Keithley 2010 Service Manual

Verifying DC current
Check DC current accuracy by applying accurate DC currents from the DC current calibrator
to the AMPS input of the Model 2010 and verifying that the displayed readings fall within
specified limits. Follow these steps to verify DC current accuracy:
1. Connect the Model 2010 AMPS and INPUT LO jacks to the calibrator as shown in
Figure 1-3.
2. Select the DC current measurement function by pressing the DCI key.
3. Set the Model 2010 for the 10mA range.
4. Source positive and negative full-scale currents for each of the ranges listed in Table 1-4,
and verify that the readings for each range are within stated limits.
Table 1-4
DCI limits
DCI
range
Applied DC
current*
Reading limits
(1 year, 18°C–28°C)
10mA
100mA
1A
3A
10.0000mA
100.0000mA
1.000000A
2.20000A
9.994200 to 10.005800mA
99.94200 to 100.05800mA
0.9991200 to 1.0008800A
2.197240 to 2.202760A
*Source positive and negative currents with values shown.
2000 MULTIMETER
!
R
Output HI
Input
LO
Output
LO
Model 2010
5700A Calibrator (Output DC Current)
Amps
Note: Be sure calibrator is set for
normal current output.
Fi
gure
1
-
3
C
onnections for DC
current verification
1-8 Performance Verification

Keithley 2010 Specifications

General

Frequency Range	3 Hz to 300 kHz
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
DC Current Range	3 A
DC Current Accuracy	0.05%
AC Current Range	3 A
Resistance Accuracy	0.01%
Interface	GPIB, RS-232
Power Supply	50 Hz or 60 Hz