Description
Sonde fiable & simple pour la détection de liquides agressifs, collants ou très pollués, particulièrement adaptée comme protection contre les débordements.
Données techniques
Propriétés NP-250 | NP-252
- Tête de raccordement
- PA
- Classe de protection EN60529 Tête de connexion
- IP 54
- filetage de raccordement
- ab G½”
- Bride de raccordement du conteneur
- ab DN 25
- Pitot tube material
- PVC
- Matériau Raccord à vis
- PVC
- Material flange
- PVC
- Ø du tuyau
- 16 mm / 25 mm
- Température de fonctionnement
- max. +60 °C
- température du milieu
- max. +60 °C
- Contact
- Wechsler
- Tension de commutation argent
- 250 V AC
- Tension de commutation or
- 24 V AC
- Courant de commutation argent
- 6 A
- Courant de commutation or
- 100 mA
- ltdata.
- ltdata.
Propriétés NP-251 | NP-253
- Tête de raccordement
- PS
- Classe de protection EN60529 Tête de connexion
- IP 54
- filetage de raccordement
- ab G½”
- Bride de raccordement du conteneur
- ab DN 25
- Pitot tube material
- 1.4571
- Matériau Raccord à vis
- 1.4571
- Material flange
- 1.4571
- Ø du tuyau
- 15 mm / 28 mm
- Température de fonctionnement
- max. +60 °C
- température du milieu
- max. +90 °C
- Contact
- Wechsler
- Tension de commutation argent
- 250 VAC
- Tension de commutation or
- 24 V AC
- Courant de commutation argent
- 6 A
- Courant de commutation or
- 100 mA
NP-25X configuration
Votre configuration
- Nom de la base
- NP-25
- Staurohrmaterial
- Anschlussgewinde
- Druckschaltermembran
- Kontakt
- Staurohrlänge
Autres informations sur les produits
The pneumatic-type level switch NP-250/251 has been shown to be a very reliable and simple sensor for scanning liquids, in particular when used for overflow protection. The liquids can be aggressive, sticky or highly contaminated. The switch can also be used for signalling minimum levels. It can be used only in open, pressure less containers, tanks etc. The level switch is supplied in PVC or stainless steel (1.4571) and has a membrane changeover switch of Viton which responds to excess pressure (150 mm water gauge). Operational reliability of the switch when used as a min-max switch and protection against dry-running is guaranteed only if the containers, tanks etc are emptied or partially emptied at regular intervals, so that the air in the pressure tube can be renewed. If double overflow protection is required (redundance) the flange design should be used 2-fold.
Owing to the high switching capacity, contactors, optical and acoustic signalling systems can be directly electrically controlled without an intermediate relay.
