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| NG C820 0 AN D PGC1000 US ER MAN UA L | 2101 510MNA H
17. Repeat for each sample stream.
18. After securing tubing, check for gas leaks.
4.5
Carrier and calibration system installation
The procedures in this section wire the Digital Inputs (DI) to the calibration and carrier gas regulator
assemblies. The examples show the DI1 used for the calibration gas and the DI2 for the carrier gas.
For ease in wiring, you may remove the modular terminal connector J2 from the terminal board.
4.5.1
Calibration/validation stream
On the analyzer feed-through assembly, one or two of the sample streams may be used for a
calibration gas input. It is recommended that a metal diaphragm regulator is set to 15 ±2 psig input.
shows the recommended calibration gas component concentrations for a standard BBK-BBF
8206 analyzer.
Table 4-2: Calibration gas blend recommended components
Component Name Abbreviation
Mol %
Component Name
Abbreviation
Mol %
Nitrogen
N2
2.500
Normal Butane
NC4
0.300
Methane
C1
89.570
Neo Pentane
Neo C5
0.100
Carbon Dioxide
CO2
1.000
Iso Pentane
IC5
0.100
Ethane
C2
5.000
Normal Pentane
NC5
0.100
Propane
C3
1.000
Hexanes and Heavier
C6+
0.030
Iso Butane
IC4
0.300
4.5.2
Cylinder rack installation on meter run
The carrier/calibration gas cylinder rack is used to hold the carrier and calibration gas cylinders on
installations not using an environmental enclosure. A gas regulator should be installed on each gas
cylinder (see
). These instructions are generalized. Contact the cylinder rack manufacturer
for more specifics.
To install the cylinder rack:
1.
Position the cylinder rack near the analyzer.
2.
Secure the rack to the pipe meter run with the provided mounting hardware.
3.
Install both the carrier and calibration gas cylinders in the rack.
4.
Secure both cylinders in the rack to prevent falling.
Figure 4-16: Carrier and calibration gas cylinders rack installation
4.5.3
Carrier gas regulator installation
The following instructions are valid for all installations. These instructions assume that the carrier gas
cylinder has been installed. This example uses the DI1 for wiring the carrier gas system.
Materials: