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Dwyer A3000 60pa Photohelic Gge 0-60pa240v


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

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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). MP
Dwyer
Code#:
A3000-60PA-230V
MyTub Code#: 303863
PDF File: Download pdf brochure 0.30mb
 
rrp£643.47
save£193.04
price£450.43

inc vat£540.52

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...James Thomson
Good website which is very easy to navigate. Excellent prices which are very easy to pay. My only moan is why it was not possible to tell me that one item was out of stock with the manufacturer until the day delvery was due. Communication with me was good when thi happened - though too late to be practically useful as opposed to "just reassuring". Of course when youre buying over the internet, reassuring is very important when there is a glitch. All in all, a very crieditable effort by real people who do their best - which is not at all bad.
...Mr Mark Shaw
Very good service quick delivery much cheaper than Ideal standard and very good quality had some conerns about fitting but no problems at all fits nicely :D
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Absolutely fantastic service. I made my order and got a message telling me the expected date of delivery, it was delivered first thing on the morning they estimated. Would definately use again and would certainly recommend to anybody I know. Thank you MyTub.
...Robert Cameron
Great service & package arrived earlier than I thought. Only trouble is Dishwasher complettely broke down whilst waiting on the part, so had to buy another. Will you take the spray arm back into your stock as packet not even opened. Please let me know, as I will send it back if I can have a refund. Thank you Paul Shering
...PAUL SHERING
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...ADI JOITA
Goods have arrived and were in good condition.Communication regarding order status was excellent. First class service. Thankyou very much.
...Richard Potts
Very fast delivery. Product best price i could find on the net. Many Thanks Ron
...Ron Ragan
Really good service - quick and good product. Will use mytub again.
...Mrs Rita Livermore
Excellent product at an excellent price. Item able to be delivered to our builder as we were away on holiday. Well done and thank you.
...jayne baccoli

Why choose MyTub Limited for dwyer a3000 60pa photohelic gge 0-60pa240v A3000-60PA-230V?

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Dwyer A3000 60pa Photohelic Gge 0-60pa240v