Operating Instructions OXY5500 Gas Analyzer
42 Endress+Hauser
5.12.12 Connecting the gas inlet for analyzers without the sample conditioning system
1. Connect the three-way valve to a port connector.
2. Connect the reducers to either side of the three-way valve.
3. Connect to the gas cylinder to the reducer on either side of the three-way valve using 3 mm (1/8 in.) stainless
steel tubing.
4. Connect the OXY5500 probe to the port connector.
Figure 50. Connection locations
5.12.13 Connecting the gas inlet for analyzers with Endress+Hauser’s sample conditioning
system (SCS)
1. Attach the Port Connector to the Endress+Hauser analyzer SCS enclosure.
2. Connect the three-way valve to the port connector.
3. Connect the reducers to either side of the three-way valve.
4. Connect to the gas cylinder to the reducer on either side of the three-way valve using 3 mm (1/8 in.) stainless
steel tubing.
Figure 51. Gas inlet connections with SCS
5.13 Purging the cylinder pressure regulators and analyzer
1. Install a pressure regulator to the nitrogen (N2) zero gas cylinder.
2. Install a pressure regulator to the O2 calibration gas cylinder.
3. Purge the pressure regulator starting with the O2 cylinder, then the N2 cylinder. Allow the gas to flow into the
analyzer to purge also.
4. Close the pressure regulator outlet valve and open the cylinder valve. This will pressurize the primary and
secondary side of the two-stage regulator.
5. Adjust the regulation pressure to 200 KPaG (30 PSIG).
Three-Way Valve
Port Connector
OXY5500 Probe
Reducers
To Gas Cylinder
To Gas Cylinder
Port Connector
Three-Way Valve
Reducers
To Gas Cylinder
To Gas Cylinder
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