SIT 828 NOVAMIX Bedienungsanleitung Seite 10

C
Air/gas ratio adjustment
With pneumatic control signal at
Maximum value (fan working at top
speed), turn screw S so that
effective value coincides with
required theoretical value.
Clockwise rotation:
pressure Pu decreases.
D
Checking of zero offset value
With pneumatic signal at minimum value
check the offset value.
If necessary repeat adjustments B and C.
E
Adjustment of maximum outlet pressure Pu (max).
With pneumatic control signal ∆p (air)
at maximum value (fan working at top speed),
turn screw P.
Clockwise rotation:
pressure Pu (max) increases.
Versions without ratio adjuster
A
Adjustment of minimum outlet pressure Pu (min).
In absense of pneumatic control signal
(∆p (air) = 0 to iniets F) turn screw N.
Clockwise rotation:
pressure Pu (min) increases.
B
Adjustment of maximum outlet pressure Pu (max).
With pneumatic control signal ∆p (air)
at maximum value (fan working at top speed),
turn screw P.
Clockwise rotation:
pressure Pu (max) increases.
10
Pu
Pu
Pu
Pu
(air)
∆p
(air)
∆p
(air)
∆p
(air)
∆p