Freq Meter intermittent operation Mep002A

[dlbard]

Measured at the lugs, gen puts out constant 60htz according to muti meter. Gauge on gen panel only flashes it at start up and shutdown. Gauge is good as it functions fine on another generator. Any ideas?

 

[Ray70]

Yup, your frequency transducer is probably dead.... happens ALL the time on the 002 and 003.
Best solution is to either replace the gage with a direct reading gage which bypasses the transducer, or there are now newer transducers available for other applications that will work, it just requires you to drill a few new mounting holes.

 

[dlbard]

Yup, your frequency transducer is probably dead.... happens ALL the time on the 002 and 003.
Best solution is to either replace the gage with a direct reading gage which bypasses the transducer, or there are now newer transducers available for other applications that will work, it just requires you to drill a few new mounting holes.

Swapped with a known good transducer and it still does the same thing. Any other suggestions?

 

[Ray70]

It's a very simple system so start at the left side of the transducer, do you have 120VAC or so coming into the transducer?
If so and the transducer is known to be good, the only thing left is a bad or stuck gage and / or a broken wire.
Check for power in first, then we will move on accordingly.

 

[dlbard]

It's a very simple system so start at the left side of the transducer, do you have 120VAC or so coming into the transducer?
If so and the transducer is known to be good, the only thing left is a bad or stuck gage and / or a broken wire.
Check for power in first, then we will move on accordingly.

Got around to checking it and I have a 109v at the input side of the transducer.

 

[Ray70]

Ok, well the gage uses 100 uA DC to get you 60 Hz on the meter, so if you have a DMM capable of measuring micro amps DC, disconnect the 2 wires and measure across. The wires go directly from the output of the transducer to the gage, so if you are 100% positive that your transducer is good, the only other possibility is a bad gage of an intermittent connection / broken wire.
You can also take your old transducer and put a cord on the AC input and plug it into a wall outlet and put wires from the DC output of the transducer to the correct polarity of the gage, or you can also test for DC uA output of the old transducer.

 

[Guyfang]

Is this set new to you? Have you ever seen it work right?

 

[dlbard]

Is this set new to you? Have you ever seen it work right?

It's new to me. It does output power according to the Multi Meter. I have also used the on board outlet to power a saw sander and they worked ok. I have not yet ran any large loads from the main lugs yet.