Pramp Automation and Calibration
Category: Level
Product: Level Gauges
Sub Product: Paddle Type Gauge
The operation of paddle type hopper level control products is quite simple. The unit is installed through the wall of the vessel, so that the paddle protrudes inside the vessel. A small electric motor drives a paddle which rotates freely in the absence of material. When the paddle is impeded by material, the motor rotates within the housing which triggers two switches. The first switch is a "dry" electrical contact closure that is available to control a process function or alarm circuit. The second switch cuts the power to the motor, preventing a locked rotor condition, thus extending the motor life. This also activates the signalling device which is wired through that same motor switch. When the material level drops, the loaded stretched tension spring returns the motor to its original running position and the unit is activated.
Features:
Economical, versatile point level indicator Simple
Electromechanical operation
Built-in slip clutch protects internal components from external forces rugged cast aluminium construction.
Dust tight and watertight cast aluminium housing
Unit sealed, including bearings, against maximum pressure: 3 bar
Applications:
Plug chute detection
High, medium and low level detection
Redundant high level detection
Specifications:
Service: Dry powder or Bulk Materials compatible with wetted materials
Sensitivity: Minimum material density of 80 kg/m³, maximum of 3200 kg/m³
Wetted Materials: Paddles: 304 SS / 316 SS, Exposed Shaft: 304SS/316SS,
Shaft Seal: PTFE,
Mounting Flanges: Carbon Steel, 304 SS or 316 SS
Shaft Extensions and Shaft Guards: Galvanized Steel, 304 SS or 316 SS
Temperature Limits: Standard Construction: Process: -40° to 150°C
Pressure Limit: 3 bar maximum for 0.5 micron or larger material
Power Supply: 110 - 220V AC, 230V AC, 24V AC, 48V AC, 12V DC or 24V DC
Enclosure: Cast Aluminium
Switch Type: SPDT or optional DPDT snap switch
Electrical Rating: 10 Amps @ 110/230 VAC, 5 Amps @ 24 VDC
Electrical Connection: Screw Terminals
Conduit Entry: ½” NPT(F)
Process Connection: 1” Male NPT, optional mounting flange available
