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HP Series Precision High Voltage Modules for Mass Spectrometers
Features
- 0.5kV, 1kV, 2.5kV, 5kV, 10kV, 20kV & 30kV
- High stability, low ripple
- High frequency FET oscillator
- Externally programmable or Internal control (option)
- Short circuit and flashover proof
- 24 hour burn in
- Low radiated magnetic field
- Positive, negative & remote reversible versions
Applications
- Photomultiplier tubes
- Mass spectrometers
- Electron microscopes
- Nuclear instruments
- Microchannel plates
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This range of precision high voltage modules has outputs that provide a low ripple, high stability source of high voltage for photomultiplier tubes, electron gun, nuclear and other applications. Control of the output voltage is by internal potentiometer or by an external 10 volt analogue control voltage. The units are pin compatible with the medium stability KS and 100 watt HW ranges.
All units are short circuit proof and use proven linear regulator techniques to drive a high frequency FET oscillator and ferrite high voltage step-up transformer. The power supplies are constructed from conservatively rated components with the reliability further enhanced by information gained over many years of field operation.
Positive, negative, and electrically reversible outputs are available at voltages from 1kV to 30kV. The reversible HPR version has a latched output and can only be changed when the output is set to zero. Please see the HPZ range for zero crossing reversible (bi-polar) units.
Change to HP series and HPR series:
The Internal Potentiometer and Reference, necessary when using internal or external potentiometer Control, are now only fitted as an optional extra. Please request 'Plus Ref' on order.
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Electrical Specification
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UNIT TYPE
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POLARITY
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OUTPUT
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RIPPLE AT FULL LOAD
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SIZE (mm) |
| HP0.5PAA025 |
POSITIVE |
10 volts to 500V at 20mA |
10mV peak to peak |
148x98x47 |
| HP0.5NAA025 |
NEGATIVE |
| HP001PAA025 |
POSITIVE |
10 volts to 1kV at 10mA |
10mV peak to peak |
148x98x47 |
| HP001NAA025 |
NEGATIVE |
| HP2.5PAA025 |
POSITIVE |
10 volts to 2.5kV at 4mA |
10mV peak to peak |
148x98x47 |
| HP2.5NAA025 |
NEGATIVE |
| HP005PAA025 |
POSITIVE |
10 volts to 5kV at 2mA |
20mV peak to peak |
148x98x47 |
| HP005NAA025 |
NEGATIVE |
| HP010PAA025 |
POSITIVE |
20 volts to 10kV at 1mA |
50mV peak to peak |
200x98x47 |
| HP010NAA025 |
NEGATIVE |
| HP015PAA025 |
POSITIVE |
30 volts to 15kV at 0.66mA |
100mV peak to peak |
200x98x47 |
| HP015NAA025 |
NEGATIVE |
| HP020PAA025 |
POSITIVE |
50 volts to 20kV at 0.4mA |
200mV peak to peak |
210x120x60 |
| HP020NAA025 |
NEGATIVE |
| HP030PAA025 |
POSITIVE |
100 volts to 30kV at 0.25mA |
300mV peak to peak |
210x120x60 |
| HP030NAA025 |
NEGATIVE |
| INPUT VOLTAGE: |
+24 volt d.c. +10% at less than 1A. Negative input terminal common to HV earth return. |
| OUTPUT VOLTAGE: |
See table above. |
| LINE REGULATION: |
Less than 10ppm of maximum voltage for input changes of 1 volt. |
| LOAD REGULATION: |
Less than 10ppm for load changes from 100µA to maximum. (Measured at maximum voltage). |
| OVERLOAD PROTECTION: |
Flashover and short circuit proof. Re-entrant current limit. |
| TEMPERATURE COEFFICIENT: |
25ppm/°C or better |
| DRIFT: |
Typically 0.01% per hour measured at constant input voltage, 0.02% per 8 hours load current & ambient temperature after 1 hour warm up. |
| CONTROL: |
10V analogue signal. (0 to +10V gives zero to maximum output, tolerance ±2%). Input impedance >100Kohm. OPTIONAL - INTERNAL or EXTERNAL potentiometer control.
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| READOUT: |
Voltage monitor: 0 to +10V represents zero to maximum output, tolerance ±2% (Source resistance 10k).
Stack Return - Current monitor: OPTION - Note: simple stack return current monitor includes the internally used feedback current.
Precision Current monitor: Option available on all unipolar units, HP020R, and HP030R. Functionality Code 'IP'
0-10V represents zero to maximum output, tolerance ±2%, Offset ±0.1% of FS.
Note - Precision current monitor removes internally used feedback current, buffers and scales the output. |
| OPERATING TEMPERATURE: |
0°C to +50°C |
| STORAGE TEMPERATURE: |
-35°C to +85°C |
| R.F.I.: |
Steel case for low radiated magnetic field. |
| SYNCHRONIZATION: |
Oscillator frequency can be locked to a suitable external frequency. |
Mechanical Specification
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FIXINGS:
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HP001P & N, HP2.5P & N, HP005P & N, HP010P & N, HP015P & N have M4 studs.
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| OUTPUT: |
By 0.5 metre screened cable (HP020, HP030 1 metre). N.B. Reducing the cable length may increase the ripple voltage. |
| INPUT CONNECTOR: |
Molex 10 pin, mating connector supplied. |
| ORDER CODE : series code HP |
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o/p KV
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Polarity
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Options Code
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Temp Co
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0.2=200V
0.5=500V
001=1Kv
2.5=2.5Kv
005=5Kv
010=10Kv
015=15Kv
020=20Kv
030=30Kv
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P= +ve
N= -ve
R=Reversible
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AA = No options
IS = Stack Return Current Monitor
IP = Precision Current Monitor
PR = Pot & Reference fitted
PS = Stack Return Imon + Pot & Reference
PP = Precision Current Monitor + Pot Reference
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025
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eg. +10kV HP series with Stack Return Current Monitor and Pot & Reference fitted : HP010PPS025 |
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