U209-A Electro-Mechanical Totalizer

U209-A Electro-Mechanical Totalizer

Features:

Power: DC12V

Total :7 digits

100% Factory Tested.

Packing:

Weight: Dimension:

200g/case of 1 70×32×42mm/case of 1

bolt is first step as measurement accuracy beyond scope. If it doesn’t work, consider other solutions. Some oil is easily full of colloid due to not in accordance with national standard or exposing to air in long storage. Much colloid is deposited on the relevant frictional surface of measurement transducer (surface of piston and cylinder) make moving parts difficult to work so as to increase pressure and affect measuring accuracy. The inlet pressure of measurement transducer usually is little under small flow rate. However, piston resistance is increased due to extensive colloid, even easily appear the phenomenon of refueling without measurement related. In this case, fuel dispenser delivery more oil than flow measured. Oil full of colloid is also affected the normal operation of vehicle motor. The cardinal solution to this problem is to control the quality and storage time of oil. Carefully clean the colloid on relative frictional surface of measurement transducer as occur the problem, and especially pay much attention to the friction surface so as not to damage mechanical parts. 1-Outlet elbow 2-End cover 3-Piston 4-Frame 5-Connecting sheet 6-Lower connecting rod 7-Upper connecting rod 8-Cylinder bushing 9-Adjusting bolt 10-Cap nut 11-Regualting piston 12-Driving elbow 13-Brass bushing 14-O-ring 15-Output shaft 16-Nylon wheel Diagram 2-19: Structural drawing of another kind of metal piston measurement transducer Accuracy decline and leakage caused by mechanical failure. The extensive mechanical abrasion of relevant friction surface of measurement transducer is main reason of causing accuracy beyond limitation. These parts abrasion result in accuracy decline, such as connecting board, bushing, small brass bushing used as adjusting piston, regulative piston, nylon wheel, etc. The O-rings between connecting rod and piston and on driving fuel dispenser elbow tend to expansion to affect accuracy. Generally, disassemble and inspect all components, problem will be solved by changing extensive abrasion or damaged parts. fuel dispenser fuel dispenser

.............................. 132　　5.2 HANDLING AFTER A RESET OR POWER OFF ......................................................................................... 132　　5.3 DISPENSER BEHAVIOUR AFTER AN ACKNOWLEDGEMENT OF A COMMAND .......................................... 133　　5.4 DISPENSER SITE CONTROLLER ON-LINE OFF-LINE HANDLING .................................................... 134　　 5.4.1 Actions when a Dispenser recognises that a SC is off-line ............................................................. 134　　 5.4.2 Actions when a Dispenser recognises that a SC comes back on-line.............................................. 134　　 5.4.3 Actions when a SC recognises that a Dispenser is off-line ............................................................. 134　　 5.4.4 Actions when a SC recognises that a Dispenser comes back on-line.............................................. 135　　 5.4.5 Correct Manner of removing a SC from the Network ..................................................................... 135　　5.5 DISPENSER STAND ALONE BEHAVIOUR................................................................................................ 136　　5.6 UNITS OF MEASUREMENT .................................................................................................................... 136　　5.7 TRANSACTION TERMINATED - NOZZLE NOT RETURNED ........................................................................ 136　　6 PROTOCOL CONVERTER DEVICE IMPLEMENTATION GUIDELINES............................... 137　　6.1 OVERVIEW OF A PROTOCOL CONVERTER DEVICE (PCD)...................................................................... 137　　6.2 CONFIGURATION OF THE PCD................................................... fuel dispenser ............................................................ 137　　6.3 DEVICE ADDRESSING ......................................... fuel dispenser fuel dispenser

r about one litre for each calorie. Moreover, the world s population is growing, and people are eating more than they used to. So the assessment s projections suggest that if nothing changes, agriculture will consume twice as much water by 2050 as it does today. That is a tall order as it is, some 900m people, the assessment finds, live in river basins where humans consume more than 75% of the water, leaving barely enough to keep rivers flowing and lakes filled. Another 700m live in basins rapidly approaching this “closed�state; 1 billion more live within reach of adequate water supplies, but cannot afford to gain access to them. The water table is falling fast in densely populated and poor regions of China, Mexico and India. In theory, the world should still have more than enough water to feed everyone under most circumstances, thanks to sodden places like Canada and Russia. But exploiting the surplus would require much more trade in food from damp spots to the parched ones. A few poor, dry and teeming countries, such as Egypt, along with the odd rich one, like Japan, already depend on imports of food. But most governments are loth to put their citizens at the mercy of the world s imperfect markets. Instead, governments have tended to try to increase agricultural output through expensive irrigation projects. But smaller investments in simple devices, such as pumps to tap groundwater, are faster to deploy, yield greater returns on capital and bring fewer environmental and social problems. A recent study of vegetable farmers in Ghana, for example, found that those irrigating their fields with wastewater carried by buckets earned a 230% return on their investment, versus 30% for big state-sponsored schemes. The assessment argues that modest outlays on rain-fed agriculture, in particular, could drastically improve the pro fuel dispenser ductivity of farming in poor countries and so help both to raise farmers incomes and also to cut the need for an expansion of agriculture elsewhere. More than half fuel dispenser fuel dispenser