Measuring Current; Connections - Keithley 2016 User Manual

2-20 Basic Measurements

Measuring current

The Model 2016 can make DCI measurements from 10nA to 3A and ACI measurements from
1µAm to 3A RMS.
NOTE

Connections

Assuming factory default conditions, the basic procedure is as follows:
1.
2.
3.
4.
CAUTION
5.
6.
Figure 2-5
DC and AC current
measurements
See the previous discussion about crest factor in "Measuring voltage" in this section.
Connect test leads to the AMPS and INPUT LO terminals. The front inputs must be used;
place the INPUTS button in the FRONT position.
Select the measurement function by pressing DCI or ACI.
Pressing AUTO toggles autoranging. Notice the AUTO annunciator is displayed with
autoranging. If you want manual ranging, use the RANGE
measurement range consistent with the expected current.
Connect test leads to the source as shown in
Do not apply more than 3A, 250V to the input or the AMPS fuse will
open-circuit.
Observe the display. If the "OVERFLOW" message is displayed, select a higher range
until a normal reading is displayed (or press AUTO for autoranging). Use the lowest
possible range for the best resolution.
Take readings from the display.
Model 2016
REM STEP SCAN CH1 CH2 CH3 CH4 CH5 CH6
TALK
LSTN
SRQ
SHIFT
TIMER HOLD TRIG FAST MED SLOW REL FILT AUTO
dBm dB
MATH T H D CONT
Ω2
DCV ACV ACI
SHIFT DCI
HOLD
DELAY LIMITS ON/OFF TEST
LOCAL
EX TRIG TRIG STORE FILTER
RECALL
POWER
SAVE SETUP CONFIG HALT GPIB
SOURCE MEAS
STEP SCAN DIGITS RATE
THD
Caution: Maximum Input = 3A DC or RMS
Figure
SENSE
INPUT
Ω 4 WIRE
HI
CH7 CH8 CH9 CH10 MATH
REAR
4W
350V
ERR BUFFER STAT !
PEAK
2016 THD MULTIMETER
LO
PERIOD TCOUPL
INPUTS
Ω4
FREQ TEMP
RANGE
F R
CAL
AUTO
FRONT/REAR
REL
3A 250V
AMPS
RANGE
RS232
EXIT ENTER
and keys to select a
2-5.
1000V
PEAK
Current
500V
Source
PEAK