METREL MD 9880
DMM Setup and Measurements
13
Using RANGE
In Autorange mode, the instrument selects the most appropriate measurement ratio
automatically depending on the input magnitude.
Press the RANGE key to activate the manual ranging mode and disable the Auto
range function. The message
"Manual Range” will appear in the middle of the
display instead of "Auto Range".
Press the RANGE key to change measuring range. The relevant decimal point will
change its position.
The RANGE key cannot be used in the function switch positions
.
If a reading is higher than the maximum measurable value for selected range, the
indication
“O.L” appears on the display.
Press and hold the RANGE key for more than 1 second to exit the manual mode
and restore the Auto range mode.
Hold Mode
To freeze the display of any function, press key HOLD. Press again to release freeze.
Capturing Minimum and Maximum Values
The MAX MIN Record mode captures minimum and maximum input values. When
the input falls below the recorded minimum value or rises above the recorded
maximum value, the Meter beeps and records the new value. This mode is intended
for capturing intermittent readings, recording minimum and maximum readings
unattended or recording readings while equipment operation precludes watching the
Meter. To activate the MAX MIN mode, push the navigation stick left toward soft
button MAX. If the Meter is already in MAX MIN function, pushing navigational stick
left causes the Meter to turn off MAX MIN function.
Relative Values
To activate the relative mode, press the navigational stick up to soft key labelled
REL. If the Meter is already in the relative function, pressing the soft button the Meter
to turn it off.
Capturing Peak Values
To activate the peak mode, press the navigational stick right to soft key labelled
PEAK. If the Meter is already in the peak function, pressing the soft button causes
the Meter to turn it off. Peak is the highest value in a single period of the waveform.
Maximum is the highest value since the mode has been activated.