Technical Information page 1 dr.wiesner stELierungstEchnik Basic functions The LTS 673 flow test device can be used to check hollow objects for leaks. It was developed as a variant of the leakage testing system LTS 670 and, because of the large nominal width of its valves, it is especially suited for testing parts with very large filling volume and for medium to large admissible leakage rates. The device comes equipped with a desk top housing and can be controlled manually or using external control signals. All device models feature the following basic functions: - 64 test programs - Display of measured values in various formats on the built-in LCD display - Textual help for setting parameters - Password protection against unauthorized change of parameters - Permanent self-test using monitoring of the measurement signal - Serial interface for output of measuring values to a subsequent process data documentation system or a printer - Test process controlled manually or by external signals - Comprehensive testing functions and diagnosis features - Statistical functions Dr. Wiesner Steuerungstechnik GmbH [email protected] www.drwiesner.de

Technical Information page 2 dr.wiesner stELierungstEchnik Testing Testing method The device operates according to the flow metering method. For this method the test piece is filled via a bypass pipe with a large diameter. After the pre-set filling time has passed or the test pressure has been reached, the bypass valve is closed. The air escaping from the test piece is led to a flow sensor. The flow is displayed on the measuring electronics with adjustable limit values. After an adjustable damping period, the measured flow is evaluated. The test result is displayed with one green (OK) or 2 red...

Technical Information page 3 dr.wiesner stELierungstEchnik Statistics The statistics menu shows the following information: Total NOK OK NOK total Flow Rough/Wrong OK results minimum maximum mean value Number Number Number Number Number Number Value Value Value Percent Percent Percent Percent Percent Percent xternal control Interfaces Interface to The plug of the electrical part of the standard test device is assigned as follows: Inputs: Start Stop/Interruption Test program bit 0 Test program bit 1 Test program bit 2 Test program bit 3 Test program bit 4 Test program bit 5 Outputs: Ready Test...

Technical Information page 4 dr.wiesner stELierungstEchnik Technical data Supply: electrical: U = 230 V, 50 Hz pneumatic: clean pressurized air, max. 7 bar Power rating of the outputs: individual maximum 0.5 A total maximum 2.5 A stronger power supply is available upon request. Pressure range: manually adjustable 0 ... 1000 mbar display calibrated at 500 mbar, other calibrations upon request Adjustable times: Filling time: 0.0...3,000.0 sec Available measuring ranges: 0.3...3 l/min 12.5...125 l/min other measuring ranges upon request Measuring accuracy: <±5% of max. Housing: desk top housing...