Keithley 2750 User Manual

Model 2750 Multimeter/Switch System User’s Manual Signal Processing Sequence and Data Flow D-3
Signal processing using instrument features
Figure D-2 shows the processing sequence for an input signal with various instrument fea-
tures enabled. If a feature is not enabled, the reading simply falls through to the next
enabled feature or to the display.
Figure D-2
Signal processing using instrument features
Input Signal
Rel
Math
(mX+b, Percent,
or Reciprocal)
Rel’ed reading = Reading - Rel value
Y = mX + b
Percent = ————––—
X - Reference
Reference
100%
Reciprocal = 1/ X
Limits
Filter
Buffer
Display
Reading
Recall
OComp
OComp reading = ΔV/ΔI
A/D
Conversion
Process
Store
Signal
Conditioning
Output trigger pulse (VMC)
Moving or Repeating
2750-900-01.book Page 3 Wednesday, August 3, 2011 7:56 AM

Keithley 2750 Specifications

General

Interface	GPIB, RS-232, Ethernet
Switching Speed	Up to 500 channels/second
Maximum Voltage	300V
Operating Temperature	0°C to 50°C
Measurement Functions	DCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution	6.5 digits
Current	1A
Maximum Current	1A