N1471
4 Ch Reversible 5.5 kV/300 µA NIM HV Power Supply Module (USB)
Highlights
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4 independent channels in 1U NIM module (2 & 1 channel versions also available)
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5.5 kV / 300 µA output range
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Channels with individually selectable positive or negative polarity
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SHV output connectors
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Common floating return
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Low Ripple
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Under/over-voltage alert, overcurrent and max. voltage protection
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Interlock logic for board enable and Individual channel kill
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5 nA Current monitor resolution (with x10 Imon-Zoom: 500 pA)
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Graphic color display
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Local and Remote control (USB2.0/RS485/RS232)
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Daisy-chain capability
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Optional DC Input Power Equalizer
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Software Tools for easy channel management
Overview
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.
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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:
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Overvoltage and Undervoltage warning |
when the output voltage differs from the programmed value by more than 2% of set value (minimum 10V). |
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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. |
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VMAX |
programmable VMAX protection limit. |
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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:
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2 channels version (N1471A)
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1 channel version (N1471B)
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4 channels, 2U NIM module with 220/110 Vac plug for desktop operation, equipped with 2.8″ Touchscreen, Ethernet and USB interface (NDT1471)
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4 channels, 2U NIM module equipped with 2.8″ Touchscreen, Ethernet and USB interface (N1471ET)
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High-resolution models: 20µA max output, Iset/Imon: 1 nA, optional Imon-Zoom: 50 pA (N1471H, NDT1471H and N1471HET)
Available Options:
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A1480 DC Input Power Equalizer.
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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
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Compare
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Image
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Name
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No. of Channels
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Max Output V
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Max Output I
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Vset/Vmon Resolution
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Iset/Imon Resolution
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Max. Ramp Up/Down Rate
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Ripple Typ (>1kHz)
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Connectors
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Max Power per Channel
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Features
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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 |
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N1419 |
4 /2 / 1 |
±500 V |
200 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 |
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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 |
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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 |
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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 |
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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 |
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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 W |
Common Floating Return |
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NDT1419 |
4 |
±500 V |
200 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 |
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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 |
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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 |
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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 |
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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 |
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N1419ET |
4 |
±500 V |
200 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 |
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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 |
Technical Specifications
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Packaging |
Single width NIM unit |
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Output channels |
4 /2 / 1 channels, Common Floating Return, SHV connector Positive or Negative Polarity (requires internal setting) |
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Output ranges |
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Max. Ch. Output Power |
1.65 W |
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Vset / Vmon Resolution |
100 mV |
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Iset Resolution |
5 nA |
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Imon Resolution |
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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 |
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Vmax resolution |
± 1 V |
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Alarm Output |
Open collector, 100 mA maximum sink current |
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Interlock input |
LOW: <1 V; current~5mA; HIGH: 4÷6 V |
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Ramp Up/Down |
1÷500 Volt/s, 1 Volt/s step |
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Trip |
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Voltage Ripple |
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Vmon vs. Vout Accuracy |
±0.02% of read value ±2V |
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Vset vs. Vout Accuracy |
±0.02% of read value ±2V |
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Imon vs. Iout Accuracy |
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Iset vs. Iout Accuracy |
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Humidity range |
0 ÷ 80% |
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Operating temperature |
0 ÷ 45°C |
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Storage temperature |
-10 ÷ 70°C |
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Vout / Temperature coefficient |
max. 50 ppm / °C |
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Imon / Temperature coefficient |
max 100 ppm/C°; max 300 ppm/C° with Imon X10 zoom |
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Long term stability Vout vs. Vset |
± 0.02% (after one week @ constant temperature) |
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