Model 2750 Multimeter/Switch System User’s Manual
Limits and Digital I/O
9-17
Limit 1 will be used to test for the 1% tolerance and Limit 2 will be used to test for the 5%
tolerance.
The resistance values for the 1% and 5% tolerances are calculated as follows:
R
1%
= 100
Ω
×
1%
R
5%
= 100
Ω
×
5%
= 100
Ω
×
0.01
= 100
Ω
×
0.05
= 1
Ω
= 5
Ω
The high and low limits are then calculated as follows:
HI Limit 1 = 100
Ω
+ R
1%
HI Limit 2 = 100
Ω
+ R
5%
= 100
Ω
+ 1
Ω
= 100
Ω
+ 5
Ω
= 101
Ω
=
105
Ω
LO Limit 1 = 100
Ω
– R
1%
LO Limit 2 = 100
Ω
– R
5%
= 100
Ω
– 1
Ω
=
100
Ω
– 5
Ω
= 99
Ω
= 95
Ω
The limits are illustrated in
.
Figure 9-7
Limits to sort 100
Ω
resistors (1%, 5%, and >5%)
Front Panel Operation
— For front panel operation, the INSIDE beeper mode must be
used. A normal pitch beep and the message IN indicates that the resistor is within the 1%
tolerance limit (
). This 1% resistor belongs in Bin 1. A raspy beep and the “1”
message indicates that the resistor is >1% tolerance but <5% tolerance. This 5% resistor
belongs in Bin 2. For resistors >5%, no beep will sound. Place these resistors in Bin 3.
100
Ω
101
Ω
HI1
105
Ω
HI2
95
Ω
LO2
99
Ω
LO1
Limit 1 (1%)
Limit 2 (5%)
LOW
IN
HIGH
Beep
(Normal Pitch)
Beep
(Low Pitch)
Beep
(Low Pitch)
No Beep
No Beep
2750-900-01.book Page 17 Wednesday, August 3, 2011 7:56 AM
Summary of Contents for 2750
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Page 324: ...12 CommonCommands 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 348: ...15 SCPIReferenceTables 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 374: ...B Model7700ConnectionGuide 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 386: ...C StatusandErrorMessages 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 394: ...D SignalProcessing SequenceandDataFlow 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 408: ...E MeasurementConsiderations 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 428: ...G IEEE 488BusOverview 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...