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VDL (E3.1) 10/2020 Page 160/196
23.1.3 Checking the function of the manometer for compressed air sweeping
We recommend checking the manometer display for compressed air sweeping in the chamber door at least
once a year.
Via the outlet with sweeping plug for compressed air sweeping before start-up (11), the manometer display
in the door can be tested with a reference manometer.
• Remove the sweeping plug and attach a hose to the tube Ø 8 mm of the outlet (11).
• Open the USB cover on the controller housing (triangular instrument box)
• Use the pressure regulator to set a visible value on the manometer.
• Measure the pressure at the outlet (11) and compare it to the manometer display
The acceptable deviation between the manometer display of the chamber and the reference measuring
device is +/- 10 Pa.
(11) (9) (10)
(9) Pressure regulator for c
ompressed air
sweeping
(10) Connection for compressed air sweeping /
overpressure
(11) Outlet with sweeping plug for compressed
air sweeping before start-up
Figure 26: Pressure regulator and sweeping plug for
compressed air sweeping on the chamber rear
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