N1471

4 Ch Reversible 5.5 kV/300 µA NIM HV Power Supply Module (USB)

Datasheet

Home Power SupplyVME - NIM Power SuppliesNIM / Up to 15 kV Reversible Polarity N1471

4 independent channels in 1U NIM module (2 & 1 channel versions also available)
5.5 kV / 300 µA output range
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

The CAEN Mod. N1471 provides 4 independent High Voltage channels in a single width NIM mechanics. Two and one channel versions (N1471A and N1471B) are also available. Each channel can provide a ±5.5kV / 300 µA output. 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 1В500 V/s in 1 V/s steps. The module features 5nA Iset/Imon resolution. A Zoom option (x 10) is available for Imon, increasing resolution to 500pA.

SHV connector

NIM single width, 4 channels for Mod. N1471 (2 Ch for N1471A, 1 Ch for N1471B)

Consult our connectors reference page for technical information.

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 NIM 8301 crate:

Special versions available:

2 channels version (N1471A)
1 channel version (N1471B)
4 channels, 2U NIM module with 220/110 Vac plug for desktop operation, equipped with 2.8″ Touchscreen, Ethernet and USB interface (NDT1471)
4 channels, 2U NIM module equipped with 2.8″ Touchscreen, Ethernet and USB interface (N1471ET)
High-resolution models: 20µA max output, Iset/Imon: 1 nA, optional Imon-Zoom: 50 pA (N1471H, NDT1471H and N1471HET)

Available Options:

A1480 DC Input Power Equalizer.
x 10 Imon Zoom, increasing Imon resolution to 500 pA.

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

Ordering Options

Code	Description
WN1471A05AAC	N1471A – 2 Ch NIM Programmable HV Power Supply (±5.5kV, 300µA, 5nA res.)	RoHS
WN1471B05AAC	N1471B – 1 Ch NIM Programmable HV Power Supply (±5.5kV, 300µA, 5nA res.)	RoHS
WN1471X05AAC	N1471 – 4 Ch NIM Programmable HV Power Supply (±5.5kV, 300µA, 5nA res.)	RoHS

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Image	Name	No. of Channels	Max Output V	Max Output I	Vset/Vmon Resolution	Iset/Imon Resolution	Max. Ramp Up/Down Rate	Ripple Typ (>1kHz)	Connectors	Max Power per Channel	Features
	N1471ET	4	±5500 V	300 μA	0.1 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	500 V/s	< 3 mVpp	SHV	1.65 W	Common Floating Return
	N1419	4 /2 / 1	±500 V	20 μA	0.01 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	100 V/s	< 3 mVpp	SHV	0.1 W	Common Floating Return
	N1471	4 /2 / 1	±5500 V	300 μA	0.1 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	500 V/s	< 3 mVpp	SHV	1.65 W	Common Floating Return
	N1470	4 /2 / 1	±8000 V	3 mA	0.2 V	Iset: 50 nA <br>Imon: 50 / 5 nA	500 V/s	< 5-10 mVpp	SHV	9 W (< 3 kV) <br>8 W (> 3 kV)	Common Floating Return<br>N1470AL: local control only<br>N1470AR: remote control only
	N1471HET	4	±5500 V	20 μA	0.1 V	Iset: 1 nA <br>Imon: 1 / 0.05 nA	500 V/s	< 2 mVpp	SHV	110 mW	Common Floating Return
	NDT1471	4	±5500 V	300 μA	0.1 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	500 V/s	< 3 mVpp	SHV	1.65 W	Common Floating Return <br>NIM/Desktop
	N1570	2	±15000 V	1 mA	0.5 V	Iset: 20 nA <br>Imon: 20 / 2 nA	500 V/s	< 4-20 mVpp	HV LEMO	10 mW	Common Floating Return
	NDT1419	4	±500 V	20 μA	0.01 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	100 V/s	< 3 mVpp	SHV	0.1 W	Common Floating Return <br>NIM/Desktop
	NDT1471H	4	±5500 V	20 μA	0.1 V	Iset: 1 nA <br>Imon: 1 / 0.05 nA	500 V/s	< 2 mVpp	SHV	110 mW	Common Floating Return <br>NIM/Desktop
	N1471H	4 /2 / 1	±5500 V	20 μA	0.1 V	Iset: 1 nA <br>Imon: 1 / 0.05 nA	500 V/s	< 2 mVpp	SHV	110 mW	Common Floating Return
	N1470ET	4	±8000 V	3 mA	0.2 V	Iset: 50 nA <br>Imon: 50 / 5 nA	500 V/s	< 5-10 mVpp	SHV	9 W (< 3 kV) <br>8 W (> 3 kV)	Common Floating Return
	NDT1470	4	±8000 V	3 mA	0.2 V	Iset: 50 nA <br>Imon: 50 / 5 nA	500 V/s	< 5-10 mVpp	SHV	9 W (< 3 kV) <br>8 W (> 3 kV)	Common Floating Return NIM/Desktop
	N1419ET	4	±500 V	20 μA	0.01 V	Iset: 5 nA <br>Imon: 5 / 0.5 nA	100 V/s	< 3 mVpp	SHV	0.1 W	Common Floating Return
	N1410	4	±1000 V	200 μA	20 mV	Iset: 5 nA <br>Imon: 5 / 0.5 nA	100 V/s	< 3 mVpp	SHV	200 mW	Common Floating Return


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	5.5 kV / 300 µA (IMRANGE = High) 5.5 kV / 30 µA (IMRANGE = Low) – Imon Zoom Active (optional)
Max. Ch. Output Power	1.65 W
Vset / Vmon Resolution	100 mV
Iset Resolution	5 nA
Imon Resolution	5 nA (IMRANGE = High) 500 pA (IMRANGE = Low) – Imon Zoom Active (optional)
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~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: Typical: 10 mVpp / Maximum: 15 mVpp 1 ÷ 20000 kHz: Typical: 3 mVpp / Maximum: 8 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 ±20 nA (IMRANGE = High) ±2% of read value ±2 nA (IMRANGE = Low) – Imon Zoom Active (optional)
Iset vs. Iout Accuracy	±2% of read value ±30 nA (IMRANGE = High) ±2% of read value ±3 nA (IMRANGE = Low) – Imon Zoom Active (optional)
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)

N1471

4 Ch Reversible 5.5 kV/300 µA NIM HV Power Supply Module (USB)

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N1471ET

N1419

N1471

N1470

N1471HET

NDT1471

N1570

NDT1419

NDT1471H

N1471H

N1470ET

NDT1470

N1419ET

N1410

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N1471

4 Ch Reversible 5.5 kV/300 µA NIM HV Power Supply Module (USB)

Software

CAEN HV Wrapper Library

GECO2020

EPICS IOC (PSM Power Supply Modules)

LabVIEW Driver (PSM – Power Supply Modules)

SW1470

Accessories

A1480

A1481

A148x

HV CABLES

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