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OPERATING INSTRUCTIONS RH120E Operation
No. Element Function Symbol
191 Underpressure gauge Air filter (left engine 1, outside) Indicates the underpressure in the air filter. Underpressure must be less than 635 mm water column.
192 Underpressure gauge Air filter (left engine 1, inside) Indicates the underpressure in the air filter. Underpressure must be less than 635 mm water column.
193 Underpressure gauge Air filter (left engine 2, inside) Indicates the underpressure in the air filter. Underpressure must be less than 635 mm water column.
194 Underpressure gauge Air filter (left engine 2, outside) Indicates the underpressure in the air filter. Underpressure must be less than 635 mm water column.
