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Dwyer Series MP Mini-Photohelic Differential Pressure Switch/Gage

Compact, Low Cost Switch/Gage
The Series MP Mini-Photohelic differential pressure switch/gage combines the time proven Minihelic II differential pressure gage with two SPDT switching setpoints. The Mini-Photohelic is designed to measure and control positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases. Gage reading is independent of switch operation. Switching status is visible by LED indicators located on the front and rear of the gage. Set points are adjusted with push buttons on back of unit. This extremely compact switch/gage is ideal for fume hoods, dust collection, pneumatic conveying and clean room applications. Dimensional Information

Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±5% of full scale @ 70°F (21.1°C). Gage face mounted in vertical position.
Pressure Limits: 30 psig (2.067 bar).
Temperature Limits: 20 to 120°F (-6.7 to 49°C).
Process Connections: Barbed for 3/16" I.D. tubing; 1/8" male NPT optional.
Size: 4-1/8" (104.78 mm) depth x 3-1/16" (77.79 mm) diameter.
Weight: 23 oz (652 g).

Switch Type: (2) SPDT relays.
Electrical Rating: 5A @ 120/240 VAC Resistive; 5A @ 30 VDC.
Electrical Connections: Screw type terminal block. Accepts 22-12 AWG wire.
Power Requirements: 24 VDC/24 VAC 50/60 Hz 4 watts.
Mounting Orientation: Gage face in vertical position.
Set Point Adjustment: Push Buttons.
Standard Accessories: (2) mounting screws, (1) .050" hex allen wrench.
Agency Approvals: UL, cUL, CE.

Popular Models:
Mini-Photohelic DP Switch/Gage - Inches of Water Mini-Photohelic DP Switch/Gage - mm of Water
Model Number Range
 MP-000 0-0.5
 MP-001 0-1.0
 MP-002 0-2.0
 MP-003 0-3.0
 MP-005 0-5.0
 MP-010 0-10
 MP-020 0-20
 MP-040 0-40
 MP-060 0-60
 MP-100 0-100
Model Number Range
 MP-25MM 0-25
 MP-50MM 0-50
 MP-100MM 0-100
Mini-Photohelic DP Switch/Gage - Pa Mini-Photohelic DP Switch/Gage - kPa Mini-Photohelic DP Switch/Gage - psi
Model Number Range
 MP-125PA 0-125
 MP-250PA 0-250
 MP-500PA 0-500
Model Number Range
 MP-1KPA 0-1
 MP-3KPA 0-3
Model Number Range
 MP-5PSI 0-5
 MP-10PSI 0-10
 MP-15PSI 0-15
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