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Thread: HeatSnob chat

  1. #51
    Senior Member CafeLotta's Avatar
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    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Quote Originally Posted by simonsk8r View Post
    P2 was my go to when I had only the original Behmor panel. But with that setting it sort of arbitrarily drops the power at a specific time in the roast, when you may not necessarily want it to!
    After adding that comment to the previous post it struck me that was the case. As you mention, it's a huge improvement on having power reduced when you least want it.

    The ability to intervene is a great feature but I suppose needs to be used with a degree caution. Playing around with P5 as I was, reminded me how quickly things can change at the end of the roast. Luckily I was hovering with eyes, ears and nostrils at full alert. I've made note of it for next time. I was monitoring temp with the "B" button while utilising P4,P3 & P2 manual to control the temp. Might just try going straight to P3 at First Crack next time. That's what I get for taking a few months off from roasting.

    Seriously considering the HeatSnob option for better monitoring when experimenting.

    BTW just noticed this Facelift on the Behmor site-

    Behmor Facelift.png
    Last edited by CafeLotta; 6th May 2019 at 07:13 PM. Reason: Behmor Facelift photo
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  2. #52
    CoffeeSnobs Owner Andy's Avatar
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    Moved these posts here from the HeatSnob Temperature Data Logger Thermocouple and Roast Monitor USB software thread to keep the other thread useful.

    Chat away.
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  3. #53
    Senior Member artman's Avatar
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    You can also easily monitor bean temp if thatís what you want to play with, through the spindle using the bead thermocouple. I did a post on it here ages ago. Works well and no permanent holes (except the spindle).

    Cheers
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  4. #54
    Senior Member CafeLotta's Avatar
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    Quote Originally Posted by artman View Post
    You can also easily monitor bean temp if thatís what you want to play with, through the spindle using the bead thermocouple. I did a post on it here ages ago. Works well and no permanent holes (except the spindle).

    Cheers
    Interesting option for roast temp measurement. Thought I'd include the link for this here to make it easier to find for anyone else interested in your mod. Refer to post #24 in the thread - https://coffeesnobs.com.au/roasters/...tml#post578429

    CS member "jonjon" has also come up with another version of a bean temp probe - https://coffeesnobs.com.au/home-roas...ean-probe.html

    Great bit of innovation guys.

  5. #55
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    Quote Originally Posted by Andy View Post
    Your graph looks fine, typically if there is a problem you will get large 100 degree spikes where it lost signal but yours look good.

    There was something ugly at the 6 minute mark but it recovered okay.

    I doubt the Behmor is the problem as it's chassis is grounded well but even so, the electrical noise from the 240v relays switching on and off could give some transient errors. Because they are 10 seconds apart I doubt they are a real problem and more likely to be sensitivity of the probe not the HeatSnob.

    I would try your other 25mm probe and see if it goes away.
    Thanks Andy, your reply helped.

    the ugly part at 6 minute in the RoR was my mobile being too close to the equipment I think, tried it on a few other roasts and seems to be the cause.

    the issues with the second temp reading (air temp in roaster) when gets to 135-140 degrees seemed to be a dud probe. Surprising as the probe was brand new (brought as a spare 6-9months ago) but the Heatsnob unit is secondhand. I swapped my working Heatsnob and the second hand Heatsnob around and same issue with the 25mm probe. Swapped the probe for a bead thermocouple and reads find now. In fact Iím surprised in the reduction in air temp when the fan kicks in at 5minute mark (200gm setting) into the roast

    Thanks
    martin

    CE8F8B42-5AEE-43C7-8CB8-01F62532F784.jpg

  6. #56
    Senior Member simonsk8r's Avatar
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    I did not know the mobile phone being too close to the Behmor would affect the graph/computer... ! I've always had mine near it while roasting but never had any strange spikes like that.... unless every single profile I've had has been a dud (it's possible!)

  7. #57
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    Wasn’t a constant issue but seemed to happy more if was watching a video for instance, can’t remember if mobile data or wifi changed the efffect thought
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  8. #58
    Mal Dimal's Avatar
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    More likely if you were sending data rather than receiving it, might cause an issue...
    I was experiencing quite a bit of noise with an old faithful t/c that I had been using for many years.
    Decided to replace it with one of Andy's shielded units, and the noise? Just disappeared.

    EMR noise can be a bugger to eliminate completely though, especially if you have a significant length of the t/c cable exposed and unshielded. I imagine though that you are using one of the CS shielded units, if you bought it from Andy...

    Mal.
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  9. #59
    Senior Member Lyrebird's Avatar
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    Couldn't see this anywhere re Roast Monitor:

    Are the outputs from the "heat" and "air" sliders sent to a coms port and if so in what format? EG can I access them to externally control the heat source for a roaster?

  10. #60
    CoffeeSnobs Owner Andy's Avatar
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    Sliders are there just to annotate the graph.
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  11. #61
    Senior Member Lyrebird's Avatar
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    Behmor Coffee Roaster
    OK thanks.



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