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.

reclaimed into tank relying on the special device on nozzle and via nozzle and motor. Non-burn system is widely adopted recently, vapor reclaiming in tank. In principle, the proportion of vapor and oil is 1 to 1, namely, each 1L oil decrease correspond to 1L vapor reclaimed to tank. A good capacity vapor recovery device should applicable to various kinds of vehicle inlet. In domestic market vacuum-aid vapor recovery is widely employed recently. Diagram 4-2: Pipeline Installation of Phase I Vapor Recovery Diagram 4-3: Phase II Vapor Recovery System Safety distance of vapor recovery system The safety distance between filling station that installed vapor recovery sy fuel dispenser stem and nearby construction and road could reduce by 30% that of non vapor recover system. Equipment deployment of vapor recovery system 4.1 The difference among various brand vapor recovery equipments are dealt method to vapor volume and refuel volume, dividing as the following three types: Adopting adjusting valve to regulate vapor influx: this method utilizes the pressure generated by oil flow to control air inlet, speed flow large air inlet, vice versa. Adopt electric pulse signal: to control frequency-varying motor through pulse signal, rotation of motor depend upon that of electric pulse. The type also reach 1 to 1 ratio of vapor recovery, mounting computer board. Adopt after-deal system: large amount of vapor and air is suck to tank using vacuum pump, in tank abundant vapor and air being burn or reclaimed. Main components in vapor recovery system. The system includes vacuum pump, separated jointer, breakaway valve, coaxial hose and nozzle. Vacuum pump: there are two kinds of pumps----- centre-type reclaiming vacuum pump and distributed reclaim vacuum pump. Center-type reclaiming vacuum pump: adopt one or two vacuum pumps reclaiming vapor into tank, including power type and non-power type. fuel dispense fuel dispenser r Diagram 4-4: Center-type vacuum pump Diagram 4-5: Vacuum pump Center-type reclaiming vacuum pump

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not been very thoroughly explored. Only 2,000 wildcat wells have ever been dug in the countries around the Gulf, according to Leonardo Maugeri, an Italian oilman, compared with more than 1m wells in the United States. But if the amount of oil at state oil companies disposal is not much of a worry, the way they manage it certainly is. Few of the princes, politicians and strongmen who wield ultimate authority over these firms can resist the urge to meddle. At best, that leads to the sort of inefficiencies found at most state-owned firms overstaffing, underinvestment and so on. At worst, the business of pumping and selling oil is entirely subsumed by politics, as fuel dispenser in the case of Petróleos de Venezuela, one of the biggest NOCs (see article). In either case, NOCs produce less oil, more expensively, than they should. The people s oil, not the bureaucrats That is bad for consumers, of course, in so far as it pushes up the price of oil. But it is also bad for oil- producing countries, which could be squeezing more profit from each barrel if their NOCs were more efficient. Moreover, there are several NOCs not bound by OPEC quotas, such as Mexico s Pemex and Russia s Rosneft, which would love to boost production to take advantage of the current high price, but are struggling to do so. The easiest way to improve state oil firms performance would be to privatise them. The authorities, no longer torn between nurturing their NOCs and milking them for all they are worth, could concentrate on maximising their oil revenue through taxes and royalties. Failing that, governments could instil a little market discipline by subjecting their NOCs to competition, either by encouraging them to expand abroad or by allowing foreign firms some access to their home territory. At least, they should grant NOCs operational autonomy, and allow them to retain and invest some por fuel dispense fuel dispenser r tion of their earnings. The less bureaucrats interfere, after all, the more money their oil companies will generate for them to spen