Scientific SM6026, Руководство пользователя

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User Manual SM6026 37
Operation steps for the swap parameter function :
Execute the following operations to swap the primary and the secondary parameters.
1) Move the cursor to
PARAM , the following soft key will be displayed.
 SWAP PARAM
2) Press SWAP PARAM to swap the primary and the secondary parameters.
3) Press SWAP PARAM to swap the primary and the secondary parameter, which is to recover the
formal setup.
3.7.2 Limit modes of compare function
Compare functions has two limit setup modes for primary parameters as shown in figure 3-3.
 Tolerance mode
Under tolerance mode, set the deviation value of the nominal one (be set in the NOM zone) as the
compare limit value. Deviation value has two modes: percentage deviation and absolute deviation.
 Sequential mode
Under sequential mode, the range of the test value is the compare limit value. The compare limit value
should be set in the order from small to large.
Figure 3-3 Tolerance mode and Sequential mode
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Note: When setting limit values of tolerance mode, the error range should be set in the order from small
to large. If the error range of BIN1 is the largest one, then all DUT will sort into BIN 1. Under tolerance
mode, the low limit is not necessary to be smaller than the nominal value and the high limit is not
necessary to be larger than the nominal value. The limit range of each bin can be discontinues or
overlapped.
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Operation steps for setting the limit mode of the compare function :
1) Move the cursor to the MODE zone, the following soft keys will be displayed.
 %TOL
This soft key is used to set the limit mode as the tolerance mode of percentage deviation
(% TOL).