Connecting Calibration Gas, SV-3 Attached • 36
standard 4 sensors or is a version that has less than the 4 standard sensors but still
has an H
2
S sensor. If the GX-6000 does not have an H
2
S sensor, then a 3-gas mix,
LEL/Oxygen/CO, should be used for the GAS 1 fitting in order to protect the CO
sensor’s charcoal filter.
The GAS 2, GAS 3, GAS 4, GAS 5, and GAS 6 fittings are normally used for smart
sensors (i.e. PID, ESS-03, etc.). If you have a smart sensor installed (i.e. PID, ESS-
03, etc.), a special cylinder for the target gas of that sensor needs to be used for
calibration. See the table below for examples of needed cylinders for various
GX-6000 combinations. Keep in mind that if you are going to use a 5-gas cylinder to
calibrate one of the smart sensors, make sure that the special sensor is assigned to
GAS 1 (see “Inlet Parameters” on page 47). See “Spare Parts List” on page 116 for
part numbers of available cylinders.
If your instrument has no standard sensors, then the GAS 1 fitting may be used for
gas to test a smart sensor.
The SV-3 is useful for single-station use or multi-station use. If you have multiple
GX-6000 configurations, instead of having to reassign GAS 2 or GAS 3 every time
you test a different configuration like you would have to do if an SV-3 was not
installed, you can assign the different gases to GAS 4, GAS 5, or GAS 6.
The gas inlets can be assigned as desired. The table below provides
recommendations.
Table 10: Recommended Gas Cylinders and Gas Ports for
Single- and Multi-Station Use
Instrument Types
Recommended Calibration Gas
Cylinder and Gas Inlet Selection
Instrument 1
: 3-gas + low range PID
Instrument 2
: 3-gas + high range PID
Instrument 3
: 3-gas + NH3
GAS 1
: 3-gas mix with LEL/Oxy/
CO
GAS 2
: 10 ppm IBL
GAS 3
: 100 ppm IBL
GAS 4
: NH3
Instrument 1
: 3-gas + high range PID
Instrument 2
: 3-gas + NH3
Instrument 3
: 3-gas + SO2
GAS 1
: 3-gas mix with LEL/Oxy/
CO
GAS 2
: 100 ppm IBL
GAS 3
: NH3
GAS 4
: SO2
Instrument 1
: Standard 4-gas + low range PID
Instrument 2
: Standard 4-gas + high range PID
Instrument 3
: Standard 4-gas + high range PID
+ NH3
GAS 1
: 4-gas mix with LEL/Oxy/
H2S/CO
GAS 2
: 10 ppm IBL
GAS 3
: 100 ppm IBL
GAS 4
: NH3