RTD - choices - Page 2
- Almico
- Posts: 3612
- Joined: 10 years ago
OK, OK...I have to try a magnehelic. Thanks Mike!!
And issues with chaff and other coffee off-charges?
And issues with chaff and other coffee off-charges?
- CarefreeBuzzBuzz
- Posts: 3863
- Joined: 7 years ago
Ben,
there are other Ambient sensors you can add as well. That would fill your Vint Hub - 2 RTDs, Air Pressure the 3 Ambients
Ambient Temperature
$15
Ambient Humidity
$20
Ambient Absolute Air Pressure/Barometer
$15
Phidget Cables
$9
there are other Ambient sensors you can add as well. That would fill your Vint Hub - 2 RTDs, Air Pressure the 3 Ambients
Ambient Temperature
$15
Ambient Humidity
$20
Ambient Absolute Air Pressure/Barometer
$15
Phidget Cables
$9
- CarefreeBuzzBuzz
- Posts: 3863
- Joined: 7 years ago
I suppose that might depend on where you connect the air hose. I haven't thought of that issue though.Almico wrote:OK, OK...I have to try a magnehelic. Thanks Mike!!
And issues with chaff and other coffee off-charges?
The reason I haven't done this is I am working with RTD maker to see if they can get me a 2"probe with some transition protection for my drop door BT probe.
I have a Word doc with what I have found if anyone wants it email at my user name at gmail.
It has various links embedded it it.
- Almico
- Posts: 3612
- Joined: 10 years ago
The reason I ask is because I have to clean out the exhaust tube on the top off my roaster every couple of months. I get this very "lint like" substance that clings to the walls of everything down stream of the drum.
I got a stock 6" probe from TC Direct. I have 2" poking in and 4" sticking out. It's a 4-wire.
I got a stock 6" probe from TC Direct. I have 2" poking in and 4" sticking out. It's a 4-wire.
- CarefreeBuzzBuzz
- Posts: 3863
- Joined: 7 years ago
I was advised that the portion sticking out influences the readings as well. That must all be relative and I know you know your temps well so it may not matter. So what you see as 400 might be 405 inside the drum? Just what I was told.
- EddyQ
- Posts: 1035
- Joined: 8 years ago
I've been using that Magnehelic for over a year now, connected approximately where you have yours. I added an inline filter to make certain nothing gets into the gauge.Beeroclock wrote: I've added a Magnehelic to measure airflow - I have a damper system)
The first thing that the gauge showed me was how unstable my fan was. I replaced that with a VFD fan and it has been fantastic. I now can compensate for windy days. And yes, it clearly shows when my piping gets the slightest buildup and needing cleaning.
However, I would like to add the "airflow pressure" to an Artisan trace. That Phidget device may be added some day.
LMWDP #671
- CarefreeBuzzBuzz
- Posts: 3863
- Joined: 7 years ago
Eddie,
can you tell us what inline filter you added? That would be helpful for me to add to the documentation.
can you tell us what inline filter you added? That would be helpful for me to add to the documentation.
- Almico
- Posts: 3612
- Joined: 10 years ago
I get an honest 380*F for 1C. I offset it in Artisan with a .97 multiplier to display 370*F. I really don't think the shaft affects it much. The sensor is at the very tip.CarefreeBuzzBuzz wrote:I was advised that the portion sticking out influences the readings as well. That must all be relative and I know you know your temps well so it may not matter. So what you see as 400 might be 405 inside the drum? Just what I was told.
- EddyQ
- Posts: 1035
- Joined: 8 years ago
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- Posts: 182
- Joined: 6 years ago
My thoughts were that it's measuring negative air pressure - i.e sucking from the low input - but there should be a filter on the high input. But I'm new to this so probably wrong.,