U401-B Solenoid Valve

U401-B Solenoid Valve

Materials:

Body: Brass

Approval: EX mⅡA T4

Technical Specifications:

Power:AC220 V,2×4W

Diamter:1"

Current :big flow valve 18mA

small flow valve 18mA

Allowed flow rate:90L/min , Max flow rate: 90L/min , Mini flow rate:5L/min.

Working pressure:0.035-0.035MPa

Environmental Condition: -40~~+70degree

Package:

Product ID Weight Dimension

U401-B 2.1kg/case of 130 ×116× 80mm/case of 1

. Oil in separating chamber fail to flow into low pressure chamber because return valve is jammed due to big floater split and much waste in return valve. Many operations without refueling lead to overflow in exhausting pipe. Fuel without data count Pin installed on the elbow of measurement transducer has broken. Replace new elbow or pin. It has some wrong in count pulse of transducer though axis is still rotated. Inspect wiring of double opticaleletric pulse, main board and chipset. Confirm that whether trouble of short circuit on wiring board. 11. Although fuel dispenser normally discharge display screen don’t show data. Failure in PPU change Using multimeter examines parameter lock whether open or closed. Computer of fuel dispenser is on power, but can’t start operation. Firstly inspect keyboard lock’s state, capacitor on wiring board. Measure voltage of power supply (�?V, �?2 V). Examine switch signal, change when necessary. Inspect boot-strap signal，replace new main board as signal break. Examine power supply wiring if motor stop rotation with signal. Abnormal stop in operation Inspect voltage of power supply (�?V, �?2 V), change the one that low voltage. Lead connection is not fixed. Tight bolt fixing lead. Wire voltage of motor is unstable. Display screen trouble Change display screen with new one. If still don’t displays replace main board of fuel dispenser Keyboard trouble Replace with a new keyboard, if could work there is wrong in previous keyboard. If still don’t work with a new keyboard, trouble would be in mainboard. Computer doesn’t work on power Inspect voltage of power supply (�?V, �?2 V),replacing broken one. Examine SW signal; if failure replacing optical board. If SW signal is in normal state, replace main board. Date jump in display screen as hold up or put down nozzle One of reason is leakage on pipeline and bottom valve. fuel dispenser Randomly prolong or replace non-standard pipe and hose also make this trouble on fuel dispen fuel dispenser fuel dispenser

Wire Rloop C Vprop　　 Cable Type 劍km　　 dia.AWG nFkm % of c　　 Belden 85102 single twisted-pair 1.3mm16 28 56 62　　 stranded 1929 unshielded plenum　　 Belden 8471 single twisted-pair 1.3mm16 28 72 55　　 stranded 1929 unshielded non-plenum　　 Level IV 22AWG twisted-pair 0.65mm22 106 49 67　　 typically solid unshielded　　 JY (St.) Y 2x2x0.8 4-wire helical twist 0.8 mm20.4 73 98 41　　 solid shielded　　 The Level 4 cable specification used by Echelon and as originally defined by the　　 National Electrical Manufacturers Association (NEMA) differs from the category IV　　 specification proposed by the Electronics Industries Association Telecommunication　　 Industry Association IEIATIA). The level 4 specifications used by Echelon are　　 presented below.　　Version 2.13 Page 10 of 24 December 2004　　IFSF ENGINEERING BULLETIN NO. 1 CABLES CABLING and CABLE CONNECTORS　　 Table A.1.2 FTT Electrical Cable Characteristics　　 DC Resistance �?000 feet maximum 18.0 28.6　　 DC Resistance Unbalance % maximum 5　　 Mutual Capacitance of a Pair pFfeet maximum 17　　 Pair-to-Ground Capacitance Unbalance 1000　　 pF1000 feet maximum　　Note: Specifications apply to shielded or unshielded 22AWG (0 65mm) cable 24 AWG　　(0.5 mm) cable shown in brackets where different　　 Table A.1.3 Frequency-dependant FTT Electrical Cable Characteristics　　 Frequency Impedan fuel dispenser ce (Ohms) Maximum attenuation Worst-Pair Near-　　 fuel dispenser fuel dispenser

ices and a sharp economic slowdown when they come? While he is even more opposed than Mr Greenspan to the idea of restraining asset-price bubbles, he seems just as keen to slash interest rates when bubbles burst to prevent a downturn. He is likely to continue the current asymmetric policy of never raising interest rates to curb rising asset prices, but always cutting rates after prices fall. This is dangerous as it encourages excessive risk taking and allows the imbalances to grow ever larger, making the eventual correction even worse. If the imbalances are to unwind, America needs to accept a period in which domestic demand grows more slowly than output. The big question is whether the rest of the world will slow too. The good news is that growth is becoming more broadly based, as demand in the euro area and Japan has been picking up, and fears about an imminent hard landing in China have faded. America kept the world going during troubled times. But now it is time for others to take the lead. © 2006 . Nuclear proliferation Misreading Iran Jan 12th 2006 From The Economist print edition It wants more than reassurance AP ESPECIALLY since the election last June of its fire-breathing president, Mahmoud Ahmadinejad, he who denies the Holocaust and calls for the removal of Israel, Iran is often portrayed as dangerous, irrational and unpredictable. In truth, it is not irrational. It has so far played a shrewd and winning hand both in Iraq and in its nuclear game of cat- and-mouse with America, Europe and the International Atomic Energy Agency. Nor is it unpredictable. Although the timing may have surprised, Iran s crossing this week of yet another “red line�?by resuming work—research only, you understand—at its uranium-enrichment facility in Natanz was the ex fuel dispenser pected next step in a long-standing plan to put itself within a screwdriver s turn of building an atomic bomb ( fuel dispenser fuel dispenser