Preparing the Model 2182 for calibration
1. Turn on the Model 2182, and allow it to warm up for at least 2-1/2 hours before
performing the calibration procedure.
2. Start the calibration process as follows:
A. Access the calibration menu by pressing SHIFT then CAL.
B. Use the up and down RANGE keys to scroll through the available calibration menu
items until the unit displays RUN, then press ENTER.
C. At the prompt, enter the calibration code. (The default code is 002182.) Use the left
and right arrow keys to move among the digits; use the up RANGE key to increment
numbers, and press the down RANGE key to specify alphabetic letters. Confirm the
code by pressing ENTER.
D. Choose N at the prompt to proceed without changing the code, then press ENTER.
Front panel short and open calibration
1. At the start of calibration, the unit will prompt for a front panel short:
FRONT SHORT
2. Connect the Model 2188 low-thermal shorting plug to the instrument front panel input
jack, as shown in Figure 2-1. Wait at least three minutes before proceeding to allow for
thermal equilibrium.
Figure 2-1
Low-thermal short connections
NOTE Keep drafts away from low-thermal connections to avoid thermal drift, which could
affect calibration accuracy.
3. Press ENTER to start short-circuit calibration. While the unit is calibrating, it will
display:
CALIBRATING
2182 NANOVOLTMETER
RANGE
!
CHANNEL 1
SHIFT
LOCAL
POWER
RANGE
SHIFT
CH1REM
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
AUTO
HI
LO
CHANNEL 2
HI
LO
120V MAX
12V MAX
EXIT ENTER
DIGITS RATE
ON/OFFVALUE
TRIG
EX TRIG
STORE
RECALL
DCV1
V
1/V2
MX+B
%
V
1
-V
2
DCV2
ACAL
FILT REL
TEMP
1
TEMP
2
TYPE
A
OUT
TCOUPL
DELAY
HOLD
RS232
GPIB
STEP SCAN
CAL TEST
OUTPUT
SAVE RESTR
CONFIG HALT
BUFFER
SETUP
LIMITS
2188 Low
Thermal Short
MODEL 2182
L
SYNC
CAT I
350V PEAK ANY
TERMINAL TO CHASSIS
Calibration 2-7
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