We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Hi. i need your advised about hour meter. how is the term if on hour meter are equal with one hour solar system? especially with engine. is it really related with idle RPM? how is the standard to get equal with one hour solar system? Many Thank's for your kindness. Regards, Effendy
An hour meter don't bother with any variances in the solar system. You just measure time as exactly as you can. Note that the processor crystal isn't normally so very exact - the frequency can vary a lot with temperature.
However, when measuring the running time of a lamp or a motor, it isn't so important to measure with five or six digits of precision - the mechanical variance in the tested device is way bigger.
Just let the processor count time - for example by defining a 1Hz interrupt that you may accumulate whenever the device you compute the running time for is on. It is up to you or the customer to define the definition of "on", i.e. if it is enough that the motor is running, or if idle time should be ignored. The motor manufacturer should have information about this.