Keithley 2701

B Model 7700 Connection Guide
Card configuration — schematic ............................................... B-2
Connections and wiring ............................................................ B-4
Screw terminals .................................................................. B-4
Wiring procedure ............................................................... B-6
Typical connections ........................................................... B-8
Connection log ................................................................. B-10
C Status and Error Messages
D Signal Processing Sequence and Data Flow
Signal processing sequence ....................................................... D-2
Basic signal processing ...................................................... D-2
Signal processing using instrument features ...................... D-3
Signal processing using Ratio or Ch Avg .......................... D-6
Data flow (remote operation) .................................................... D-7
SENSe and sample buffer .................................................. D-8
[SENS[1]]:DATA[LATest]? ............................................... D-9
[SENS[1]]:DATA:FRESh? ................................................. D-9
FETCh? ............................................................................ D-10
READ? ............................................................................. D-10
MEASure? ........................................................................ D-10
CALC[1]:DATA[LATest]? ............................................... D-10
CALC[1]:DATA:FRESh? ................................................ D-10
CALC3:LIM1:FAIL? ....................................................... D-11
CALC3:LIM2:FAIL? ....................................................... D-11
TRACe:DATA? ................................................................ D-11
CALC2:IMM? .................................................................. D-12
CALC2:IMM ................................................................... D-12
CALC2:DATA? ................................................................ D-12
Continuous measurement mode ....................................... D-12
Scanning ........................................................................... D-13
E Measurement Considerations
Measurement considerations ...................................................... E-2
Thermoelectric potentials .................................................... E-2
Thermoelectric generation .................................................. E-3
Minimizing thermal EMFs .................................................. E-4
Source resistance noise ....................................................... E-5
Magnetic fields .................................................................... E-6
Radio frequency interference .............................................. E-6
Ground loops ....................................................................... E-6
Shielding ............................................................................. E-8
Meter loading ...................................................................... E-9