Starting next week (7/27/09), I will make a Scace Thermofilter (version 1, no pressure gauge) available for weekly rental to H-B members. I will also include a calibrated Fluke 54 II thermometer.

The weekly rental rate will be $45, plus a flat fee of $16 for insured shipping to any US address. A refundable security deposit of $250 will be required. Return shipping will your responsibility.

If you wish to record data on the Fluke: for no charge I will download whatever is stored when I receive it back, import it into an Excel spreadsheet, and email it back to you. (Of course, you can also replay any stored data and jot it down on a notepad yourself. The Fluke 54 will record up to 500 data points).

If your machine has a standard 58mm group (e.g. E-61, Silvia), it will fit. I also have a Gaggia portafilter that allows use of the Thermofilter on a Gaggia machine.

I am making this available because I have two Thermofilters. I use one of them nearly every day in testing PID kits, and this one is my spare. But it seems like a waste to have it just sitting on the shelf.

Contact me through H-B, or jim at pidkits dot com to make arrangements. Probably PayPal will be the easiest way to handle the finances.

Jim

PS - if you send a private email, please provide your H-B user ID since I wish to have this be for H-B members only.

Jim -

This is a wonderful venture on your part.

Here's hoping you have developed some explicit machine cleaning and flow rate numbers for those who rent.

erics wrote:Here's hoping you have developed some explicit machine cleaning and flow rate numbers for those who rent.

Uhhhhhhh.

Machine cleaning -- yes.

Flow rate -- not sure about that one. On my machines, a clean Thermofilter passes between 50ml and 60ml in 25 seconds. What else do you think users should know?

Jim

JimG wrote: On my machines, a clean Thermofilter passes between 50ml and 60ml in 25 seconds. What else do you think users should know?

Jim,

I thought that the original design of this device was calibrated in such a manner as to pass 60ml in 25 seconds for a machine pushing at 9 BAR. Any significant variation would be indicative of a different pressure. Am I on the right track here, or did I misinterpret the original specs?

Aside from this, I'd imagine that the Scace thermofilter device thread should be required reading for anyone interested in your very generous offer.

In the aforementioned thread, BobY, Barry and a few others also mention that significantly lower flow may be attributed to the dread "swarf", or other detritus.

-s.

Sherman wrote:I thought that the original design of this device was calibrated in such a manner as to pass 60ml in 25 seconds for a machine pushing at 9 BAR. Any significant variation would be indicative of a different pressure. Am I on the right track here, or did I misinterpret the original specs?

AFAIK, this is correct.

Jim

Sherman wrote:I thought that the original design of this device was calibrated in such a manner as to pass 60ml in 25 seconds for a machine pushing at 9 BAR.

I could be completely wrong, but the recollection that I have from its development and shakedown thread was that it would pass 70 - 76ml in 30 seconds to imitate what would exit the group on a 60ml pull, 10 or 16ml being retained by the puck? Or has there been some adjustment to that since?
Greg, you out there?

feh. Who needs Greg to chime in when we have the the 1-2 punch of prior posts and a moderator who is patient enough to use the "search" function? Thanks for making me feel that much lazier.

-s.

Sherman wrote:feh. Who needs Greg to chime in when we have the the 1-2 punch of prior posts and a moderator who is patient enough to use the "search" function? Thanks for making me feel that much lazier.

Ehm, I'll double that 'thank you for corroborating a failing memory' there Dan!