MSA Toxgard II User Manual

• Use Procedure Number 2 to zero your unit for the following
gases:
• Chlorine
• Nitrogen Dioxide
• Chlorine Dioxide
• Hydrogen Cyanide
Procedure Number 1
• This procedure uses items found in Calibration Kit 40, 42, and
54.
• For oxygen units, skip to Step 3.
1. If Using the zero cap (FIGURE 3-6):
If the ambient air is suitable, with no traces of the gas of
interest, place the zero cap (P/N 710535), from the
Calibration Kit, over the SensorGard inlet and wait two
minutes; otherwise, use zero gas.
2. If Using zero gas cylinder:
a. Locate the zero gas cylinder and the 1.5 LPM Flow
Controller (P/N 478358).
Figure 3-6.
Zero Cap Placement
Chapter 3, Calibration
3-8

MSA Toxgard II Specifications

General

Brand	MSA
Model	Toxgard II
Category	Monitor
Language	English