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190 Series III
Users Manual
26
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 11. You can use
this feature when, for example, you need to monitor input activity (voltage, temperature) in
relation to a known good value.
Figure 11. Making a Relative Measurement
To adjust the reference value:
1. Press 3 to open the ADJUST REFERENCE menu.
2. Press 1 to select the applicable relative measurement reading.
3. Use
g f to select the digit to adjust.
4. Use
h i
to adjust the digit. Repeat until finished.
5. Press E to use the new reference value.
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