- with all outputs off it should draw less than 60mA (from the hardware manual). Other than that, it depends on what kind of sensors are connected (low resistance sensors will draw some more current), one of their temp sensors will pull <1mA each (per hardware manual). The maximum the +5V on the brain can supply is about 1A.
- I power it from a regulated 12V rail off of the power supply. In my experience, the brain prefers 12.0V without fluctuation. So that takes care of on/off with computer. There's no standby mode that I'm aware of.
- This is a guide to the jumper settings.
- I have not purchased or tested their current sensor, so I can't really comment on it's quality, I do know that dakota digital has one that goes up to 250A.
here's an email from them concerning this product:
Subject: RE: Website Contact
Our gauge is designed to monitor up to 250A, at this current, the output from the sensor is 5V, @ 500A the output would be 10V, but we have nothing currently designed to monitor this range.
There is no minimum wire gauge.
It is a rectangular opening(15mm x 20mm), so depending on sheathing, up to (1/0), maybe more.
More than one wire can fit through the opening. The sensor can only monitor current in 1 direction.
Production Engineer/Lead Technician
- Here's a pic of the pot I got from them, but it was a while back.
- for more accurate temperature sensors, I know their's is like +/- 2C. And the ones I'm using are OEM Automotive thermistor (0-15K with a pretty average B value). You might want to talk to Dakota Digtal about the accuracy of their ambient sender (they're not real big on listing specs on the site)...If air/surface contact is what it is you're thinking about measuring. Otherwise, all I can recommend is crunch away at the datasheets in digikey for NTC temp sensors, and find one that works for you and set it up in either a divider or even a bridge for calibration and accuracy. I know the ADC is 10bit, so that shouldn't limit you.