Low Pressure Measurement At The Filter Silencer; Fig. 10: U-Tube Manometer At The Filter Silencer - ABB XAC18513 Operation Manual

Operation Manual / 4 Product description / A100-L
4 Monitoring during operation / 4.3 Low pressure measurement at the
filter silencer
4.3

Low pressure measurement at the filter silencer

4.3.1 Introduction
The low pressure measurement with a U-tube manometer is used for the following pur-
poses:
¡
During acceptance test of the engine: Measurement of the correction factor for the cal-
culation of the turbocharger efficiency
¡
When using a filter mat: An increased pressure loss indicates an increase in the fouling of
the filter material.
4.3.2 U-tube manometer at the filter silencer
Fig. 10: U-tube manometer at the filter silencer
81000
81050
A [mm H O]
2
If the turbocharger is operated at maximum engine power and pressure loss (A) reaches the
value of 200 mm H O:
2
Clean filter mat.
u
NOTICE
Reading of pressure loss
For simple reading of the pressure loss (A), the dipstick at the U-tube mano-
meter can be pulled out to the level of the lower water level.
Better readability of the U-tube manometer can be achieved by filling with
slightly coloured water.
© Copyright 2017 ABB. All rights reserved.
Filter silencer
U-tube manometer
Pressure loss / pressure difference
HZTL4034_EN Revision K June 2017