— VACUUM INSTRUMENTS M CORPORATION k Leak Detection Solutions Leak Detection Solutions The MD-490S is the Leader among portable tracer gas leak detectors. With a response time less than 0.5 seconds, sensitivity to 10-8 direct reading atm-cc/sec, and the ability to zero-out background, this is the most aggressive portable leak detector in the industry, with advanced features designed specifically for industrial applications. The MD-490S can be integrated with our Smart Charge 5 evacuation and backfill station. GRAPHICAL AND ALPHANUMERIC DISPLAYS -»MAXIMUM PERFORMANCE - SIMPLIFIED SET-UP Air Conditioning and Refrigeration Systems, Automotive Components and Appliances, Medical Products, Food Packaging, Aerospace Components... VACUUM INSTRUMENTS CORPORATION Leak Detection Solutions

Measurement Characteristics • Sensitivity: Smallest detectable helium leak rate 5 x 10-8 atm cc/sec • Measuring Scale: 7 decades • Response Time: less than 0.5 sec • Pressure Measurement: Probe blocked sensor (10-3 Torr) • Turbopump Speed characteristics for high vacuum (10-6 Torr) • Internal Calibrated Gas Leak: ATEO model M05, range is 1.5 x 10-5 to 7.5 x 10-5 atm cc/sec (I50cc DOT rated cylinder, ISO 17025 and NIST traceable) Test Modes • Flow units (cc/sec, oz/yr, Pa m3/s) • Helium sniffing test Flexible Communication format • Option Full duplex RS232 communication • Option Analog outputs...