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RF Generators

RF Generators RFG300-DLU
Digitally Controlled Radio Frequency Generators for Quadrupole Mass Analyzers, 300 W Maximum

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These RF generators were designed to drive quadrupole mass analyzers (QMS). The frequency of the output voltage is fixed according to the customer's specifications.

The controller module of the device controls and monitors the generator and its power supply. Two variable capacitors are available for manual fine-tuning of the frequency and the symmetry.

The frequency can be adjusted manually or automatically. With manual frequency tuning, the device keeps the set frequency constant. The RF amplitude and the DC offset for a specific mass therefore stay constant.

With automatic frequency tuning, the device finds the resonance frequency and automatically adjusts the operating frequency in case of fluctuations caused by external influences such as temperature changes. The device also measures the current operating frequency. Based on this, the RF amplitude and the DC offset can be determined and adjusted.

Technical Data

  • Radio frequency generator with digital control
  • Output frequency: according to customer specifications
    • Available frequencies: 0,110 MHz
    • Calibrated for the quadrupole system
  • Max. output power: ca. 300 W (adjustable via the supply voltage of the power stage)
  • RF outputs: 2 SHV sockets
  • Bias inputs: 2 MHV sockets
  • Control of the RF amplitude: digital with 12 bits
  • RF amplitude measurement: 2 channels with 16 bits each
  • Monitoring:
    • Power supply of the RF power stage
    • Peak voltage of the RF power stage
    • Temperature
  • Fine-tuning of the output frequency and the symmetry: 2 rotary capacitors on the rear panel
  • Remote control: externally via USB/Ethernet or manually via rotary encoder
  • LCD with 128×68 pixels, keypad, and rotary encoder
  • Interlock loop: BNC socket on the rear panel
  • Metallic 19" case, width: 84 HP (428 mm), height: 3 U (132.5 mm), depth: 400 mm
  • Active cooling with fans on the front and rear panels

Example Configurations

  • RFG300-3M-DLU: Output frequency 3 MHz

Download

Modules

Further user manuals, software, and firmware can be downloaded here: RFG-300W-CTRL

Utilities

Further software and drivers can be downloaded here: Serial Windows Utilities

Information on how to open the various file formats can be found here.

Additional Information

Components

RFG-300W-CTRL
Controller module for radio frequency generators for quadrupole analyzers

Shipment Contents

  • High-voltage bipolar power supply RFG300-DLU
  • Line cord (universal IEC mains lead, length 1.8 m)
  • 19" rack mounting hardware (set of 4 screws, caged nuts, and washers)
  • Control and diagnostic software (see above)
  • User manuals (see above)

Accessories

Output cable
Customer-specific output cable with an Amphenol connector MS3102R14S-6S
Coaxial cables
BNC, SHV, MHV, and combinations (BNC cable for the interlock connection)
USB-AB
USB cable, A plug to B plug, various lengths
Interface card
USB 2.0 interface card
Ethernet
  • LAN cable
  • Ethernet switch
(Not part of the shipment, please order separately)