Operation
Section 1
Page 5
key,
NOISE
key, and in the step tone and 3M 1020B
options under the
AC LINE TEST
key. To enter a
telephone number, press the
DIAL
key
, LOSS
key
,
or
NOISE
key. Press the
(star key) to advance to the
SELECT/EDIT
screen. Use the arrow keys to move the
cursor, then type the number. Use the
OHMS TO
DISTANCE
key to erase a number. Press the
DIAL
key to
store the number. Press the
ON/RESET
key to escape the
program without dialing.
3.
AUTO CAL
3.1
The
AUTO CAL
key gives you access to the
following maintenance and accessory functions.
Use the up- and down-arrow keys to move the cursor to
your choice, then press the
(star) key to activate the
function.
A.
Charge Battery
3.2
For rechargeable batteries only, use this option
and follow the displayed instructions to use the
internal battery charger. The unit determines when the
batteries are fully charged and turns itself off automatically.
Warning:
Never try to charge a non-rechargeable battery. Damage to the
battery or personal injury from explosion may result.
B.
Self Calibration
3.3
To maintain accuracy, use this option to
self-calibrate the unit every day and during
temperature changes. Press the
(star) key to select
SELF CALIBRATION
, then short all the test clips
together. Press the
(star) key. The unit displays
“PLEASE WAIT”
while it self-calibrates, then “beeps”
and instructs you to disconnect the leads and press the
(star) key. When you have disconnected the leads, and