Pressure leak tester T9731

vacuumflowfor medical devices

The T9731- EN 14683 is specifically designed for measure the adequate air flow rate in complete adherence to the standard EN 14683 for surgical masks testing. As shown in diagram C.1 on page 12 of the standard EN14683 , the instrument is equipped with two air flow meters of type Mass-flow with scales 0.0...20.0 nLitres/minute (2.12 of diagram - point C.2.1) servo driven valve controlled from the software (10 of the diagram - point C.2.4), and a double gauge / differential pressure measurement (M1 and M2) as expressly indicated in point C.2.2 . In order to comply with both the ISO accreditation standards and the expectations of the reference standard, the pressure measurements in “Differential" mode (or pressure drop) occurs in Pa or Pa/cm2 in case the sample area is set in the menu TST with area different from 1.00 cm2. The connecting "short form" attached to the manuals provides connection to an external vacuum pump (C.2.3), not provided. A special "flow sensor deviation" parameter allows a continuous comparison of the two sensors of flow measurement(can be excluded by setting the threshold to 0%) in order to comply in Run-Time mode with the validation of C.2.5.5. In addition to what is required in the legislation, the instrumentation is able to measure both differential pressures (loss of pressure (mouthpiece head) and relative pressure (mouthpiece head) both for perform tests indiscriminately at a controlled flow rate that at constant pressure. Complete the features all the options already present in the T9000 range as ISO, LAN traceability, Wifi, BLE , communication ports, AUX signals as more in detail indicated in the user manual.