D-G2Q FUEL DISPENSER

D-G2Q FUEL DISPENSER

FlowMeter Type: Optional

Accuracy : ±0.2%

Pressure Loss (kg/cm): Under 0.25

Motor Voltage(V) :110V/220V/380V,50Hz/60Hz

Capacity(hp): 1HP(0.75kw)

Input Voltage: 110V/220V/380V,50Hz/60Hz

Nozzle: Auto Shut-off Nozzle

Environmental Condition: -40~~+55degree

Control Type: Solenold Vale Control Type

Preset: Function Provided(Small LCDIndicator)

Display(Counter) :Type LCD and Bright Backlight

Digit of Volume : 0~~999,999(6 Digits),Decimal point can be changed

Digit of Amount :0~~999,999(6 Digits),Decimal point can be changed

Digit of Unit price: 0~~9999(4 Digits),Decimal point can be changed

Digit of Total Range :0~~99,999,999,99

Optional Display: Type LCD and Bright Backlight

Digit of Volume : 0~~99,999,999(8 Digits),Decimal point can be changed

Digit of Amount : 0~~99,999,999(8 Digits),Decimal point can be changed

Digit of Unit price: 0~~999999(6 Digits),Decimal point can be changed

Digit of Total Range :0~~99,999,999,99

Totalizer :1~~9,999,999

Hose 4.5m

Weight : 215kg.

Dimension(L×W×H) : 900*620*2180(mm)

Dimension(L×W×H)Of Qty of Container : 40ft: 45 20ft: 22

used to keep a certain position to refuel. fuel dispenser Working principal Pressured oil flow into the chambers in where main and vice valve located after switching main valve and flow out of spout because vice valve is fuel dispenser opened. Liquid flowage reduces the static pressure and the pressure in upper chamber of switch. The pressure on the chambers of upper and low switch membrane are equivalent due to the front of spout communicating atmosphere. When inlet vent is flooded by oil, the lower chamber of switch membrane still keeps atmospheric pressure. Thus, pressure difference is generated between the upper and lower chambers of switch membrane, the membrane and auto-shut level moving upward, auto controlled level moves downward under the function of switch handle. Finally, steel ball is driven into the hole of auto controlled level; switch handle continues to move downward; main valve is closed. In order to form the auto-shut function, two oil passages with different sections should be set (See Diagram 2-32). Here the Bernoulli equation as followed in order to explain the principle of auto-shut: �? = 12 ρv12+ρgh1=�?+12ρv22+ρgh2 (2--6) Among the above formula: ρ── oil density �?── pressure in main valve passage v1 ── velocity of flow in main valve passage h1── height of main valve �?── pressure in vice valve fuel dispenser v2── velocity of flow in vice valve passage h2── height of vice valve Diagram 2-32: Auto-shut nozzle Due to small nozzle body, it could be regarded as a horizontal pipe, that is h1= h2 From Formula 2-6: �?－ｐ2�?2ρ(v22－v12) (2-7) According the following Formula: v1v2=A2 A1 In the Formula: A1 ── section of main valve passage A2 ── section of vice valve passage The Formula can be converted into: �?－ｐ2�?2ρv22 [1�?A2A1)] It is known from Formula 2-8 that if A2 / A1 is certain value, P2 becomes a negative value when velocity of flow increasing a certain extent, that is, P2 smaller than at

fuel dispenser Page: 17　　 PRICE POLE DATABASE　　 DB_Ad fuel dispenser = PP_DAT (01H)　　 Data Element Name　　 Data Field Type ReadWrit MO　　 Description　　 _Id (Values) e in State　　 51 asc3 R(1-2) M　　 PP_Model　　 To allow the CD to interrogate the price pole model.　　 52 asc3 R(1-2) M　　 PP_Type　　 To allow the CD to interrogate the price pole type.　　 53 asc12 R(1-2) M　　 PP_Serial_No　　 To allow the CD to interrogate the price poles serial　　 number.　　 54 asc12 R(1-2) M　　 Appl_Software_Ver　　 To allow the CD to interrogate the version number of the　　 application software. fuel dispenser The Appl_Software_Ver number　　 format is 9999999999.99.　　 58 bcd12 R(1-2) M　　 Protocol_Ver　　 To allow the CD to interrogate the version number of the　　 protocol being used by the price pole. The Protocol_Ver　　 number format is 9999999999.99.　　 61 asc4 R (1-2) M　　 SW_Checksum　　 To allow the CD to interrogate the checksum of the　　 software. The field

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