- Input Power: 600 VA maximum
- Output air cooling: 220 W
- Operating Temperature; 0 to +40 *C
- Weight: 10.7 kg
The Varian Turbo-V 700HT series controllers are microprocessor controlled, solid-state, frequency converters with selfdiagnostic and self-protection features. The controllers drive the Turbo-V 550 turbo pump during the starting phase by controlling the voltage and current respect to the speed reached by the pump. They incorporate all the facilities required for the automatic operation of the Turbo-V 700 pump series.
Remote start/stop, pump status signals, forepump start/stop, interlock control (for pressure switch, water flow switch, etc.) capability, are provided via auxiliary connectors.
The Varian V 700HT series controllers are provided with a front panel with an LCD alphanumeric display to indicate the operating conditions/parameters of the Turbo-V pump and a keyboard, and a rear panel with input/output connectors.
The Turbo-V controller can be used as a bench unit or a rack module, but it must be positioned so that free air can flow through the holes. Do not install or use the controller in an environment exposed to atmospheric agents (rain, snow, ice), dust, aggressive gases, or in explosive environments or those with a high fire risk.
The controller is a solid-state frequency converter which is driven by a single chip microcomputer and is composed of:
PCB including: power supply and 3-phase output, analog and input/output section, microprocessor and digital section, display and keyboard circuits. The power supply converts the single phase (50-60 Hz) AC mains supply into a 3-phase, low voltage, medium frequency output which is required to power the Turbo-V pump.
The microcomputer generates the variable output frequency and controls the 3-phase output voltage according to the software and the gas load condition of the pump.
The V 700HT manages signals from sensors, input/output connection information to be displayed, and gives outputs for a fully automatic operation.
An EEPROM internal to the microprocessor is used to store pump operating parameters and the input/output programmed information.
The controller can be operated via:

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Click Here for Varian V 700HT Manual
A&J Vacuum Services offers full repair/service of Varian Pumps, along with all other brands offered on our website. AJVS also services Varian Turbo Pumps. Please contact us for information about our service and repair program or click http://www.ajvs.com/service.php to access our services page. We also offer emergency service upon request. For more information, please email A&J Vacuum Services at info@ajvs.com or call (973) 249-0854. Thank you for choosing AJVS as your supplier.

Click Here for Varian V 700HT Manual
A&J Vacuum Services offers full repair/service of Varian Pumps, along with all other brands offered on our website. AJVS also services Varian Turbo Pumps. Please contact us for information about our service and repair program or click http://www.ajvs.com/service.php to access our services page. We also offer emergency service upon request. For more information, please email A&J Vacuum Services at info@ajvs.com or call (973) 249-0854. Thank you for choosing AJVS as your supplier.
We can have a repair estimate ready for your equipment within the hour of submission.
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A&J Vacuum Services provides repairs on all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair and Mass Spectrometer repair. Our highly trained technicians will deliver the highest quality service and satisfaction.
We operate at our own full service repair facility which allows us to quickly and economically perform all repairs in a timely manner. Our advandced machinery enables us to handle all facets of the service and repair process. AJVS utilizes industry standard vibration analysis equipment and advanced testing equipment to troubleshoot and minimize all equipment failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.