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2.2 Location and Replacement of Batteries
The CTG-2 is provided with four CR123A 3V nonrechargeable long life lithium photo
batteries to power the system. (If desired, rechargeable CR123A 3V batteries can be
purchased and used with the unit.) The CTG-2 unit is designed to turn on when the
toggle switch on the base of the unit is flipped into the on position, making the indicator
light at the top of the handle illuminate green.
When the batteries are losing power, the green light will not illuminate. Instead, the red
light will come on. To ensure accurate readings, the batteries must be replaced at this
time. When light fails to illuminate (either green or red), the batteries have lost power
and MUST be replaced.
Location of the Batteries:
the four CR123A batteries that power the CTG-2 IE test
head are located inside the handle of the test head.
Battery Replacement:
To replace the batteries, follow these steps:
1. Using the toggle switch located at the base of the IE head, turn off the unit and
make sure the green light on the handle is not illuminated.
2. Use a Phillips screwdriver to remove the 2 screws at the rear of the handle as
shown in the picture below. Remove the battery compartment cover.
We recommend carrying spare batteries, and have provided a space for
them in the carrying case.
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