22
TH2822C applies 8.4V rechargeable battery with
LH-200H7C as the reference type. Do not use non-
rechargeable batteries with the exception of
emergency cases. The reason is that the charging
circuit will operate once the instrument is
connected to external power.
To Install the Battery:
1． Open up the back-flip stand, and locate the
screw that tightens the battery compartment
cover as indicated in Figure 5. Use a
screwdriver to unscrew and remove the cover.
2． Insert proper battery into compartment. Note
the positive (+) and negative (-) terminals as
indicated inside the battery compartment
(See Figure 6). Be sure to insert the battery
with matching polarity.
3． Place the battery compartment cover piece
by sliding it into the top slid first. Place screw
at the bottom of the cover piece and tighten
down with a screw driver.
4． Push and hold down the power ON/OFF
button for 2 seconds to turn on the instrument.
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