MP Mini-Photohelic Differential Pressure Switch/Gage

Measures and controls positive, negative, or differential pressures of non-combustible and non-corrosive gases, and includes visible switch status LED

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$414.00 CAD
Normally ships in 2-3 Weeks

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The Series MP Mini-Photohelic® differential pressure switch/gage combines the time proven Minihelic® II differential pressure gage with two SPDT switching set points. The Mini-Photohelic® switch/gage 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 the back of the unit.

• Gage reading unaffected by switch operation and will continue to read pressure even during power loss
• Visible switch status LED provides indication of set point switching state
• Compact design but with the power of larger devices can meet the same application specifications


Service Air and non-combustible, compatible gases
Wetted Materials Consult factory
Accuracy 5% FS @ 70F (21.1C). Gage face mounted in vertical position
Pressure Limits 30 PSIG (2.067 Bar)
Temperature Limits 20F - 120F (-6.7C - 49C)
Process Connections Barbed for 3/16 in ID tubing (STD); 1/8 in male NPT (optional)
Size 4-1/8 in (104.78 mm) depth x 3-1/16 in (77.79 mm) diameter
Weight 23 oz (652 g)
Switch Type (2) SPDT relays
Electrical Rating 5 A @ 120/240 VAC resistive; 5 A @ 30 VDC
Electrical Connections Screw type terminal block. Accepts 22 AWG - 12 AWG wire
Power Requirements 24 VDC / 24 VAC 50/60 Hz 4 W
Mounting Orientation Gage face in vertical position
Set Point Adjustment Push buttons
Standard Accessories Two (2) mounting screws, one (1) 0.050 in hex allen wrench
Agency Approvals CE, cULus

• Fume hoods
• Dust collection
• Pneumatic conveying
• Clean room

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