64 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Setting up Measurement Conditions and Display
Setting Up Display
4-
• Δ% (percentage) deviation measurement
Identifies the difference between the actual measurement of the DUT and
the stored reference value and displays it as a percentage of the reference
value. This percentage deviation value is calculated based on the following
formula:
To set up the deviation measurement feature:
Step 1. Press [Meas Setup].
Step 2. Use the cursor keys to select the REF A field.
Step 3. Enter the reference value using the softkeys or entry keys. If you use the entry
keys to enter the value, the softkey labels change to unit labels (p, n, u, m, x1,
k).
Step 4. Use the cursor keys to select the DEV A field.
Step 5. Use the softkey to select the deviation mode for the primary parameter:
Step 6. Using the cursor keys, select the DEV B field.
Step 7. Select the deviation mode for the primary parameter using the softkeys
described in
Step 5.
Δ% = (X-Y)/Y×100 (%)
X actual measurement of the DUT
Y stored reference value
Softkey Description
MEASURE If you want to use a particular device/component as the reference,
connect the DUT and press this key. Then the instrument measures the
DUT once and automatically fills the REF A and REF B fields with the
measured values, which now serve as the reference values.
Softkey Description
ABS Displays the deviation as the difference from the reference value.
% Displays the deviation as a percentage of the reference value.
OFF Turns OFF deviation measurement.
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