— VACUUM INSTRUMENTS ■ CORPORATION t Leak Detection Solutions Leak Detection Solutions The MD-490M is at the heart of VIC's turnkey vacuum mass spectrometer systems which feature ease of service and its adaptability for system use. Our Leak Detection Systems use the most sensitive and accurate leak detection device science has developed -- the helium mass spectrometer. The helium mass spectrometer is at least 1000 times more sensitive than other leak detection methods. V.I.C. Leak Detection has taken the helium mass spectrometer out of the laboratory, where it has served as a research tool for over 30 years, and redesigned it to meet the stringent requirements of ruggedness, reliability and ease of maintenance that are essential in any industrial environment. -»Industry's most sensitive and accurate leak detection -* Reliable -»Rugged with many systems operating for 20 years Easy to maintain -»Fast response time -> Portable Password Protection prevents unauthorized access -»Helium mass spectrometer is a least 1000 times more sensitive than other leak detection methods APPLICATIONS VACUUM INSTRUMENTS CORPORATION Leak Detection Solutions Air Conditioning & Refrigeration Systems, Automotive Components, Appliances

Performance • Sensitivity System Mode, minimum detectable helium leak rate 2.5 x 10-9 atm-cc/sec. Sniffer Mode, minimum detectable helium leak rate 2.5 x 10-7 atm- cc/sec. • Response Time < 1.0 second system mode testing, < 1.5 seconds sniffer mode testing. • Startup Time One button automatic operation. Cold Start-Up, less than 3 minutes. Standby Start-Up, less than 1 minute. Display Leak Rate Range • System Mode Testing: 0-10 Volts output to main PLC. Leak rate configured to systems calibrated gas leak. • Interface Signals: Auto-Zero, Ready, Leak Rate and Fault Signals. • Sniffer Mode Testing:...