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ScopeMeter® Test Tool 190 Series II
Users Manual
34
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.
Now the large reading is the actual input value minus the
stored reference value. The actual input value is displayed
below the large reading (ACTUAL: xxxx), see Figure 13.
Figure 13. Making a Relative Measurement
You can use this feature when, for example, you need to
monitor input activity (voltage, temperature) in relation to a
known good value.
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