U501-A Pulse sensor

U501-A 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+ 70 degree

RPM: Max 3000RPM

Mounting: With 3 pcs. M4 screws

Weight: Approx. 340 gram. Excl. the cable

Wiring:

Color Channel plug

Green +5V 2

Black CH1 3

Yellow 0V 4

Blue CH2 5

Red +5V 6

-- --- 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.

Package:

Cross Weight Dimension

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

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 ilable 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 t fuel dispenser ransducer, 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 v fuel dispenser oltage 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 lost 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 damaged. 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 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 fuel dispenser

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Tories were decent and well-meaning, they would continue to regard the party with a deadly mixture of indifference and contempt. Cuddly conservatism Mr Cameron has tried to change voters attitudes by taking swipes at carefully chosen targets. The fuel dispenser Conservatives are seen as too close to business? Attack shops selling provocative clothes for children and call for corporate social responsibility. Self-interested? Go to the North Pole and fret about global warming, preferably in the company of a furry animal. Too authoritarian? Suggest that louts need love and understanding. Stick to warm slogans such as “trusting people�and “modern compassionate conservatism� a fuel dispenser nd hope that the electorate s growing disillusionment with a fractious government that has been in power for nearly a decade would do the rest. Intellectually vacuous, perhaps; but also politically successful. However, transforming the Tory image from selfish and mean to cuddly and green is not enough. Successful oppositions do not just wait for governments to collapse. They accelerate the process by showing that they are ready to take over. Mr Blair did this when he won the Labour leadership in 1994, and the contrast between him and the exhausted Tories created the conditions for Labour s landslide in 1997. This does not mean Mr Cameron should set out now precisely how much a Tory government would tax and spend in 2010, or provide a detailed blueprint of how it would run the health service. What he must do, though, is define a clear philosophy and identity that will give voters a sense of what they are voting for and help shape Conservative policies. He also has to persuade voters that he leads a confident and united party. And he should move soon. By next summer, Labour will have a new leader. Until then, the government will be drifting and wrapped up in its own affairs. Mr Blair will have little authority and Mr Brown will have to wait as patiently as he can before attempting the difficult task of renewal in offic fuel dispenser