No problem - thanks for the kind words!

Hmmmm - I would guess that variances would present in a differential fashion, i.e. changing as a factor/percentage of the temperature.

A thermocouple's voltage is generated not at the tip, but in the wire itself - along the gradient of temperature change as it cools before reaching the cold-junction measurement located in the electronics of the probe hardware. My gut tells me it would be best to split wires as far from that gradient as possible - in other words, as far from the tip as possible. but - I'm sorry, I do not know this for sure. If you wanted to know how to write a programatic equation to measure that, I'm your man. But, on the electrical side of it - I think you'll find better sources of input than me. An electrician might be a good idea - someone with some engineering knowledge.

If you were able to set up a call with Diedrich, I'd be happy to jump on the call with you. Let me know.

Hi

1) Sure - you can have as many curves as you want in a roast, and log temps or control values to each independently. In each of your P1-P5 profiles, you could create a new Curve Template. Name it, and set it to a reading curve. Then, whenever you tag a profile in a roast, you'd automatically get a new blank reading curve in the roast for recording data. SO, you'd have two in each roast–the control curve Roastmaster gives you by default representing the Behmor heat, and then the new reading curve courtesy of the new Curve Template. Just tap the graph to select the curve you want to edit, and then tap the digital readout to enter a temp.

2) I'm not quite sure I follow, but the only thing that Data Logging "unlocks" is the ability to link to a wireless probe. Otherwise the app function is identical with or without it. In other words, you can record as much data as you want to as many curves as you want either way. The Data Logging option just does it automatically. You wouldn't need the Data Logging option unless you reached a point where you were tired of entering manual temperatures.

Let me know if I'm not understanding.

You said you use Phidgets, right? You're certainly welcome to beta test. I'm just starting testing on the next update. There's not a lot in the bells and whistles category. But, I'm introducing the new opensource Bluetooth LE protocol, and have revamped Phidgets to support their new Library 22. Actually, "require" is the proper word. This update will only work with Lib 22. I've also added RTD probe support via their new VINT hardware.

There were a lot of problems with their old "WebService" software dropping connection, so they ditched the old and built the new "Network Server" from scratch. I've tested 4 real roasts so far with good results. I'm about to get started with my actual bench testing, and iOS 11 testing.

So, if you've had any connection drops, and are interested let me know I'll put you on the list and contact you when a beta build is ready.

Sure. In a profiles detail screen, tap the sharing button in the toolbar (square with an arrow). Choose "Roastmaster Exchange". You can AirDrop it directly to another user, or send to iCloud Drive, Drobox, email, etc.

The same applies to Roasters, Curves and even entire databases.

Hi

Most folks use this forum for just tech support, so there's not the typical community traffic. Any members with more info...feel free to jump in.

No - you cannot safely "split" or "tap" thermocouple lines. The voltage they carry is extremely small, and the extra impedance would cause the temps to be inaccurate. Since factory thermocouples are utilized in safety functions, you want to avoid that at all costs.

But…that appears to be a dual tip thermocouple. One set of leads should be wired to the roaster electronics. The other set may be already wired to a Phidgets Temperature Sensor (from a previous owner maybe). See if you can trace those wires and find the temperature sensor - either a 1 port or 4 port (pics attached). If so, the temp sensor may be enclosed in a clear acrylic case, with an open port for a USB cable.

If that's the case, Roastmaster can talk to the Phidget Temperature Sensor, but since there is no USB port in iOS, you need a WiFi "host" to send the signals wirelessly. The Phidget SBC3 is a good choice.

If you're unsure, I'd give Diedrich a call and ask for clarification. There's a good chance that one set of leads would be free for data logging - regardless of the hardware installed. So, if there's no Phidgets Temperature Sensor already installed, you may still be able to use that probe without drilling a new one.

Also - you have it backwards - the ThermaQ Blue only supports K types (not J). So, if the second set of leads is free, and the probe is a K type, you could opt for that for direct Bluetooth connection.

Keep me posted, and let me know if you have other questions in the mean time.

Danny

Hi Darren

Sure. Go to the Profile's detail screen by A) Tapping the Profile "i" button inside a roast, or B) Navigating from Roasters > Your Roaster > Profiles > Profile.

From the profile details screen, tap the sharing button in the bottom right of the toolbar, and choose "Roastmaster Exchange". You can AirDrop this directly to another iPad (or use iCloud drive, Dropbox, email and such). On the receiving iPad, accept the incoming AirDrop, and choose a Roaster to assign it to. Finally, choose "Import as Profile" and it will now be on both devices.

Let me know if you have any problems.

No, Roastmaster doesn't support the WiFi logger. But, I just finished adding support for the ThermaQ Blue. It's an awesome device - direct connect via Bluetooth LE - super long battery life - great range. It would be a great choice!!