Bird Technologies AT-500-Manual - Manual (Page 63)

Maintenance
45
For models equipped with minimum 2000 mAh
Nickel-Metal Hydride (NiMH) batteries
(p/n 5B2230):
Note:
To retain trace data stored in nonvol-
atile RAM, leave the AC mains adapter con-
nected during battery replacement.
1. Lay the Antenna Tester, display side down, on a
clean surface.
2. Using a small phillips screwdriver, remove six
screws from the back cover.
3. Lift the back cover approximately two inches above
the front cover.
4. Flip the back cover in the direction of the arrow
shown below. To avoid disconnecting P2, (battery
connector), lay the back cover next to the front.
5. Remove the old batteries.
6. Install the new batteries checking the orientation
of the positive and negative terminals. Polarity is
indicated on the case, and in Figure 17.
WARNING
Replace with ONLY Nickel-Metal
hydride (NiMH) rechargeable AA
batteries with a nominal voltage of 1.2V
and minimum capacity of 2000mAh. DO
NOT install any type of battery such as
alkaline or other type of secondary
(rechargable) batteries.
WARNING
Charging batteries installed in reverse polarity can
cause the battery to swell or rupture.