S+S Regeltechnik Premasgard 814 Modbus Série Notice D'instruction page 16

G
®
PREMASGARD
Mounting diagram
3570 Pa
(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 mH O
0.0980665 bar
2
814x - Modbus
3570 Pa
(B)
bar
0.00001 bar 0.01 mbar
0.01 bar
1 bar 1000 mbar
0.001 bar
98.0665 mbar
3570 Pa
mbar
1 Pa
10 mbar 1000 Pa
100000 Pa
1 mbar 100 Pa
9806.65 Pa
16
PREMASGARD
(C)
Pa kPa
0.001 kPa
1 kPa
100 kPa
0.1 kPa
9.80665 kPa
Rev. 2021 - V13
®
814x - Modbus
3570 Pa
(D)
mH O
2
0.000101971 mH O
2
0.101971 mH O
2
10.1971 mH O
2
0.0101971 mH O
2
1 mH O
2