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N1470

4 Ch Reversible 8 kV/3 mA (8 W) NIM HV Power Supply Module (USB)

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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
More info
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Overview

The CAEN 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.

Shv SHV connector

NIM single width, 4 channels for Mod. N1470, N1470B (1 Ch), N1470A, N1470AL, N1470AR (2 Ch)

Consult our connectors reference page for technical information.

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 5 nA.

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 allows the module to perform as a current generator and includes:

Overvoltage and Undervoltage warning when the output voltage differs from the programmed value by more than 2% of set value (minimum 10V).
Overcurrent detection when a channel attempts to exceed the programmed current limit, it signalled to be in “overcurrent” and enter in a TRIP status. The output voltage is varied to keep the current below the programmed limit for a programmable TRIP time, then the channel is switched off. If TRIP is set to “constant current mode”, the channel behaves like a current generator.
VMAX
 programmable VMAX protection limit.
Safety Board Interlock 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 NIM8301 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; weight 1.3kg

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/200 µA. Typical: 20 mVpp / Maximum: 25 mVpp
  • 3kV/3 mA. Typical: 20 mVpp / Maximum: 30 mVpp
  • 8kV/800 µA. Typical: 25 mVpp / Maximum: 30 mVpp
 1 ÷ 20000 kHz

  • 3kV/200 µA. Typical: 5 mVpp / Maximum: 10 mVpp
  • 3kV/3 mA. Typical: 5 mVpp / Maximum: 10 mVpp
  • 8kV/800 µA. 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)

Compare

Compare with NIM High Voltage Power Supplies.

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Accessories

A1481
Kill Signal Adapter for N14XX series
A148x
Inhibit - Kill Signal BNC Adapter for HV Power Supply Modules
HV Cables
High Voltage Cable Assemblies
A1480
DC Power Input Equalizer for N14XX Family

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

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