User:Kalkao/notebook/Using the Klett Photoelectric Colorimeter


 * 1) Turn the front knob so that the dial points to zero
 * 2) Set the power to 100
 * 3) Turn the front top knob to align the red marker with the black line
 * 4) Insert the blank
 * 5) *Remember the orientation of the flask
 * 6) Switch the light path on
 * 7) Turn the knob next to the blank to re-align the red marker
 * 8) Turn the light path switch off
 * 9) Remove the blank
 * 10) Insert the sample in the same orientation as you did the blank
 * 11) *Be sure to wipe the water off of the bottom of the flask
 * 12) *Use a kim wipe to clean the arm of the flask. This gets rid of the condensation without scratching the glass.
 * 13) Turn the light path switch on
 * 14) Turn the front knob to realign the red marker
 * 15) Record the klett measurement
 * 16) Turn the light path switch off
 * 17) Remove the culture
 * 18) Turn the power back to 30
 * 19) Every time you insert a sample, turn the light path on, and every time you remove a sample, turn the light path off