N1470
4 Ch Reversible 8 kV/3 mA (8 W) NIM HV Power Supply Module (USB)
Features
- 4 independent channels in 1U NIM module (2 & 1 channel versions also available)
- 8 kV / 3mA output range
- Max output power:
- 9 W (<3 kV output)
- 8 W (>3 kV output)
- Channels with individually selectable positive or negative polarity
- SHV output connectors
- Common floating return
- Low Ripple
- Under/over-voltage alert, overcurrent and max. voltage protection
- Interlock logic for board enable and Individual channel kill
- 5 nA Current monitor resolution (with x10 Imon-Zoom: 500 pA)
- Graphic color display
- Local and Remote control (USB2.0/RS485/RS232)
- Daisy-chain capability
- Optional DC Input Power Equalizer
- Software Tools for easy channel management
Overview
The Mod. N1470 provides 4 independent High Voltage channels in a single width NIM mechanics. Two and one channel versions (N1470A and N1470B) are also available. Each channel can provide a ±8kV max voltage, a 3 mA max current and a 9 W max power (8 W max power when output voltage is larger than ±3 kV).The output polarity is independently selectable for each channel.
Channels have common floating return (common return insulated from the crate ground); HV outputs are delivered through SHV connectors.
The HV output Ramp-up and Ramp-down rates may be selected independently for each channel in the range 1÷500 V/s in 1 V/s steps.The module features 50nA Iset/Imon resolution. Features include Imon Zoom, increasing resolution to 5nA.
Power supply control can be performed either locally, assisted by a Graphic color display or remotely, via USB, RS232 or RS485, the latter allowing to build a daisy chain network of modules N14XX. It is also controllable via TCP/IP by the Smart Fan Unit of CAEN NIM8301.
A complete set of free software Tools is available to control this unit: GECO2020 with user friendly GUI and CAEN HV Wrapper library for custom SW development. EPICS and LabVIEW also supported
Safety features include:
- Overvoltage and Undervoltage warning when the output voltage differs from the programmed value by more than 2% of set value (minimum 10V).
- Programmable VMAX protection limit
- Overcurrent detection: if a channel tries to draw a current larger than its programmed limit, it enters TRIP status, keeping the maximum allowed value for a programmable time (TRIP), before being switched off
- Common Interlock logic for channels enable/disable and individual inputs signal for channel Kill function.
Module control can take place either locally, assisted by a Graphic colour display, or remotely, via USB (1) or RS485 (1). It is also controllable via TCP/IP (2) by the Smart Fan Unit of CAEN NIM 8301 crate:
Special versions available:
-
- 2 channels version (N1470A)
- 1 channel version (N1470B)
- 2 channels Low Cost version only locally controllable (N1470AL)
- 2 channels Low Cost version only remotely controllable (N1470AR)
- 4 channels, 2U NIM module with 220/110 Vac plug for desktop operation equipped with 2.8″ Touchscreen, Ethernet and USB interface (NDT1470)
- 4 channels, 2U NIM module equipped with 2.8″ Touchscreen, Ethernet and USB interface (N1470ET)
Available Options:
- A1480 DC Input Power Equalizer.
N14xx modules are provided with a USB VCP interface and can be programmed via PC by connecting the PC USB port with the N14xx USB B-type port; the featured controller (FT232BM chip) requires a driver available on this page or at www.ftdichip.com
Technical Specifications
- Packaging
Single width NIM unit
- Output channels
4 / 2 / 1 channels, Common Floating Return, SHV connector Positive or Negative Polarity (requires internal setting)
- Output ranges
- 8 kV / 3 mA
8 kV / 300 µA(IMonRange = High)
(IMonRange = Low) – Imon Zoom Active
- Max. Ch. Output Power
9 W (Vset < 3 kV)
8 W (Vset > 3 kV)
- Vset Resolution
200 mV
- Vmon Resolution
200 mV
- Iset Resolution
50 nA
- Imon Resolution
50 nA (IMRANGE = High)
5 nA (IMRANGE = Low) – Imon Zoom Active
- Vmax
0 ÷ 8100 V Absolute maximum HV level that the channel is allowed to reach, independently from the preset value Vset. Output voltage cannot exceed the preset value Vmax. The accuracy is 1 % ± 5 V
- Vmax resolution
± 1 V
- Alarm output
Open collector, 100 mA maximum sink current
- Interlock input
LOW: < 1 V; current~5mA; HIGH: 4÷6 V
- Ramp Up/Down
1÷500 Volt/s, 1 Volt/s step
- Trip
- Max. time an “overcurrent” can last (seconds). A channel in “overcurrent” works as a current generator; output voltage varies in order to keep the output current lower than the programmed value.
- “Overcurrent” lasting more than set value (1 to 9999) causes the channel to “trip”.
- Output voltage will drop to zero either at the Ramp-down rate or at the fastest available rate, depending on Power Down setting; in both cases the channel is put in the OFF state.
- Trip range: 0 ÷ 999.9 s; 1000 s = INFINITE. Step = 0.1 s (If trip= INFINITE, “overcurrent” lasts indefinitely).
- Voltage Ripple
20 ÷ 1000 Hz - 3kV/200µA. Typical: 20 mVpp / Maximum: 25 mVpp
- 3kV/3mA. Typical: 20 mVpp / Maximum: 30 mVpp
- 8kV/800µA. Typical: 25 mVpp / Maximum: 30 mVpp
1 ÷ 20000 kHz - 3kV/200µA. Typical: 5 mVpp / Maximum: 10 mVpp
- 3kV/3mA. Typical: 5 mVpp / Maximum: 10 mVpp
- 8kV/800µA. Typical: 10 mVpp / Maximum: 15 mVpp
- Vmon vs. Vout Accuracy
±0.02% of read value ±2V
- Vset vs. Vout Accuracy
±0.02% of read value ±2V
- Imon vs. Iout Accuracy
±2% of read value ±2 µA (IMRANGE = High)
±2% of read value ±200 nA (IMRANGE = Low) – Imon Zoom Active
- Iset vs. Iout Accuracy
±2% of read value ±2 µA (IMRANGE = High)
±2% of read value ±200 nA (IMRANGE = Low) – Imon Zoom Active
- Humidity range
0 ÷ 80%
- Operating temperature
0 ÷ 45°C
- Storage temperature
-10 ÷ 70°C
- Vout / Temperature coefficient
max. 50 ppm / °C
- Imon / Temperature coefficient
max 100 ppm/C°; max 300 ppm/C° with Imon X10 zoom
- Long term stability Vout vs. Vset
± 0.02% (after one week @ constant temperature)

- Documentation
- Software
- Firmware
Manuals
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Ordering Options
Code | Description |
---|---|
WN1470A08AAC | N1470A - 2 Ch NIM Programmable HV Power Supply (±8kV, 3mA, 50nA res.) RoHS |
WN1470ALCLAA | N1470AL - 2 Ch Low Cost NIM Locally Programmable HV Power Supply (±8kV, 3mA, 50nA res.) RoHS |
WN1470ALCRAA | N1470AR - 2 Ch Low Cost NIM Remotely ProgrammableHV Power Supply (±8kV, 3mA, 50nA res.) RoHS |
WN1470B08AAC | N1470B - 1 Ch NIM Programmable HV Power Supply (±8kV, 3mA, 50nA res.) RoHS |
WN1470X08AAC | N1470 - 4 Ch NIM Programmable HV Power Supply (±8kV, 3mA, 50nA res.) RoHS |