ADCMT 6241A - Page 277

6241A/6242 DC Voltage Current Source/Monitor Operation Manual
9.1.2 6242 Source and Measurement
9-11
Range
Overall accuracy 1-day stability Temperature coefficient
± (% of reading + A +A × Vo/1 V)
± (ppm of reading + A +
A × Vo/1 V)/°C
Current-
measurement
30 μA 0.03 + 8 nA + 300 pA 0.01 + 4 nA + 100 pA 20 + 1 nA + 10 pA
300 μA 0.03 + 70 nA + 3 nA 0.01 + 35 nA + 1 nA 20 + 7 nA + 100 pA
3 mA 0.03 + 700 nA + 30 nA 0.01 + 350 nA + 10 nA 20 + 70 nA + 1 nA
30 mA 0.03 + 7 μA + 300 nA
0.01 + 3.5 μ A + 100 nA 20 + 700 nA + 10 nA
300 mA 0.045 + 70 μA + 3 μA 0.01 + 35 μA + 1 μA 20 + 7 μA + 100 nA
3 A 0.08 +2.2 mA + 150 μA 0.05 +1.5 mA + 25 μA 50 + 300 μA + 20 μA
5 A 0.15 +2.2 mA + 150 μA 0.12 +1.5 mA + 25 μA 50 + 300 μA + 20 μA
(Auto zero ON, Integration time: 1 PLC to 200 ms)
Condition
Overall accuracy 1-day stability Temperature coefficient
± (% of reading) ± (digits + digits + digits)
± (ppm of reading) ±
(digits + digits + digits)/
ºC
Resistance
measurement
At volt-
age-source
Reading item: (Voltage-source setting item + Current-measurement reading item)
Full-scale item: (Voltage-source full-scale item digit value + current-measurement
full-scale item digit value +CMV item digit value)
*4
At cur-
rent-source
Reading item: (Current-source setting item + Voltage-measurement reading item)
Full-scale item: (Current-source full-scale item digit value + voltage-measurement
full-scale item digit value +CMV item digit value)
*4
(Auto zero ON, Integration time: 1 PLC to 200 ms)
Vo : Compliance-voltage(-6 V to +6 V)
*4 : CMV item = (A × Vo/1 V); source or measurement current × source or measurement voltage/1 V digit
value