Operation ECA 45038 Instruction 0024-94004. Press > key to place cursor on the month, day, or year digit to be changed;then, use ∧∨ keys to set that digit to desired number. Repeat this stepuntil all digits are set correctly.5. Press ENTER to save selections and start clock. Then press ESC to returnto Setup List screen.2.17.6 TimeTime is stored in the format HH:MM:SS am/pm. Set the analyzer’s internalclock to the current time as follows:1. Press SETUP key to display the Setup List screen.2. Use ∧∨ keys to place cursor next to “Time”; then press ENTER to displaythe analyzer’s current time setting.Timeª 11:45:30 am3. Press ENTER to stop clock and move cursor over first digit of timedisplay.4. Press > key to place cursor over the hour, minute, or second digit to bechanged. Then, use ∧∨ keys to set that digit to the desired number.Repeat this step until all digits are set correctly.5. To change am/pm setting, first use the > key to place cursor over firstletter of am or pm; Then use the ∧∨ keys to select correct value.6. Press ENTER to save selections and start clock. Then press ESC to returnto Setup List screen.2.17.7 O2 ReferenceThe calculated values of CO, NOx, and SO 2 can be individually referenced toa specific Oxygen percentage of between 0 and 15%. Set up an Oxygenreference for each gas as follows:1. Press SETUP key to display the Setup List screen.2. Use ∧∨ keys to place cursor next to “O2 Reference”; then press ENTER todisplay the O 2 Reference menu.O2 Referenceª CO Ref to O2NOx Ref to O2SO2 Ref to O2