M-50X Fixed Set point Flow Switch0 pages

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M-50X Series

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Explosion proof flow switch

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with in-line flow

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sensors

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Features

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♦ Well suited for corrosive and non-corrosive gases or liquids

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♦ UL recognized for hazardous locations

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♦ ISSep certied for intrinsic safety and encapsulation

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♦ Community Europe compliant

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♦ Universal mounting available

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Application

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♦ Gas chromatographs

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♦ Hazardous fluid systems

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♦ Sewage systems

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♦ Leak detection

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♦ Sample lines

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The M-50X Explosion Proof Series low flow monitors increasing and decreasing flow, it utilizes a single

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moving part which responds to fluid (liquid or gas) flowing within a system. This switch is suitable for a

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wide range of applications in industrial, biomedical, and OEM products. The flow monitors operate only

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when fluid flow is positively established.

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Operation

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The operating principle is based on a free floating magnetic piston

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which responds only to the motion of fluids within the line, not to

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static or system pressures. In the presence of fluid flow, controlled

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movement of the piston actuates an external hermetically sealed

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Reed switch thus producing the required signal. This signal can be

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used to actuate audible or visual alarms as well as relays, or other

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controls. Piston travel is short which ensures low hysteresis. Pressure

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drop across flow switch varies from 0.035 to 2 psi (at maximum flow

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rates of air and liquid). Universal mounted units are fitted with a

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spring which resets the piston. The spring is held in place using an

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orifice disc.

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Custom Versions Available

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Malema welcomes the opportunity to apply its flow sensor experi-

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ence to work for its customers. Please contact the factory for any

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special requirements; such as ports, extreme temperature and pres-

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sure capabilities, etc.

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Body

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Retainer Ring

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Top

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Piston

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Magnet

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ENCAPSULATED)

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Retainer Ring

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Bottom

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Reed Switch

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Inside Capsule

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Illustrated is the M-50X Model with 1/8" ports.

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Calibration Range *

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Air: 50-5,000 NmLPM

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Water: 1 - 170 mLPM

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* For lower and higher trip points contact factory.

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Maximum flows through switch are higher.

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Specifications

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Set Point Accuracy: ±10% maximum

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Repeatability: ±2%

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Hysteresis: 15%

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Material Versions * Port Size

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• 316 Stainless Steel M-50

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* Other materials available on request; only the • 1 /8" FNPT

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316 SS is ISSep Certied. • 1/A" FNPT

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Page 1

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Corporate Headquarters West Coast Headquarters Asia Headquarters

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1060 S Rogers Circle Boca Roton, FL 33487 3350 Scott Blvd Bldg. 43 Santa Clara, CA 95054 10 Ang Mo Kio St 65 Techpoint #02-14 Singapore 569059

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P: (561) 995-0595 F: (561) 995-0622 P: (408) 970-3419 F: (408) 970-3426 P: (65) 6482-3533 F: (65) 6484-4231

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