RapidCoffee wrote:I already rigged up a PF gauge to measure & adjust the brew pressure to ~9 bar. We're discussing steam pressure here.

Duh! Right you are. You either need to adapt a conventional pressure gauge to your gauge input line or borrow a stock gauge that you know is good.

RapidCoffee wrote: Has anyone (successfully) retrofitted an S1V1 with the dual pressure gauge? Got a dual manometer on the Vetrano, so yes, I know what I'm missing.

Enough owners have inquired about it so that CC has put the parts on order that they didn't have on hand. If your S1 has the floating gauge you will have to drill a hole in the frame for the bracket on the new gauge. Other then that it seems pretty straight forward. Gauge, chrome front cover & plumbing pieces.

Here's a pic of the rear of the dual manometer:

Yep, it's the gauge: reads 0.5 bar at rest. So it looks like I'm running ~1.2 bar after all. Sigh... fun and games this weekend. Maybe I can get it recalibrated. Otherwise the machine seems to be running just fine.

Thanks for the manometer info.

This thread: http://s1cafe.com/viewtopic.php?f=20&t=522 mentions a round(face) dual manometer that EPNW sells or sold that would fit the S1V1. With that gauge or one sourced elsewhere & some plumbing pieces you could do the upgrade without replacing the front cover.

This page compares the changes from V1 to V2. http://s1cafe.com/s1v2/S1vsVII.php The improved temp sensor & some of the sound reduction mods are worth looking into.

RapidCoffee wrote:No, but I'll be glad to test the Vetrano, and rerun the S1 as well. Give it a try, and we can compare results. I'd suggest full bore steam for a fixed time period (maybe 15 sec?), then weigh.

The reviews used to include "final volume" in the steam numbers, but the difference was too small for most of the equipment to justify the effort. The old La Spaziale S1 - Steaming Performance includes numbers for the S1 and a few other HX espresso machines.

JohnB. wrote:This thread: http://s1cafe.com/viewtopic.php?f=20&t=522 mentions a round(face) dual manometer that EPNW sells or sold that would fit the S1V1. With that gauge or one sourced elsewhere & some plumbing pieces you could do the upgrade without replacing the front cover.

This page compares the changes from V1 to V2. http://s1cafe.com/s1v2/S1vsVII.php The improved temp sensor & some of the sound reduction mods are worth looking into.

Actually I failed to find one on EPNW that would fit. I think the current S1 single gauge holes is 52mm but all the round dual gauges on EPNW are 60mm diameter.

Chas

JohnB. wrote:This thread: http://s1cafe.com/viewtopic.php?f=20&t=522 mentions a round(face) dual manometer that EPNW sells or sold that would fit the S1V1. With that gauge or one sourced elsewhere & some plumbing pieces you could do the upgrade without replacing the front cover.

This page compares the changes from V1 to V2. http://s1cafe.com/s1v2/S1vsVII.php The improved temp sensor & some of the sound reduction mods are worth looking into.

chasrimpo wrote:Actually I failed to find one on EPNW that would fit. I think the current S1 single gauge holes is 52mm but all the round dual gauges on EPNW are 60mm diameter.

Thanks to you both, maybe in the future. The dual manometer is nice but not essential. Coming from the HX and lever universes, I'm not overly concerned about hyperaccurate brew temperate management. And finally, perhaps I'm fortunate, but my S1 is extremely quiet, and has no need for sound reduction.

HB wrote:The reviews used to include "final volume" in the steam numbers, but the difference was too small for most of the equipment to justify the effort. The old La Spaziale S1 - Steaming Performance includes numbers for the S1 and a few other HX espresso machines.

Great review, spot on with my experience so far. Please note: my only gripe with the S1's steaming is that, with the stock arm and tip, it's too fast for producing ideal microfoam using small quantities of milk (4oz or less). For frothing larger quantities, it's great.

RapidCoffee wrote:Great review, spot on with my experience so far. Please note: my only gripe with the S1's steaming is that, with the stock arm and tip, it's too fast for producing ideal microfoam using small quantities of milk (4oz or less). For frothing larger quantities, it's great.

The .9mm(1mm+) 4 hole tip works much better when steaming small amounts of milk. The 1.3mm(1.5mm) 4 hole tip will blow the milk right out of the pitcher if you aren't careful! The modified tip I'm using falls half way between the two actual measurements & works well when steaming small & large amounts. I opened up the holes in the .9mm tip with a wire size #55 drill bit to give me a tip half way between the two current offerings.

RapidCoffee wrote:Yep, it's the gauge: reads 0.5 bar at rest. So it looks like I'm running ~1.2 bar after all. Sigh... fun and games this weekend. Maybe I can get it recalibrated. Otherwise the machine seems to be running just fine.

It's been a busy week, but I finally got an chance to open up the S1 today and remove the pressure gauge:

Steam boiler pressure should read 0.0 at rest. How did I miss this?

Gauge after removal from the machine:

Still reads 0.5 bar. Maybe the barometric pressure in my kitchen is really really high?

The gauge seems to work, except for the offset of 0.5 bar. I was unable to get the lil' sucker open for recalibration. Two screws come off the rear, but this doesn't help. Has anyone successfully recalibrated one of these gauges? Any helpful hints? Guess I'll give Chris Coffee a call next week.

Incidentally, the question of wet steam is still alive and well...

Hi John,

even though mine is a different machine I think it's worth mentioning that I've disassembled my Elektra double gauge:



The PF pressure side was (and still is) broken and I was hoping to fix it. I removed the glass shield and the dials to look under the scale plate, but there's not much you can do there, so the scale went back on and I had to reattach the dials. Now this is a rather tricky part as you don't know how they were placed before you took the bloody thing out, so you simply have to guess and assume that 'zero' means the dial placed so that there's no tension in the spring mechanism. Whether that's true I don't know, maybe 'zero' means the spring being a bit stretched into the negative area of the scale? Who knows, so my advice is, buy a new pressure gauge:)

Regards,
dsc.