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Laboratory Immersion Circulator

Luther_Kroman_2778

Hello everyone!

I recently (as in an hour ago) acquired a Fisher Isotemp 730 Immersion Circulator. I was hoping for some input from the folks here on using laboratory immersion circulators for sous vide applications. If anyone has any experience or thoughts, I would love to hear what you have to say.

Thanks

Luther

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Comments

specialk22tt

That's a sweet deal. Congrats. Let me know how you like it.

Luther_Kroman_2778

I did get it off eBay. It was Buy it Now for $545 or best offer. I paid $200.

specialk22tt

@Luther - did you eBay this one? If so, are they going for cheaper than the poly science units?

Luther_Kroman_2778

So I tested it out, and it seems the main bottom knob is to set the temp. The top knob does seem to a limit adjustment (as it says) but I am not sure what exactly that means. I did have to set low and the unit's circuit breaker would turn the unit off. So it seems the top knob is the temp you do not want the unit to exceed....for safety I guess? I would also seem the second bottom knob is for fine adjustment, but I am not sure the scale. (10=.10 or 10=.01...)

Brendan, thanks for your input. Can't wait to start posting some results.

Brendan_Lee_56950

I'm guessing the top knob sets the limit for temperature and then the bottom is for fine tuning tolerances for more exact temperatures. The bottom looks to be a preset of sorts as well. I'll attach the manual I found for my newer model but the premise is the same.

Guess it won't allow me to attach a pdf directly but here's a link to the PDF http://www.artisantg.com/info/isotemp_2100_series_manual.pdf

Luther_Kroman_2778

So, I got my circulator in. Looks to be in pretty good shape and working order. As much fun as the cooler method has been (cooked bbq chicken for 10 people for the 4th....turned out amazing.) I think this will serve me better. A manual has proven hard to find, anyone think they can give me a bit more info on the front dials? The top one is just a single knob, but the lower one has two. Any info would be awesome. I can just play around with it, but I don't want to mess anything up.

Thanks.

Brendan_Lee_56950

Not sure. Mine is a newer model, only one knob and a more compact design. My guess is that they are probably for fine tuning the temp.

Luther_Kroman_2778

One thing I am a bit confused about are the separate knobs. The unit is on its way, so I don't have it in hand, and can't seem to find an online manual for it. I understand the bottom one is for the preset temps, but what is different about the two above?

Thanks

Brendan_Lee_56950

I have a newer model of the isotemp as my unit. Works great, heats up quickly, very solid circulation. Obviously it will depend on the quality of the product you bought but I recommend giving it a thorough cleaning with bleach, I used a 0.5% solution and then let it circulate at 60C for 2 hours.