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PDL-3 | 316 SS paddle with half coupling. Minimum bulk density of 30 lb/ft³ (481 kg/m³). Fits through a 1-1/4" coupling eliminating the need for a mounting flange. | Dwyer

316 SS paddle with half coupling. Minimum bulk density of 30 lb/ft³ (481 kg/m³). Fits through a 1-1/4" coupling eliminating the need for a mounting flange.

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Dwyer PDL-3 Documents

Instruction Manual Series PLS Catalog Page More Info

Overview

Details for PDL-3

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316 SS paddle with half coupling. Minimum bulk density of 30 lb/ft³ (481 kg/m³). Fits through a 1-1/4" coupling eliminating the need for a mounting flange.

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 rotatea paddle and sense the presence of dry powder or bulk materials. Movement isimpeded when product comes into contact with the paddle and the resulting motortorque activates the output switches and stops the motor. The PLS is designed with theindustry standard 1-1/4" male NPT connection and mounting flanges.

Product Applications

Mining
Food and beverage
Silos
Hoppers

Magnetic drive that isolates and completely seals the control head from the process and environment preventing material or dust from entering the control head.
Motor shuts-off when paddle stalls increasing motor life, preventing motor burnout, and decreasing power usage.
Slip clutch design enabled by the magnetic drive that prevents damage to motor and drive mechanism from sudden or excessive loading on the paddle.
Status indication light on weatherproof models.
Screw cover on the enclosure for easy access with no worries about losing bolts or screws.
Modular design to allow field installation of any paddle, flanges, shaft extensions, or shaft guards.
Flexible coupling available for protection of the paddle and drive from side loads, surges or impacts. Recommended for top mount applications with shaft extension and applications with large or heavy materials.

Specifications

Series: PLS Paddle Level Switch
Category/Type: Level
Type: Level Switches
Series: PLS Paddle Level Switch
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.