Schaller Automation VN115/87plus EX, Руководство по эксплуатации

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Operation Manual VISATRON® VN115/87plus EX
06/2016
Page 28
SCHALLER AUTOMATION
D-66440 Blieskastel / Saarland / Germany / Industriering 14 / P.O Box 1280
Industrielle Automationstechnik GmbH & Co. KG
Tel. +49(0)6842-508 - 0 / Fax -260 / eMail: info@schaller.de / www.schaller.de
3 Commissioning
CAUTION! Unplug the OMD during welding processes
on the engine.
3.1 Adjusting or checking the suction pressure
The suction pressure must be set by adjusting the pressure regulator when the
engine is at standstill. Make sure ventilation of the engine room is in operation.
Figure 23: Pressure regulator unit
WARNING! Adjust 60 mm WC negative pressure.
After adjustment, remove U-tube pressure gauge and screw
in the previously removed plug .
CAUTION! A pressure setting much higher than 60 mm WC
negative pressure may cause a change in detecting
sensitivity and can impact the functionality of the siphon
blocks.
 Connect a U-tube manometer at inspection cover (see Figure 24 ).
(U-tube manometer is included in the service box, available as an option).
 Switch on compressed air supply with inlet pressure in a range from 2 to 15
bar (before connecting the OMD the first time check the pressure).
 If the negative suction pressure is already adjusted to 60 mm WC within a
tolerance of ±5 mm remove the U-tube manometer and finish the procedure.
 Otherwise loosen counter-nut.
 Turn setscrew until the negative pressure is only 60 mm WC.
 Tighten counter-nut.
Setscrew
Counter-nut
No need to touch
throttle-block for
pressure setting.
Pressure setting
by setscrew on
left side only!