59
Notes applying to both the ET: I(control) and the E: I(control) ports:
Check the polarity of your connections. The arrows in the previous
pictures describe the correct flow of current.
If the loop resistance of the external circuit is too high or infinite, the
message “O.LOAD” is displayed until the load is reasonable.
Warnings!
To avoid damages to MC5-IS' electronics, first select the cor-
rect Quantity and Function/Port. Then connect the circuit in-
cluding the external supply to MC5-IS.
Make sure that you don’t exceed the maximum current allowed
by the instrument under test.
If you open the mA generation loop, MC5-IS tries to maintain
the current by decreasing the internal impedance. If you then
close the loop again, the current is first too high, but returns
quickly to the correct level. If this current peak could damage
the components of the loop, make sure that the loop will not
open or protect it against overcurrent. For the same reason,
always enter 0 mA output before connecting the loop.
Next…
Current Measurement on page 39
Special Generations on page 67
Calibration, see Part D.
Generating/Simulating
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