Anita no longer water dancing during cooling flush? - Page 2

[erics]

I know nothing about a Jaeger pstat BUT that deadband would seem to be WAY TOO MUCH. It seems as though all of the "smaller" pstats such as Ceme, Mater, Jaeger simply control a 25 amp SSR which does the switching on/off of the heater elements. I know the Anita/Ceme combo work that way but as regards others I defer to someone more knowledgeable re machine configuration.

The Ceme pstat which comes as standard on Anita has an over abundance of yellow "do not touch" paint on the deadband adjustment screw and my deadband is unusually good at 0.15 bar so I let it alone. Typical, actual deadband appears to be 0.2 bar (gage swing, not light swing) from what I've read.

206 F seems very correct for the deadband you are reporting however I would give Chris Coffee a call and see whether that Jaeger DB is "correct". Has it always been this large?

Eric S.

[cannonfodder]

1.2 to .7 bar is an enormous deadband. It should be more like 1.2 off and 1.0-1.05 on, or tighter.

[jesawdy]

Here's a link to a PDF on Jaeger Regulation pressure stats:

http://www.controldistributions.c...ure%20Switches.pdf

The deadband is not adjustable per this PDF, but should be much smaller than what you experienced.

[CyclingCraig]

OK.. I called Chris Coffee and they said the Jaeger pStat deadband is a little greater than other pStats and the deadband I am seeing is normal?

I installed Eric's electronic thermometer adapter in Anita and here are some REAL boring videos of a flush and pull:

Here is a flush after about a 3 hour warm up AND after about a 20 wait after my previous shot. How does the temps look to others?


Now this is about 70 to 80 seconds after the above video: Normal espresso shot being pulled:


Eric S: Is that normal temps for YOUR Anita?

Thanks again guys... Now I am thinking I want to change out my Pstat? But a new Jaeger is almost $70

[CyclingCraig]

I'M A TOOL !

How many Areo-Space Engineers turned computer programmes does it take to read a pressure gauge?

Answer: MORE than just me!

I just realize each mark on my pressure gauge is .05 Bar NOTTTT .1 Bar..

So my boiler press was cycling from .85 Bar to 1.1 Bar.. So pStat seems to be working FINE!

I'm an IDIOT!

But still not sure about my flushes and water dance.. Still would like to hear what people think about Temps from previous posts

[erics]

Well, firstly, if 0.5 bar deadband is "normal" for a Jaeger pstat, please continue to send me emails reminding me NEVER to buy one of those.

There is a very knowledgeable person who hangs out on AC called DaveB who is "giving away" Ceme pstats for the cost of postage. Here is his website:

http://www.hitechespresso.com/

As regards the operation of the digital thermometer you have installed, it is operating properly BUT you initiated the shot at what I consider (emphasis on "I consider") to be a low temp and hence the shot should have been bitter. I would typically recommend starting at a temp of 198 F.

Eric S.

[mgwolf]

Eric,
When you suggest starting at 198, is this after you've flushed down to 198? Is this a flush-and-go shot, or do you wait for a bit after you've gotten to 198? Michael

[erics]

My "method" of flushing hx machines is different (sort of) from that discussed by Dan in his beautifully written article on "how I learned to Love ..."

BUT, WHAT'S REALLY IMPORTANT is why it is different and it all depends on your modus operandi. Mine is to make 3 to 4 cappys every morning spaced anywhere from 15 to 30 minutes apart for me and me only.

I flush the machine until I read about 185 on the adaptor. If I flush and prepare the puck simultaneously, I usually end up twiddling my thumbs for a while. If I wait until the end of the flush to start grinding, weighing, tamping, etc., etc., I am hard pressed to meet the 198 mark. I have not been known to show championship form at 7:00 AM.

If you flush the machine to 185 and stop, the temperature immediately shoots up, usually past 198 (but this depends on your pstat setting and your altitude) and starts decreasing - say to 195-196 - and then starts increasing back to normal, long term idle temp (if you did nothing). When it hits 198, start the shot. This is, in a 100% manner, using the group to cool the water from the hx because surely, by this time, the hx water is pretty hot.

This "method" wastes a few more ounces of water than normal but hits the "right" temp every time. Add 2.5 F to the point at which you start and this will be your average temperature.

Skol,

Eric