The new NIVOROTA rotary paddle level switch series of well-known NIVELCO design can be used for detecting the level of lumpy or powdery materials and granules. Mounted to tanks, silos and hoppers it can monitor and control level, filling and emptying of stored materials such as stone, fly ash, sand, coal, feed, beet slice, etc. A small power electric motor drives the paddle which rotates freely in the absence of the material. When the paddle is immersed by the material reaching it, the motor will be switched off the same time triggering the output contact switch. When the material level drops the paddle runs free again, the motor is reactivated and the switch returns to its original state. The new series NIVOROTA E-700 & E-800 rotary paddle level switches provide all the advantageous features of the previous series in one unit. Dust Ex versions are available for use in hazardous environments.
Operating Principle:
Rotary PaddleFeatures:
- Long service time
- Motor shut-off feature
- Flexible coupling
- Sealed bearings
- High temperature range
- True fail-safe version
- Dust-Ex models
Application:
- Granular material and powder with min. 0.1 oz/ft3density
- High or low fail-safe
- Feed, coal, sand, rocks, limestone, metals, rubber
Specification:
- Power supply: 230/120/24 V AC, 24 V DC
- Ambient Temperature: – 22°F to 140°F
- Prozess Temperature: – 4°F to +392°F
- Pressure: max. 44 psig
- Output: SPDT Relay 250V AC, 15A
- Process connection: mouniting plate, or BSPT 1” / 11/2”
- Ingress protection: IP67
- Ex marking: ATEX II 1/2 D Ex tb IIIC T__°C IP67 Da/Db
