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D-Guard² Instruction Manual
15.7 Manual Zero Calibration
Access the calibration menu. See
NOTE: Fresh air can be used in place of zero-grade air.
NOTE: The D-Guard² Trend Bar is used to determine when the rate of change of the applied
gas has decreased to less than ± 0.1% of full scale per second.
Step 1. Use
to go into manual zero mode.
Step 3. Use
to adjust or
Step 5. Use
to exit or
WARNING! Incorrect calibration can result in injury or death to personnel.
21
section
15.1.
to save.
to cancel.
Step 2. Apply the correct gas. Use
Step 4. Use
to exit or
Step 6. Calibration completed.
to adjust.
to continue.
Item Number 201018
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