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Users Manual
26
Making Relative 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 Display the METER key labels.
2 Measure a voltage to be used as
reference value.
3 Set RELATIVE to ON. (ON is
highlighted.)
This stores the reference value as reference for
subsequent measurements. The stored reference value is
displayed in small digits at the bottom right side of the
screen after the word
REFERENCE.
4 Measure the voltage to be
compared to the reference.
Observe that the main reading is displayed as variations
from the reference value. The actual reading with its
bargraph is displayed beneath these readings. (See
Figure 15.)
Figure 15. Making a Relative Measurement
You can use this feature when, for example, you need to
monitor input activity (voltage, resistance, temperature) in
relation to a known good value.