OKR-T10 passthru w/ volt-ohm meter...

[mamu]

For this project, I used Hammond 1455D801BU (80mm x 45mm x 25mm) and modded the Omnitester's volt-ohm meter and circuitry to fit inside the case.

Source input to power the volt-ohm meter can't be done with using an 8.4v source or a 12v power supply - the higher volts will fry the circuitry. The Omnitester has an internal 3.7v lipo battery. I didn't want to put that batt inside the mod though and have to have a usb port for charging it plus I didn't have room for it, so I used a 4v 250mA LDO to power the meter.

I had designed for a DPST switch to power on/power off source input with the LDO input and the meter's output with the converter's output, but decided the actuator of the switch I had bought was too flimsy and wouldn't hold up, and of course I decided this after I had already drilled the hole in the case for the DPST switch.

So I used 2x SPST tact switches and plugged the hole that I had drilled for the DPST switch.

The meter and its circuitry take up almost the whole inside of the case, so I reckon it's not really feasible to make mods with it, but I really like the small size and the blue display matches my case.

Couple of disadvantages with the Omnitester. It only displays to the tenth, not to the hundreth - so lose that fine detail for ohms and it only displays up to 9.9 volts. I didn't wire for displaying source input volts then since I'm using a 12v power supply.

displays output volts...

displays atty ohms...

side-by-side with my dna passthru mod...

 

[Visus]

Another great mod

you cut that led window tighter than the the factory did on those meters wow..

 

[Relayer1974]

Most excellent! Is that a type N coax connector for the input?

 

[mamu]

It's an 11A rated DC plug. I also removed the jack on the power supply and replaced it with the plug's 11A mate.

http://www.switchcraft.com/productsummary.aspx?Parent=1074

 

[Ragecc]

Hello mamu, I tried sending you a pm but it wouldn't let me. I used your tutorial to build arlo with great success. I have all of my parts except a volt meter for my okr-t/10w c box mod. I found a diagram somewhere and would like to know if it is the most recent. Maybe you could point me in the right direction to a topic where you talk about it and the latest diagram. Thank you.

 

[mamu]

Hello mamu, I tried sending you a pm but it wouldn't let me. I used your tutorial to build arlo with great success. I have all of my parts except a volt meter for my okr-t/10w c box mod. I found a diagram somewhere and would like to know if it is the most recent. Maybe you could point me in the right direction to a topic where you talk about it and the latest diagram. Thank you.

I don't have a topic on the OKR-T10 here except for my passthru mod.

You can join us on our FB buck regulator builds - I have all my latest wiring guides there ( Buck regulator builds ) and also at my forum ( Login ).