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Model 2790 SourceMeter
8.
9.
10.
Figure 16-6
Connections for Model 2790 resistance verification (100M
Model 2790
Model 2790 SourceMeter Switch System
RATIO
CH AVG
CONT
OCOMP
MATH O U T P U T
PERIOD SENSOR
DCV
ACV
ACI
Ω2
Ω4
SHIFT
DCI
FREQ
DELAY
HOLD
LIMITS
ON/OFF
TYPE
MONITOR
CH-OFF
LOCAL
TRIG
EX TRIG
STORE
RECALL
FILTER
REL
POWER
SAVE
SETUP
CONFIG
HALT
TEST
LSYNC
GPIB
CLOSE
OPEN
STEP
SCAN
DIGITS RATE
EXIT
SENSE LO INPUT LO
Table 16-6
Limits for resistance verification
Ω Range
100Ω∗
1kΩ
10kΩ
100kΩ
1MΩ
10MΩ
100MΩ
*Enable O COMP (offset-compensated ohms) when testing 100Ω range.
**Calculate limits based on actual calibration resistance values and Model 2790 one-year resistance accuracy
specifications. See Verification limits.
®
Switch System Reference Manual
Disable external sense on the calibrator.
Set the Model 2790 for the 100MΩ range.
Source a nominal 100MΩ resistance value, and verify that the reading is within
calculated limits for the 100MΩ range.
INPUT HI
SENSE HI
SENSE
Ω 4 WIRE
INPUT
HI
350V
1000V
!
PEAK
PEAK
LO
500V
PEAK
INPUTS
TEMP
RANGE
F
F
R
F
CARD
AUTO
FRONT/REAR
3A 250V
AMPS
RANGE
RS-232
ENTER
Nominal
Nominal reading limits
resistance
(1 year, 18°C to 28°C)
100Ω
99.9880 to 100.0120Ω
1kΩ
0.999894 to 1.000106kΩ
10kΩ
9.99894 to 10.00106kΩ
100kΩ
99.9890 to 100.0110kΩ
1MΩ
0.999890 to 1.000110MΩ
10MΩ
9.99590 to 10.00410MΩ
100MΩ
99.6970 to 100.3030MΩ
Ω
range)
Resistance Calibrator
OUTPUT
HI
OUTPUT
LO
NOTE Use shielded low-thermal cables
to minimize noise. Disable
calibrator external sense.
__________ to __________ Ω
__________ to __________ kΩ
__________ to __________ kΩ
__________ to __________ kΩ
__________ to __________ MΩ
__________ to __________ MΩ
__________ to __________ MΩ
Recalculated limits**
16-15
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