Differential Pressure Leak Tester – TEX-G4-DF


Having a pneumatic circuit fully developed in Brazil and compatible with every available worldwide technology, the G4-DF model is capable of replacing other imported devices with quality and the best cost.

This model uses a differential sensor for comparing variations of pressure between the reference and the part being analyzed. The G4-DF sensor stands peaks of pressure of up to 17bar on any gantry without damaging or losing the setting.

Its pneumatics is innovative, robust, and easy to fix, with valves specifically developed in order to guarantee perfect air-tightness of the test circuit.

It can be purchased in manual or automatic pressure setting versions.


  • Its fully removable pneumatic module, facilitates maintenance/calibration
  • Own valves with air-tightness-oriented technology
  • Access control with NFC technology (RFID tag), with operator/user’s data registered for each test
  • 7”-colordisplay (800 x 480px), industrially robust and sensitive to the touch
  • Pressure automatic electronic setting up to 30Bar
  • Test time auto-parameterization
  • Auto-cleaning and dynamic auto-test
  • Warranted digital calibration with built-in certificate and validity electronic control
  • Ethernet communication interface (Modbus and HTTP) and 2 RS-232 ports (Scanners and printers)
  • USB Flash Disk inlet for the collection of results, backup, and updating, among others
  • Picture of the registered product on the equipment
  • Statistic graphs of the results available on the screen
  • Ultra-fast 24-bit A/D converter
  • Simple and intuitive interface
  • Compatible with imported devices and with TEX-G3 line
  • Validated according to the European Community (CE Seal) for emissions and electromagnetic interferences
  • Register of up to 1,000 tested parts with up to 16 inputs for each part
  • Events schedules for reminding the operator about necessary actions to be performed throughout the day/shift
  • Languages: Portuguese, English, Spanish or other language (on demand)


  • Differential sensor, with resolution of 0,01Pa
  • Test pressure: 5 / 30 /200 /500 /1.000 /1.700kPa
  • Leak measurement by pressure differential sensor;
  • Pressure units: kPa, bar, psi, cmH2O, mmHg, or unit programmed by the user;
  • Differential pressure ranges: 500 / 5.000 Pa;
  • Selectable units: Pa, Pa/s, mL/min;
  • TEX’s own pneumatics;
  • Worldwide technical support;
  • It performs air-tightness, obstruction, cycling, pre-filling, and external chamber tests;


Having this solution implemented to your company, you will have the following Benefits within your reach:

  • It replaces important devices with reliability improvements; and availability;
  • High immunity to dirt in the pneumatic lines;
  • It is more intuitive and easy to operate;
  • National and worldwide technical assistance, with part availability for repairs in field;
  • Availability of demonstration and rental of pieces of equipment;
  • Smart pneumatic circuit: it speeds up the test total time;
  • Differential pressure converter (Pa) in leaks (cm³/min) through the Leak Master (optional);
  • The volume factor calculator (KVe) enables you to set the part dynamic volume in a simple and intuitive way.

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