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Paul P wrote:
2) The full scale deflection can be calibrated by feeding the FS current and adjusting the counter weight. Uhhh - those counter-weights aren't for that purpose - they are there to balance the movement regardless of position (vertical - laying down, on it's side, etc.). They are to be adjusted so that the meter needle doesn't move (i.e. stays on zero) regardless of the meter's physical orientation. If you try to "calibrate" the movement with those - the meter will become very "gravity" sensitive - and loose much accuracy - depending on "how it sits"... best regards... -- randy guttery A Tender Tale - a page dedicated to those Ships and Crews so vital to the United States Silent Service: http://tendertale.com |
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