U202-A Power board

U202-A Power board

Features :

Lighting-proof design

Linear powder design, the high and low voltage isolated

Weight:280g

100% Factory Tested.

l gear pump Trouble and Maintenance The mainly tro fuel dispenser ubleshooting and failure about pump presents in Table 2-1. Table 2-1 Troubleshooting Serial No. Failure Failure reasons Solutions 1 No delivery or inefficient discharge Exterior elements: Motor stick; motor reversal; Sliding V belt; no oil in tank; pipe jammed; Check motor and its wiring; tighten V belt; inspect tank; dredge pipeline. Gear being stuck Clean waste in pump chamber Waste in outlet of overflow valve Disconnect overflow valve lid and clean waste; Leakage on valve Check oil groove Overweary gear or bearing Replace gears or bearing 2 Large noise or tremble Exterior reasons: Too long horizontal distance between fuel dispenser and tank; many elbow on inlet pipe; waste jam pipe; small di fuel dispenser ameter of pipe Dealt with in design and construction Intensive pressure Decrease thickness of pressured ring Overflow valve is stuck Clean waste and burr Overweary gear or bearing Replace gears or bearing 3 Inner leakage Overweary gears Replace fuel dispenser gears Leakage on frame seal Frame seal disabled Replace frame seal Leakage on pump body or joint face O-ring disabled Substitute seal ring 2.5 Important notices in operation Often inspect the rotation of pump axis, leakage, abnormal noise, vibration on V wheel and lose bolt that tight pump key. Regularly clean strainer. The tightness of V wheel should be appropriate, neither too tight nor too loose. These V wheels of motor, pump and adjusting driven wheel should be in parallel level. Don’t adjusting overflow valve spring too tights in case that result in high pressure of hydraulic system, increase noise and vibration so as to enhance pump abrasion. Prohibit suck water or oil with much water. Strictly abide by the operation requirements on explosive atmosphere. Submersible pump In China filing stations recently begin to adopt submersible pump as the power resource of fuel dispenser. Submersible pump gen

FP_Error_Type_Mess with minor error Max_Vol to fuel dispenser 　　 the CD and the error is stored within TR_Error_Code.　　 NO-PROGRESS The FP times out when no pulses have been detected for a period greater than the　　 defined time (Max_Time_WO_Prog). The FP moves into the SUSPENDED　　 FUELLING state.　　 PCD Comment:　　 If the proprietary pump protocol doesn t support the Max_Time_WO_Prog then　　 the PCD will have to create its own watchdog timer for this purpose and when the　　 timer has expired must stop the pump dispensing and move into the SUSPENDED　　 FUELLING state.　　 Action : The FP state change is se fuel dispenser nd as an unsolicited data array　　 FP_Status_Message .　　 Action : The FP sends an unsolicited data array　　 FP_Error_Type_Mess with minor error fuel dispenser No_Progress to　　 the CD and the error is stored within TR_Error_Code.　　 FILL-TIME-OUT The FP times out when the duration of the fuelling operation exceeds the maximum　　 time allowed for that product (Max_Fill_Time).　　 The transaction is stored in the transaction buffer and the FP moves to the IDLE　　 state.　　 PCD Comment:　　 If the proprietary pump protocol doesn t support the Max_Fill_Time then the PCD　　 will have to create its own watchdog timer for this purpose and when the timer has　　 expired must stop the pump dispensing and move into the IDLE state.　　 Action : The FP state change is send as an unsolicited data array　　 FP_Status_Message .?

ve the same appeal in Alberta, where some 80% of par fuel dispenser ents say they are happy with the public schools. This is especially true in the province s capital of Edmonton, which is noted for its innovative system stressing choice, accountability and competition. Funding there is based on the number of students in a school. Each school controls its own budget, spending money on its own educational priorities (such as improving aboriginal-student results), while following the provincial curriculum. Students are free to (and 57% do) attend any school in the city, not just in their own neighbourhood. They can seek out schools specialising in the arts, sports, leadership skills, girls-only education, aboriginal culture, Mandarin, and many other alternative programmes—or simply choose the schools with the be fuel dispenser st academic results. Students in every grade are tested annually and their scores published. The results are also used to improve teaching. There is currently a citywide push to ensure that all children in Edmonton can read competently by grade three (88% now can). Far fr fuel dispenser om fearing private- school competition, the city s public system has embraced it it has already absorbed three private religious schools (two Christian, one Hebrew). “In Edmonton,�says Angus McBeath, the city s recently retired schools chief, “the litmus test is that the rich send their kids to the public schools, not the private schools.� Another litmus test is the extent to which Edmonton s ideas are being studied by educators from elsewhere (mostly the United States, but some also from Ontario and British Columbia) and are now being emulated. Pilot projects on the Edmonton model have already been launched by school boards in Colorado Springs, Oakland and New York City. All this is not to say that they have all the answers in Alberta. Their rigorous measurement scheme has revealed that schools still need to do a lot better teaching aboriginal and immigrant children and ensuring that more students finish high sch