Amprobe ACD-15 Pro Manuale d'uso - Pagina 15

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• Press SELECT button momentarily AGAIN selects Capacitance function.

Capacitance measurement time varies with capacitance value. Only a few

seconds is required for measuring values of below 100μF. However, one

minute or more is required for measuring extreme values of around 2000μF.

HOLD � feature

The Hold feature freezes the display for later viewing. Press the HOLD �

button momentarily to toggle to the Hold feature. The symbol "�" appears.

Backlighted display (model ACD-15 TRMS Pro only)

Press the SELECT button for 1 second or more to turn on or off the display

backlight feature.

Auto Power Off (APO)

The meter turns off intelligently after approximately 3 minutes of neither

significant measurement nor button/switch activity. To wake up the meter from

APO, press any button or turn the rotary selector to OFF and back on again.

Always turn the rotary selector to OFF when the meter is not in use.

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 w ith open case.

Trouble Shooting

If the instrument fails to operate, check batteries and test leads etc., and

replace as n ecessary. Double check operating procedure as described in this

user's manual. If the instrument voltage-resistance input terminal was 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 (become high impedance, open) 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.