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NDT1471H

4 Ch Reversible 5.5 kV/20 µA NIM/Desktop HV Power Supply High Accuracy Module (USB/Ethernet/T.screen)

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Features

  • 4 independent channels in 2U NIM module
  • 220 V / 110 V AC plug for desktop operation
  • 5.5 kV / 20 µA output range
  • 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
  • 1 nA Current monitor resolution (with x20 Imon-Zoom: 50 pA)
  • 2.8″ color touch screen display
  • Local and Remote control (USB2.0/Ethernet)
  • Daisy-chain capability
  • Software Tools for easy channel management
More info
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Overview

The CAEN Mod. NDT1471H provides 4 independent High Voltage channels in a double width NIM mechanics. Desktop operation (110/220V AC Powered, needless a NIM crate) is also supported. Each channel can provide a ±5.5 kV max voltage and a 20 µA max current. The output polarity is independently selectable for each channel.

Shv SHV connector

NIM double width, 4 channels for Mod. NDT1471H

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 1 nA Iset/Imon resolution. Zoom for Imon increases resolution to 50 pA.

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 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 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.
VMAX programmable VMAX protection limit.
Safety Board Interlock common Interlock logic for channels enable/disable and individual inputs signal for channel Kill function.

Technical Specifications

Package

Double width NIM mechanics. Weight: ~2.6 kg

Output ranges
5.5 kV / 20 µA (IMonRange = High)
5.5 kV / 2 µA (IMonRange = Low) – Imon Zoom Active
Output channels

4 channels, Common Floating Return, SHV connector Positive or Negative Polarity (requires internal setting)

Max. Ch. Output Power

0.11 W

Vset / Vmon Resolution

100 mV

Iset Resolution

1 nA

Imon Resolution
1 nA
50 pA
(IMonRange = High)
(IMonRange = Low) – Imon Zoom Active
Vmax

0 ÷ 5600 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~5 mA; 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: Typical: 12 mVpp / Maximum: 20 mVpp
  • 1 ÷ 20000 kHz: Typical: 2 mVpp / Maximum: 5 mVpp
Vmon vs. Vout Accuracy

:±0.02% of read value ±2 V

Vset vs. Vout Accuracy

±0.02% of read value ±2 V

Imon vs. Iout Accuracy

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

Iset vs. Iout Accuracy

±2% of read value ±3 nA (IMonRange = High)
±2% of read value ±300 pA (IMonRange = Low) – Imon Zoom Active

Cooling Fan

2 Sunon 60 x 60 x 15 mm; 12V KDE1206PHV1 and 2 Mouser 40x40x20 mm; 12V 1608KL-04W-B50-L00

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 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
A148x
Inhibit - Kill Signal BNC Adapter for HV Power Supply Modules

Ordering Options

Code Description
WNDT1471HAAA NDT1471H - 4Ch NIM/Desktop Programmable High Current Res. HV Power Supply (±5.5kV, 20uA, 1nA res.)   RoHS

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