Extech Instruments EX505A Quick Start Manual page 5

two black Phillips screws. The meter automatically switches off after
approximately 15 minutes.
FEATURES
Automatic and Manual Range
In the current, voltage, resistance, and capacitance modes, the me-
ter automatically selects the optimum range. To use manual range,
press the RANGE button, subsequent presses will step through the
ranges. Long press RANGE to return to Auto range.
Data Hold
To freeze the displayed reading, press the HOLD button, the HOLD
icon will appear. Press the HOLD button to return to normal
operation.
Maximum and Minimum Readings
Press the MAX/MIN button to toggle the maximum and minimum
reading displays. The MAX and MIN display icons show the se-
lected mode. Long press the MAX/MIN button to exit.
Relative (REL) Mode
The Relative feature allows you to make measurements relative to
a stored reference. The displayed value is the difference between
the reference and the measured value.
Press the REL button to store the reference (REL will appear). The
display will now indicate the difference between the stored value
and the measured value. Press REL to exit.
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