MAINTENANCE
1. Battery Replacement: The 265 will display a battery
symbol when the internal 9 Volt battery needs
replacement. The battery is replaced as follows:
a. Disconnect and remove all test leads
from live circuits and from the 265.
b. Loosen the screw from the back of the 265 bat-
tery cover.
c. Remove the battery compartment cover.
d. Remove old battery and replace with new bat-
tery. Observe the correct polarity on the battery.
e. Reassemble the instrument in reverse
order from above.
2. Cleaning your 265:
Use a mild detergent and slightly damp cloth to clean
the surfaces of the 265.
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MEASURING RESISTANCE
Do not attempt to make
resistance measurements
with circuit energized. For
best results, remove the
resistor completely from
the circuit before mea-
suring.
NOTE: To make accurate low ohm mea-
surements, short the test leads together
and record the resistance reading. Deduct
this value from actual readings.
Measurement Procedure:
1. Disconnect power to circuit to be
measured.
2. Plug black test lead into the COM input
jack.
3. Plug the red test lead into the V/
W
input
jack.
4. Set the rotary switch to the “ON” position.
5. Connect test leads to circuit to be
measured.
7. Read the resistance on the TPI 100.
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