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QFS-2X configure
MKL configure
Ex-QFS-3x configure
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
MKL
Magnetic Flap Indicator
The MKL level indicator is connected by its two connections to the container to be monitored (see connection example). According to the law of interconnected containers the level in the float chamber corresponds exactly to the level in the container
Properties
- connection : Flansch ab DN 15
- Material : rostfreier Edelstahl, PVC, PPH, PVDF
- Material flange : Edelstahl 1.4571, C22.8
- Material Float : Edelstahl, Titan, PVC, PPH, PVDF
- Number of contacts : beliebig
- Contact load : max 10 VA, max 230 V AC
- Display length : max. 6m
Operating temperature
- PTFE seal : max. 150 °C
- Stainless steel: Klingerit seal : max. 200 °C
- PVC : max. 60 °C
- PPH : max. 90 °C
- PVDF : max. 130 °C
Stainless steel float
- Weight : ~ 300 g
- Dimensions : Ø 52 x 270
- Operating pressure : 16 bar
- media density : ρ ≥ 0,70 g/cm³
Stainless steel float
- Weight : ~ 320 g
- Dimensions : Ø 52 x 270
- Operating pressure : 40 bar
- media density : ρ ≥ 0,75 g/cm³
Titanium float
- Weight : ~ 180 g
- Dimensions : Ø 52 x 150
- Operating pressure : 16 / 40 bar
- media density : ρ ≥ 0,73 g/cm³
PVC float
- Weight : ~ 331 g
- Dimensions : Ø 52 x 250
- Operating pressure : 6 bar
- media density : ρ ≥ 0,8 g/cm³
PPH float
- Weight : ~ 283 g
- Dimensions : Ø 52 x 250
- Operating pressure : 6 bar
- media density : ρ ≥ 0,69 g/cm³
PVDF float
- Weight : ~ 352 g
- Dimensions : Ø 52 x 250
- Operating pressure : 6 bar
- media density : ρ ≥ 0,85 g/cm³
Ex-QFS-3x
Mercury-free float switches with Ex approval
These float switches have a mercury-free switching system consisting of a microswitch and a ball which actuates this switch.
Technical Data
- Protection class EN60529 : IP 68
- Material Float : PP
- Cable : TPK (PVC Basis), PVC Basis verstärkt, Polyurethan, Silikon, Teflon, Ethylen-Acrylat-Kautschuk
- Conductor cross-section : 3x 0,75 mm², Polyurethan 3x 0,5 mm²
- Operating temperature TPK(V) : AEM Kabel max.+ 60 °C
- Operating temperature PUR cable : max.+ 70 °C
- Operating temperature SIL, FEP cable : max.+ 85 °C
- Operating pressure : max. 1 bar Zylinder| max. 2 bar Kugel
- Switching system : Mikroschalter
- Contact type : Wechsler, NO, NC
- Electrical connection data, Ex-protection : siehe EG-Prüfbescheinigung TüV 09 ATEX 555342
- Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
- CE marking : siehe Konformitätserklärung
- Weight : ca. 200 g
Media density Ex-QFS-30
- TPK(V) cable : ρρ 0,85 g/cm³
- PUR cable : ρρ 0,95 g/cm³
- SIL cable : ρρ 0,90 g/cm³
- FEP cable : ρρ 0,95 g/cm³
- AEM Cable : ρρ 0,90 g/cm³
Media density Ex-QFS-31
- Sphere : ρρ 0,60 g/cm
Mounting position
- Ex-QFS-30 : waagerecht mit G1” Verschraubung, senkrecht mit Beschwerungsgewicht (Ex)
- Ex-QFS-31 : waagerecht mit Flansch ab DN 100 (PP)
BK-3X0
Bistable change-over contact
Magnetically actuated changeover switch,
which permanently changes its electrical switching state as a result of a magnetic system passing by, depending on the direction of movement.
Properties
- Protection class EN60529 : IP 65
- Operating temperature : –25...+70 °C
- Wire cross-section max. : 1,5mm²
- Switching point distance between two contacts : min. 40 mm
- Switching hysteresis : ca. 10-15 mm
Material
- Housing : Polycarbonat
- Mounting clip : V2A, Kabelbinder (PP)
- Rivet : V2A
- Screw connection : M 20 x 1.5, Polyamid
Weight
- BK-390-50 : 137 g
- BK-390-63 / BK-380 : 140 g
Switching contact
- Switching voltage : 5...250 V AC/DC
- Switching current : 1mA...6 A AC/DC
- Switching capacity(min.) : 300 VA, 60 W
- Switching capacity(max.) : 5 mW
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