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Dwyer A3000 60pa Photohelic Gge 0-60pa240v

Dwyer Instruments Magnehelic Gauges - Dwyer A3000 60pa Photohelic Gge 0-60pa240v

28% 28 percent off rrp

Department: Dwyer Instruments Magnehelic Gauges
  Dwyer A3000 60pa Photohelic Gge 0-60pa240v
    • 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 60PA PHOTOHELIC GGE 0-60PA240V 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).
Dwyer
Code#:		 A3000-60PA-230V
MyTub Code#: 303863
PDF File: Download pdf brochure 0.30mb
 
rrp£661.33
save£186.00
inc vat(£570.40)

price£475.33

Free UK delivery
email for overseas delivery charges

Stock Check Dwyer A3000 60pa Photohelic Gge 0-60pa240v check stock level here..
   
 

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Thank you for a great service, when its still so rare to get it! You kept us updated from start to finish with the order and it arrived whe you said it would. We will defintely use you again.
...BDP
Great service from placing the online order through to delivery of the item ordered.
...Michael Gullis
Excellent customer care and service from your front office staff.
...John Douglas
Excellent service, delivered on time with communication answered immediately. Checked around the product elsewhere, only MyTub has what I needed. Website and communication portal easy to use and understand. Definitely coming back :
...Benjamin Kirk
Thanks, Armando McCray for mytub.co.uk
...Armando McCray
I never realize thah i will get spare so quick with in 24 hours. Thanks for very good service and keep it up. I will deall with you in future if I need you thanks again and kind regards M Vadher
...Mr Mohanlal Vadher
Good service. The pedestal was damaged when it was delivered last Friday - as the driver managed to let it slip out of his hand onto our driveway. However, a replacement was delivered within a few hours. Overall very satisfied.
...James Ball
first class shop, plus web site. thank you
...pat cooper
Delivered a day early, cheapest price on the internet.
...Nicholas Jones
good service, quick to reply to messages, only suggestion is that the boxes are clearly labelled for the attention of a person and not a company and therefore not getting misplaced but other wise a good service will use again
...HomeServe

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Dwyer A3000 60pa Photohelic Gge 0-60pa240v