Leakage testing device LTS 670L Basic Functions The leakage testing device LTS 670L can be used for testing leakage on hollow bodies of all kinds, applying either compressed air or vacuum. Assuming the form of a desktop unit it is operated either manually or optionally via external control signals . Designed on one specific test method, it incorporates the following features: - Test-result indication of „good“ and „reject“ results catered for by clearly visible indicator lamps, - Measurement-value indication during four time-based test steps, - numerical indication of the test steps, - Constant self-testing through monitoring of measurement recording signals, - Serial Interface for outputting test results on an inline printer or PC, - Test-run sequence controllable either manually or via external signals (option), - Diagnostic functions, - One test program with adjustable limits and step times. Technical Data Energy Supply: electrical: U = 110 - 240 V, 47 - 60 Hz pneumatic: clean compressed air, min 1 bar above test pressure, max. 7 bar or vacuum Test Pressure and Range of Measurement: corresponding to installed pneumatic module Resolution of Measurement: 1 / 20 000 of sensor range of measurement Adjustable Times: filling time 0,05 ... 999,95 sec Designs: Desktop housing IP 40 - V2 19“, 6U high 235mm x 266mm x 326mm (W x H x D) or - 19“, 3U high 450mm x 140mm x 326mm (W x H x D) Energy supply ports, serial interface, I/O interface and power switch at the backside. Available Optional Features Digital inputs and outputs to a master control Strengthened power supply, Programming pin for protection of the stored data against unauthorized parameter changing ( not available for Flow Method), Test and calibration tools. Dr. Wiesner Steuerungstechnik GmbH [email protected] www.drwiesner.de

Leakage testing device LTS 670L Test Method The leakage testing device LTS 670L operates (corresponding to the installed pneumatic module) according to the - differential-pressure method or - flow method. Differential-pressure Method Range of measurement ± 20 mbar Available test-pressure ranges: -1 ... 0 bar 0 ... 1 bar 0,5 ... 4 bar 0,5 ... 6 bar 1 ... 10 bar Other ranges of test-pressure available on request The adjustment of the test-pressure is done manually at a high precision pressure regulator. Testing Test Procedure - Start the test by pressing the „Start“ button on the front panel or...

Leakage testing device LTS 670L (Input) (Input) (Output) (Output) Displays during the test-run During the different steps the following informations are shown at the display in the front panel. During the step „Filling“: The step counter display is set to 1. At the measurement display the filling pressure is shown. During the step ..Stabilization1': The step counter display is set to 2. At the measurement display the stabilization pressure is shown. During the step „Testing“: The step counter display is set to 3. At the measurement display the pressure decay (relative or differential) or the...