The original PSL chiller has been fitted out with the vortex style flow sensor. In turning the crystal chiller on, we found that the controller unit was faulty and did not display the Termotek logo on start up. The controller was replaced and the chiller powered up okay. We ran the chiller with the outlet connected to the inlet without any problems. The flow sensor calibration factor was changed to 0970 to account for the vortex sensor. The exercise was repeated with the diode chiller. At the moment the chillers are in the large item access area, waiting for a convenient time for us to roll them back to the chiller room. The crystal chiller needs another pigtail cable to be made. JeffB, Peter