B-10 Frequently Asked Questions
Series 2600 System SourceMeters User’s Manual
2600S-900-01 Rev. A / May 2006
Figure B-3
Stacking channels for higher voltage
NOTE
Each stacked channel adds approximately 100
μ
A of
common mode current that is seen by the channels below it.
Therefore, in the example above, Model 2602-1 Chan A will
measure approximately 100
μ
A x 3 = 300
μ
A higher than
Model 2602-2 Chan B. Similarly, Model 2602-1 Chan B will
measure approximately 100
μ
A x 2 = 200
μ
A higher than
Model 2602-2 Chan B. The most accurate measurement of
actual current flowing through the DUT will be obtained from
Model 2602-2 Chan B.
Hi
Lo
+
40.4V
Max
Hi
Lo
+
40.4V
Max
Chan B
Chan A
Model 2602-2
Hi
Lo
+
40.4V
Max
Hi
Lo
+
40.4V
Max
Chan B
Chan A
Model 2602-1
Chassis Earth Ground
DUT
161.6V
Max
Output low
connected
to chassis
Safety
Earth
Ground
Safety
Shield
Each Model 2602 chassis is connected to
chassis earth ground through the power cord.
WARNING
Connect metal safety shield
to Safety Earth Ground using
#18 AWG or larger wire.
Note
On the Model 2602-1, connect Channel A
LO to the Chassis at the rear panel.
LOs for the other channels must be
isolated from Chassis.
