Replacing The Battery - PeakTech 1640 Bedienerhandbuch

3. Determine that the amplitude level of the signal to be
measured is not greater than the input voltage limit (250 V
AC/DC). The signal amplitude must also be greater than the
sensitivity level.
4. Attach the probe tips to the points across which the
frequency is to be measured, and read the result directly
from the display.
5. Disconnect the test leads.

7. Replacing the battery

WARNING! To avoid electrical shock, disconnect the test leads
and any input signals before replacing the battery. Replace only
with same type of battery.
This meter is powered by a NEDA type 1604 or equivalent 9 V-
battery. When the meter displays the battery symbol the battery
must be replaced to maintain proper operation. Use the following
procedure to replacing the battery.
1. Disconnect test leads from any live source, turn the rotary
switch to OFF and remove the test leads from the input
terminals.
2. The battery cover is secured to the bottom case by a screw.
Using a Philips-head screwdriver, remove the screw from
the battery cover and remove the battery cover.
3. Remove the battery and replace with a new equivalent 9 V-
battery.
4. Replace the battery cover and reinstall the screw.
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