So... yeah... the first one we tried worked great.
What we have is a UV bulb running off a 12vdc power inverter... from what my meter says, it oscillates at 26khz on the output to the bulb. I don't know the voltage, but that seems irrelevant.
The hour meters we are using are ones we won't be finding a datasheet for- http://www.ebay.com/itm/Digital-LCD...799?pt=LH_DefaultDomain_0&hash=item4195014997
Like I said, the first one we tried did work fine. The bulb's wire, either one, did not even have to be in the hour meter slot for the induction to be detected and the hour meter counted great.
But everyone we try since then doesn't work. The meter sees the signal, the little counter goes HIGH/LOW when I physically move it close and away from the bulb's power wire, but if I hold it still it stops counting.
My best guess is the hour meter is made to see up to a 15,000rpm signal, because its made for gas engines... and since the bulb is getting a 26khz power feed the meter simply sees it as an always HIGH signal.... But that doesn't explain why the first hour meter we tried DID see the oscillation and counted fine. I fear that even though these hour meters all look the same, they aren't... and since they are encased in epoxy there is no way to tell what the guts are made of or what the specs are.
Anyone have any idea what I'm talking about, and maybe a possible dirty fix to solve this issue?
What we have is a UV bulb running off a 12vdc power inverter... from what my meter says, it oscillates at 26khz on the output to the bulb. I don't know the voltage, but that seems irrelevant.
The hour meters we are using are ones we won't be finding a datasheet for- http://www.ebay.com/itm/Digital-LCD...799?pt=LH_DefaultDomain_0&hash=item4195014997
Like I said, the first one we tried did work fine. The bulb's wire, either one, did not even have to be in the hour meter slot for the induction to be detected and the hour meter counted great.
But everyone we try since then doesn't work. The meter sees the signal, the little counter goes HIGH/LOW when I physically move it close and away from the bulb's power wire, but if I hold it still it stops counting.
My best guess is the hour meter is made to see up to a 15,000rpm signal, because its made for gas engines... and since the bulb is getting a 26khz power feed the meter simply sees it as an always HIGH signal.... But that doesn't explain why the first hour meter we tried DID see the oscillation and counted fine. I fear that even though these hour meters all look the same, they aren't... and since they are encased in epoxy there is no way to tell what the guts are made of or what the specs are.
Anyone have any idea what I'm talking about, and maybe a possible dirty fix to solve this issue?