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: [email protected]
Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23
http://www.iseg-hv.de
Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg / Rossendorf
1
4
Front panel operation
HIGH VOLTAGE POWER SUPPLY
VOLTAGE
CURRENT
ON
OFF
KILL
ESC
LOCAL
MENU
POWER
HV
KILL
ENABLE
REMOTE
ERROR
RxD
TxD
CV
CC
iseg
HPp 10 807
1kV / 800mA
VOLTAGE
CURRENT
HV OUT
0 V
1.000kV
800.0mA
1
O
Picture:
HPS/LPS front panel.
Optional and if V
NOM
> 7 kV:
connections on the rear
After pushing the POWER button the device is booting. During boot, the integrated hardware is initial-
ised. After start-up the device is working in LOCAL mode and the KILL function is “disable”.
In LOCAL mode, the set values for voltage and current can be adjusted with the rotary encoders
VOLTAGE for V
SET
and CURRENT for I
SET
. The yellow LEDs VOLTAGE and CURRENT are lighting.
When trying to set V
SET
or I
SET
beyond the adjusted limit, the corresponding LED is flashing for one
second.
Generation of high voltages starts by pushing the ON/OFF button. While generating high voltage, the
green LED “HV” is lighting.
Caution! The high voltage which has been selected with the rotary encoders is going to
ramp to the chosen voltage with the programmed ramp speed!
Factory setting for ramp speed is 0.2
•
••
•
V
NOM
per second.
By pressing ON/OFF again, the high voltage generation is turned off, the green LED “HV” goes off.
The high voltage is ramped down with the programmed ramp speed.
4.1 Displays
The device has two eight digit displays for voltage and current as well as for Menu control.
In HV-OFF state, the set values are shown on display for easy changes with the rotary encoders
VOLTAGE and CURRENT. These set values are stored in processor’s EEPROM and reloaded at
next start-up.
While displaying the set values for voltage and current, a small ’s’ is flashing at the left display side:
s1.000kV
s800.0mA
Picture:
Set values on display in HV-OFF state
In HV-ON state the measured values of voltage and current are displayed:
0.995kV
752.3mA
Picture:
Measured values on displays in HV-ON state
By pressing the rotary encoder VOLTAGE or CURRENT in HV-ON state, the corresponding set value
is displayed for a short time to allow exact adjustment.
If the set values aren’t changed, the device shows the measured values again after four seconds. By
pressing the corresponding rotary encoder again, this delay can be shortened.
After turning high voltage off, the displays show the measured values while ramping down. After four
seconds an with measured voltage lower than 60 V, the device shows the set values again.
