Archived posting to the Leica Users Group, 2003/09/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The Jobo will indeed bring the solutions up to temperature, but I don't think the analog control on the CPE2 is all that precise. So I verify the solution temperatures separately just for my own peace of mind. I switched to a mercury thermometer after I discovered that the alcohol fill thermometer I had been using was reading several degrees lower than the actual temperature with the result that black and white film came out reticulated due to the colder wash water and slide film had a strong magenta cast. I also use the mercury thermometer as a check against the dial thermometer on the faucet I use for wash water. As for getting the solutions up to temperature quickly, I fill the Jobo trough with water at about 95 degrees Fahrenheit, then let the processor bring both the water bath and the chemistry up to 100 degrees. The material of which the Jobo bottles are made does a good job of conducting heat. Roy On Wednesday, September 10, 2003, at 04:13 PM, Richard F. Man wrote: > Thanks all for the answers! I think I will do it, after discussing it > w/ the AFO (Assistant Financial Officer, I do all the finance stuff, > she signs the checks so to speak :-) ) later. > > One final question - "..good mercury thermometer to verify solution > temperatures..." I thought the Jobo will take care of the water > temperature, but I guess the solution temperature is important too? > What is the process of getting the right solution temperature? Zip > water in microwave, check w/ thermometer and adjust? > > At 01:20 PM 9/10/2003 -0400, Roy Zartarian wrote: >> That's pretty much the process in a nutshell except that you have to >> pour and drain each step of the chemistry at the proper time, a task >> facilitated by the use of the correct Lift for the processor. Other >> items you might consider acquiring are a good mercury thermometer (I >> got mine from Edmund Scientific) to verify solution temperatures, >> appropriately graduated measuring cylinders (same source) if you >> decide to mix small batches of chemistry from a 5 liter 6-step kit, >> and a tupperware or Rubbermaid container to hold the stabilizer or >> final rinse since that stuff shouldn't be used on plastic reels. >> >> ... > > // richard <http://www.imagecraft.com> > <http://www.dragonsgate.net/mailman/listinfo> > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html