Table; Limits For Coulombs Verification - Keithley 6517 Service Manual

Performance Verification
Model 6517 Electrometer
WARNING: WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY. NO INTERNAL OPERATOR SERVICABLE PARTS,SERVICE BY QUALIFIED PERSONNEL ONLY.
LO
PREAMP OUT COMMON 2V ANALOG
!
250 PEAK OUTPUT
INPUT
250V PEAK 750V
PEAK
HUMIDITY
TEMP
EXT TRIG
TYPE K
OPTION SLOT
CAUTION: CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING. FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE FUSE WITH SAME TYPE AND RATING.
Charge Filter
Triax Cable
Figure 1-4
Connections for coulombs verification

Table 1-8

Limits for coulombs verification
6517A Standard
range capacitor
2nC
20nC
200nC
2µC 100nF
1
Nominal value of capacitor in calibration unit.
2
DC voltage applied by calibrator (nominal value)
3
Actual voltage: V=Q/C.
1-10
1010V
PEAK
HI MADE
SELECTED
IN
LINE VOLTAGE
U.S.A.
90-110V 180-220V
V SOURCE
105-125V 210-250V
LINE RATING LINE FUSE
50-60HZ SLOWBLOW
50VA MAX 1/2A 90-125V
AC ONLY
1/4A 180-250V
MTR COMP
IN OUT
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
RS232
DIGITAL TRIG LINK
I/O
!
INTERLOCK
Low-noise
Coax Cable
100GΩ
OUTPUT
1nF
100nF
Model 5156 Electrometer Calibration Standard
Nominal
voltage
1 2
value Charge
1nF 1.90000V
1nF 19.0000V
1nF 190.000V 190nC
19.0000V
Connect Cable
Shield to
Output LO
10GΩ
Note: Connect voltage calibrator
1GΩ
!
100MΩ
Actual
3
voltage
1.9nC _________ V
19nC _________ V
_________ V
1.9µC _________ V
DC Voltage Calibrator
to appropriate capacitor
Be sure shield to Chassis
link is connected.
Reading limits
(1 year, 18° to 28°C)
1.89235 to 1.90765nC
18.9235 to 19.0765nC
189.235 to 190.765nC
1.89235 to 1.90765µC