OIML R 144-2 • Test procedures

1.17.2 Test procedure

The gas analytical system (or its separate units) shall be exposed to electromagnetic field strength as follows:

  • frequency range:  — ;

  • field strength: ;

  • modulation: 80 % AM, sine wave.

The field strength may be generated in different facilities.

The field strength shall be established prior to the actual testing (without the gas analytical system or its separate units in the field).

When the test is carried out in a shielded enclosure to comply with international laws prohibiting interference to radio communications, care shall be taken to handle reflections from walls. Anechoic shielding may be necessary.

During the test, measurements shall be performed using the CGM with the largest volume fraction for the components to be determined according to 1.2.