HI Andreas-- It's not the bands that are slipping. The potentiometers are shot. Info is on the isogeochem wiki (I don't have the info with me). take care, gerry On 1/8/2016 4:47 AM, Pack, Andreas wrote: > Dear Isogeochemists, > > apart of having the annoying problem with the slipping rubber belt (that we are dealing with for the past years); since before christmas the “Hardware calibration” does not work anymore. When doing hardware calibration (iIrrespective of doing it in the Acquisition or Instrument control window); bellows are not moving and software freezes. We are using Isodat 3. > > The signal calibration still works well after adjusting the bellows potentiometer position manually. > > Did any of you had a similar problem (and a solution)? > > Andreas > > ———————————————————————————— > Prof. Dr. Andreas Pack > Universität Göttingen > Geowissenschaftliches Zentrum > Goldschmidtstrasse 1 > D–37077 Göttingen > Germany > Web: http://www.uni-goettingen.de/en/78572.html > Tel.: (Ms. Andrea Beckmann, secretary) +49 551 397901 > Fax: +49 551 3910452 > Tel: (office) +49 551 3912254, (mobile) +49 175 2981638 > . >