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Dwyer PLS2系列阻旋式料位開關
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系列阻旋式料位開關
Dwyer PLS2系列阻旋式料位開關
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:
Dwyer PLS2系列阻旋式料位開關
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:
Dwyer PLS2系列阻旋式料位開關
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