Clamp the alligator clips to together and turn the instrument on. A reading
of 0 mV should register on the screen. If it does not, you have two options:
Notify the Prep Lab, and someone will come to adjust the reading to zero
Use the reading as a base reading. If it is a neagative potential, add the
absolute value of this potential to any subsequent readings. If it is positive,
subtract this value from any subsequent readings.
To take readings, clamp the alligator clips to the approptiate electrodes
and place the electrodes in the solution. Be sure not to let the electrodes