11
G
PREMASREG
®
716x
Rev. 2018 - V25 GB
110Pa
110Pa
3570 Pa
3570 Pa
3570 Pa
TYPES OF MONITORING:
(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
(E) Level:
P1 (
+
) Connection submerged in medium
P2 (
–
) Connection is open to the atmosphere
Pressure connections at the pressure switch are marked with
P1 (
+
) for higher pressure and
P2 (
–
) for lower pressure.
Mounting diagram
PREMASREG
®
716x
PREMASREG
®
716x
Function types
Volume flow rate
V =
k
·
√∆
p
V = Volume flow in m
3
/h
k
= K factor 1...3000
∆
p
= Differential pressure in Pa
Differential pressure
∆
p
= p
+
–
p
–
∆
p
= Differential pressure in Pa
p
+
= higher pressure
p
–
= lower pressure
Filter contamination
S = 100%
·
∆
p
÷
p
Filter
S = Contamination degree in %
∆
p
= Differential pressure in Pa
p
Filter
= differential pressure
filter replacement in Pa
Level display
h =
∆
p
÷
(
ρ
· g)
h = Fill level height in cm
∆
p
= Differential pressure in Pa
ρ
= Density 700...1300 in kg/m
3
g
= 9.81 m/s
2
(A)
(D)
(B)
(C)
(E)
