Description
HV1000 is a stabilised high voltage supply ranging 0-1000V (optionally 0-2kV/3kV / 4kV/5kV) with current limiting, indication of output current and voltage, and current limiting status indicator (LED, relay).
Power Supply and Start
The device is fed by +24V (± 10%) DC power supply. After connecting the supply voltage the device is switched on automatically (indicator lights are in operation etc.); high voltage (HV) is present on the output terminals only if the START button is in the switched-on position (locking button). This allows operating the device in “instant” HV supply mode or in manual mode with HV supply switched on and off. Externally, the device may be switched on (as an option to using the START button) by closing a contact between the START and +5V terminals).
Current Limiting Feature
Current limiting status is detected and indicated by the device in two possible ways:
Option A (manufacturer setup)
Relay operates in a temporary mode, i.e. when current limiting is in use or not used relay contacts RLC —- RL1 or RLC — RL2 close or open, respectively. At the same time REL indicator lights up and voltage appears (+24V against GND) on terminal P (disappearing from terminal N at the same time). After the current limiting is no longer used all the above described outputs return to their state as before the current limiting. AUX indicator lights on and remains lighted even after current limiting. This serves as a long-term indication of the fact that current limiting had been used (the feature can be used for instance for long-term observation etc.). AUX can be turned off by pressing the RES button (or it can be turned off externally by closing a contact between the RES and +5V terminals).
Option B (internal setup needs to be changed – jumper). This option is opposite to the previous one, i.e.:
Relay operates in a permanent mode, i.e. when current limit is in operation or out of operation relay contacts RLC —- RL1 or RLC — RL2 close or open, respectively. At the same time REL indicator lights up and voltage appears (+24V against GND) on terminal P (disappearing from terminal N at the same time). After the current limit is no longer in operation, the relay remains closed until it is reset by pushing a button or by applying external signal. AUX indicator lights up only when current limiting is in use and switches off immediately after the current limiting is no longer in use.
Parameters
|
Input power voltage |
24V DC |
|
Input current (no load) |
200 mA @ 24V |
|
Output voltage |
0 to 1000 V DC (optionally 2 , 3, 4, 5kV) |
|
Output current |
0 to 2000 mA DC |
|
Current limit |
0 to 2000 mA DC |
|
Output voltage resolution |
1V |
|
Output current resolution |
1 µA |
|
Current limit resolution |
1mA |
|
Standard output voltage accuracy |
0,5% |
|
Standard output current accuracy |
0,5% |
|
Standard current limit accuracy |
0,5% |
|
Ripple |
< 0,3 % |
|
Current limit characteristic time |
< 200 ms |
|
Current limit indication overtime |
5s |
|
High voltage start-up time |
3s |
|
High voltage shut-down time |
< 0,4 s |
|
Currrent rating for indication relay |
1A |
|
LED display |
output voltage/current /current limit |
|
Input START |
TTL and/or contacts |
|
Input RES (reset) |
TTL and/or contacts |
|
Relay for current limit state |
contacts NO (RLC – RL1) |
