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

on, used to on duty or off duty or refueling for person who hasn’t card. Management card Hold by station owner, management card is used for station management. Pump-verifying card Hold by station master or manager, it is used to verify pump in troubleshooting. Maintenance card Hold by station or superior firm, it is used as maintenance of fu fuel dispenser el dispenser. Parameter card The card is used as presetting parameters such as density, volume of pre-close valve. PSAM card PSAM card is employed to verify the validities of above cards, which is installed in reader of fuel dispenser. Fuel dispenser doesn’t work without RSAM card. There are many card seats for using on fuel dispenser. Card-controlled fuel dispenser Card –controlled fuel dispenser actually is the one mounted an IC card reader. At present, most of card-fuel dispenser integrated keyboard and card reader, realizing the combination of balance with IC card. 5.1 Structure of IC card reader for fuel dispenser Diagram 3-26: Basic structure of IC card reader In above diagram, CPU, adopted 32K byte memory, is core component in reader, which controlled all functions of reader. Port I is used for communicating fuel dispenser and realizing control manipulation such as readout filing data from fuel dispenser, download unit price and transmit operating information to fuel dispenser through keyboard. Port II is responsibl fuel dispenser e for exchanging filled data with station’s supervision computer and transmitting filing record to background; readout important information from supervision computer such as black and white list, unit price and enquire bl fuel dispenser acklist and greylist. Memory is used to store filling record, blacklist and whitelist. Clock circuit provides the time in which filing record is generated. Matrix liquid crystal screen displays data prompting user and balance of card. PSAM card group contains PSAM card that is used for safety attestation and data encryption. User socket is used to insert IC card; card lock is insta

A heartbeat has been received from the CD within the expected　　 time frame (3 x Heatbeat_Interval).　　 Transaction Buffer - The finished fuelling transaction is stored in a transaction　　 buffer.　　 Payable Transaction - A Pa fuel dispenser yable Transaction is a finished fuelling transaction which　　 must be cleared by a Controller Device.　　 Zero Transaction - A Zero Transaction is a finished fuelling transaction where the　　 displayed volume and amount have the value of 0.　　 Outdoor Payment OPT A hardware device where the customer tenders payment for　　 Terminal fuel that is located outside a building.　　 Protocol Converter PCD A hardware device that converts the IFSF Dispenser protocol　　 Device into a proprietary pumpdispenser protocol. This enables an　　 IFSF compatible SCCD to control non IFSF compatible　　 pumps.　　 Proprietary Pump PPP A non-IFSF protocol developed and owned by the dispenser　　 Protocol manufacturer.　　 Tank Level Gauge TLG A hardware device which measures the fuel dispenser contents of a tank.　　 Logical Node Address LNA The LNA is the address that identifies a device on the IFSF　　 network. The LNA consists of two bytes (Subnet Node　　 fuel dispenser Address).　　 Please reference the IFSF document PART II　　 COMMUNICATION SPECIFICATION for more details.　　 Physical Node Address PNA The PNA is the physical address that is used to physically　　 addres

nfluenza will change from one that can be controlled with moderate effort to one that needs several strategies applied vigorously. If Ro exceeds 1.9, the authorities must be prepared to enforce a combination of behavioural changes, such as school closures and travel restrictions, and distribute antiviral drugs and the best available vaccine. The most fuel dispenser unexpected finding of the study, however, is how useful even a weakly effective vaccine could be. At any value of Ro that is less than 1.9 such a vaccine, if widely deployed, could markedly slow the progress of the disease and limit the number of sick people to less than 10% of the population. This means that useful vaccines might be produced in anticipation of an epidemic, simply by guessing which strain might eventually emerge. As long as the guess was approximately right, the resulting vaccine would confer enough protection to break the chain of transmission. Also, Dr Germann s paper suggests that even when two doses of a vaccine are needed to give an individual full protection, it is more efficient, from the point of view of stopping the epidemic, to vaccinate twice the number of people with a single dose. These results emphasise the importance of today s research into human vaccines for H5N1, the most threatening strain of lethal bird influenza. Unfortunately, a vaccine trial in America last week gave only disappointing results, w fuel dispenser ith an immune response in less than half of the people given two huge doses of antigen—the active ingredient in a vaccine. However, many other vaccines are in development, and GlaxoSmithKline, a big drug company, says th fuel dispenser at it is testing ways of using small doses of bird-flu vaccines in which the potency has been boosted by the addition of a chemical adjuvant. There may not yet be a way to stop a pandemic, but people are certainly looking hard. © 2006 . Palaeontology A fish out of water Apr 6th 2006 From The Economist print edition A newly discovered step on evoluti