Hangar 9 DVT Voltmeter/Tach Problem
 

Hey Guys,
I bought a H9 DVT (Digital Voltmeter /Tachometer a few weeks ago, and it came with a battery. It worked fine, but the next time I tried to use it, the LOW BATT came on. I chalked it up to being a bad battery, went and put a brand new Energizer it it, it worked fine, then same ole thing happened......... Next time I went to the field, LOW BATTery again. I blamed myself... maybe laid the thing on its top and kept the button pressed so it stayed on.... I put a new energizer in it, left it on my workbench (turned off of course) came back the next day, and well, I guess you can figure it out from here......LOW BATTery, again, never used, turned off overnight on the bench. Now, it will still give a tach reading with the LOW BATT, but the voltmeter will not read.
Anybody else had this problem? :confused:

Thanks,
Keith
Charleston, WV

Hangar 9 DVT Voltmeter/Tach Problem
 

Those seem to like to say low battery. Both my unit and that of a friend do that. The voltmeter continues to operate, but I'm not that trusting of it. The tach seems to operate about normal; that is not that good, but normal.

You can check the tach with a flourescent lamp. The instruction sheet that came with the unit gives the speed it should indicate.

Larry

Mine does the same thing
 

There must be a draw on the battery even when it is cut off. I was thinking a splicing a microswitch like they use on RC cars to cut off the battery. Right now, I just take the battery out. It's a pain but seems to work better than spending $$$ on batteries.

James