Description
DWYER SERIES PLS PADDLE LEVEL SWITCH – Weatherproof and Explosion Proof Option, Rotary Paddle Level Control, Top or Side Mounting for Dry Bulk Materials
The Series PLS Paddle Level Switch uses a 1 rpm synchronous motor to rotate a paddle and sense the presence of dry powder or bulk materials. Movement is impeded when product comes into contact with the paddle and the resulting motor torque activates the output switches and stops the motor. The PLS is designed with the industry standard 1-1/4″ male NPT connection and mounting flanges.
Applications:
- Mining
- Food and beverage
- Silos
- Hoppers
Specifications:
- Service: Dry powder or bulk materials compatible with wetted materials
- Sensitivity: Minimum material density of 5 lb/ft³ (80 kg/m³), maximum of 200 lb/ft³ (3200 kg/m³)
- Wetted Materials: Paddles: 316 SS
- Exposed Shaft: 316 SS
- Shaft Seal: PTFE
- Mounting Boss: Aluminum
- Flexible Coupling: 316 SS
- Mounting Flanges: Carbon Steel or 316 SS
- Shaft Extension and Shaft Guards: Galvanized Steel or 316 SS
- Temperature Limits: Standard Construction: Process: -40 to 300°F (-40 to 148.9°C), Ambient: -40 to 185°F (-40 to 85°C); High Temperature:
- Process: -40 to 500°F (-40 to 260°C), Ambient: -40 to 185°F (-40 to 85°C)
- Pressure Limit: 30 psig (2.07 bar) maximum for .5 micron or larger material
- Power Requirement: Select by part number: 110-120 VAC, 230 VAC, 24 VAC, 48 VAC, or 12 VDC
- Power Consumption: Weatherproof models: 5 watts, Explosion-proof models: 3 watts
- Enclosure: Aluminum, powder coated
- Enclosure Rating: Weatherproof (W, WH construction): NEMA 4X, Explosion-proof (E, EH construction): NEMA 4X and rated for Class I, Div. 1 & 2, Groups C & D, Div. 1 & 2, Groups E, F, & G
- Switch Type: SPDT or optional DPDT snap switch
- Electrical Rating: 15 A @ 120
- Electric Connections: Screw terminals
- Conduit Connection: 3/4″ female NPT
- Process Connection: 1-1/4″ male NPT. Optional flange
- Indication Light: Red LED that activates when switch is made or when switch is not made with RL option (not available on Explosion-proof models)
- Time Delay Relay Option: Five field adjustable ranges from 0-1 to 0-31 minutes. (RL option not available, DPDT option not available with 230 VAC time delay)
- Weight: Control head only: 4 lb (1.81 kg)
- Agency Approvals: cUL, UL approved as an auxiliary device or as an auxiliary device for hazardous locations.
Models:
- PLS-W-S-1-0-0-0-0 Paddle level switch, SPDT, weatherproof, 120 VAC power supply.
- PLS-W-S-1-2-CSH-0-0 Paddle level switch, SPDT, weatherproof, 120 VAC power supply, includes PDL-1 paddle and FLG-CSH flange.
- PLS-W-S-1-3-0-0-0 Paddle level switch, SPDT, weatherproof, 120 VAC power supply, includes PDL-3 paddle.
