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NP-255 configure
QFS-40 configure
NP-255
Level Switch - multiple 2...4 - pneumatic
very reliable and simple
sensors for scanning liquids, in
particular when used for overflow
protection. liquids can be
aggressive, sticky or highly contaminated
Properties
- Protection class EN60529 : IP 54
- connection thread : ab G2”
- Union nut : ab G2¾”
- Container connection flange : ab DN 25
- Hose Ø : 16 mm
- Operating temperature : +60 °C
- medium temperatur : max. +60 °C
- Contact : Wechsler
- Switching capacity : 500 VA
- Switch-on point (Viton membrane) : 150 mm WS ±30 mm
- Switch-off point (MembraneViton) : 90 mm WS ±30 mm
Material
- Pitot tube / Hose : PVC
- Screw fitting/grommet : PVC
- flange : PVC
- Connection head : PVC
Switching voltage
- silver : max. 250 V AC
- Gold : max. 24 V AC
Switching current
- silver : max. 6 A
- Gold : max. 100 mA
T203.F
Overfill protection for containers
Level sensors type T-20_.F... are
approved by the DIBt (German
Institute for Structural Engineering) as liquid level limit switches for the overcharge protection of containers for storing water-dangerous liquids.
Properties
- Protection class : IP 65 Dose
- Sliding tube length : max. 6000 mm
- Operating temperature : max. 135 °C
- Operating pressure : max. 20 bar
- F-Contact : 1/12 kΩ
- Switching current : 1A, 2A
- Switching voltage : 230 V AC
Float
- quantity : max. 6
- Type 05 : Oval Edelstahl 76 mm Ø | Dichte 0,81 g/cm³
- Type 06 : Oval Edelstahl 90 mm Ø | Dichte 0,67 g/cm³
- Minimum contact distance : Typ 05: 110 mm | Typ 06: 135 mm
Switching contacts and switching capacity
- Changeover contact : max. 5x | 60 W/VA
- normally open : max. 6x | 100 W/VA
- Normally closed contact : max. 4x | 60 W/VA
QFS-40
Built-in float level switch
The QFS-40 built-in float switch is designed for low-cost monitoring of liquids in containers.
Technical Data
- Switch housing : PPH| PVDF
- Seal : NBR (PPH) | FPM (PVDF)
- Operating temperature : PPH max. 80 °C| PVDF max. 100 °C
- Operating pressure : max. 10 bar
- Mounting position : horizontal (±30° von der Horizontalen)
- Contact assembly : Schliesser-, Öffnerkontakt (je nach Einbau)
- Electrical connection : PVC-Kabel
- Switching capacity : max. 230 V AC/DC| max. 40 VA, max. 2 A
- Contact resistance : max. 80 mW
- Min. electric strength : 400 V DC / 1 s
- Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
- fluid density : PPH > 0,6 kg/dm³ | PVDF > 0,95 kg/dm³
- Protection class : IP 68
Connections
- external installation : G ½"
- internal installation : M16
DSM2420
Sensor for simultaneous measuring flow velocity and filling level
The DSM2420 sensor is a combined sensor for simultaneous measuring flow velocity and level in open or accessible closed channels of all types and shapes.
Properties
- Dimensions : 180 x 48 x 36,5 mm ( L x B x H )
- Weight : ca. 1,5 kg
- Protection class : IP68
- Cable length (standard) : 15 m
- Bending radius : > 10 x D (Kabeldurchmesser 6,25mm) = > 62,5mm
- Temperature range : 0°C ... 50°C
- Mounting shoe material : V2A 1,5mm
Certificates
- EX / ATEX : IBExU 04 ATEX 1256
Measuring principle
- Flow velocity: Ultrasonic Doppler :
- Filling level: Differential pressure :
Flow velocity
- Measuring range : 0,01 - 4 m / s
- Measuring accuracy : +/- 5 % vom Momentanwert im Kanal
- Temperature drift : 0,1% / °C ( Meßspanne )
- Temperature drift : 0,05% / °C ( Nullpunkt )
- Output signal : 4 - 20 mA
Filling level
- Measuring ranges : 0 –1 m ; 0 – 2 m ; 0 – 4 m
- Measuring accuracy : < 0,2% v.E. Summe aus Nichtlinearität, Hysterese und Wiederholbarkeit
- Temperature drift : 0,005% / °C v.E. Meßspanne
- Temperature drift : 0,005% / °C v.E. Nullpunkt
- Material : Al2O3 (96%) aktive Fläche
- Output signal : 4 – 20 mA
- Zero point : norm 4 mA ( +/- 3 % )
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