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D-Guard² Instruction Manual
15.5 Auto Zero Calibration.
Access the calibration menu. See
NOTE: Fresh air can be used in place of zero-grade air.
Step 1. Use
to go into the auto zero mode.
Step 3. Use
to save or
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.
Step 5. Use
to exit or
NOTE: The D-Guard² Auto Calibration mode determines when the rate of change of the
applied gas has decreased to
WARNING! Incorrect calibration can result in injury or death to personnel.
19
section
15.1.
to cancel.
to cancel.
less than ± 0.1% of full scale per second.
Step 2. Apply the correct gas. Use
Step 4. Use
to exit or
Step 6. Calibration completed.
to start.
to continue.
Item Number 201018
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