Research Unit Digital Instrument RUDI-EA2
Novel, modular high voltage power supply for photoemission and other demanding research applications.
Manufacturer
Prevac
Prevac are a world leader in the design and production of analytical and deposit scientific and research equipment. Their systems operate in a high and ultra high vacuum environment. They design and construct UHV and HV systems fully adapted to the individual requirements of research projects and industrial applications.
Key Features
- Special techniques have been used to achieve rapid temperature stabilization. The system is ready for use after only 3 minutes from switch on
- Each independent voltage module achieves temperature stability below 0.5 ppm of the voltage span per degree Celcius
- Using 16bit AD converters, the 6 kV power supplies can be set with a resolution of just 92 mV and with a maximum noise level of only 200 µVp-p
- Each modules can be controlled independently via MODBUS-TCP 460 Kbit/s wire interface
- Each module has a floating output which means a wide range of configurations are possible making the unit truly universal – serial configuration is unlimited
- Any other voltages up to 6000 V available on request
- High linearity controlled with an accuracy of 16 bits
- Up to 28 modules fit into 9U rack
- Voltage deviation calculated with two-point calibration at min and max voltage
Description
The electronics features fully calibrated, independently operating modules utilising the very latest electronics and software technology. Voltage supplies are controlled by high precision 16-bit digital-to-analogue converters with high linearity and extremely high temperature stability. Automatic low and high voltage range settings, as well as output polarity, are under full user control.
The combined high specification and system flexibility makes RUDI-EA2 the obvious choice for many analysis applications, where stable, high voltage supplies are required and can also be readily configured by the end user.
Each RUDI-EA2 unit is supplied with a comprehensive serial communication protocol description which can be easily implemented for individual control needs, thus removing the reliance on specific, often prohibitive supplier software.
As the demand for smarter, connected technologies increases, PREVAC provides the best in class electronic solutions. The electronic mainboard of the RUDI-EA2 system is a showcase for the best in active digital and analogue electronic components currently on the market.
Technical data
| Supply voltage | 110-260 V 50/60 Hz, max. 200 VA, depends on modules number | |
| Maximum number of modules in 9U rack | 28 of all modules chosen from DAC and HV | |
| High voltage modules | Different version up to 6 kV, bipolar, floating output | |
| DAC modules | High precision 16 bit +/-12.5 V | |
| Insulation | All HV and DAC modules have full insulation 6 kV to power and ground | |
| Temperature stability | < 0.5 ppm/°C for all modules | |
| External interlock | Active when the contact is closed | |
| Communication interface | MODBUS-TCP 460 Kbit/s | |
| Rack dimensions | 483 x 395 x 360 mm (W x H x D), rack 9U height, 84Hp width | |
| Weight (approx.) | 18 kg (for ~20 modules) | |
| High voltage modules | ||
| Modules | Output voltage | Maximum output current |
| HV 100V | ~0 – 100 V, 16 bit, step size ~1.6 mV | ~600 µA |
| HV 600V | ~0 – 600 V, 16 bit, step size ~9.2 mV | ~300 µA |
| HV 600/100V | Low range ~0 – 100 V, 16 bit, step size ~1.6 mV High range ~0 – 600 V, 16 bit, step size ~9.2 mV |
~300 µA |
| HV 1900/100V | Low range ~0 – 100 V, 16 bit, step size ~1.6 mV High range ~0 – 1900 V, 16 bit, step size ~23 mV |
~200 µA |
| HV 2200V | ~0 – 2200 V, 16 bit, step size ~34 mV | ~150 µA |
| HV 4000V | ~0 – 4000 V, 16 bit, step size ~61 mV | ~100 µA |
| HV 6000/600V | Low range ~0 – 600 V, 16 bit, step size ~9.2 mV High range ~0 – 6000 V, 16 bit, step size ~92 mV |
~100 µA |
| DAC modules | ||
| Output voltage | 0… +/- 12.5 V | |
| Precision | 16 bit | |
| Step size | 200 µV | |
| Protection | Surge protection 23 kV |
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Your metrology instrumentation is a major investment that is critical to your business operation and success. In today’s competitive climate, it is more important than ever to extend the functionality and peak performance of your metrology equipment years beyond the expiration of your factory warranty. CN Tech’s Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.
With over 20 years’ experience servicing and repairing you can be assured that your system is in safe hands. The independent services we offer include system relocation, maintenance visits, parts and consumables, and break down interventions.
CN Tech’s Support Programs are an economical way to guarantee optimal working condition:
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- Priority Technical Assistance
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- No surprise repair expense and much more!
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Metrology & Instrumentation Annual Support Programs 2024/25
CN Tech's Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.