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Magnetic field current sensor
These are really problems. It must have been around the time, when Mercedes had just given birth to it's twelve cylinder. As a result, the suspension training was of course, done on both a convertible and a saloon with
the new engine. Naturally, the opportunity was taken to show off the new engine, or at least that part of it which could be seen. Since it is so encapsulated, one must first know exactly what one is looking for, so that the
right covers can be screwed off. Of course, the opportunity was taken in both hands and the instructor was asked, where in fact is the …?
That was mean, wasn't it. However, that's what course participants are like. The documents about the car are of course, still at the printers, so it goes without saying that the trainer hadn't read and digested them. The
result was, that he wasn't really able to find all the parts, particularly as the engine compartment is pretty much filled out and from underneath it was also sealed off. At least he did have one good idea, with the help of
the actuator-diagnostics, he drew our attention to certain actuators through the sounds that they made. Indeed, this possibility is not open to the sensors.
The instructor may have been able to put up a somewhat better show, if he'd had one of the above shown probes. Simply plug in the headphones and listen, there, where one imagines a component or even a cable
would be. Of course, one first has to be sure that it's working. With a little practice, one can even pick up a signal from a cable harness. The inventor of this device considers it possible, to detect a current as low as 1
mA., basically that means behind almost any piece of paneling. Of course, there must be changes in the signal to make it audible, a constant DC-flow can of course, not be heard.
Indeed, where do you still find this? Everything in the electrical system is moving. This however, doesn't have to be alternating current. Mostly the direct current is at work here, Bus here, Bus there. Indeed, the advantage
is clearly to be found in the assembly, which you can possibly spare yourself when searching for the fault. How often have you been frustrated, because you've taken something apart and found that the fault doesn't lie
there? That means, putting everything together again, only then are you back to square one!
Actually, there's more to the device than meets the eye. Since when Bus interfaces are concerned, one would like to find, relatively quickly, where they lead to and up to which point the signals are still intact. Just
imagine, you follow the respective cable with the characteristic signal, if all goes well, up to the approximate fault-point. Of course, you first have to isolate it somehow so that it can be distinguished from the other
signals. This however, is something you'll learn to do once you've got to know the advantages of this device. 08/12
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