Determining Scannlng Interval
l Scanning without selecting interval
-Program ,NTER”AL SELECT to OFF.
-Interval is s175msec. depending on other selected
parameters.
-INTERVAL OVERRUN message will not be displayed.
l Minimum Interval Time Calculation
--Interval time is the sum of:
1. (conversions per channel1 x Iconversion time1
2. Programmed DELAY time per channel
3. Break-before-make time l17msecl
4. Auto range time (if usedl
-In STEP mode, calculated time above is the INTERVAL
setting.
-In SCAN mode, (sum of l-41 x (number channels
scanned) is the minimum interval setting.
l When using the scanner with STEP or SCAN switching,
the DMM will take readings on each channel as if it were
in the one-shot mode whether programmed to CON-
TINUOUS or ONE SHOT:
-Conversions are automatically synchronized to chan-
nel closures. Channels will not close in the middle of
conversions.
-Any programmed DELAY is inserted between channel
closure and start of conversion (with scanner disabl-
ed, DELAY is inserted between trigger and start of
conversionI.
13
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