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 Principe de fonctionnement |
- Level controllers for liquids, even aggressive ones, not viscous, not clogging and free of suspended solid particles.
The Reed contacts (up to 4) inside the stem, are actuated directly by the magnet float. Wet parts (stem and float) to choose between: or PVC & PP, or PP, or PVDF
Quick commissioning:
- Distance of each contact from sealing surface is fixed (requested on P.O.): No adjustment requested on site to guarantee the exact positioning of contacts.
- The PP float passes through the BSP 2'' fitting without dismantling the MNR.
- At the stem bottom a nut limits the float movement: By unscrewing it, the float may be removed.
Note: It is recommended to provide the optionnal flange ND100 to allow the PVDF float to pass through the fitting.
Recommendations:
The use of a relay ES2001 (data-sheet 250-02) will protect the Reed contact and increase its switching power and lifetime.
| Height of stem | Min. 250 mm / Max. 2,500 mm | |
| Liquid density | Min = 0.75 | |
| Temperature | PVC: 0 ... +60 °C PP: 0 ... +80 °C PVDF: 0 ... +110 °C |
|
| Pressure limit | Max. 1 bar at 20 °C |
Materials:
| Stem and fitting | PVC, PPH or PVDF | |
| Float | PPH or PVDF | |
| Head housing | PBT, glass fiber reinforced, IP65 |
Contacts:
| Number | 1 to 4 bistable change-over contacts | |
| Switching power | 60 VA / 220 V / 0.5 A | |
| Connections | Screw terminals Cable gland M20 x1.5 (for cable Ø 5 ... 9) |
|
| Shortest gap | 100 mm between 2 contacts | |
| Accuracy | ± 2 mm | |
| Hysteresis | 8 mm |
Fittings:
| Standard | BSP 2'' | |
| Option | Flange ND 100 or BSP 1'' |
EC Conformity: The instrument meets the legal requirements of the current
European Directives.
