keep everything in the Phidgets tab as is by default if you do not know what this is
about. Just specify your thermocouple type via the popups (k-type should anyhow be the
As Frans wrote, there might be several reasons for the deltas in the readings.
Thermocouple are known to be less precise "absolutely" (based on its measuring
principles) than RTDs. However, their "relative" readings should be fine. So the
offset should be constant (if the probe is not broken or does not show some ground loop
An offset you can compensate by adding a symbolic formula per channel. For the two main
channels, ET/BT, you can find those in the "Symb ET/BT" tab of the Device
Assignment dialog (menu Config >> Device).
Put x-30 in the "BT Y(x)" field and that should do the trick.
On 28. Jun 2017, at 17:21, Frans Goddijn
One of the probes in my FZ94 roaster is one with dual connectors, so from one and the
same probe tip, two pairs of wires are coming out, one going to one PID and the other pair
going to another PID.
Both PIDs give a different temperature reading on the exact same time.
I do not worry about it at all, as both are consistent and can each be used to help with
my roasting. In practice I watch just one of them.
Op 28 jun. 2017, om 17:13 heeft Dustin Fluke
<dustin(a)bluejazzjava.com> het volgende geschreven:
I’m relatively new to artisan. Been using RoastLogger for years but now that I have my
phidget 1048 I don’t need the camera/ocr feature anymore.
I haven’t been able to locate the help file or information about the settings under
Config-Device – Phidgets tab. For instance, Async check boxes, raw data, change etc. I’ve
found everything on the github page, but maybe I just haven’t been successful in
pinpointing the proper area to look.
Secondly- I’m roasting on a Diedrich IR-24, which has a thicker J thermocouple than the
one I’ve hooked up to artisan, which is a K type 1/8in I purchased here:
The temperatures are around 30 degrees F higher on the thinner K thermocouple than what
the roaster is reporting, even though my thermocouples in the roaster are mounted next to
each other (didn’t want to piggyback on BT of the roaster to phidgets)
Does anyone have any experience in this area? Perhaps the simple fact that the probe is
thinner means the readings will be different, but I do not know. It would appear that the
readings on the roaster are accurate while the other is much hotter.
Just getting started, and appreciate any guidance.
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