Standard Operation Procedure for 2 Channel Oscillographs The purpose of this document is to ensure that 2 channel Oscillograph is used in pr oper way. 1. Starting 2 channel Oscillograph 2. Connect the unit to a main supply 3. Switch on 4. Push the ink cartridge into the holes 5. Fit the recording pens into cradle 6. Load the paper roll 7. Check that you have sufficient paper and ink 8. Remove the protective caps from the marker pen 9. Select a chart speed and chart drive lever to on and pen to the down 10. Adjust the pen zero control so that pen is writing in the center 11. The Oscillograph is ready to be connected to your input.