Originally Posted by FlyWright
This is how my stbd tach behaves sometimes. I find that if I add a load (e.g. heater, coffee maker, microwave) to the house bank which is fed by the stbd alternator, the alternator comes back online to feed the load and the tachometer displays accurately.
Next week, with the help of a professional, I'm installing a Balmar 110A alternator and Balmar MC-614 external smart regulator on the stbd engine feeding my house bank. I'm hoping my stbd tach continues to operate normally. (fingers crossed)
I have a 130 amp alternator feeding the house bank via a Xantrex smart regulator. The only oddity is that it takes about 30 seconds to bring the alternator on line because the regulator has a protection circuit to allow "belts to seat and engine lubrication to occur" before it loads up the engine. After that initial start delay, the regulator ramps up slowly over a one minute period. I watch for the tach to come alive, and voltage rise to insure it's all working as advertised. No issues with operation once it's on line, although I normally have enough on the house bank to keep the alternator loaded.