ITO/Leva! Controller - Q&A + Experience - Page 14

Need help with equipment usage or want to share your latest discovery?
Cafiza

#131: Post by Cafiza »

Thank you for your comment! Looks like that is the main disadvantage for using the insulation cover. I will keep it off and maybe experiment in the future with cover and PID setup.

sandc

#132: Post by sandc »

> will ... maybe experiment in the future with cover and PID setup

The puny isolation of the latest Rancilio Silvia looks like it might not affect the performance of a PID very much (negatively) but I'd like to know what experience you'd had with its influence on PID configuration?

sandc

#133: Post by sandc »

ito production upcoming: Oct/Nov 2022

Arcoril

#134: Post by Arcoril »

I just placed an order for the Oct/Nov production slot and I'm looking forward to replacing the PID in my Silvia. My only worry is over the latest batch of pressure sensor failures. Will this newest batch of sensors be coming from a new supplier?

sandc

#135: Post by sandc »

> Will this newest batch of sensors be coming from a new supplier?

If you mean "the China sensor", then I might restock from a different supplier but regardless of the supplier (dealer on aliexpress, ebay or amazon), it's always the same sensor from the same manufacturer - so that won't really matter. There is no alternative in that price range. I have no idea when the reliability will be back to normal (as they were in 2021 and before). For now, here are recommended compatible brand-name pressure sensors, all of type "sealed gage", which should give you no trouble:

Honeywell PX3AN2BS200PSAAX (200PSI/13.8bar range, 1/8" NPT threads)
Honeywell PX3AN2BS250PSAAX (250PSI/17.2bar range, 1/8" NPT threads)
Honeywell PX3AN2BS300PSAAX (300PSI/20.1bar range, 1/8" NPT threads)
Honeywell PX3AN2BS016BSAAX (16bar range, 1/8" NPT threads)
Honeywell PX3AN2BS020BSAAX (20bar range, 1/8" NPT threads)
Honeywell PX3AN2BS025BSAAX (25bar range, 1/8" NPT threads)
Honeywell MIPAG1XX020BSAAX (300PSI/20.1bar, G1/4 threads*)

Check for stock at octopart.com or distributors of electrical components (digikey.com, mouser.com, newark.com, farnell.com, rs-online.com). Examples for about 40$ + taxes/shipping:

https://www.newark.com/honeywell/px3an2 ... p/10AC4428
https://de.farnell.com/honeywell/mipag1 ... dp/3643163

* Requires adapter from G1/4" to R1/8"

Arcoril

#136: Post by Arcoril »

sandc wrote:>

Check for stock at octopart.com or distributors of electrical components (digikey.com, mouser.com, newark.com, farnell.com, rs-online.com). Examples for about 40$ + taxes/shipping:

https://www.newark.com/honeywell/px3an2 ... p/10AC4428
https://de.farnell.com/honeywell/mipag1 ... dp/3643163

* Requires adapter from G1/4" to R1/8"
Thanks! I'll keep an eye out for those parts in case the included one goes bad.

greyberry

#137: Post by greyberry »

Hi Dietmar,

I am happy to announce that I've finally received the ito kit.

I ordered a Touchcell board from the US shop for the water level functionality, but despite the picture being of P14701A3Z (that matches your instructions), what came with the shipment appears to be a different sensor from Saeco (it has much more resistors and I think a CPU module). Pretty sure it won't work with ito but wanted to check with you before initiating a return.

Can you please have a look at the photo and comment: https://i.imgur.com/wupn444.jpg?1

Thanks!

sandc

#138: Post by sandc »

> I ordered a Touchcell board from the US shop

Not the correct sensor (not a Saeco P14701A1Z, P14701A2Z or P14701A3Z). In my country, those Saeco sensors are no longer available at regular dealers. One only finds them used/refurbished on ebay. They look like this:


greyberry

#139: Post by greyberry »

Hi Dietmar,

Since I had that TouchCell already I went rogue and tried it. It appears to be working.

I set it up by choosing 'TANK' under Setup > Contacts > AUX3 and picked the tank logic to 'Low'.

With these settings, a REFILL message is displayed and a buzzer beeps upon being detached form the tank. Notifications go silent upon sensing the water through the tank's wall. Below are the screenshots and a photo of a sensor.








sandc

#140: Post by sandc »

greyberry wrote:Since I had that TouchCell already I went rogue and tried it. It appears to be working.
Interesting. When I bought a similar-looking sensor a while ago for tests, it didn't work. Must have been defective. With the recommended sensors, there can be sensitivity issues if they are mounted on a 3D-printed bracket (to press the sensor against a tank): In some cases, the nearby material of the bracket makes them too sensitive. They start detecting the tank even if it is empty or just a bit wet. In such cases, the sensor must be de-sensitized with tape over the active area. I wonder how your sensor is behaving in that regard. Have you installed it on a bracket?