Extech Instruments 382270 User Manual

382270 V2.1 5/09
6
Series Connection (Channels 1 and 2, adjustable outputs)
1. Set the tracking switch (20) to the spring out position. Press in tracking switch (23).
2. In Series mode, the slave output will strictly track the master output voltage when the
user turns the master voltage adjust knob (11). The output voltage in Series mode
can be set up to double the maximum voltage available in Independent mode (voltage
between terminals 19 & 26).
3. Ensure that both channels’ negative terminals are NOT connected to case ground. If
they are, a short circuit will occur.
4. When the two outputs are configured in Series, the voltage is controlled by the master
output knob, but the current adjustment for the two outputs is still independent.
Therefore, ensure that the CC adjust knob is rotated fully clockwise to maximum for
the Series circuit to work correctly.
5. The user must physically short the negative terminal of the Master output with the
positive terminal of the Slaved output.
Parallel Connection (Channels 1 and 2 adjustable outputs)
1. Press in both tracking switch (19) and tracking switch (23).
2. In Parallel mode, the two outputs will always be the same for any setting of the master
voltage knob (11). The slave CC indicator (5) will switch on.
3. In Parallel mode the CC adjustment (4) for the slave is not active. The user must adjust
the CC for the master output. The current available in parallel mode is up to twice the
amount available in other modes.
4. The user must short the two positive terminals.
5. The user must also short the two negative terminals.

Extech Instruments 382270 Specifications

General

Brand	Extech Instruments
Model	382270
Category	Power Supply
Language	English