The document describes the Goldammer NR 85, a maintenance-free level regulator designed as a solenoid switch. It operates without direct contact with the medium to monitor and regulate liquid levels and temperatures within tank inserts.
The device features bistable protective gas contacts that can be fixed or adjustable on a perforated strip. A permanent magnet in the float switches the contacts based on level changes, while thermal elements like Pt100 sensors allow for temperature monitoring. The unit is available with brass or stainless steel floats and various connection options including DIN 43650/51 plugs.
| Nominal pressure (Brass float) | 1 bar max. |
|---|---|
| Nominal pressure (Stainless steel float) | 10 bar max. |
| Maximum medium temperature | 100°C |
| Connection type (Plug socket) | DIN 43650 or DIN 43651 |
| Protection class (Plug socket) | IP65 |
| Switching current (Contact type 01+03) | 0.5A max. |
| Switching potential | 230V AC max. |
| Hysteresis | 4 mm |
Yes, thermal elements such as Pt100 sensors and thermal contacts can be additionally incorporated.
Yes, it is maintenance-free when non-deposit media are used.