5.5-6 Section 5: Using the Model 9100: Procedure Mode
Final Width = 215mm
5.5.4 Output Slewing
In the '1 Year Verification' and 'ISO9000 Verify' procedures, there is a need for the 9100
output to be adjusted ('slewed') around the nominal test point value. This enables the 'slew
error' to be registered in the 9100 internal memory, to appear on printed certificates.
5.5.4.1 Fine Slewing Adjustments
(
To provide slewing in single-digit increments, there is an 'ENABLE CURSOR' screen
key on the bottom row of all 'READ — SLEW SOURCE' screens. The effect of pressing
this key is to place the cursors on the least-significant digit of the 'Applied Value',
enabling all the cursor keys, shift keys, spinwheel, and mouse to operate as for the
Digit Edit facility (refer to Section 3, paras 3.4.4).
5.5.4.2 Coarse Slewing Adjustments
(
Most slewing operations will require initial steps of adjustment larger than a single digit.
These coarser adjustments are made available on the 'Applied Value', with the 'ENABLE
CURSOR' key cancelled, in order to reduce the time required to perform a verification.
Only the spinwheel, the and
keys and mouse are enabled. The size of their
increments and decrements are calculated internally as: one twentieth of the value
between the upper and lower limits of the specification tolerance at the subject test point.
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