Decentralised control unit, equipped with a CO2 sensor for needs-based ventilation
Decentralised CO2 monitoring with direct control of various supply and exhaust air elements such as fans and dampers (0..10.000 ppm)
Properties
Power supply
:
230 V AC
measuring range (CO2)
:
0..10.000 ppm
Measuring accuracy CO2
:
± 50ppm +3 % vom Messwert
Operating conditions
:
0…50°C / 0…85 %rH
Storage conditions
:
-30…70°C / 0…85 %rH
Protection class
:
IP 31
EMV/ESD
:
EN 50082-1, EN 50082-2
Signal output
:
I²C
QFS-2X
Stainless Steel Float Switch
QFS-20 & QFS-21 float switches have stainless steel floats and one or two reed contacts.
Properties
Protection class EN60529
:
IP68
Material Float
:
VA 1.4571
Material hose
:
Edelstahlwellschlauch (1.4404) mit Edelstahldrahtumflechtung (1.4301)
Operating temperature
:
max. + 150 °C
media density
:
ρ ≥ 0,8g/cm³
Switching system
:
Reed-Schalter
Contact
:
Wechsler, NO, NC
Switching voltage
:
4...250 V AC/DC
Switching current
:
1 mA ...1 A
Switching capacity
:
max. 1A, 60 VA/60 W
Switching hysteresis
:
ca. 100 mm
Switching angle
:
ca. + 20° / – 20°
Operating pressure (QFS-20)
:
max. 15 bar
Operating pressure (QFS-21)
:
max. 6 bar
HD-1XX
Hydrostatic filling level measurement
Continuous and precise level measurement in unpressurised, open basins and tanks as well as underground applications such as shafts, wells and boreholes.
QFS-3X
Mercury-free float switch with µ-switch
Properties
Protection class EN60529
:
IP 68
Cable entry
:
PVC , PTFE bzw. PVDF
Conductor cross-section
:
3 x 0,75 mm², PUR 3x 0,5mm²
Operating pressure cylinder
:
max. 1 bar
Operating pressure sphere
:
max. 2 bar
Switching system
:
µ-Schalter
Contact
:
Wechsler, NO, NC
Material Float
QFS-30
:
PPH (Polypropylen)
QFS-31
:
PPH (Polypropylen)
QFS-34
:
PE (Polyethylen)
Cable
TPK
:
PVC Basis Ø 5,9 mm
TPKV
:
PVC verstärkt Ø 7,3 mm
PUR
:
Polyurethan Ø 5,4 mm
SIL
:
Silikon Ø 6,4 mm
FEP
:
Teflon Ø 4,0 mm
AEM
:
Ethylen-Acrylat-Kautschuk
Cable length between float & attachment
TPK
:
70 mm
TPKV
:
90mm
PUR
:
100mm
SIL
:
80 mm
FEP
:
110 mm
AEM
:
abhängig vom Innenkabel
Operating temperature
TPK(V), AEM
:
max. + 60 °C
PUR
:
max. + 70 °C
Silicone,Tefloncable with PE float
:
max. + 80 °C
Silicone, Teflon cable with PP float
:
max. + 85 °C
MaterialDensity
QFS-31
:
≥≥ 0,6 g/cm³
QFS-34
:
≥≥ 0,75 g/cm³
QFS-30 TPK(V) cable
:
≥≥ 0,85 g/vcm³
QFS-30 PUR cable
:
≥≥ 0,95 g/cm³
QFS-30 SIL cable
:
≥≥ 0,90 g/cm³
QFS-30 FEP cable
:
≥≥ 0,95 g/cm³
QFS-30AEM cable
:
≥≥ 0,90 g/cm³
Our application engineers advise you
personally, comprehensively and professionally!