Freezing The Readings (Data Hold); Taking A Relative Measurement; Selecting The Automatic / Manual Range Modes - Extech Instruments MS420 User Manual

F R
REEZING THE EADINGS
You can hold the displayed readings at any time.
Press the RUN /STOP key to freeze the screen. STOP will be displayed at the
1.
top right of the screen
Press the RUN /STOP key again to resume normal measurement operation
2.
Figure 12: Freezing the Readings
T R
AKING A ELATIVE
The meter can display a reading 'relative' to a user-selectable reference value. Refer
to the following discussion on how to make a relative measurement.
First program a reference value. To do so, take a measurement and when the
desired reading is displayed press the "||/ " soft-key until the ' ' symbol is displayed
at the top of the screen; this indicates that the unit is in the Relative mode. The
reference value is shown on the display screen just below the relative mode symbol.
Now all subsequent readings in the main display area will be displayed relative to the
reference value.
S A
ELECTING THE UTOMATIC
The default mode of the instrument is the automatic range. To switch to the manual range,
perform the following steps:
Repeatedly press the F1 MANUAL soft-key until the desired range is selected on the
1.
meter's display. MANUAL will be displayed on the upper left hand corner of the
meter's display when in the manual mode
2. In the manual range mode, the measuring range is increased by one stage with each
press of the F1 key. When the highest range is reached, the meter jumps to the lowest
range
(D H )
ATA OLD
M
EASUREMENT
/ M R
ANUAL
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M
ANGE ODES
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