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4000 Periodic Maintenance

Service Manual 1-7

• Opacity measuring chamber type 4000

Visual check

− Silicon seal

− Leaks in housing

− Housing components (cracks, faults)

− Closure fittings, snap mechanism of optical elements

− Electrical plug connections and cables

− Probe hose, probe clamp

Function check

(each test is described in the Operating Manual)

− Test function of fan

− Test function of heating

− Check changeover valve

− Clean the optical elements (by wiping)

− Linear check

Function test

− Leak test

(see Operating Manual)

− Gas calibration

(see Operating Manual)

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AVL DiGas 4000 Specifications

General