Alternate Connecting Methods; Current Measurement Connections - Keithley 2500 User Manual

Model 2500 and 2502 User's Manual

Alternate connecting methods

Although the Model 2500 is designed primarily to bias and measure photodiodes in a laser
diode test system, it can also be used for stand-alone current measurements, or as a stand-
alone voltage source with any suitable device.

Current measurement connections

Figure 2-7
that the INPUT HI terminal (center conductor) is connected to DUT HI, while the INPUT
LO terminal (analog common) is connected to DUT LO.
Figure 2-7
Stand-alone current measurement connections
INPUT HI
(Center Conductor)
DUT
Optional Noise Shield
(Connect to INPUT LO)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
shows typical connections using channel 1 to measure the DUT current. Note
Channel 1 INPUT
Triax Cable
INPUT
CHANNEL 1
INPUT LO
(Inner Shield)
VOLTAGE SOURCE
OUTPUT CHANNEL 1
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS, SERVICE BY QUALIFIED PERSONNEL ONLY.
RATINGS MAX
100V @ 20mA
COMMON
MADE IN
MODE
U.S.A.
200V
INPUT DIGITAL I/O
CHANNEL 2
!
TRIGGER LINK
I LINE RATING
CAT
50, 60Hz
60 VA MAX
RATINGS MAX
100V @ 20mA
FUSE
630 mAT
(SB)
!
315 mAT
VOLTAGE SOURCE
(SB)
OUTPUT CHANNEL 2
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE FUSE WITH SAME TYPE AND RATING
Model 2500
Connections
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
RS-232
LINE
100 VAC
120 VAC
220 VAC
240 VAC
2-9
.