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

e, low cost and convenient maintenance, vane pump is widely adopted in many industrial areas. Most of domestic manufacturer of fuel dispenser install vane pump as component. Vane pump includes ration pump and variable pump, the former is mounted in fuel dispenser. At recent years, the domestic noise research for vane pump has been achieved good progress conducted by fuel dispenser manufacturer. The noise of vane pump has remarkably been downed, reaching to less than 70 d B. it is introduced as followed: 1: Cap nut 2: Adjusting bolt 3: Spring seat 4: Spring 5: Blade 6: Rotor 7: Plug 8: Spring flake 9: Axis 10: Frame 11: Overflow valve 12: Valve seat Diagram 2-1: Vane pump structure drawing Structure and working principle of vane pump The Diagram 2-1 and 2-2 illustrate one kind of vane pu fuel dispenser mp about its structure and tridimensional exploded drawing. This kind of pump prevails in domestic fuel dispenser market. Its structure, principle and maintenance will be introduced. Vane pump consists of overflow valve and vane pump illustrated in Diagram 2-1. Overflow valve is installed on the upper of body, including overflow valve seat, vale core, spring, spring bracket, jointer, adjusting bolt and cap nut. The lower body is pump section composed of gliding bearing, rotor subassembly, blade set, spring flat and pump cover with gliding bearing. The right side of diagram is inlet, the opposite outlet. The working principle, performance and common troubleshooting of vane pump and overflow valve will be presented respectively. Vane pump section The chamber in where rotor installed is pump chamber, its installing procedure showed in diagram 2-3. A centrifugal degree e between the center of chamber and rotor is illustrated in diagram. There are upper and down seal area, high pressure and low pressure transitional area, divided by the center of rotor. The angular degree in sealing area is larger than that of degree formed by the neared two vanes so as to prevent oil flow between low and high pressure areas. 1-Cap fuel dispenser fuel dispenser

nd position (Default).　　 Note: If this value is changed while there are codes that　　 have been issued the CGD will not change the code　　 numbers that have been issued. This CGD uses this　　 field only for issuing of codes it is not used for any　　 other code functions.　　Data_Id Field Type ReadWrite in State MO　　 Data Element Name　　 Description (CGD_State)　　TOTALS　　Data_Id Data Element Name Field Type ReadWrite in State MO　　 Description fuel dispenser (CGD_State)　　 20 Bin32 R( ) M　　 CGDSC_LifetimeTotalCodes　　 This stores the number of codes that the CGD has (0　　 stored over its lifetime. (Non-resettable) 4 294 967 29　　 5)　　 21 Bin32 R( ) O　　 CGDSC_LifetimeTotalTransactions　　 Only required if Transactions used to access code (0　　 database. This stores the number of transactions which 4 294 967 29　　 the CGD has performed over its lifetime (Non- 5)　　 resettable)　　COMMANDS　　 80 Byte W(2) M　　 CGDSC_InitializeSystem　　 This will clear out all memory and place the CGD in a　　 brand new configuration. This must be sent two times　　 within 3 seconds t fuel dispenser fuel dispenser

e and run very profitable businesses,�says Tito Alai of Celtel, part of the MTC Group. MTN is the largest operator in the region as a result of its $5.5 billion acquisition in May of Investcom, a company with stakes in several Middle Eastern operators. MTN s boss, Mr Nhleko, says the firm will focus on Africa and the Middle East, where there is plenty of room for growth. MTC expanded in the other direction, from the Middle East into Africa. The Kuwaiti firm bought Celtel, which runs networks mainly in east Africa, for $3.4 billion in 2005. It has since purchased a stake in a Nigerian operator and arranged a $4 billion credit facility to pay for further expansion. Until last month Vodacom was prevented from expanding north of the equator by a pact between its British and South African fuel dispenser parents. But the deal has now been scrapped, so Vodacom is on the move. This week its chief operating officer, Pieter Uys, said it was targeting Algeria, Nigeria, Ghana and Angola. Etisalat, the UAE s partially state-owned operator, bought a 50% stake in Atlantique Telecom, which operates throughout west Africa, in April 2005. It has also expanded into Pakistan and Afghanistan, and in July it paid $2.8 billion for Egypt s third mobile licence—a staggering sum that only a year ago would have purchased an entire regional operator. As others pile into Africa, Orascom has been pulling out, having sold its stakes in a dozen African operators. It is now targeting “highly populated, under-penetrated markets,�says Ossama Bessada, a senior executive at the Egyptian firm. It has operations in the Middle East, Pakistan and Bangladesh, and plans to bid for a licence in Saudi Arabia next year. Naguib Sawiris, Orascom s chief executive, also owns Weather Investments, which paid �2.1 billion last year to take control of Wind, Italy s third-largest mobile operator. Meanwhile, operators in Saudi Arabia, Qatar and Oman are hunting around for acquisitions too. Targets include Millicom, which was almost bought fuel dispenser fuel dispenser