 Version with float Ø 91 and option flange DN 100 |
 Operating principle |
- Level detection on liquids compatible with stainless steel
MNR 7-I is suitable for liquids, not viscous, not clogging and free of suspended solid particles.
The Reed contacts inside the stem are actuated when the magnetic float passes in front of; Detection of up to 4 thresholds.
The contacts are changeover and bistable: status reverses only when the float passes again in front of.
Tterminals are in an aluminum housing, IP 65 (cable gland M20 x1.5); Wiring diagram is shown on the board inside. A nut limits the float movement at the stem end: by unscrewing the nut, the float is easily removed.
Tip: The 2 "connection model with Ø 52 mm float and the DN 100 flange option, allow direct installation without removing the float.
| Stem height | Min. 250 mm / Max. 3,000 mm | |
| Liquid density | Float Ø 91: Minimum 0.75 Float Ø 52: Minimum 0.85 |
|
| Pressure limit | Max. 25 bar at 20 °C | |
| Ambient temperature | -20 ... +70 °C | |
| Operating temperature | -10 ... +100 °C | |
| Reed contacts | Changeover and bistable | |
| Switching power | 40 VA / 220 V / 0.5 A | |
| Shortest gap | 100 mm between 2 contacts | |
| Accuracy | ±2 mm | |
| Hysteresis | 8 mm | |
| Floats | Ø 52, height 88 mm; Density: Min. 0.85 Ø 91, height 110 mm; Density: Min. 0.75) |
|
| Connections | IP 68 enclosure (provided correct tightening of the cable gland), painted aluminum Cable gland M20 x1.5 (for cables Ø 5 ... 9 mm) |
|
| Fittings | 2" BSP M threaded fitting (recommended) ½" BSP M threaded connection (Option: DN 100 flange) |
Materials
| Stem | AISI 316 L (DIN 1.4404) | |
| Float | AISI 316 Ti (DIN 1.4571) | |
| Fittings | AISI 316 Ti (DIN 1.4571) | |
| Flange | AISI 316 L (DIN 1.4404) |
EC Conformity: The instrument meets the legal requirements of the current
European Directives.
