The Calibration Kit contains a ZERO gas scrubber which can be used in
place of a ZERO gas cylinder if the ambient air around the Chillgard LS
contains little or no refrigerant.
Relative humidity may have a small effect on the output of the unit. If
dry gas is used, Nafion Tubing (P/N 813628) can be used to humidify
the sample stream going to the monitor.
The zero gas scrubber must be replaced periodically. The frequency of
replacement depends on the concentration of the ambient refrigerant
vapors.
The SPAN or ZERO cylinders (if needed) may be included with the
Calibration Kit; cylinders shown in TABLE 4-1 are available from MSA.
Tube and Tee Assembly
(P/Ns 603806 and 636866)
1.5 LPM Flow Controller (P/N 478358)
"
CAUTION
Connector Assembly (P/N 711533)
Span Gas Scrubber (P/N 803874)
(Replace protective caps after use.)
4-7
Zero Gas Scrubber (P/N 803873)
(Replace protective caps after use.)
Figure 4-3. Kit Components