Hello,
I just purchased my GEK and I am anxiously awaiting its' arrival. While waiting, could someone please give me some insight into what is used for a vacuum transducer when running the GCU?
Thanks,
Eric
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2 replies to this topic
#2
bear@apl
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Senior Member
Posted 23 February 2011 - 06:48 AM
Hi Eric,
We use Freescale MPXV7002DP and MPXV7007DP sensors on the GCU/PCU.
The first can read +/- 2 kPa (~8 inches of water), and the latter can read +/- 7 kPa (~28 inches of water). The full fill GCU includes 2 lower range and 4 of the higher range sensors.
These output a 0-5V signal, which the GCU converts with a 10-bit ADC and is then scaled internally to Pascals (e.g. the datalogging code will output readings in Pascals). With the current code base the display, however, will show readings in tenths of an inch of water (10 = 1 inch water).
Do you have any interesting plans on what to use these for?
Cheers,
Bear
We use Freescale MPXV7002DP and MPXV7007DP sensors on the GCU/PCU.
The first can read +/- 2 kPa (~8 inches of water), and the latter can read +/- 7 kPa (~28 inches of water). The full fill GCU includes 2 lower range and 4 of the higher range sensors.
These output a 0-5V signal, which the GCU converts with a 10-bit ADC and is then scaled internally to Pascals (e.g. the datalogging code will output readings in Pascals). With the current code base the display, however, will show readings in tenths of an inch of water (10 = 1 inch water).
Do you have any interesting plans on what to use these for?
Cheers,
Bear
#3
bauereri
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Junior Member
Posted 26 February 2011 - 12:56 PM
Hello Bear,
Thanks for the information. I'm probably putting the cart before the horse, but what else can I do while I wait? :)
My ultimate plan is to use the GEK as the energy input to a monotube steam boiler driving a steam engine. I have a huge learning curve to go through to do that, but it's the end goal right now. To do this effectivly, I think I will need one controlling element running both the GEK and the boiler. My plan is to use either an Automation Direct PLC or Giddings & Lewis PLC as the controlling element(I have a couple of each lying around).
Any words of wisdom for a project like this?
Thanks for the information. I'm probably putting the cart before the horse, but what else can I do while I wait? :)
My ultimate plan is to use the GEK as the energy input to a monotube steam boiler driving a steam engine. I have a huge learning curve to go through to do that, but it's the end goal right now. To do this effectivly, I think I will need one controlling element running both the GEK and the boiler. My plan is to use either an Automation Direct PLC or Giddings & Lewis PLC as the controlling element(I have a couple of each lying around).
Any words of wisdom for a project like this?
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