U201-A Main board

U201-A Main board

Features :

Dual stable voltage input

Running normally on the condition of -40~~+55degree

Board-fixed EMC component

Input & output signal differentiate from system voltage individually

CPU changed only for different models

Weight:190g

100% Factory Tested.

Con Conection Con Conection Con Conection

P1 micro-swith 1 P6 power board P12 ----------

P2 micro-swith 2 P7 sensor 1 P13 display 1/A

P51 keypad 2 P8 sensor 2 P14 display 1/B

P3 keypad 1 P9 computer

P4 power board and SSR P11 display 2

This device often is installed on check valve, hose pipeline also release certain hydraulic pressure. Pipe Resonance Apart from hydraulic stock, other hydraulic components also cause a certain degree of noise in pipeline, such as vane pump, overflow valve, vapor separator, measurement transducer, solenoid valve and nozzle. Sometime pipe resonance will be generated if the inherent frequency of pipe equivalent to hydraulic pulse resulted from hydraulic components of fuel dispenser. At that time, the normal working state will be affected, which is harmful to staff’s health due to intensive noise. In order to explain this problem, the inherent frequency of pipe is introduced here. fuel dispenser fuel dispenser Pipe inherent frequency is: ω0 = kπ/2 l2 ·EJgGd+Gj (2-14) In the above formula: ω0 ── inherent frequency of pipe l ── supporting point distance E ── elastic modulus of pipe material J ── inertial moment of pipe section g── acceleration of gravity Gd── weight of pipe per meter Gj──liquid weight in per meter of pipe K── modifying coefficient K= 1-pA+mv/2π2EJA/l2 (2-15) In above formula: A ──pipe section m ──liquid weight in per meter of pipe v ──velocity of flow of liquid in pipe Several relative paramet fuel dispenser ers affect the inherent frequency of pipe in Formula 2-14. Therefore, most manufacturers pay much attention to these elements that affect pipe inherent frequency and pulse frequency of hydraulic components in the design and manufacture of fuel dispenser, making the two frequencies as much different as possible so as to appear pipe resonance in fuel dispenser. 3. Hose used for fuel dispenser There are two kinds of hose used in fuel dispenser. one is made according to GB/T10543 Rubber Hose Used for Refueling and Discharge of Airplane, connected oil indicator with nozzle; the other kind of hose is used in fuel dispenser with vapor recovery device, not only connecting oil indicator with nozzle,

tified by 2 bytes:　　 - Subnet = device type　　 - Node = 1 to 127　　 4 bin8 R( ) M　　 Heartbeat_Interval　　 (04H) (0-255) W( )　　 Time in seconds to give a heartbeat message on the　　 network.　　 0 = no heartbeat generated　　 Please reference the respective IFSF Application Protocol　　 description for details of the default Heartbeat_Interval to　　 be used when d fuel dispenser e fuel dispenser vice has been reset or the current　　 Heartbeat_Interval value has been corrupted.　　June 2005 IFSF - STANDARD FORECOURT PROTOCOL FP2_1.89　　 COMMUNICATION SPECIFICATION　　 Page: 29　　 5 bin8 R( ) M　　 Max_Block_Length　　 (05H) fuel dispenser (32-228) W( )　　 The range for the block length is 32 to 228 byte. Messages　　 that are longer are split into appropriate sized blocks.　　 Please note that to achieve complete interoperability　　 between IFSF devices utilising the LonWorks and standard　　 LonWorks devices the Max_Block_Length must be set to　　 32 bytes.　　 The default value (i.e. the value after a reset of the device)　　 of the Max_Block_Length is 32 bytes.　　 COMMANDS　　 11 bin8 bin

ore pointed. As Americans prepared to celebrate Independence Day, Kirk Kerkorian, a billionaire investor who owns nearly 10% of the world s largest carmaker, suggested that the best hope for General Motors was to join Renault and Nissan. A symbol of American commercial might needed rescuing by France and Japan. The reclusive Mr Kerkorian is GM s largest shareholder—and a restive one, too. For over a year, he has been pressing GM s chairman, Rick Wagoner, to turn the firm around. In particular, Mr Kerkorian and his sidekick Jerry York—veteran of turnarounds at Chrysler and IBM—wanted Mr Wagoner to endorse targets and a timetable for reversing GM s decline. At the Detroit Aut fuel dispenser o fuel dispenser Show in January, Mr York damned Mr Wagoner with faint praise and eulogised Carlos Ghosn, chief executive of Renault and Nissan, for saving Nissan with ambitious targets that he hit early. Mr Ghosn s secret is to form cross-functional teams, have them draw up detailed plans and then enforce them. He made it work at Michelin in Brazil and America, at Renault in France (where he was called “le cost killer�, and most famously at Nissan in Japan, where he was parachuted in after Renault took a stake in the ailing company in 1999. At the time, Bob Lutz, now GM s vice-chairman, likened the investment in Nissan to fuel dispenser filling a container with $6 billion in gold bullion and sinking it in the Pacific. GM s losses have since far exceeded that sum, whereas Nissan has notched up the best profit margins in the industry. With GM s sales and domestic market share sliding, Mr Kerkorian decided to act. His filing with America s Securities and Exchange Commission outlined a plan that would make GM the third leg in the alliance between Renault and Nissan. The stockmarket value of Renault alone is nearly double GM s, so the duo could easily afford a joint 20% stake. “Such a global alliance,�the filing declared, “has the potential to materially strengthen the competitive positions of all three companies.� Mr Kerkorian