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Performance Testing and Calibration
Performance Tests
4
4-5
Table 4-2. Performance Tests (Voltage, Resistance, and Frequency)
FUNCTION RANGE INPUT FREQUENCY
DISPLAY ACCURACY
(1 Year, 18-28°C)
LEVEL MIN MAX
DC Volts 90 mV *
90 mV *
300 mV
300 mV
300 mV
900 mV* **
3V
3V
30V
150V
300V
short (0)
90 mV
short (0V)
150 mV
290 mV
900 mV
2.9V
-2.9V
29V
150V
290V
-0.007
89.962
-0.02
149.93
289.89
899.70
2.8988
-2.9012
28.990
149.94
289.90
0.007
90.038
0.02
150.07
290.11
900.30
2.9012
-2.8988
29.010
150.06
290.10
* Range only used on 2635A (not used in autoranging).
** Computer I/F only (see FUNC command).
Note
Voltages greater than 150V can only be applied to channels 0, 1, and 11.
AC Volts 300 mV
300 mV
300 mV
300 mV
3V
30V
150V
300V
20 mV
20 mV
290 mV
900 mV
2.9V
29V
150V
290V
1 kHz
100 kHz
1 kHz
100 kHz
1 kHz
1 kHz
1 kHz
1 kHz
19.71
18.50
289.26
275.00
2.8934
28.931
149.54
289.34
20.28
21.50
290.74
305.00
2.9066
29.069
150.46
290.66
Note
Voltages greater than 150V can only be applied to channels 0, 1, and 11.
The rear Input Module must be installed when measuring ac volts on
channel 0.
Resistance (4-Terminal)
Note
For 2-terminal measurements, the resistance accuracy given in this table
applies to channel 0 only and makes allowance for up to 0.05
Ω
of lead
wire resistance. You must add any additional lead wire resistance present
in your set up to the resistance values given in this table.
Using inputs in decades of 3:
300Ω
3 kΩ
30 kΩ
300 kΩ
3 MΩ
short
300Ω
short
3 kΩ
30 kΩ
300 kΩ
3 MΩ
0.00
299.80
0.0000
2.9981
29.980
299.81
2.9979
0.09
300.27
0.0003
3.0020
30.020
300.19
3.0021
Using inputs in decades of 1.9:
300Ω
3 kΩ
30 kΩ
300 kΩ
3 MΩ
short
190Ω
short
1.9 kΩ
19 kΩ
190 kΩ
1.9 MΩ
0.00
189.87
0.0000
1.8987
18.987
189.87
1.8986
0.09
190.20
0.0003
1.9014
19.013
190.13
1.9014