Perform a Complete Calibration
• If this is the first calibration after the sensor element is replaced,
refer to "Initial Calibration."
• If this is an oxygen sensor, refer to "Oxygen Calibration."
• For CL
2
and CLO
2
calibration, do not mix regulators. Use only
one regulator (P/N 478359) for each of these gases. They will
not work properly if one regulator is used for multiple gases.
Identify your particular Toxgard II Gas Monitor and select the
proper one of the following two calibration procedures.
• Use Procedure Number 1 to calibrate the Toxgard II Gas
Monitor for the following gases:
• Carbon Monoxide
• Oxygen
• Hydrogen Sulfide
• Sulfur Dioxide
• Hydrogen Chloride
• Nitric Oxide
• All Combustible gases.
• Use Procedure Number 2 to calibrate the Toxgard II Gas
Monitor for the following gases:
• Chlorine
• Nitrogen Dioxide
• Chlorine Dioxide
• Hydrogen Cyanide.
Procedure Number 1
This procedure uses the items found in Calibration Kit 40, 42,
and 54.
• For oxygen units, skip to Step 3.
• For Calibration Kit 54 diffusion Hydrogen Chloride, run HCL gas
through flow control regulator and tubing for five minutes before
starting a calibration. Dedicate this flow control regulator and
tubing for use with HCL gas only.
Zeroing
1. If Using the Zero Cap:
If the ambient air is suitable, with no traces of the gas of
interest, place the zero cap (P/N 710535), from the
Chapter 3, Calibration
3-15
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