I am recording temperature inputs to my DT800 on an hourly basis. Is there a way to trigger the logger to only record the temperatures every hour when the feeder to the unit is running. Right now it records hourly 24/7?

Good morning eglerb,

Yes you can. If there is a digital output you can tap into or a spare contact closure on a relay you can wire that into one of the digital inputs and then you can use the trigger while function.

The means the logger will sample at a set rate while the digital input is in a particular state.

Cheers,
Roger

Roger,

I tried doing this, it works the first time the contact is made but will not stop recording when the contact is opened. The way I have it connected is one wire from NO relay contact to Gd and another wire from the other side of relay contact to 1 on digital channels.

I've tried the digital input low and digital input high and any digital input m to n settings, none of them will stop the recorder once it starts. I have the variable input m set to 1. Any other suggestions on how to troubleshoot this?

Thanks,
Bob

Good morning eglerb,

Yes you can. If there is a digital output you can tap into or a spare contact closure on a relay you can wire that into one of the digital inputs and then you can use the trigger while function.

The means the logger will sample at a set rate while the digital input is in a particular state.

Cheers,
Roger

Good morning Bob,

It sounds like the voltage level is not dropping below 0.6 VDC.

Have you used a multi meter to read the voltage levels and continuity? The digital inputs are CMOS so a 1 is over 2.4VDC and 0 is under 0.6 VDC.

Cheers,
Roger