RKI Instruments Data Cal 2000 - Manual (Page 25)

Data Cal 2000 Hardware Setup • 20
Docking Station Calibration Gas Fitting Connections
The calibration gas fittings on the back panel of the docking station are
designed to be used with calibration gas cylinders that are fitted with
demand flow regulators. The AIR fitting may be used with a demand flow
regulator and a cylinder of zero emissions air, but this is not normally
necessary since the docking station will generally be in a fresh air area.
The types of calibration gas cylinders used depend on the gas sensors
installed in the GX-2001’s, GX-2003’s, and GX-2009’s being connected
to the docking station. Typically a 4-gas mix will be used if all or most
instruments being connected to the system are 4-gas units. If any
GX-2003’s that are 5-sensor units are being connected, a %volume CH4
cylinder will also be needed. Use Table 2 below as a guide in determining
which and how many calibration gas cylinders are appropriate for your
system.
Table 2: Recommended Gas Cylinders
Typical Instrument Types
Recommended Calibration Gas
Cylinder(s)
GX-2001
LEL/Oxy/H2S/CO 4-gas mix with CH4/Oxy/H2S/CO
GX-2001
LEL/Oxy/CO 3-gas mix with CH4/Oxy/CO
GX-2001
LEL/Oxy/H2S 4-gas mix with CH4/Oxy/H2S/CO
GX-2003
LEL/Oxy/H2S/CO 4-gas mix with CH4/Oxy/H2S/CO
GX-2003
%Vol CH4/LEL CH4/Oxy/H2S/
CO • 4-gas mix with CH4/Oxy/H2S/CO
• %Volume CH4 in air
GX-2003
LEL/Oxy/CO 3-gas mix with CH4/Oxy/CO
GX-2003
LEL/Oxy/H2S 4-gas mix with CH4/Oxy/H2S/CO