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Dwyer PLS2系列阻旋式料位开关

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Dwyer PLS2系列阻旋式料位开关
he Series PLS2 is an electromechanical level switch designed for level monitoring of bulk materials. The rotating measuring vane is driven by a brushless synchronous motor at one

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Dwyer PLS2系列阻旋式料位开关

Dwyer PLS2系列阻旋式料位开关
 

The Series PLS2 is an electromechanical level switch designed for level monitoring of bulk materials. The rotating measuring vane is driven by a brushless synchronous motor at one revolution per minute. As product builds up, the paddle rotation is impeded and the resulting motor torque activates the output switch and stops the motor. A spring mechanism reactivates the motor and returns the switch to normal state when the material no longer impedes the paddle rotation. A torque adjusting mechanism eliminates the need for different sized paddles. The PLS2 is designed with the industry standard 1-1/4" male NPT connection and unit can be side or top mounted

Service:

Dry powder or bulk materials compatible with wetted materials.

Wetted Materials:


 

Paddle: 304 SS;
Exposed shaft: 303 SS;
Shaft seal: NBR;
Process connection: Aluminum.

Temperature Limits:

Process: -13 to 176°F (-25 to 80°C);
Ambient: -4 to 140°F (-20 to 60°C).

Pressure Limits:

11.6 psi (0.8 bar).

Power Requirements:

Select by model number: 115 VAC, 230 VAC or 24 VDC.

Power Consumption:

AC versions: 4 VA; DC version: 2.5 watt.

Enclosure:

Aluminum, powder coated.

Enclosure Rating:

NEMA 4 (IP66);
Rated for Class II & III, Div. 1, Group E, F, G.

Switch Type:


 

SPDT micro switch.

Electrical Rating:

5 A @ 250 VAC, 3 A @ 30 VDC.

Electric Connections:

Screw terminals.

Conduit Connection:

3/4" female NPT.

Process Connection:

1-1/4" male NPT.

Mounting Orientation:

Side or top mounting.

Sensitivity:

Minimum material density of 6 lb/ft3 (96 kg/m3).

Permitted Mechanical Loading:

Standard shaft: 67 lbf (300 N) max;
Optional extension: 22 lbf (100 N) max.

Weight:

2.6 lb (1.2 kg).

Agency Approvals:

CE, FM.

Model Description

PLS2-E-1-1  Explosion-proof paddle level switch, 115 VAC power supply

PLS2-E-1-2  Explosion-proof paddle level switch, 230 VAC power supply

PLS2-E-1-3  Explosion-proof paddle level switch, 24 VDC power supply

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