SRS Labs SR715, Руководство пользователя

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OPERATION
2-18
BINNING
The SR715/720 has built in features to aid in component sorting. This is especially useful for production
testing, incoming inspection, device matching or tests where multiple devices of similar value must be
measured. The binning feature simplifies parts sorting by eliminating the need to read the major and minor
parameters and then deciding what to do with the part. [Store] and [Recall] allow up to 9 binning configurations
to be entered and saved making it easy to change between different setups. Binning configurations can also
be entered over one of the computer interfaces. The SR715/720 can sort components into as many as ten
separate bins - eight pass bins, a minor parameter failure bin, and a general failure bin. Binning operations
can either be performed from the front panel, in the BINS display, the standard RS232 computer interface or
the optional GPIB or Handler interface.
There are three different types of binning schemes that the SR715/720 supports: Pass/Fail, Overlapping, and
Sequential. Pass/Fail has only two bins; good parts and everything else. Overlapping or nested bins have one
nominal value and are sorted in progressively larger bins (+/-1%, +/-2%, +/-3%). Sequential bins can have
different nominal values, each separated by a percentage (.9*nom, .95*nom, 1.0*nom, 1.05*nom, with 5%
limits) or a single nominal value and asymmetrical limits (-3% to -1%, -1% to 1%, 1% to 3%). Limits are pairs
and can be symmetrical (+/-2%) or asymmetrical (-5% to -1%). Examples of different binning schemes are
listed below.
1. Sequential Bins 100
Ω
resistors sorted into symmetric
1% limit pairs, each with a different nominal value.
Bin0: nom : 98.2
Ω
+/-1%
Bin1: nom : 100
Ω
+/-1%
Bin2: nom : 102
Ω
+/-1%
Bin3: nom : 104
Ω
+/-1%
Bin8: QDR failure bin (if Q was too high)
Bin9: General Failure bin
2. Sequential Bins 100
Ω
resistors sorted with
asymetric limit pairs and a single nominal value.
Nominal value = 100
Ω
Bin0: -5% to -3%
Bin1: -3% to -1%
Bin2: -1% to +1%
Bin3: +1% to +3%
Bin8: QDR failure bin (if Q was too high)
Bin9: General Failure bin
Nested Bins 100
Ω
resistors sorted into progressively
looser symmetric limits pairs with a single nominal value.
Nominal value = 100
Ω
Bin0: +/-1%
Bin1: +/-2%
Bin2: +/-3%
Bin3: +/-4%
Bin8: QDR failure bin (if Q was too high)
Bin9: General Failure bin (parts that don't fall into
any other bin)