Capelec EOBD, Руководство пользователя

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23/04/2019 Rev 3 40
measurement. All this information is directly taken into account by the central unit which is
responsible for detecting maximum opacity, displaying the results on a LCD screen, printing to a
thermal printer or an external A4 format printer and guiding the operator throughout the
procedure.
According to current regulation, the periodic testing of opacimeters is not compulsory. These
devices, may, however later become subject to this type of inspection.
III.2. OPERATING CONDITIONS
The opacimeter automatically checks the parameters that have an influence on the measurement.
If at least one of these parameters is out of bounds, hence threatening to metrologically alter the
results, the opacimeter disables itself and prevents any measurement from occurring until
operating conditions are re-established.
The following problems result in the system being disabled:

Detector temperature out of bounds (limits extending from 41 C to 55°C)

Chamber temperature out of bounds (limits extending from 70°C to 110 C)

Supply voltage out of bounds

Fan speed too low

Computer to cell communication problem

Windows need to be cleaned

Problem with a temperature sensor.