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16
INDUSTRIAL SCIENTIFIC
Revision 5 (p/n: 17120932)
Actions Available from the Enter Security Code Screen
Action Response
Mode button
press
If security code on screen is correct, go to
Zero Initiate (or Calibration screen for O
2
)
If security code on screen is incorrect, go to
Gas Monitoring screen
Enter button
press
Increment display value
Mode and Enter
buttons held
(3 sec.)
+
Go to Gas Monitoring screen
30 second
timeout
Go to Gas Monitoring screen
Zero Initiate (Toxic Sensors Only – For Oxygen, Skip to Calibration
Section)
IMPORTANT:
Before zeroing, ensure the instrument is located in a fresh air
environment. If background gas is present, the use of a zero air cylinder is
recommended.
The Zero screen allows you to begin the zeroing process (for toxic sensors), by
pressing the Enter button. The Zero icon will blink, signifying that zeroing will
begin if you press Enter. For Oxygen sensors, this screen will not be displayed.
Pressing the Mode button at this screen will navigate to the Days Since Calibration
screen.
While zeroing, the display will show the zero icon, the gas type, and a blinking
clock icon to show that this step will take some time. Once complete, the
instrument will show either a “Pass” or “Fail.”
Zero Initiate Screen
Zeroing In Process