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

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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.

re approval working successfully being conducted. Environmental temperature as approval should keep in the range of �0�to �0� in approval process temperature not exceed 3� relative temperature between 30�and 90� power supply within �0% to �5%; and fuel dispenser fr fuel dispenser equency ±1Hz. The mediums used in approval should adapt real media excepting in factory approval. As different medium would be adaptable to fuel dispenser, every medium should be appraised. Some of them are prohibited, especially water. The highest temperature of medium in approval should not exceed 30� the lowest temperature without coagulation. The temperature difference between the one at the outlet of fuel dispenser and the temperature measured in standard instrument should not exceed 4� Otherwise, the approval is invalid. Standard instrument used in approval whose measuring accuracy no lower than one fifth of the allowed tolerance of fuel dispenser, should pass over appraisal of the Measurement Department and be valid within period. There are many standard instruments being adaptable to fuel dispenser’s approval, however, the most popular one is standard metal instrument of measurement. Standard metal instrument of measurement adapted in a fuel dispenser pproval should, in accordance with the requirement of fuel dispenser’s regulations and procedure, be Class II standard metal instrument of measurement with cubage no less than one minute’s discharge volume of fuel dispenser, approval period being 3 years. Standard metal instrument of measurement often is made of stainless steel or carbonized steel with protecting painting, no air vent, erosion-resistant and smooth surface. Its structure is shown in Diagram 8-1. 1: Overflow cover 2: Metering neck 3: Body 4: Bracket 5: Adjusting bolt 6: Drain valve 7: Leveling instrument 8: Scale Diagram 6-1: Sketch map of metal standard instrument of measurement Standard instrument of measurement is composed of overflow cover, body, measuring neck, scale, valve, which should meet the follo

Dimensions in millimetres　　 Key　　 2 Non hazardous area　　 3 Continuous　　 Zone 1: category 2 e fuel dispenser qui fuel dispenser pment　　 Zone 2: category 3 equipment　　 Figure 6 Nozzle boot area top view　　 Fuel from the nozzle boot can spread along any return surface of or to a non-hazardous area. Means　　 5.2.4.4　　 shall be provided to ensure that any such fuel is prevented from:　　 � entering any non-hazardous area or　　 � from becoming trapped on surfaces or glands below.　　 5.3 Safety requirements protective measures construction and performance　　 5.3.1 General requirements　　 5.3.1.1 General　　 Metering pumps dispensers and remote pumping units shall comply with the safety requirements　　 5.3.1.1.1　　 andor protective measures of this clause. I fuel dispenser n addition the machine shall be designed according to the principles of　　 EN ISO 12100-1 and EN ISO 12100-2 for hazards relevant but not significant which are not dealt with by this　　 document (e.g. sharp edges).　　 NOTE For hazards which are to be reduced by the application of a B-level standard such as EN 13463-1 EN 60730-2-10　　 EN 60529 and EN 60204-1 the manufacturer should carry out a risk assessment to establish the requirements of the B-standard　　 which are to be applied. This specific risk assessment is part of the general risk assessment of the machine.　　 Where the means of reducing the risk is by the physical arrangement or positioning of the

his week by the Pew Research Centre says that Americans who see Muslim-Western relations as “generally bad�outnumber those who take the opposite view by 55% to 32%. Not exactly cheery. But in Germany the pessimists are ahead by 70% to 23%, in France by fuel dispenser 66% fuel dispenser to 33%, and in Britain by 61% to 28%. Some things are off-limits even in America. In Britain, for example, members of the radical (but non- violent) Hizb ut-Tahrir movement have appeared on television to express their rejection of the principles of liberal democracy and secular justice. That is unlikely to happen in America. Nor would it be possible, in any American context, to argue for the superiority of sharia—Islamic law—over laws passed by elected law-makers. But the right to say almost anything on most other subjects is deeply entrenched in America. This means that, whatever weapons the parties in America s religious arguments try to use, they do not usually include attempts to deny the other side s right to speak. The result is that there is more space for hard religious argument. No law restrains that quite large body of American thought which is critical not just of extreme readings of Islam but of Islam itself—arguing that t fuel dispenser he warrior ethos of the faith s earlier centuries was one of its essential features, not just a regrettable excess. But the American system also guarantees the rights of those who argue for the opposite view that Islam is basically a peaceful, universalist faith which restricts rather than enjoins the use of violence. This does not mean that America has a monopoly of wisdom in distinguishing peaceful Muslim citizens from the other sort. During the 1990s, a Washington-based group called the American Muslim Council and its leader, Abdurahman Alamoudi, were hailed by the American government as valuable people to talk to. In 2004, Mr Alamoudi was given a 23-year jail term on terrorism-related charges. But one merit of the American system is that, even when hard questions arise about the trade