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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.


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.


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


Color Channel plug

Red +5V 2

Green CH1 3

Blue CH2 4

Yellow 0V 5


Cross Weight Dimension

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


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


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

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technical archives

    o lock black card; Overdraft prevention Fuel dispenser will not start if balance of IC card is less than the minimum value prescribed; Fuel dispenser will automatically stop filing when the balance of IC card reach the minimum prescribed in whichever filling mode, and deduct turnover according to real volume; Identifying card type Automatically identify type of IC card, provide prescribed service for each card according to system presetting; No filing to exterior system card; Non-local card not access to filling in offline state; Any operation can be done by exterior staff; Operation of pump verification (optional) The function of this card is similar to driver card, which is subject to prescribed filling station; Deduction record should transmit to the background of filling station. Its record format is same to that of driver card; The solution methods of put-to-grey and grey sign erasion are same to that of staff card. Inquiry of basic information Display holder’s name; (optional) Inquiry of balance; Password application Supporting password requirements (has or hasn’t password) Prompting password covert enter; Press ‘confirm?key to finish password enter; If the time input password exceeds prescription, IC card will be lock automatically and invalid to any fuel dispenser; Many personnel employ one password; (optional) Anti-inappropriate operation Convenient to modify inappropriate operation; System will give an alarm to again enter data as presetting value beyond balance; if don’t change that, fuel dispenser only operates at prescribed minimum value; Fuel dispenser keyboard is locked in filling process; If IC card is pulled out in filling process fuel dispenser will immediately stop. Only after turnover deduction can IC card is used again. Staff operation Filling station staff access to register on-duty or off-duty through keybo fuel dispenser ard and staff card on fuel dispenser IC card fuel dispenser or centre controller; Get statistic data of turnover in on-duty time; Access to su fuel dispenser

technical specification

    293) normalement suivi dune session t l param trage.   9.2.4. Gestion des couples demande-r ponse R ╣les pour l automate   La liaison logique est g r e sur la base des couples demande-r ponse avec les r ╣les   suivantes:   lors de l mission dune demande par un automate:   sur le canal de service   sur un canal application et pour une transaction donn e1   une temporisation dattente est arm e   en cas d coulement de la temporisation avant r ception de la r ponse correspondante   par lautomate la liaison est d clar e rompue et une proc dure d tablissement de   communication est lanc e   une r ponse re e hors d lai est ignor e (sachant que dans ce cas la r ╣le   pr c dente sest pr alablement appliqu e)   la r ception dun message qui ne peut 猼re associ ?aucune demande conduit ?une   d claration de rupture de liaison   la r ception dun message avec signature invalide est trait e comme une non r ponse   et conduit ?une d claration de rupture de liaison   pour une application et une transaction donn e lautomate peut mettre une nouvelle   demande alors m 猰e quil na pas re ?la r ponse ?une pr c dente (exemple:   demande denregistrement transaction non aboutie lors dune attente de r ponse   dautorisation)   toute rupture de liaison entra 畁e le d clenchement dune proc dure d tablissement de   liaison R ╣les pour la mon tique   1) les r po fuel dispenser nses aux demandes re fuel dispenser es sur le canal de service doivent 猼re mises fuel dispenser

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    d in by genetics. This is an area where fMRI has built convincingly on the original lesion studies. It has provided evidence that different parts of speech are dealt with by different parts of Broca s and Wernicke s areas. Not only are nouns and verbs processed in separate locations, but different types of noun may have their own areas, rather in the way that Dr Kanwisher s visual categories do. Such specialised locations have been claimed for categories such as animals and tools. Nor is language processing merely a matter of decrypting and encrypting sound. Deaf people who communicate using sign languages (which have all the grammatical and syntactic features of spoken language) also do their processing in Broca s and Wernicke s areas. If they suffer damage to these areas, it shows up in exactly the same way that it does in those who can hear. Taking the evidence in total, therefore, it seems likely that the Chomsky Pinker theory is substantially correct. People have a specialised language instinct. The question is, why? The Machiavellian mind It is here that theory of mind—the ability not only to hypothesise what other minds are thinking, but to hypothesise what they are thinking about what you are thinking—enters the explanation. The evolutionary value of this is that people can anticipate the actions of others in a way that helps them. But with language, they can not only anticipate the actions of others, they can try to manipulate them. This idea was dubbed “the Machiavellian mind?by two of its originators, Andrew Whiten and Richard Byrne of St Andrews University in Scotland. One of the most intriguing ideas about theory of mind comes from another sort of lesion study, an examination of the puzzling condition known as autism. People with autism find it hard to relate to their fellow human beings. Sometimes the condition is part fuel dispenser of a wider range of fuel dispenser problems, including low intelligence. But many people have autism pure and simple. Their intelligence is normal fuel dispenser