Fluke Biomedical 190M - Manual (Page 49)

Using the Scope and Meter
Making Multimeter Measurements (Model 190M-2)
1
39
Selecting Auto/Manual Ranges
To activate manual ranging, do the following during any
Meter measurement:
1
MANUAL
AUTO
Activate manual ranging.
2 mV
V
RANGE
Increase (V) or decrease (mV)
the range.
Observe how the bargraph sensitivity changes.
Use manual ranging to set a fixed bargraph sensitivity and
decimal point.
3
MANUAL
AUTO
Choose auto ranging again.
When in auto ranging, the bargraph sensitivity and
decimal point are automatically adjusted while checking
different signals.
Making Relative Meter Measurements
A relative measurement displays the present
measurement result relative to a defined reference value.
The following example shows how to perform a relative
voltage measurement. First obtain a reference value:
1
METER
Display the METER key labels.
2 Measure a voltage to be used as
reference value.
3 F2 Set RELATIVE to ON . ( ON is
highlighted.) This stores the
reference value as reference for
subsequent measurements.
Observe the
ADJUST REFERENCE
soft key (F3) that enables you to
adjust the reference value (see
step 5 below).
4 Measure the voltage to be
compared to the reference.