Keithley SourceMeter 3A 2420, Руководство по обслуживанию

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2-10 Calibration
Table 2-3
Front panel voltage calibration
*Use EDIT and RANGE keys to select source range.
**Multimeter reading used in corresponding calibration step. See procedure.
Step 3: Current calibration
Perform the steps below for each current range, using Table 2-4 as a guide.
1. Connect the Model 2420 to the digital multimeter, as shown in Figure 2-2. Select the
multimeter DC current measurement function.
Source
range*
Source voltage
Multimeter voltage
reading**
0.2V +200.00mV
+000.00mV
-200.00mV
-000.00mV ___________ mV
___________ mV
___________ mV
___________ mV
2V +2.0000V
+0.0000V
-2.0000V
-0.0000V ___________ V
___________ V
___________ V
___________ V
20V +20.000V
+00.000V
-20.000V
-00.000V ___________ V
___________ V
___________ V
___________ V
60V +60.000V
+00.000V
-60.000V
-00.000V ___________ V
___________ V
___________ V
___________ V
Model 2420
Digital Multimeter
Input LO
Amps
2420 3A SourceMeter
250V
PEAK
5V
PEAK
HI
LO
OUTPUT
75V
PEAK
75V
PEAK
EDIT
TOGGLE
POWER
RANGE
INPUT/
OUTPUT
4- WIRE
SENSE
DISPLAY
ON/OFF
TERMINALS
FRONT/
REAR
AUTO
RANGE

EXIT ENTER CONFIG MENU
SWEEP TRIG REL LOCAL FILTER
LIMIT
DIGITS SPEED
V
Ω
MEAS
I FCTN V I
SOURCE
2 3 0 1
6 7 8 9
4
+/-
5
STORE RECALL
EDIT
Figure 2-2
10
µ
A to 1A range current
calibration test connections