Maintenance - Amprobe AM-100 User Manual

9
HOLD
The hold feature freezes the display for later view. Press the HOLD button
momentarily to activate or to exit the hold feature.
MAX
The max feature compares and displays the measured maximum value as fast as
25ms in a single range, and with automatic up range capability. Press the MAX
button for 1 second or more to activate or to exit the max feature in the voltage or
current functions.
Sleep Mode
The meter will enter a low power consumption sleep mode automatically to extend
battery life after approximately 30 minutes of no rotary-switch or push button
operations. To wake up the meter from sleep mode, press any buttons momentarily or
turn the rotary-switch to an adjacent position. Always set the rotary-switch to the OFF
position manually when the meter is not in use.

5) MAINTENANCE

WARNING
To avoid electrical shock, disconnect the meter from any circuit, remove the test leads
from the input jacks and turn OFF the meter before opening the case. Do not operate
with open case.
Cleaning and Storage
Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives
or solvents. If the meter is not to be used for periods of longer than 60 days, remove
the batteries and store them separately
Trouble Shooting
If the instrument fails to operate, check batteries and test leads etc., and replace as
necessary. Double check operating procedure as described in this user's manual.
If the instrument voltage-resistance input terminal has subjected to high voltage
transient (caused by lightning or switching surge to the system) by accident or
abnormal conditions of operation, the series fusible resistors will be blown off (become
high impedance) like fuses to protect the user and the instrument. Most measuring
functions through this terminal will then be open circuit. The series fusible resistors and
the spark gaps should then be replaced by qualified technician. Refer to the LIMITED
WARRANTY section for obtaining warranty or repairing service.