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

ds of gear pumps. The following introduce cycloidal gear pump: Diagram 2-8: Two kinds of internal gear pumps Gear pump structure Diagram 2-9 is an exploded drawing for inner cycloidal gear pump. Inner cycloidal gear pump mainly composed of frame, gear-group, overflow valve, strainer, pump cover subassembly, etc. pump chamber fuel dispenser is cylinder-shape in which strainer is installed at inlet of oil. Overflow valve and pump is in parallel connection. Concentric installation is between pump chamber and exterior gear-group, between inner gear and principal axis. But inner gear and outer gear is assembled centrifugally. Principal axis drives gear-group rotate. Gear pump has two chambers --- pressure oil chamber that discharge oil and suction chamber that suck oil—which are not connectable. When gear pump operating gear-group rotate anticlockwise at view of pump cover direction. Delivery pressure depends upon the adjustment of overflow valve, laden degree and inner penetration. In the process of nozzle open, small oil resistance, overflow valve is in low status of openness. However, as nozzle turn down or large oil resistance and pressure, the spring of overflow valve move sideward, increasing openness so that more oil flow into negative chamber. The outlet pressure of pump keeps under 0.3Mpa. Working principle of overflow valve The outlet of overflow valve is the interface in where pressured oil chamber pass into suction chamber. The overflow valve play role as a protection to restrict the highest pressure in hydraulic system and to adjust delivery volume of fuel dispenser. Its structure is illustrated in Diagram 2-9. Motor driving pump starting work, the pressured oil from pressure area flow into vapor-separator and overflow valve outlet via pump outlet. Given switch nozzle, part of oil flow out of pipe o fuel dispense fuel dispenser r f vapor separator, another part of oil flow into suction chamber via overflow valve with small openness. However, as close down nozzle, pressured oil overcome spring bounce under high pressure in hydraulic s

he decrypted data in clear text in the　　 controller the controller is always a possible target of attack.　　 The method used to provide the initial key in the COPT is to calculate the key at both　　 the COPT and the controller. This method involves the transmission of intermediate　　 da fuel dispenser ta between the controller and the COPT. In order to prevent discovery of the　　 encryption keys by monitoring the transmission link the COPT implements the　　 algorithm termed Exponential Key Exchange . This method is shown below.　　June 2005 IFSF - STANDARD FORECOURT PROTOCOL FP2_1.89　　 COMMUNICATION SPECIFICATION　　 Page: 37　　 Controller COPT　　 Controller calculates COPT calculates　　 R = mod q(a to the r power) S =mod q(a to the s power)　　 Controller encrypts R under the default key COPT encrypts S under the　　 Controller sends encrypted R to the COPT default key　　 COPT sends encrypted S to the　　 Controller　　 Controller calculates COPT calculates　　 KD = mod q(S to the r power) KD = mod q(R to the s power)　　 KEK = f(KD) KEK = f(KD)　　 Note: The mod q operation finds the integer remainder after long division by　　 q of (a to the r).　　 fuel dispense fuel dispenser r a and q are large prime numbers (128 bits minimum) known to both the controller　　 and the COPT. Their exact value is not and does not

d roundabouts, but I do remember that my school bus used to circle three along the A128 in Essex in the early 1950s. A regular pastime on winter mornings was counting the cars that had crashed by failing to navigate them on the previous foggy night. Peter Spurging Seattle © 2006 .  fuel dispenser About sponsorship Sudan Glittering towers in a war zone Dec 7th 2006 | EL-FASHER, JUBA AND KHARTOUM From The Economist print edition Eyevine Oil could break or make Africa s largest country. But at the moment there is more breaking than making Get article background AT THE confluence of the White Nile and the Blue Nile in Khartoum lies Africa s largest commercial construction site. Across 1,500 acres, at a place called Alsunut, Sudanese and Chinese workmen are working in shifts around the clock to build a new Dubai a vast complex of gleaming offices, duplexes and golf courses that will turn Khartoum, it is hoped, into the commercial and financial hub of Islamist east Africa. The first tower of this $4 billion development, due to be finished by next October, will be the headquarters of the Greater Nile Petroleum Operating Company. Close behind, in a building shaped like a sail, will rise the headquarters of Petrodar. Both these companies—Chinese, Malaysian, Indian and Sudanese joint ventures—are pumping out Sudan s oil, most of which is being bought by China. A Sudanese company, DAL Group, is investing about $700m in the infrastructure for the project, but the buildings themselves are being put up by their new owners, a Who s Who of the oil-producing Arab world and oil-consuming Asia. All the Gulf states are buying plots. Khar fuel dispense fuel dispenser r toum is not only awash in its own oil money, but is also mopping up some of the surplus petrodollars of the Middle East. The Kuwaitis, the Malaysians and the Chinese are well represented. A Pakistani gr