Varian Auto-test 948 Leak Detector

US $5,499.98

  • Bloomfield, Connecticut, United States
  • Jan 30th
Varian Auto-Test 948 Leak Detector. The unit powers up and seems to function properly. Below is some information on the unit that was located on the web:   This Varian 948 series leak detector has been specifically designed for high productivity testing environments. This unit allows single button pass/fail test cycling and fully automatic spectrometer tuning and calibration. The Contra-Flow vacuum system arrangement in these machines uses a valve manifold that has been specially designed for fast cycle times and the maximum possible reliability. In addition to the clear, front panel LED leak rate, pressure, and machine condition displays, information is also available on analog, parallel I/O, and RS-232 remote interfaces. While the 948 leak detector provides high sensitivity for detecting small leaks, it can leak test to 10 atm-cc/sec. An atmospheric gross leak option allows searching for helium leaks with test port pressures as high as 760 Torr. Features Benefits Fully automatic operation and spectrometer tuning One button Pass/Fail testing Easily customized pumpdown and test cycles Fully protected from the possibility of operator errors, air inrushes, and power failures Protected from the possibility of operator errors, air inrushes, and power failures Operator skill not requirement for spectrometer tuning, calibration, and zeroing Specially-designed high conductance valve manifold Reduces pumpdown times for faster test cycling Proven reliability to over one million cycles No additional utility requirements Displays leaks from 10 to 2 x 10-10 atm cc/sec Measures 10-10 range leaks without liquid N2 Optional atmospheric and non-helium gross leak capability Large leaks can be detected before high vacuum pumpdown, with or without presence of helium tracer Parallel I/O and RS-232 remote interfaces available Unit can be remotely controlled and provide complete real time testing data Liquid Nitrogen Cold Trap The cold trap enhances the cleanliness of the test port. Diffusion-pumped version Low cost with diffusion pump Sensitivity:  2 x 10-10 atm cc/sec (helium),       4x1011 atm cc/sec (air) Response Time:  Less than two seconds for helium, in accordance with AVS standard 2.1 Amplifier Drift:  Less than 2% of the full scale of the most sensitive range, in accordance with AVS standard 2.1 Noise Level:  Less than 2% of full scale, peak-to-peak, in accordance with AVS standard 2.1 Leak Indication:  A 50-segment bar graph indicator displays leak rates from 10 to 1 x 10-10 atm cc/sec automatically. The manual mode can also be used for any decade scale. A leak can also trigger an audible alarm whose frequency varies in proportion to the size of the leak. Spectrometer Tube:  The preamplifier is computer optimized, temperature stabilized, and solid state. Programmed warm up minimizes start-up time. The tube is kept at a constant temperature at all times to maintain stability. The ion source has dual filaments of long-life, thoria-coated iridium. Cycle Time:  Blanked port can be cycled to fine leak test in 6 seconds, and gross leak test in 3 seconds. The auto sequencer option provides clear accept/reject signals and allows programming the roughing, testing, and cycling times. High Vacuum Pump:  90 l/s diffusion pump Rough Pump:  7 cfm (11.9 m3/hr) direct-drive mechanical pump. Fore Pump: 7 cfm (11.9 m3/hr) direct-drive mechanical pump Automatic Valve Sequencing:  Microprocessor-controlled valve operation for automatic system cycling. The test and roughing valves are vacuum-actuated, requiring no air supply. Automatic shutdown Is achieved with one switch function. Test Port:  1 1/8 inch (28 mm) ID quick coupling type Power Requirements:  115 V and 230 V, 50/60 Hz, (30/15 amps) Cabinet:  The front panel is removable to allow easy access to all components. Electronics are accessed from hinged turret door and removable back panel. Cabinet is caster-mounted for mobility. Weight:  435 lb (198 kg) approx. net;   510 lb (232 kg) approx. shipping     Please feel free to email with any questions that you may have, and I will do my best to try to help. Please give us a call at 860-242-4953 to discuss payment options. All duties and customs fees to paid by bidder. We do accept personal checks, bank checks, company checks, and bank wire transfers. SHIPPING POLICY: We sell sensitive test and measurement equipment here on Ebay.  We strive for 5-star service, so we invest a great deal of time and care to package all of our items safely for shipment.  This attention to detail means it may take up to 10 days for us to prepare and ship your units out of our facility. We want to support you throughout the transaction and want you to be satisfied, so please to contact us at 860-242-4953 with any questions or concerns.  We do out best to ship quickly, but never at the expense of quality delivery. RETURN POLICY: This unit is being sold as-is. The auction description is written as a guide, we strongly recommened that you come view and test the units at our facility. Feel free to give us a call at 860-242-4953, and we will help answer any questions that you may have, before you purchase an item. We do not accept returns so please call with any questions that you have BEFORE you bid.  
Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...
Brand Varian
Model 948

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