03.04.2025 13:00 - 13:30
03.04.2025 16:00 - 16:30
Description
Technical Data
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
QFS-3X application-specific configuration
QFS-3 - [ 1 ] - [ 2 ] - [ 3 ] - [ 4 ] - [ 5 ] - [ 6 ] - [ 7 ]
Further product information
These float switches are characterised by their switching system which works without mercury. The switching system consists of a µ-switch which is operated by a ball and which switches with an angle of approx. +3° / +12° ( without hysteresis) and with an angle of approx. (with –26° / +28° additional hysteresis).
