Model 2110 5½ Digit Multimeter Calibration Manual
Section 3: Performance verification
2110-905-01 Rev. A / July 2012
3-3
Resistance accuracy verification
RESISTANCE ACCURACY VERIFICATION
Range
Test Point
Accuracy Limits
Upper Limit
Lower Limit
100 Ω
100.0000 Ω
100.025 Ω
99.9755 Ω
1 kΩ
1.000000 kΩ
1.00022 kΩ
0.99978 kΩ
10 kΩ
10.00000 kΩ
10.0022 kΩ
9.9978 kΩ
100 kΩ
100.0000 kΩ
100.022 kΩ
99.978 kΩ
1 MΩ
1.000000 MΩ
1.00024 MΩ
0.99976 MΩ
10 MΩ
10.00000 MΩ
10.0104 MΩ
9.9896 MΩ
100 MΩ
100.0000 MΩ
101.505 MΩ
98.495 MΩ
Specifications for 4-W ohms mode:
a. (For 2-W ohms, use zero null or subtract lead resistance from displayed reading.)
b. Max lead resistance 10% of range per lead for 100 Ω and 1 kΩ ranges;
Add 1 kΩ per lead for all other ranges.
DC current accuracy verification
DC CURRENT ACCURACY VERIFICATION
Range
Test Point
Accuracy Limits
Upper Limit
Lower Limit
10 mA
5.0000 mA
5.0045 mA
4.9955 mA
9.0000 mA
9.0065 mA
8.9935 mA
100 mA
50.000 mA
50.035 mA
49.965 mA
90.000 mA
90.055 mA
89.945 mA
1:00 AM
0.50000 A
0.50095 A
0.49905 A
0.90000 A
0.90155 A
0.89845 A
3:00 AM
1.50000 A
1.50390 A
1.49610 A
2.70000 A
2.70630 A
2.69370 A
10:00 AM
5.0000 A
5.0175 A
4.9825 A
9.0000 A
9.0275 A
8.9725 A
Specifications valid after 2-hour warm-up:
a. ADC set for continuous trigger operation.
b. Input bias current < 30 pA at 25 °C.
c. Input protection 1000 V all ranges (2-W input).
e. Repeat the checks above for negative polarity.
