U501-B Pulse sensor

U501-B Pulse sensor

This incremental shaft encoder has been designed for heavy-duty application, especially for use in petroleum & diesel dispensing environments where potentially explosive atmospheres can be expected. It features a rugged and compact construction as well as a wide selection of mechanical and electronic variations.

Materials:

Housing: Die cast aluminum alloy

Bearings: Self-lubricating sintered bronze

Features :

A high advantage in reliability and adaptability.

A large selection of shaft couplings, including couplings with built-in backlash clutch facility.

Standard sealing screws.

The fuel resistant cable can be customized regarding length.

Suit the Bennett SB-100 meter and other meters whose pulse per circle is 60.

100% EX approved and tested.

Specifications:

Power supply: 5 VDC, fixed or variable

Current Consumption: Standard 10 to 30 mA, max 90mA

Number of Channels: 2

Number of pulses: 60 ppr

Output Signal: Square wave duty cycle 50%+10%.

Phase Shift: 2 channels 90° (25% +5%)

Output Stage: NPN

Output Current: Max. 30mA

Hysteresis: Min. 0.2°

Output freq. Min. 1000Hz

Temperature range: Working -40 to 70degree

RPM: Max 3000RPM

Mounting: With 3 pcs. M4 screws

Weight: Approx. 340 gram. Excl. the cable

Wiring:

Color Channel plug

Red +5V 2

Green CH1 3

Blue CH2 4

Yellow 0V 5

Package:

Cross Weight Dimension

340g/case of 1 186x157x29mm/case of 1

Approval:

The shaft encoder has been tested and granted Ex and EMC approval.The Ex-approval is EX d IIA T3.Ex certificate number is CE991209.

Ordering Specifications:

Product ID Product name

U501-B pulse sensor

Important:

The products should be used in compliance with applicable country, province and local Laws and regulations. Products selection should be based on physical Specifications and limitations and compatibility with the environmentand materials to be handled. HONGYANG makes no warranty of fitness for a particular use. All illustrations and Specifications in this literature are based on the latest products information available at the time of publication,HONGYANG reserves the right to make changes at any time in price, materials. Specifications and models and to discontinue models without notice or obligation

ser. Axis of transducer is much flexible; installing damp seal could reduce the flexibility of shaft. Impotent spring of check valve make oil flow backward even after stop operation, which bring transducer rotating conversely. Pressure oil flow back to transducer, bring negative round. The double optical board has installed wrongly, making data jumping. Automatic stop failure as presetting volume First define which situation trouble occurred ---- in presetting volume or in presetting money. If the former is trouble, reenter unit price. If both trouble, it is need to replace new main board. Loudspeaker trouble In most case, loudspeaker is destroyed. The static voltage of SP terminal of loudspeaker is 0 V; if the data is 12V, maintainer needs to replace or repair both loudspeaker and main board. Damaged main board and wiring board also result in loudspeaker failure. Small flow los fuel dispenser t before stop operation Much little adjusting volume of main valve; Control lead of main valve is incorrectly connected to relative position; Small flow rate is lost due to main board trouble. Stop failure as put down nozzle The silicon on control board is damaged. Switch has destroyed. Abnormal MT voltage leads to the trouble. Lack of phase in motor Lack of electric phase in motor makes alarm. Electric phase is absent in junction box. Creepage Inner winding of motor id damage fuel dispenser d. Water pours into junction box or insulation decline. Outer wire is connected with the frame of fuel dispenser. Creepage of inner electric circuit due to other reasons Reliable protective circuit and earthing aren’t set in fuel dispenser. Fuel dispenser’s creepage easily result in fire and body hurt accident. Only after solve the trouble can operate fuel dispenser. Article II Pipeline failure and maintenance fuel dispenser No delivery or slow flow Filter net is jammed because of mud and sand, metal bits and waste. Cleaning filter net would deal with the trouble of loud noise and no delivery. Large amount of air flo

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blems in India. Even so, Tata Motors is pushing ahead with its one-lakh car and other firms may well follow. Bajaj, a company known for its two- and three-wheelers, has considered making a low-cost car based on a motorcycle engine. The Munjal family behind Hero Honda, a local motorcycle-maker, is also exploring the possibility of low-cost cars. And in Pakistan the Transmission Motor Company, based in Karachi, already sells a range of very basic four-wheelers for as little as $2,200, and has started exporting them to countries including Sudan, Qatar and Chile. The contrast with China s carmakers is striking. Until very recently, many domestic Chinese cars were copies of the models made by big international producers. Some even combined the front end of one brand s design with the back of another, creating something like a pantomime horse. Such knock-offs were cheap to produce, but manu fuel dispenser facturers are fast discovering the limits of this approach. The lack of underlying engineering skills makes it hard to build reliable cars, and problems typically emerge within a few months. Now that China s carmakers have started to build their own cars from scratch, their difficulties have multiplied. That is why the oft-reported plans of firms such as Chery and Geely to export cars to America and Europe in 2007 have now been postponed for several years. For the Indians, though, perhap fuel dispenser s the biggest concern should be neither foreign competition, nor emissions, nor safety, but congestion. The country s poor-quality road network is slowly improving, but it is heavily over-used. With India s transport arteries already so badly clogged, a boom in sales of low-cost cars could bring about a seizure. © 2006 .  About sponsorship fuel dispenser Anti-corruption measures Too little, too late? Dec 13th 2006 | FRANKFURT From The Economist print edition Siemens belatedly wakes up to reputation risk IT IS a dense, dramatic account of