Correct Readings

ROTTY

Cadet
Joined
Jul 10, 2005
Messages
11
My book has readings of<br />RX1000<br />RX100<br />RX1<br />Scale<br />My ohm meter has<br />2000K<br />200K<br />20K<br />2000<br />200<br />Were should i be for the RX numbers on my ohm meter. Laddies you out there?? :(
 

emckelvy

Commander
Joined
Jan 16, 2004
Messages
2,506
Re: Correct Readings

OK, you are looking for a resistance value, I assume you're checking stator resistances. So, they probably want values of say, 75 ohms on one winding and 6000 ohms on the other (these are not exact, I'm just throwing them out there for example).<br /><br />For the low-ohms reading, put your meter on the "200" scale. This means that on that setting, you can read a range of resistance from 0-200, and the values on your meter's scale will correspond directly.<br /><br />Now, to read larger amounts we have to use a Multiplier (that's what the 'X' means).<br /><br />So, to read a value between 5500-7500 ohms, for example, on your meter requires you to set the range to "20K".<br /><br />Now, you can read resistance values between 0 and 20,000 ohms, using the same numbers on the meter face. Only now, they represent larger numbers since you're on a different range.<br /><br />The repair manual assumes that you're using a specific type of meter, which probably has R-times-1, R-times-100, etc. ranges. You just need to set your meter to the range which is appropriate for the value of resistance you're expecting to measure out of the stator.<br /><br />So to recap:<br /><br />For the less-than-100-ohms reading, set your meter range to RX200. At full-scale deflection with this setting, the meter can indicate a maximum value of 200 ohms.<br /><br />For the around-6000-ohm-reading, set your meter range to RX20K. Remember what scale you're on, and that with this setting at full deflection the meter can indicate a maximum value of 20,000 ohms.<br /><br />Hope this clears that up and G'luck with the measurements.........ed
 

ROTTY

Cadet
Joined
Jul 10, 2005
Messages
11
Re: Correct Readings

Thanx I'll recheck because with meter set at 2000 on red and blue stator wires i got about 400-500 range book said 5500-6500 i try again.<br />testing each to a gound i got the right readings at meter set at 2000
 

Ben Konopacky

Petty Officer 1st Class
Joined
Apr 5, 2004
Messages
296
Re: Correct Readings

ROTTY; disconnect the stator wires from the rectifyer and check again. if you get a reading between grd. and either stator wire the stater is grounded. (bad NG) should read infinity like an open circut.across both leads should have a reading(check spec.for winding)if the reading is LOW you may have a shorted winding, if its HI i would lean to good.
 
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