Specifications

E3631A and E3632A: Output 'OFF' State
Question: What is the voltage/current level when the 3631A is in the output off state?
Answer:
The answer to this question varies depending on the firmware version installed in the power supply. The
firmware revision can be viewed by using the "*IDN?" command. The query returns in the format
:
"HEWLETT-PACKARD,E3631A,0,1.1-X.X-X.X" (1.1 is the firmware revision)
For units with firmware revision 1.4 or less in the output off state, values of less than 0.6 V of opposite polarity with
no load or less than 60 mA of opposite direction with a short circuit may appear at the output. To get zero volts, the
power supply must be programmed to zero volts.
For units with firmware revisions greater than 1.4 in the output off state, the power supply will output values of
voltage and current of zero (within the programming accuracy specification of the DC Power Supply).