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N1470ET

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

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Features

  • 4 independent channels in 2U NIM module
  • 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 coaxial 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
  • 50 nA Current monitor resolution (with x10 Imon-Zoom: 5 nA)
  • 2.8″ color touch screen display
  • Local and Remote control (USB2.0/Ethernet)
  • Daisy-chain capabilty
  • Software Tools for easy channel management
More info
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Overview

The CAEN Mod. N1470ET provides 4 independent High Voltage channels in a double width NIM mechanics. Each channel can provide a ±8 kV 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. Zoom (x 10) for Imon increases resolution to 5nA.

blank SHV connector

NIM double width, 4 channels for Mod. N1470ET

Consult our connectors reference page for technical information.

Module control can take place either locally thanks to a 2.8″ Touchscreen Graphic color LCD display with a completely redesigned user interface or remotely, via USB 2.0 or Ethernet. A complete set of Software Tools is available to control these units; the user can freely download low level libraries, LabVIEW driver and Graphical application software.

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:

Available Options:

  • A1480 DC Input Power Equalizer.

Technical Specifications

Packaging

Double width NIM mechanics. Weight: ~2.6 kg

Output channels

4 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

Iset / Imon Resolution

50 nA (IMonRange = High)
5 nA (IMonRange = 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. 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. 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 (IMonRange = High)
±2% of read value ±200 nA (IMonRange = Low) – Imon Zoom Active

Iset vs. Iout Accuracy

±2% of read value ±2 µA (IMonRange = High)
±2% of read value ±200 nA (IMonRange = 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

HV Cables
High Voltage Cable Assemblies
A1480
DC Power Input Equalizer for N14XX Family

Ordering Options

Code Description
WN1470ETXAAA N1470ET - 4 Channel 8kV/3mA (9W) NIM HV Power Supply Module with Ethernet & 2.8" Touchscreen   RoHS

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