Using The Features - Greenlee CMT-80 Instruction Manual

Using the Features

• ON/OFF/HOLD: Momentarily press the ON/OFF/HOLD button to hold the present
measurement on the display; momentarily press again to return to the normal
display mode. Press and hold to turn the unit on or off.
• Smart Hold: The hold feature is disabled when "OL" is displayed on the LCD. The
LCD will blink and the beeper will sound if the unit is in HOLD mode and the input
increases by 5.0 volts or 5.0 amps. It will also blink and flash if the unit is in HOLD
mode and detects an input type change, such as from AC volts to AC amps.
• Auto Hold (AC amps only): The unit automatically holds a stable AC current
measurement that is 3 amps or more. The unit beeps three times to indicate it has
saved the stable value. This value will be displayed for 5 seconds after the unit
is removed from the conductor. The value can be recalled by pressing the HOLD
button. To enable this feature, press and hold the ON/OFF/HOLD button until the
"AutoHold" icon blinks when turning the unit on, approximately 5 seconds.
• Battery Capacity Display: The unit displays the percentage of remaining battery
capacity when it is powering up. Replace the battery when "0%" is shown.
• Power-on Self-test: The unit automatically tests its internal circuitry after it
displays battery capacity. If a problem is found, the LCD will display "FAIL". Do not
use the meter if "FAIL" is shown on the LCD.
Note: Do not measure while powering up as this could cause an incorrect self-test
failure.
• Automatic Power Off: To extend battery life, the unit will shut itself off after
approximately 20 minutes of inactivity. To disable this feature, press and hold
the ON/OFF/HOLD button until the "APO" icon blinks when turning the unit on,
approximately 3 seconds.
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