S+S Regeltechnik PREMASGARD 814 Series Operating And Mounting Instructions Manual page 19

G U
PREMASGARD
Mounting diagram
(A)
TYPES OF MONITORING:
Pressure connections at the pressure switch
are marked with
P1 (+) for higher pressure and
P2 (–) for lower pressure.
(A) Below-atmospheric pressure
P1 (+) is not connected,
but open to the atmosphere
P2 (–) connected to inside of duct
(B) Filter
P1 (+) connected upstream of filter
P2 (–) connected downstream of filter
(C) Ventilator
P1 (+) connected downstream of ventilator
P2 (–) connected upstream of ventilator
(D) Volume flow
P1 (+) dynamic pressure,
connected in flow direction
P2 (–) static pressure, connected free of
dynamic pressure components
Conversion table for pressure values
Unit =
1 Pa
1 kPa
1 bar
1 mbar
1 inWC
0.0980665 bar
®
814x - Modbus
(B)
bar
0.00001 bar 0.01 mbar
0.01 bar 10 mbar
1 bar 1000 mbar
0.001 bar
98.0665 mbar
(C)
mbar
1 Pa
1000 Pa
100000 Pa
1 mbar 100 Pa
9806.65 Pa
19
Pa kPa
0.001 kPa
1 kPa
100 kPa
0.1 kPa
9.80665 kPa
Rev. Data - V20
®
PREMASGARD
814x - Modbus
(D)
inWC
0.00401865 inWC
4.01865 inWC
401.865 inWC
0.401865 inWC
1 inWC