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LTS 670

Product catalog summary

Overview
The LTS 670 Leakage Test System is designed to test hollow objects for leaks using overpressure or vacuum. It supports both relative-pressure and differential-pressure methods and can be operated manually or via external control signals.

Basic Functions

64 test programs available.
Displays measured values on an LCD in various formats.
Multilingual textual help for parameter settings.
Password protection for parameter changes.
Permanent self-test with measurement signal monitoring.
Serial interface for data output to documentation systems or printers.
Manual or external signal-controlled test processes.
Comprehensive testing and diagnostic functions.
Statistical functions for test results.

Testing Methods

Relative-pressure method: Involves filling the test specimen with a predetermined pressure, sealing it, and measuring pressure differences to detect leaks.
Differential-pressure method: Involves filling both the test specimen and a reference volume with equal pressure, sealing them, and measuring pressure differences to detect leaks.

Test Procedure

Select or enter test program parameters.
Start test via front panel or external signal.
Steps include pre-filling, filling, stabilization, testing, and evaluation.
Test results are indicated by LEDs: Red for "NOK" and Green for "OK".
Test can be interrupted or terminated using the "Stop" button.

Interfaces

Inputs and outputs for external control include start, stop, test program bits, and test results.
Serial interface transmits test results, measured values, and test program data.

Statistics

Displays total number of tests, percentage of "NOK" and "OK" results, and detailed statistics on fine and rough leaks.

Technical Data

Electrical supply: 230 V, 50 Hz.
Pneumatic supply: Clean pressurized air, max. 7 bar.
Adjustable times for filling, stabilization, testing, and emptying: 0.0 to 3,000.0 seconds.
Pressure ranges: -1 to 10 bar.
Measuring ranges: Relative-pressure resolution 1/20000, differential-pressure resolution 0.2 Pa.
Designs: Desk top housing IP40, with dimensions and separate slots for electrical and pneumatic parts.

Available Options

Externally selectable test connections.
Test start via external switch.
Enforced voltage supply.
Test and calibration aids.
Special protocol for serial interface.

Catalog excerpts

Technical Information page 1 dr.wiesner stELierungstEchnik Basic functions The LTS 670 leakage test system can be used to check hollow objects for leaks with overpressure or vacuum. The device comes equipped with a desk top housing and can be controlled manually or using external control signals. The LTS 670 leakage test system is suitable for the relative-pressure method or the differential-pressure method 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 in different languages - 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

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Technical Information page 2 dr.wiesner stELierungstEchnik Testing Testing method The device operates according to the relative-pressure method or the differential-pressure method. Relative-pressure method: Applying this method, the test specimen is filled with a predetermined pressure. After the filling time has elapsed, the test volume is sealed off. Following a stabilization time, during which temperature equalization takes place between the test specimen, testing equipment and test medium, actual testing commences. If the test specimen is leak, the pressure in the test volume will begin to...

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Technical Information page 3 dr.uriesner Statistics Interface to external control The plug of the electrical part of the standard test device is assigned as follows: Inputs: Start The statistics menu shows the following information: Number Number Number Percent Percent Percent 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 NOK total Fine leak Rough/Wrong Number Number Number Percent Percent Percent OK results minimum maximum mean value Value Value Value Ready Test running Pause Test result OK Test result NOK...

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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. Available options - two externally selectable test connections - Test start via external switch - Enforced voltage supply - Test and calibration aids - Special protocol for serial interface Adjustable times: Filling time: 0.0 Available pressure ranges: -1 ... 0 bar Measuring ranges: relative-pressure test: like pressure...

Open the catalog to page 4

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