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How to adjust the brew pressure of a Giotto Premium?
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Drummo
Senior Member


Joined: 14 Jul 2004
Posts: 54
Location: Perth, Western Australia
Expertise: I love coffee

Espresso: Giotto Premium
Grinder: Mazzer Mini
Posted Sun Oct 10, 2004, 8:18pm
Subject: Re: How to adjust the brew pressure of a Giotto Premium?
 

Hi Dan and bigbm,

If one was going to fit the  guage into the casing perhpas one could use the genuine ECM pressure guage from the Veneziano A 1 (see: http://www.ecm-espresso.it/product/VENEZ_A1.htm )  or the dual guage from the Veneziano A 2 or 3 (see: http://www.ecm-espresso.it/download/Venez_GB-D-I.pdf ).

I wonder if the dual guage from the A 2 or 3 might even fit without modifying the case??


John D
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Ozark_61
Senior Member
Ozark_61
Joined: 18 Dec 2004
Posts: 428
Location: Springfield, MO
Expertise: I love coffee

Espresso: ECM Giotto
Grinder: Mazzer SJ
Roaster: Behmor 1600, SC/TO, Poppery...
Posted Sat Dec 31, 2005, 4:19pm
Subject: Adding a dual guage to giotto?
 

Has anyone tried this?
Geoff

Drummo Said:

Hi Dan and bigbm,

If one was going to fit the  guage into the casing perhpas one could use the genuine ECM pressure guage from the Veneziano A 1 (see: http://www.ecm-espresso.it/product/VENEZ_A1.htm )  or the dual guage from the Veneziano A 2 or 3 (see: http://www.ecm-espresso.it/download/Venez_GB-D-I.pdf ).

I wonder if the dual guage from the A 2 or 3 might even fit without modifying the case??


John D

Posted October 10, 2004 link

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leoz
Senior Member


Joined: 14 May 2006
Posts: 279
Location: CT
Expertise: I love coffee

Espresso: ECM Giotto P, Elektra MCAL
Grinder: macap m4 stepless
Vac Pot: Press Pot - Bodum
Drip: Cuisinart DBG600
Roaster: Hot Top
Posted Thu Jun 1, 2006, 9:29am
Subject: Re: How to adjust the brew pressure of a Giotto Premium?
 

is there any way to measure, or at least gauge the pressure coming out?  $300 for the pf gauge is a bit pricey :/
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leoz
Senior Member


Joined: 14 May 2006
Posts: 279
Location: CT
Expertise: I love coffee

Espresso: ECM Giotto P, Elektra MCAL
Grinder: macap m4 stepless
Vac Pot: Press Pot - Bodum
Drip: Cuisinart DBG600
Roaster: Hot Top
Posted Thu Jun 1, 2006, 9:30am
Subject: Re: How to adjust the brew pressure of a Giotto Premium?
 

i think i found my answer:
# If you have a pressure sensor panel mounted, use it while running the pump with a blind filter to make the adjustment.  If you have a pressure sensing PF, use it while adjusting (it blocks the pumpflow). Now here's the new one, you can approximately set these things without a pressure guage. Vibe pumps drain 2 to 2.5 ounces of water in 25 seconds when they are at 8.5 to 9.5 bar. So put in a blind filter, use a measuring cup to catch the run off back to the tank, and adjust it to get that flow rate (wait for the pressure to max before measuring, you'll hear this in the pump going quiet as the flow stops, it'll take up to 10 seconds for preinfusing ones).

from "Adjusting vibe pump pressure on HX machines"
thx :)
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