Remote On-Off Control - Extech Instruments 382275 User Manual

Remote Control
Remote control is made possible through the use of the supplied 8‐pin Remote Control
connector and 22AWG wire. The Remote Control feature offers remote adjustment of voltage
and current and output ON/OFF switching.
Remote ON‐OFF Control
The Remote Control ON‐OFF function can be activated in any of the operational modes
(NORMAL, PRESET, REMOTE, and SET). Using the supplied 8‐pin plug and 22AWG wire, follow
the procedures below:
1.
Remove the black portion of the remote control connector plug by removing the
screw as shown.
2.
If PIN 5 is open, the output is ON.
3.
If PIN 5 is shorted to ground (PIN 4) the output is OFF.
4.
When the output is OFF, the C.V. & C.C. LED will flash. The current output voltage
and current setting will show on the panel meter.
5.
The output voltage & current control knob can be used to adjust to the desired
value when the output is off.
Remote Voltage/Current Control
There are two methods (Method A and Method B; see below) for the remote adjustment of
voltage and current. Each method requires that the Current remote control portion be
functional otherwise the unit will be in the CC mode all of the time.
8
1
1 7
2 8
6
3 5
4
382275/6-EU-EN v4.3 3/14