U101-A Flowmeter

U101-A Flowmeter

This type of meter is used to fuel dispensers for measurement of pressurized oil.

Materials:

Body: Aluminum (Spray-Painted)

seals: Buna-N

Technical Specifications:

Discharge rate of each revolution: 0.5L

Diameter of rotary bar: 9mm

Rotary direction of rotary bar: Clock wise

Diameter of cylinder cover: 72.4mm

Environmental condition: -40~~+70degree

Off-setting of crankshaft: 14.93mm

Travel of piston: 29.80-31.38mm

Adjusting range of piston quantity: 29.86mm

Minimum adjusting increasing quantity: 0.05%

Working pressure: 0.12Mpa-0.3Mpa

Repeat error: not exceed ±0.1%

Features :

Micro-accurate 4-piston,positive displacement type meter with rotary valve,exterior adjustment and double oil lip seal for long life.

External structure achieved by single body design of components.

Excellent accuracy: ±0.2% with high flow through-put

100% tested before Ex-Factory

Replacement Parts:

Key Description Materials

1 Body Aluminum

2 Piston kits

3 Port Cap II Cast Iron

4 Stabilizer bar II Aluminum

5 Stabilizer bar I

6 Distribute valve PTFE

7 Up cap kits

8 Sealing Ring

9 Coupling

10 Rotary bar kits Cast Iron

11 Port cap I Buna-N

12 Sealing Ring Aluminum

13 Bushing

14 Bearing 1Cr18Ni9Ti

15 Adjusting disc Kits Brass with graphite

Package:

Product ID Net Weight Cross Weight Dimension

U101-A 5.3kg/case of 1 5.5kg/case of 1 27x23x22cm/case of 1

ion without authorization; illegal disassemble or modify IC card so as to change data. Apart from the above methods there are some professional attacks mainly for operating system. IC card intellectual Prevention technology mainly contains two aspects: one is for IC card itself including physical safety; the other is for information exchange process. In order to ensure the physical safety of IC card, some safety technologies are adopted in manufacture of card base, such as laser engraving, fluorescent printing and macroline technology. As for possible attacks, chip manufacturers ha fuel dispenser ve researched many methods: Inspection of exterior voltage; Inspection of low frequency of clock; Preventing information of data bus being pick through supervision programme; Protecting memory by logical encryption; Fuse protection; Mounting encrypted calculating processor for chip. The above safety technologies are belongs to hardware aspect. Whichever technology provided for hardware platform, the prevention technologies of differential power analysis (DPA) and simple power analysis (SPA) should be considered in software. COS safety mechanism The purpose of fuel dispenser COS safety protection aims at protection information on card and exchanged between terminal and card. Therefore, safety mechanism should be able to effectively control information, which is considered in two aspects: One is to control the right to operate information, that is, who is authorized to operate information; the other is to process information itself, that is, encryption processing by which unauthorized person is unknown to its contents, even though he or she has got information. Other methods include: adopting enhanced Data Encryption Standard (DES) calculation in operating system; memory adopts special encryption; employing specific I/O technique to prevent Differential Power Analysis (DPA) attack. The control of right to operation of COS basically is divided into two categories: authentication mechanism and safety report mechanism. In real appli fuel dispenser

　2.1.3 State Idle 3　　 STATE DESCRIPTION　　 The FP is opened and no delivery has started.　　 IDLE　　 On entry to the IDLE state any outstanding transactions have been stored in the　　 transaction buffer and all fuelling parameters must have been reset to their default　　 values.　　 Note: When the IDLE state is entered with a nozzle removed it is necessary to wait　　 until the nozzle is returned before allowing fuel dispenser the state to change away from the Idle　　 state. This implies that any attempt to release the pump while the illegal nozzle is　　 removed must be rejected with a Data_ACK of 6 (Command not accepted). After　　 the nozzle is returned a new transaction is able to start.　　 EVENT DESCRIPTION　　 VALID-NOZZLE-UP The customer selects any logical nozzle and the FP moves to the CALLING state.　　 INVALID-NOZZLE- Action : The FP state change is send fuel dispenser as an unsolicited data array　　 UP FP_Status_Message .　　 RELEASE_FP The pre-authorization can only be accepted if at least one transaction buffer is　　 available. The number of transaction buffers is configured by the contents of the　　 data element Nb_Tran_Buffer_Not_Paid.　　 If there are is no unit price available any attempt to release a fuel pump should be　　 rejected with a Data ACK of 6.　　 A FP could be assigned to a CD by the contents of the data element　　 Assign_Contr_Id (Data_Id 22 in the Fuelling Point Database). If the FP is assigned　　 to a CD the FP can only be released by the CD that assigned fuel dispenser

nfluence of the secular Iraqi politicians they favoured, and unwittingly empowered religious factions by applying sectarian formulas to government appointments. Iraq s experience may be unique, yet it is far from being the only example of tension between Sunnis, who make up 85% of the world s 1.5 billion Muslims, and the multiple sects of the Shia minority. In places as far apart as Pakistan and Lebanon, a centrifugal momentum appears to be exacerbating sectarian feelings. The emergence of revolutionary Iran as an ambitious Shia regional pow fuel dispenser er, and potentially as a nuclear-armed state, has combined with the coming to power of Shias in Iraq to encourage greater assertiveness by Shias in the many countries where they have been historically disenfranchised. This, in turn, has aroused the awareness of Sunnis to what many see as strangers in their midst. Shia empowerment has been matched by the evolution of radical Sunni chauvinism. Saudi Arabia s Wahhabists, for example, have always taken a dim view of Shias, but this has been amplified by the country s oil wealth (wh fuel dispenser ich happens to be in the region where Shias live), and twisted by some into the violence of terrorist groups, such as al- Qaeda. Living together, amicably In fact, throughout most of Islam s 14 centuries, the Shia-Sunni divide has been peaceful. Geography, for one thing, largely separates the sects. Both the far west and east of the Muslim world are solidly Sunni. Moroccans or Indonesians hardly know what a Shia is. Egyptians or Bangladeshis have little knowledge of what Shias believe. Shias have tended to cluster in small, often isolated communities in the centre of the Muslim world—in the Levant, the Indian subcontinent, Yemen and the Gulf—and on the Arabic-, Turkish- and Urdu-speaking fringes of historic Persia. In terms of basic rituals, such as prayer and f fuel dispenser