Inovytec Ventway Sparrow, Руководство пользователя

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Ventway Sparrow User Manual
Page 109 of 144
Note that at higher altitudes the ventilator performance may be limited.
If set pressure is not reached, a “LOW PRESSURE” alarm will be activated.
18.3.3. AIRBORNE PARTICULATES
The inlet filter of the Ventway Sparrow provides protection of gas flow
paths through the inlet and emergency intake ports. However, in areas
where fine dust is present, it is recommended to use a disposable bac-
terial/viral filter.
This may prolong the lifetime of the internal filter. Visually inspect the
filter for dust and dirt buildup for extended operation in dusty
environments.
If the filter becomes dirty, it must be replaced. Circuit Verification Test
(CVT) must be performed without the filter attached to the ventilator,
since it may cause a pressure drop that will result in not passing the test.
Altitude vs. Maximum Pressure possible