Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 2: General operation
2657A-901-01 Rev. B/December 2012 2-61
Figure 20: Connections for noise shield, safety shield, and guarding
Metal noise
shield
LINE RATING
100-240
V
AC
50, 60 Hz
350 V
A
MAX.
LINE FUSE
SLOWBLOW
5.0
A, 250 V
NO INTERNAL
OPERA
T
OR SERVICEABLE P
A
RTS,
SER
VICE B
Y
QUALIFIED PERSONNE
L ON
LY
.
REPLACE FUSE WITH SAME
TYPE
AND R
A
TING.
WARNING:
INPUT/OUTPUT CURRENT: 120 mA MAX.
RS-232
DIGI
T
AL I/O
LAN
!
IEEE-488
!
!
SENSE
LO
HI
LO
GUARD
SENSE
HI
LO
3030 VDC
MAX.
250 V
MAX.
DIGITAL I/O
Test fixture
interlock
switch
connection
HI LO
DIGITAL I/O
!
SENSE
LO
HI
LO
GUARD
SENSE
HI
LO
3030 VDC
MAX.
250 V
MAX.
Model 2657A
DIGITAL I/O
1
14
13
25
4 ***
1
7
4 ***
3
6
7
Guard**
LO*
HI
3
2
2
* LO connected to
metal noise shield
** Guard connected
to
metal guard shield
*** Additional connections
for redundant protective
earth (safety ground)
may be required
6
5
5
Ground symbols
Chassis
Protective earth
(safety ground)
DUT
>1 GΩ
NC
Metal guard
shield
1
+5 VDC

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English