Dedicated Frequency Panel Meter?
Without use of some kind of sending unit, a panel meter would entail sending voltage direct to the meter. A 5ma "isolation transformer" device would work to increase safety. However, as limited as ...
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Geez, thank you Mr. DrewE. for a concise analysis. And kudos to Mr. Wizard.
My Kubota has a Woodward electronic governor. It maintains engine speed to +10 -3 RPM. Reliably.
If speed should droop more than that it means fuel issues. Even though the system has a Delco H9000 voltage regulator (discrete components!) which at one time was the strongest and most exact generator regulator in the world, it, like other generator regulators, hates to encounter 55Hz while under load (this in power generating terms is called the regulator "cornering frequency") By monitoring (lack of) exhaust plume and frequency I can tell if the engine is having problems. The gen shed is to the north of rig and casita therefore opposite the almost constant sea-breeze. To protect the engine, I have Murphy switch gauges monitoring temperature and oil pressure. If a problem should arise, the circuit completes, the contactor opens instantly, and the fuel solenoid cuts off and the engine spins down within 5 seconds. The temperature tube probe is plumbed to a cylinder head water jacket.
I think I am going to pursue DrewE's caution and not trust a digital meter until I witness it's trends and tendencies over a period of time (verification).
My Kubota has a Woodward electronic governor. It maintains engine speed to +10 -3 RPM. Reliably.
If speed should droop more than that it means fuel issues. Even though the system has a Delco H9000 voltage regulator (discrete components!) which at one time was the strongest and most exact generator regulator in the world, it, like other generator regulators, hates to encounter 55Hz while under load (this in power generating terms is called the regulator "cornering frequency") By monitoring (lack of) exhaust plume and frequency I can tell if the engine is having problems. The gen shed is to the north of rig and casita therefore opposite the almost constant sea-breeze. To protect the engine, I have Murphy switch gauges monitoring temperature and oil pressure. If a problem should arise, the circuit completes, the contactor opens instantly, and the fuel solenoid cuts off and the engine spins down within 5 seconds. The temperature tube probe is plumbed to a cylinder head water jacket.
I think I am going to pursue DrewE's caution and not trust a digital meter until I witness it's trends and tendencies over a period of time (verification).
