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

ur kinds of display mode: Mode I: serial BCD display, in which volume 6 digits, money or sales 6 digits, PPU or unit price 4 digits, totally 16 digits are transmitted out fuel dispenser in means of serial mode, realizing operation of memory, coding and drive in display. Diagram 3-5: Main display board figure Mode II: serial display, in which chip transmit 16 digits including volume 6 digits, sales 6 digits and PPU 4 digits, memorizing and driving in display. Mode III and IV: parallel BCD display, in which chip transmits 16 digits codes including volume 6 digits, sales 6 digits and PPU 4 digits by means of parallel, once time one digit, memorizing, coding and driving in display. Most of fuel dispenser manufacturers recently adopt BCD serial mode to design display board, only very few adopt serial display mode. 1638300217170Display board structures are illustrated in Diagram 3-6 and 3-7. Diagram 3-6: LCD display board structure with parallel drive Diagram 3-7: LCD display board structure with serial drive Being a electric component easy to be failed, the hard structure of display board is introduced in detailed. LCD basic principle and working principle Liquid crystal a stable phase between liquid and solid in terms of thermodynamics, characteristic of n fuel dispenser ot only liquidity and continuity under a certain temperature range, but crystal trait ---- long stick molecule, large proportion of width to length, a bridge between the two polarities. LCD Structure illustrated in Diagram 3-8, electrodes are made various letters, number or matrix according to different requirements. Diagram 3-8: Basic structure of LCD 8-segment LCD and drive 8-segment display tube has two drive modes of static and hour-division. Fuel dispenser usually adopt static drive mode. Static drive circuit and wave showed in Diagram 3-9, the drive mode of LCD display is varied from that of LED display. As for LED only need to connect invariable conduct or cut off voltage to control emitting or wink of LED, but for LCD should not connect inv fuel dispenser

Database Address　　 DB_Ad　　 - the database address from where the data are　　 fuel dispenser coming　　 (x = 1 to 8)　　 bin8 1 to 255 Data Identifier　　 Data_Id　　 - the identifier for the first application data　　 element which shall be sent　　 bin8 0 to 254 Data Length　　 Data_Lg　　 or or - number of bytes for the contents of the first　　 bin8 bin16 255 application data element　　 1　　 0 - 65535 - if the length is bigger than 254 see - the　　 length could be 0 (e.g. commands without data)　　 appli- appli- Data Element Contents　　 Data_El　　 cation cation - the contents of the first application data element　　 dependent dependent which shall be sent　　 b fuel dispenser in8 1 to 255 Data Identifier　　 Data_Id　　 - the identifier for the second application data　　 element which shall be sent　　 bin8 0 to 254 Data Length　　 Data_Lg　　 or or - number of bytes for the contents of the second　　 bin8 bin16 255 application data element　　 1　　 0 - 65535 - if the length is bigger than 254 see - the　　 fuel dispenser

t money into alternative investments. Competition in the market is rising, both from other private- equity funds and from corporate buyers, which because of rising in fuel dispenser terest rates may beat heavily indebted private-equity funds on more deals. Private-equity firms are increasingly trying to differentiate their strategies, either by geography or industry. In these uncertain times, one of the questions facing even the big players is what the market will look like in three or four years, when their funds mature. As for the present, says one fund manager, “this is a great time to be exiting.� © 2006 .  About sponsorship World trade Doha s last stand Jun 22nd 2006 | WASHINGTON, DC From The Economist print edition Critical days for the global trade talks “WE RE committed to a successful round. And it s going to take hard work.�George Bush s comment this week on the Doha round of global trade talks sums up the official line in most capitals. Of course Doha must succeed, goes the mantra; yes, it will be a hard slog. The next few weeks will determine whether this mantra means anything. Trade ministers gather in Geneva on June 29th for a last-ditch attempt fuel dispenser to agree on a “framework�for freeing trade in farm and industrial goods. Negotiators have been haggling over such a framework, which will define just how tariffs and subsidies are to be cut, for more than four years. They have set themselves—and missed� endless deadlines. So why expect a breakthrough now? The only reason for hope is that all sides may finally realise that they can procrastinate no more. Most trade talks drag on for years. The Doha round cannot, because Mr Bush s fast-track negotiating authority, which prevents a trade deal being unpicked by Congress, expires in June 2007. To meet that deadline, an agreement must be reached by the end of the year; its broad outlines need to be in place before negotiators pack up fuel dispenser