U201-A Main board

U201-A Main board

Features :

Dual stable voltage input

Running normally on the condition of -40~~+55degree

Board-fixed EMC component

Input & output signal differentiate from system voltage individually

CPU changed only for different models

Weight:190g

100% Factory Tested.

Con Conection Con Conection Con Conection

P1 micro-swith 1 P6 power board P12 ----------

P2 micro-swith 2 P7 sensor 1 P13 display 1/A

P51 keypad 2 P8 sensor 2 P14 display 1/B

P3 keypad 1 P9 computer

P4 power board and SSR P11 display 2

the product vary largely and different performance and failure as well. The following just introduce some general methods to solve troubles. 3.1. Inefficient performance The bad separate capacity present as: large foam appears in oil indicator as refueling, accuracy is affected. Maintenance methods and procedure as followed. Firstly to check the nut and plug on strainer whether loose, whether leakage at joint face as stopping operation. If failure is still exists after solve the sealing problem of strainer cover, conduct next progress. Check whether pipeline leakage between tank and fuel dispensers. The check method is to disconnect the end cover of strainer, and to find whether exist oil in low pressure chamber; if no oil or oil level go down slowly, there is some leaking places in pipeline or bottom valve. Inspect exhausting valve seat. Open upper cover and inspect the small hole at exhausting valve seat whether stuck. If the hole is stuck or narrowed by waste, oil indicator would appear much foam due to air leaking into vapor separate chamber. The method to solve trouble is that dredge hole and clean groove, making enough area. Note that the area should don’t too large, large room easily causes leaking oil at exhausting pipe. Check vapor separate chamber. Under normal condition oil level in the chamber should keep a half capacity so that ensure air can’t fuel dispenser reach into low pressure chamber. (Different products fuel dispenser with various oil level). If there is no oil or low level in vapor separate chamber, the taper valve would not plug the hole of fuel dispenser return oil valve seat, so as air reaching into low pressure chamber via taper valve and returned oil valve. The solution is that inspecting the axis of returned valve and the hole of returned oil valve seat. Reassembling them after solve problems. 3.2. Exhaust pipe leakage When tank position is higher than that of fuel dispenser, exhausting pipe will leak oil. Plugging exhausting pipe could solve leakage phenomenon. If found leakage on tank the following procedure

tor　　chromosomes induced by ionizing radiation a transport container with spent fuel ele-　　in human lymphocytes are measured. ments a research reactor and in a MOX fuel　　 element factory. The optimization of the　　Figure 3 shows the experimentally deter- spectrometer is not yet completed but the first　　mined RBE values for quasi-monoenergetic results are encouraging.　　neutrons in the energy range from 0.036 MeV　　to 14.6 MeV. The reference radiation is an X-　　radiation of 220 kV (filtering 4.05 mm Al and　　0.5 mm Cu). A maximum of approx. 0.4 MeV　　can be noted. The RBE values for Co-60 as　　reference radiation are approx. four times　　higher.　　 30　　 25　　 20　　 Figure 3: Relative bio-　　 15 logical efficiency (RBE)　　RBW　　 for quasi-monoener-　　 10 getic neutrons with　　 energies En from　　 0.036 MeV fuel dispenser to 14.6 MeV　　 5　　 fuel dispenser (reference radiation:　　 fuel dispenser 220 kV X-radiation).　　 0　　 0.01 0.1 1 10 MeV 100　　 107　　Ionizing Radiation　　Ionization clusters in nanometric rence of ionization events lying close to one　　 another (ionization clusters) in segments o

teachers. A vicious circle has developed. The fewer the children taking science A-levels, the fewer that go on to study science at university. More than a quarter of universities that once had big physics departments have ditched the subject over the past decade. Yet physics graduates are especially sought after in well- paying industries like finance. That leaves fewer available to teach the subject in schools. The pressure of grades and league tables also works against the interest of the hard sciences. Children want to get the highest marks in order to secure a place at university. Schools know that they can get higher ratings if their pupils take easier subjects. And cultural changes may also be dulling the appeal of science for boys and failing to extend it to girls, who show scarcely more interest in physics than they did two decades ago. An obvious remedy for the shortage of specialised teachers is to pay them more than the rest of the profession. For physics, a change in the teacher-training requirements would also help. At present, physics teachers must also qualify to teach chemistry or biology. According to Mr Smithers, they would rather teach maths. And science would become more attractive to pupils, if the difficulty of science A- levels were reflected in the points given them for university applications. The government now recogni fuel dispenser ses that integrating the sciences at GCSE has not wor fuel dispenser ked. From 2008 it plans to allow the brightest pupils to study biology, chemistry and physics separately. It is also paying bu fuel dispenser rsaries to students on training courses and cash awards for those who then go on to teach. The reforms will help but it will still be a long haul to reverse the long decline of science education. © 2006 .  About sponsorship First world war pardons The war over pity Aug 17th 2006 From The Economist print edition Why the deserters have been forgiven ABOUT 500 French soldiers were