CAEN
Electronic Instrumentation
UM2619 – N1419 User Manual
34
4.
Internal Settings
Polarity selection
The output polarity is independently selectable for each channel. Note that the polarity is indicated by two LEDs for
each channel on the front panel.
In order to change the polarity:
•
Wear Antistatic Gloves
•
Switch off the unit
•
Wait for the complete discharge of the capacitors.
•
Lay down the unit, right side up
•
Remove screws 1, 2, 3, 4, 5, 6, see figure (red):
Fig. 56: Side cover removal instructions
•
Lift the side cover gently
•
At this point it is possible to change the channel polarity: refer to the following figure (the blue arrow
indicates diode bridge box placed to configure channel as POSITIVE).
•
During this operation pay attention not to bend the pins, as they are plugged completely in their sockets
