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Order A3000-6MM-240VAC by Dwyer A3000 Photohelic Switch/Gage - US Mega Store

Dwyer . A3000-6MM-240VAC

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Attributes

Brand name, Manufacturer name, ManufacturerDwyer
Attribute00, Attribute15Air and non-combustible, compatible gases
Attribute01, Attribute160-6 mm w.c.
Attribute02, Attribute17±2% of FS at 70°F (21.1°C)
Attribute03, Attribute18-20" Hg. to 25 psig (-0.677 to 1.72 bar)
Attribute04, Attribute1920 to 120°F. (-6.67 to 48.9°C)
Attribute05, Attribute201/8" female NPT
Attribute06, Attribute214 lb (1.81 kg)
Attribute07, Attribute22Each setpoint has 2 Form C relays (DPDT)
Attribute08, Attribute23±1% of FS
Attribute09, Attribute2410A @ 240 VAC
Attribute10, Attribute25Screw terminals. Use 167°F (75°C) copper conductors only
Attribute11, Attribute26240 VAC, 50 Hz
Attribute12, Attribute27Diaphragm in vertical position
Attribute13, Attribute28Adjustable knobs on face
Attribute14, Attribute29CE, CSA, UL
AttributeKey00, AttributeKey15Service
AttributeKey01, AttributeKey16Range
AttributeKey02, AttributeKey17Accuracy
AttributeKey03, AttributeKey18Pressure Limits
AttributeKey04, AttributeKey19Temperature Limits
AttributeKey05, AttributeKey20Process Connections
AttributeKey06, AttributeKey21, Weight_AttribWeight
AttributeKey07, AttributeKey22Switch Type
AttributeKey08, AttributeKey23Repeatability
AttributeKey09, AttributeKey24Electrical Rating
AttributeKey10, AttributeKey25Electrical Connections
AttributeKey11, AttributeKey26Power Requirements
AttributeKey12, AttributeKey27Mounting Orientation
AttributeKey13, AttributeKey28Set Point Adjustment
AttributeKey14, AttributeKey29Agency Approvals
CategoryL1Process Control & Automation
CategoryL2Gauges
CategoryL3Pressure & Vacuum
CategoryL4Dwyer A3000-6MM-240VAC
ConditionNEW
Extra Product NameOrder A3000-6MM-240VAC by Dwyer A3000 Photohelic Switch/Gage - US Mega Store
Weight4
WeightUnitlbs
moq, multiple, tierMinQty11
MPN, SKUA3000-6MM-240VAC
qtyInStockContact Us
snippet<p><strong>Dwyer, A3000-6MM-240VAC, A3000 Photohelic 240 VAC Pressure Switch/Gage, Range 0-6 mm w.c. </strong> </p> <p> <a rel="nofollow" target="_blank" href="https://www.dwyer-inst.com/PDF_files/A3000%20CE%20DECLARATION%20OF%20CONFORMITY.pdf"> <img src="//usmegastore.com/assets_images/depiction/parsed_images/CE.jpg" > </a> <img src="//usmegastore.com/assets_images/depiction/parsed_images/CSA.jpg" > <a rel="nofollow" target="_blank" href="http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/showpage.html?name=NKPZ.E38121&ccnshorttitle=Motor+Controllers,+Float-+and+Pressure-Operated&objid=1074106945&cfgid=1073741824&version=versionless&parent_id=1073990258&sequence=1"> <img src="//usmegastore.com/assets_images/depiction/parsed_images/UL_1.jpg" > </a> </p> <p>3-in-1 Indicating Gage, Lo-limit and Hi-limit Control </p> <p><strong>Photohelic&#174 Switch/Gage </strong> function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic&#174 gage design. The Photohelic&#174 switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Single pressure 36000S models measure to 6000 psig (413 bar) with a 9000 psig (620 bar) rating. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. </p> <p><strong>Photohelic Sensing - How It Works </strong> </p> <p> In typical applications, these Dwyer switch/gages control between high and low pressure set points. When pressure changes, reaching either set point pressure, the infrared light to the limiting phototransistor is cut off by the helix-driven light shutter. The resulting phototransistor signal is electronically amplified to actuate its DPDT slave relay and switching occurs. Dead band between make and break is 1% of full scale or less - just enough to assure positive, chatter-free operation. </p> <p><strong>Relay-Transformer Features </strong> </p> <p> A plastic housing protects all electronic components. Solid-state and integrated circuit electronics are on glass-epoxy printed circuit boards and self-extinguishing terminal boards. </p> <p><strong>Applications - Photohelic&#174 Switch/Gage </strong> </p> <p> In both series of pressure switch/gages, you get the convenience of a visual indication plus high-low limit switching. For both OEM and in-plant applications, the Photohelic&#174 switch/gage is used to control pressures in air conditioning systems, clean rooms, fluidic and pneumatic control systems, materials handling equipment, alarm or control fume exhaust systems, control pressure in air structures, and monitor respiratory and blood pressures. </p> <p><strong>Standard Model </strong> </p> <p>Two phototransistor-actuated circuits and two DPDT relays permit both high and low alarms or limit controls. Relays are de-energized when gage pointer is to the left of respective set points; relays are energized as pointer passes to the right of set points. Loss of electrical power or loss of pressure provide "fail safe" protection. </p> <p><strong>High and Low Latching Circuits </strong> </p> <p>Dwyer Photohelic&#174 switch/gage can be wired for high-latching, low-latching, or combination high-low latching circuits. That is, the equipment will hold in these respective positions once activated and until manually reset. This can be particularly useful for alarm and signal applications where control is accomplished by another Photohelic&#174 switch/gage or other means. Complete wiring and operational instructions are included. Where manual reset is required a dry circuit push button such as Dwyer Part A-601 should be used. </p> <p><strong>Features </strong> </p> <ul><li><strong>Bezel and front cover </strong> (with set point knobs and zero adjustment screw) removed to expose Photohelic&#174 gage set point mechanism. Cover is clear polycarbonate plastic </li> <li><strong>Gage pointer and light shutter </strong> are mounted on helix and balancing counterweight. Shutter passes through slot in optical limit switch to expose phototransistors to integral infrared light source or mask them depending on applied pressure </li> <li><strong>Light shield </strong> effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean "finished" look </li> <li><strong>Optical limit switches </strong> are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy </li> <li><strong>Semi-Flexible drive shaft </strong> connects to set point knobs </li> <li><strong>Zero adjustment screw </strong> connects to screw in cover to adjust zero pressure reading </li> <li><strong>Plastic enclosure </strong> protects electronic components and electrical connections </li> <li><strong>Polycarbonate connection </strong> or terminal board is self-extinguishing </li> <li><strong>Glass-epoxy printed circuit boards </strong> for durability and performance </li> <li><strong>Load relays </strong> are DPDT with latching feature for maximum application versatility </li> <li><strong>Electronics </strong> are designed to operate on 50 Hz, 240 Volt current with 10% over or under voltage. </li> <li><strong>Switch set pointers </strong> show switch settings at all times </li> <li><strong>Spring loaded friction clutch </strong> prevents operator damage of set point mechanism<br> </li> </ul>
tierPrice1481.3

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