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RANGE
In the Voltage, Resistance, Frequency or Temperature function the meter automatically selects the
best range for the measurements being made. For measurement situations requiring that a range
be manually selected, perform the following:
1.
Press the RANGE button. The "AUTO" display icon will turn off.
2.
Press the RANGE key to step through the available ranges. Observe the decimal point and
units displayed until the preferred range is located.
3.
To exit the Manual Ranging mode and return to Autoranging, press and hold the RANGE key
for 2 seconds.
LCD Backlight
The LCD is equipped with backlighting for easier viewing, especially in dimly lit areas. Press and
hold the HOLD/
off after 5 seconds.
Automatic Power OFF
In order to conserve battery life, the meter will automatically turn off after approximately 15 minutes
of operation. The meter will beep shortly before the meter shuts off. If a button is pressed, the APO
timer will reset. If the meter is allowed to shut off, turn the function switch to the OFF position and
then to the function again to restart.
Low battery indication
When the
icon appears in the display, the battery should be replaced. Refer to the battery
replacement procedure in the maintenance section.
button for 2 seconds to turn the backlight on. The backlight will automatically turn
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MA640-en-GB_V2.4 5/15
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