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]
Phone ++ 49 351 / 26 996 - 0
Bautzner Landstr. 23
http://www.iseg-hv.com
Fax
++ 49 351 / 26 996 - 21
D - 01454 Radeberg / Rossendorf
Germany
2
1. General information
The EHQ´s are one channel high voltage supplies in a 3U Eurocard Chassis, 8TE wide. The units offers manual
control and operation via RS232 interface (option: CAN Bus interface instead RS232). The use of the interface
supports more then the manual control functionality.
The high voltage supplies special provide high precision output voltage together with very low ripple and noise,
even under full load. Separate 10%-steps hardware switches put voltage and current limits. An INHIBIT input
protects connected sensitive devices. Additionally, the maximal output current is programmable via the interface.
The high voltage output protected against overload and short circuit. The output polarity can be switched over.
2. Technical data
Type (with RS 232)
EHQ 102M
EHQ 103M
EHQ 104M
EHQ 105M
Output voltage V
O
0 ... 2 kV
0 ... 3 kV
0 ... 4 kV
0 ... 5 kV
Output current I
O 24
0 ... 6 mA
0 ... 4 mA
0 ... 3 mA
0 ... 2 mA
Ripple and noise
< 2 mV
P-P
< 5 mV
P-P
Resolution of current measurement
1 µA; Option 0n1: I
O max
= 100 µA
⇒
100 nA
Resolution of voltage measurement
1 V
Accuracy
current measurement
± (0,05% I
O
+ 0,02% I
O max
+ 1 digit) for one year
voltage measurement
± (0,05% V
O
+ 0,02% V
O max
+ 1 digit) for one year
LCD display
4 digits with sign, switch controlled
- voltage display in [V]
- current display in [µA]
Stability
∆
V
O
(no load / load)
< 5
∗
10
-5
∆
V
O
/V
INPUT
< 5
∗
10
-5
Temperature coefficient
< 5
∗
10
-5
/K
Voltage control
CONTROL switch in position
-manual:
10-turn potentiometer,
-DAC:
control via serial interface
Rate of change of
HV -ON/OFF
500 V/s (hardware ramp)
output voltage
remote control
2 ... 255 V/s (software ramp)
Protection
-separate current and voltage limit
(hardware, rotary switch in10%-steps)
-INHIBIT (external signal, TTL level, Low=active)
-programmable current limit (software)
Power requirement V
INPUT
±
24 V (< 500 mA),
Option:
±
12 V
⇒
I
O 12
= I
O 24
/2
Operating temperature
0 . . . 50 °C
Storage temperature
-20 . . . +60 °C
Packing
3U Euro cassette / 160 mm depth / 40,8 mm wide
Connector
96-pin connector according to DIN 41612
HV connector
SHV-Connector at the front panel
Inhibit connector
1-pin Lemo-hub