EXTECH DM220 [5/15] Maintenance
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EXTECH DM220 [5/15] Maintenance

EXTECH DM220 [5/15] Maintenance
DM220 V3.0 01/06 5
FLASHLIGHT
Press and hold the
button to turn the flashlight on. Release the button to turn
the flashlight off.
AUTO POWER OFF
The auto off feature will turn the meter off after 15 minutes.
LOW BATTERY INDICATION
The icon will appear in the lower left corner of the display when the battery
voltage becomes low. Replace the battery when this appears.
Maintenance
WARNING: To avoid electric shock, disconnect the test leads from any source
of voltage before removing the battery cover.
WARNING: To avoid electric shock, do not operate your meter until the battery
cover is in place and fastened securely.
This MultiMeter is designed to provide years of dependable service, if the following
guidelines are followed:
1. KEEP THE METER DRY. If it gets wet, wipe it off.
2. USE AND STORE THE METER IN NORMAL TEMPERATURES. Temperature
extremes can shorten the life of the electronic parts and distort or melt plastic
parts.
3. HANDLE THE METER GENTLY AND CAREFULLY. Dropping it can damage
the electronic parts or the case.
4. KEEP THE METER CLEAN. Wipe the case occasionally with a damp cloth.
DO NOT use chemicals, cleaning solvents, or detergents.
5. USE ONLY FRESH BATTERIES OF THE RECOMMENDED SIZE AND TYPE.
Remove old or weak batteries so they do not leak and damage the unit.
6. IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME, the
batteries should be removed to prevent damage to the unit.
BATTERY INSTALLATION
WARNING: To avoid electric shock, disconnect the test leads from any source of
voltage before removing the battery cover.
1. Turn power off.
2. Open the rear battery cover by removing the Phillips head screw located on the
bottom of the meter.
3. Insert the batteries into battery holder, observing the correct polarity.
4. Put the battery cover back in place. Secure with the screw.
WARNING: To avoid electric shock, do not operate the meter until the battery
cover is in place and fastened securely.
NOTE: If your meter does not work properly, check the batteries to make sure that
they are still good and that they are properly inserted.
RESETTABLE FUSE
1. The fast acting, 0.2A/500V resettable fuse will open if the current limits of the
meter are exceeded.
2. The fuse will automatically reset itself when the suspect current is removed
from the meter’s input.

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