CDP301 Dew-Point Tester User’s Manual
Michell Instruments 33
SYSTEM START-UP
4.3 Battery Replacement
Procedure for changing the battery in the CDP301:
Warning: This work should only be carried out in a non-hazardous (safe) area.
1. Ensure the CDP301 is turned o.
2. Place the CDP301 display downwards on a solid, at surface.
3. Unscrew base of the CDP301.
4. Unplug the battery from the CDP301.
5. Slide the old battery out from the CDP301.
6. Reverse steps 3, 4 and 5 to insert the new battery.
4.4 Battery Charging (within the Dew-Point Tester)
NOTE: This procedure allows the charging of the battery whilst still inserted in the
CDP301.
Warning: This work should only be carried out in a non-hazardous (safe) area.
1. Ensure the CDP301 is turned o.
2. Place the CDP301 on the holding cradle or a solid, at surface
3. Loosen the 2 Hexagonal head (2.5mm Allen key) captive screws from the
charge socket cover on the keypad. Remove the charger port cover.
Figure 23
Remove Charger Cover
4. Connect the power supply adaptor (Michell part number CDP301-PS) to
the CDP301.
5. Turn the mains supply on. A blue LED indicates that charging is taking
place when the CDP301 is turned o. This LED is located above the LC
display in the fascia.
6. Turn on the power on the CDP301 to access the data on the instrument,
if required during charging. The battery power capacity icon will indicate
charge status.
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