INHIBIT (external signal, TTL, LOW = active)
programmable current trip (serial interface)
Interface RS 232-Interface (Option CAN: CAN-Interface SHQ x→ 4x)
Line voltage AC (V
IN
) 100 V
AC
.-. 240 V
AC
/ 0,7 – 0,4 A max / 50 – 60 Hz
Fuse T 1A L 250V / microfuse 5mm x 20mm, 250V / 1AT
Mains connection matching used socket according IEC 60320 C13 (125V/10A or 250V/16A)
Connectors HV output: V
nom
rsp. Typ/AMP/Tyco SHV-Connector (225059-3)
INHIBIT: V
max
5V/1-pin Lemo-hub (ERN.00.250.CTL)
RS 232/CAN : V
max
+/-20V/9-pin Sub-D connector
Accessories
see Appendix
HV output: Rosenberger SHV coupler 57K101-006N3 assembled on HV cable
INHIBIT: LEMO FFA.00.250.CTA, standard cable 5V
RS 232: custom comercially available RS232 cable, uncrossed, female to male
Temperature ranges Operating: 0 ... +40 °C Storage: -20 ... +60 °C
Desk case Size (W/H/D) : (236/100/320) mm
3
Further environmental conditions equipment is for use in closed environment only, maximum altitude of use
2000m, relative humidity 20% to 90% (no condensation), maximum Polution
degree level 2
Requirements for assembly, location and
mounting
Desk top power supply, backside fan must not be covered (distance of fan to
any object at least 3cm), unit should be placed close to an accessible power
socket in order to be able to pull the mains plug or operate the main switch in
case of emergency
Cleaning instructions Use a soft, dry, lint-free cloth to clean the units exterior. Avoid getting moisture in
any openings. Do not spray any type of liquid directly on the device. Don‘t use
solvents, aerosol sprays or abrasives
Table 1: Specification
The built-in options are marked on the rear side next to the type label.
2 Functional principle
The functional principle is described in the block diagram, Appendix.
2.1 High voltage supply
For the high voltage generation a patented highly efficient resonance converter circuit is used, which provides a sinusoidalvoltage
with low harmonics for the HV-transformer.
For the high voltage rectification high speed HV-diodes are used. A high-voltage switch, connected to the rectifier allows the
selection of the polarity.
The consecutive active HV-filter damps the residual ripple and ensures low ripple and noise values as well as the stability of the
output voltage. A precision voltage divider is integrated into the HV-filter to provide a feedback voltage for the output
voltage control, an additional voltage divider supplies the signal for the maximum voltage monitoring.
A precision control amplifier compares the feedback voltage with the set value given by the DAC (remote control) or the
potentiometer (manual control). Signals for the control of the resonance converter and the stabilizer circuit are derived from the
result of the comparison. The two-stage layout of the control circuit results in an output voltage, stabilized with very high
precision to the set point.
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