Keithley 2750 Service Manual

Connections
AC volts calibration 2-12
DC and AC amps calibration 2-11
DC volts and ohms calibration 2-8
Input terminal wire 5-6
manufacturing calibration 2-22
Model 2700 AC current verification 1-13
Model 2700 AC volts verification 1-10
Model 2700 DC current verification 1-12
Model 2700 DC volts verification 1-9
Model 2700 frequency verification 1-20
Model 2700 resistance verification
(100MW range) 1-15
Model 2700 resistance verification (100W
to 10MW ranges) 1-14, 1-17, 1-29
Model 7700 AC current verification 1-25
Model 7700 AC volts verification 1-22
Model 7700 DC current verification 1-24
Model 7700 DC volts verification 1-21
Model 7700 frequency verification 1-34
Model 7700 ratio and average verification
1-35
Model 7700 resistance verification
(100MW range) 1-27
Model 7700 resistance verification (100W
to 10MW ranges) 1-27
Model 7700 thermocouple temperature
verification 1-31
Power module wire 5-7
connections
low-thermal short 2-7
D
dB characteristics accuracy A-3
dBm characteristics accuracy A-3
DC calibration commands B-8
DC characteristics accuracy A-2
DC current A-4, A-5
verifying, Model 2700 1-11
verifying, Model 7700 1-24
DC voltage A-4, A-5
Verifying, Model 2700 1-8
verifying, Model 7700 1-21
DCA signal multiplexing and gain 4-22
DCV signal multiplexing and gain 4-22
DCV signal switching 4-16
derating factors
additional A-4
Digital circuitry 4-7
block diagram 4-6
Digital circuitry checks 4-15
Digital I/O 4-8
Disassembly 5-1
Disassembly procedures 5-4
DISP test 4-3
Display 4-7
Display board 4-6
Display board checks 4-14
E
Environmental conditions 1-3, 2-2
Error queue B-24
Error summary B-21
Extender board connections 2-24
F
factory defaults
restoring 1-6
Factory service 6-2
frequency
Verifying, Model 2700 1-20
verifying, Model 7700 1-34
Front panel
disassembly 5-5
tests 4-3
Front panel Model 7700 calibration 2-24
Front terminal AMPS fuse 3-4
fuse
front terminal, replacing 3-4
Power line 3-3
fuses
plug-in module, replacing 3-5
G
Generating an SRQ on calibration complete
B-26
Generating an SRQ on error B-25
H
Handling and cleaning 5-2
Handling PC boards 5-2
I
IEEE-488 interface 4-8
INPUT HI 4-11
Input terminal wire colors 5-6
Instrument reassembly 5-6
Introduction
Calibration 2-2
Calibration Program C-2
Calibration Reference B-2

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