Keithley 2015, Руководство по обслуживанию

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1-12 Performance Verification
Verifying DC current
Check DC current accuracy by applying accurate DC currents from the DC current calibrator
to the AMPS input of the Model 2015 and verifying that the displayed readings fall within spec-
ified limits.
Follow these steps to verify DC current accuracy:
1. Connect the Model 2015 AMPS and INPUT LO jacks to the calibrator as shown in
Figure 1-3.
Figure 1-3
Connections for DC current verification
2. Select the DC current measurement function by pressing the DCI key, then choose the
SLOW integration rate with the RATE key.
3. Set the Model 2015 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
.99460 to 10.00540mA
99.9100 to 100.0900mA
0.999160 to 1.000840A
2.197315 to 2.202685A
*Source positive and negative currents with values shown.
Output HI
Output
LO
2015 THD MULTIMETER
RANGE
!
F
500V
PEAK
FRONT/REAR
3A 250V
AMPS
HI
INPUT
LO
SENSE
Ω
4 WIRE
INPUTS
350V
PEAK
1000V
PEAK
AUTO
SHIFT
LOCAL
POWER
RANGE R
SHIFT
CH1 REM
TALK
LSTN
SRQ
STAT REL FILT
4W
BUFFER
MATH
REAR SCAN
TIMER
STEP CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10
HOLD TRIG FAST MED SLOW AUTO ERR
EXIT ENTER DIGITS RATE
REL FILTER TRIG EX TRIG STORE RECALL
SOURCE MEAS
DCV DCI
MATH T H D dBm
ACV ACI
Ω
2
Ω
4 FREQ TEMP
dB CONT PERIOD TCOUPL
LIMITS ON/OFF DELAY HOLD
SAVE SETUP
CONFIG HALT
TEST
RS232
GPIB
CAL
STEP SCAN
Model 2015
Input
LO
Note: Be sure calibrator is set for
Amps
DC Current Calibrator
normal current output.
THD