D-Guard² Instruction Manual
Item Number 201018
19
15.5 Auto Zero Calibration.
Step 2
. Apply the correct gas. Use to start.
Step 3
. Use to save or to cancel.
Step 4
. Use to exit or to continue.
WARNING! Incorrect calibration can result in injury or death to personnel.
NOTE: Fresh air can be used in place of zero-grade air.
Step 1
. Use to go into the auto zero mode.
Step 5
. Use to exit or to cancel.
Step 6
. Calibration completed.
NOTE: The D-Guard² Auto Calibration mode determines when the rate of change of the
applied gas has decreased to
less than ± 0.1% of full scale per second.
Access the calibration menu. See
CAUTION: You must monitor the alarm states before you exit the calibration menu, as alarms
may remain active until the calibration gas has been removed from the sensor.
