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Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v

Dwyer Instruments Magnehelic Gauges - Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v

28% 28 percent off rrp

Department: Dwyer Instruments Magnehelic Gauges
  Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v
    • Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic switch/gage set point mechanism.Cover is clear polycarbonate plastic.
• Gage pointer and light shutter 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.
• Light shield effectively protects phototransistors from strong outside light sources yet allows free pointer movement. It also gives interior a clean finished look.
• Optical limit switches are used for reliability and long service life. Attached directly to set pointers, they are individually aligned to assure precise switching accuracy.
• Semi-Flexible drive shaft connects to set point knobs.
• Zero adjustment screw connects to screw in cover to adjust zero pressure reading.
• Plastic enclosure protects electronic components and electrical connections.
• Polycarbonate connection or terminal board is self-extinguishing.
• Glass epoxy printed circuit boards for durability and permanence.
• Load relays are DPDT with latching feature for maximum application versatility.
• Electronics are designed to operate on 50/60 Hz, 120 volt current with 10% over or under voltage. Special units for other voltages are available.
• Switch set pointers show switch settings at all times.
• Spring loaded friction clutch prevents operator damage of set point mechanism.
  DWYER A3000 00N PHOTOHLC GGE 0-0.25 Inch WG240V Photohelic Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic gage design. The Photohelic 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. Choose from full scale pressure ranges from a low 0-.25 (0-6 mm) w.c. up to 30 psi (21 bar); single positive pressure to 6000 psig (413 bar).
Photohelic Sensing - How It Works
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.

Relay-Transformer Features
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.
Manufacture: Dwyer
Weight: GAGE SPECIFICATIONS Service: Air and non-combustible, compatible gases. Wetted Materials: Consult Factory. Accuracy: ±2% of full scale at 70°F (21.1°C). ±3% on -0 and ±4% on -00 models. Pressure Limits: -20 Hg. to 25 psig (-0.677 to 1.72 bar). MP
Dwyer
Code#:		 A3000-00N
MyTub Code#: 303546
PDF File: Download pdf brochure 0.30mb
 
rrp£661.33
save£186.00
inc vat(£570.40)

price£475.33

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Stock Check Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v check stock level here..
   
 

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Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v dwyer a3000 00n photohelic gauge 0-0.25 inch wg240v
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Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v dwyer a3000 00n photohelic gauge 0-0.25 inch wg240v
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Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v dwyer a3000 00n photohelic gauge 0-0.25 inch wg240v
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Received package on Tuesday 0710 -thank you for all the help and support not actually had control knob installed on fire yet though
...Peter Durrant
Extremely efficient and fast. Would use again.
...Andrew Jackson
Thank you for all your trouble, as I appreciate that I had asked for something a little unusual. Thanks for chasing it up when it did not arrive, and am pleased to say it arrived on Momday as promised. Once again many thanks for your effort and service. Peter Radford.
...William Peter Radford
goods received on time. Very pleased with service
...A C FOSTER BUILDING SERVICES
Very good service & tracking will use again as long as the price is good
...Kevin Baker
thanks was a pleasure doing business,and look forward to doing more in the future thanks again.
...wayne
Perfect fast delivery good communication
...Michael Wheeler
Service excellent, wwas kept informed of progress. Product delivered at time stated. Product delivered undamaged. Useful feature on web site: estimated delivery date and it was correctly estimated.
...Peter Hughes
Was kept informed of progress. Everything arrived on time and well packaged. Will continue to use "mytub" as usual.
...Mr Robert Nicholson - Best Western Pinewood On Wilmslow Hotel
Great service. Informed me via email with updates as to expected delivery and any issues. Thoroughly recommend this company.
...Alison Findlay

Why choose MyTub Limited for dwyer a3000 00n photohelic gauge 0-0.25 inch wg240v A3000-00N?

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Dwyer A3000 00n Photohelic Gauge 0-0.25 Inch Wg240v