.
Read all instructions before beginning any monitor service.
NOTICES
 Before beginning any service tasks, power-off the monitor.
 Only qualified staff should perform monitor service and should take the following precautions.
 Take care not to touch battery contacts on the monitor or the battery itself.
 Perform work in a clean air environment that is known to be nonhazardous.
 Perform work on a nonconductive work surface.
 Wear grounding straps.

BATTERY PACKS

NOTICES
 WARNING: INSERT THE ALKALINE BATTERIES WITH THE CORRECT POSITIVE " + " AND NEGATIVE
"-" ORIENTATION. FAILURE TO FOLLOW PROPER BATTERY ORIENTATION WILL RESULT IN
DAMAGE TO THE MONITOR.
 WARNING: The Ventis MX4 is only approved for use with AAA battery types Energizer EN92 and Duracell
MN2400. Do NOT mix battery types.
Battery service instruction sets are provided below for each allowable monitor/battery pack combination. Please
choose, read, and then follow the appropriate instruction set.
Aspirated Monitor Battery Replacement
For an aspirated monitor, two of the three Ventis MX4 battery packs can be used. The Extended Range Li-ion
battery is replaced as a single part. The Alkaline battery unit consists of batteries and a pack for the batteries.
ASPIRATED MONITOR BATTERY REPLACEMENT.
Removing the Battery Pack.
1 Power-off the monitor.
2 Loosen the four captive screws on the lower portion of the pump module bottom (back of the
module).
3 Loosen the single captive screw on the pump door.
4 Slide the pump door down; lift to reveal and access the monitor.
5 Lift and remove the monitor from the pump module; set aside the monitor.
6 Lift and remove the battery pack from inside the lower portion of the pump module.
Replacing the Battery Pack.
If inserting the Alkaline battery pack, follow steps 1-5.
If inserting the Extended Range Li-ion battery pack, follow step 5 ONLY.
1 To prepare the alkaline battery pack, unlatch and lift the hinged portion of the battery pack.
2 If needed, remove and set aside the spent batteries from within the pack.
3 Insert new batteries so that their negative contacts are in contact with the springs inside the pack.
DO NOT MIX BATTERY TYPES.
4 Close the latch. A click sounds.
5 To properly place the Extended Range Li-ion (or Alkaline) battery pack inside the pump module,
complete or observe the following:

the battery circuitry is exposed and faces the user;

a small groove at the back of the battery bottom fits over the small rib at the back of the pump
module bottom.
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Ventis™ MX4 Product Manual
© 2014 Industrial Scientific Corporation