1-15
1.11 Temperature verification
Accuracy of the Model 6517A temperature measurement
function is checked by connecting a thermocouple calibrator
to the Model 6517A and then verifying that the temperature
reading is within required limits.
Table 1-10
Limits for voltage source verification
6517A
programmed
source output
Voltage source output limits
(1 year, 18° to 28°C)
0.000V
25.000V
50.000V
75.000V
100.000V
250.00V
500.00V
750.00V
1000.00V
0.01V to +0.01V
24.9525 to 25.0475
49.915V to 50.085V
74.8775V to 75.1225V
99.84V to 100.16V
249.525V to 250.475V
499.15V to 500.85
748.775V to 751.225V
998.4V to 1001.6V
1. Output limits shown are based only on Model 6517A one-year accu-
racy specifications and do include DMM uncertainty.
2. Repeat procedure for negative output voltages of same magnitude.
Figure 1-9
Connections for voltage source verification
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
INPUT
250V PEAK
!
LINE RATING
50-60HZ
50VA MAX
AC ONLY
LINE FUSE
SLOWBLOW
1/2A 90-125V
1/4A 180-250V
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
DIGITAL
I/O
TRIG LINK
115V
LO
HI
RS232
!
MADE
IN
U.S.A.
PREAMP OUT
250 PEAK
COMMON
2V ANALOG
OUTPUT
TEMP
TYPE K
HUMIDITY
OPTION SLOT
V SOURCE
EXT TRIG
IN
MTR COMP
OUT
INTERLOCK
SELECTED
LINE VOLTAGE
90-110V
105-125V
180-220V
210-250V
1010V
PEAK
750V
PEAK
Model 2001 DMM
Output LO
Model 6517 Electrometer
NEXT
PREV
POWER
DISPLAY
2001 MULTIMETER
DCV
ACV
DCI
ACI
Ω
2
Ω
4
FREQ
TEMP
REL
TRIG
INFO
LOCAL
EXIT
ENTER
RANGE
RANGE
!
F
R
500V
PEAK
FRONT/REAR
2A 250V
AMPS
CAL
STORE RECALL
CHAN
SCAN
FILTER MATH
CONFIG MENU
HI
INPUT
LO
SENSE
Ω
4 WIRE
INPUTS
350V
PEAK
1100V
PEAK
AUTO
Output HI
Input HI
Input LO
Proceed as follows:
1. Connect the type K thermocouple calibrator to the
Model 6517A EXT TEMP jack, as shown in Figure
1-10.
2. Turn on the Model 6517A, and allow a one-hour warm-
up period before making measurements.
3. Enable the Model 6517A external temperature display
with the DISPLAY PREV key.
4. Set the thermocouple calibrator to -25°C, and allow the
temperature reading to settle.
5. Verify that the Model 6517A temperature reading is
within the limits stated in Table 1-11.
6. Repeat steps 6 and 7 for each calibrator temperature set-
ting listed in Table 1-11.
Table 1-11
Reading limits for temperature verification
Calibration
temperature
Temperature reading
limits (1 year, 18° to 28°C)
-25°C
0°C
50°C
100°C
150°C
-26.42°C to -23.58°C
-1.5°C to 1.5°C
48.35°C to 51.65°C
98.2°C to 101.8°C
148.05°C to 151.95°C