iseg SHQ 122, Operator'S Manual

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S p e z i a l e l e k t r o n i k G m b H
iseg Spezialelektronik GmbH Email: sales@iseg-hv.de Phone ++ 49 (0)351 / 26 996 – 0
Bautzner Landstr. 23 http://www.iseg-hv.com Fax ++ 49 (0)351 / 26 996 – 21
10 D - 01454 Radeberg / Rossendorf Germany
Before the unit is powered the desired output polarity must be selected by the rotary switch on the rear side. The selected
polarity is displayed by a LED on the front panel and a sign on the LCD.
It is not allowed to change the polarity when channels are switched ON and residual voltage is
present!
If the polarity switch setting is not defined (not at one of the end positions) high voltage cannot be
switched on.
4.2 Power Up and operational conditions
It must be ensured that the air ventilation slots on the top, rear and bottom side of the HV unit are
not covered. A distance of at least 15 mm to other objects must be provided.
The unit is powered up with the mains switch on back panel.
After Power Up the unit is initialised and a brief function test of the hardware is performed. The display will show
manufacturer, serial number, nominal voltage and nominal current.
After a successful function test the unit is in standby mode.
If the HV-ON switch is in position “ON” and CONTROL switch is in upper position
(manual control), at the HV-output on the rear side high voltage is generated according to the set
voltage chosen via the 10-turn potentiometer with a ramp speed of 500 V/s (hardware ramp).
After powering up the device on an AC line voltage of 110 V-AC
±
10% there is a
10 s delay until standby mode!
High voltage output is switched on with HV-ON switch at the front panel. This condition is indicated by the yellow LED above
the switch.
Further control is depending on position of the CONTROL switch.
4.2.1 Manual control (“CONTROL” in upper position)
In the manual control mode the output voltage can be set via 10-turn potentiometer from 0V to the maximum voltage. The
final position of the potentiometer equals maximum output voltage.
If the HV-ON switch is switched into position “ON” and CONTROL switch is in upper position
(manual control), at the HV-output on the rear side high voltage is generated according to the set
voltage chosen via the 10-turn potentiometer with a ramp speed of 500 V/s (hardware ramp).