Endress+Hauser OXY5500 - Page 40

Operating Instructions OXY5500 Gas Analyzer
40 Endress+Hauser
5.12.8 Setting calibration temperature
Use the following instructions to program the analyzer for the correct calibration temperature. Refer to Figure 48.
Figure 48. Calibration temperature screen
• T0: Temperature at the first calibration point.
o Select Auto to measure the temperature at the first calibration point with the RTD probe (Pt100 temperature
sensor).
o Select Manual if the first calibration point is known and remains constant through the calibration process.
Temperature values can be input in °C, °F, or K. Switch to the desired temperature unit and change the
temperature value in the input field.
• T2nd: Temperature at the second calibration point.
o Select Auto at the first calibration point for automatic temperature measurement.
o Select Manual to insert the changes to the calibration temperature manually.
To proceed with the calibration, click Next at the top right of the screen followed by OK.
Before starting the measurement, the OXY5500 must be calibrated. Refer to Calibrating the analyzer → .
5.12.9 Calibrating the analyzer
Complete the calibration procedures in this section before starting the measurement. First, refer to the required
equipment and materials list in Table 11. Figure 49 shows an illustration of the components to be used for the
cylinder regulator purge process.
5.12.10 Equipment and materials
Refer to Table 11 for a list of the materials and other equipment recommended for best results in the calibration
process. Component locations are shown in Figure 49, Figure 50, and Figure 51.
Material/Equipment Specifications Vendor; P/N (if available) Notes
Nitrogen gas (Cal 0)
6.0 Research grade
(99.9999%)
Airgas, Inc.; P/N NI ISP 300, or
equivalent
To be used for measurement ranges 0
to 100 ppmv and lower. Can also be
used for OP-6 or OP-3 probe.
Nitrogen gas (Cal 0)
5.0 High purity grade
(99.999%)
–
Use for calibration ranges greater than
100 ppmv. Can be used for OP-6, OP-3,
or OP-9 probe, or for OP-9 probe with
O2 concentrations >100 ppm
200 ppm O2 in N2 gas
(Cal 2nd)
200 ppm oxygen in
nitrogen
Airgas, Inc.; P/N X02NI99P15A0122,
or equivalent
To be used with probe OP-9
2% O2 in N2 gas (Cal
2nd)
2% oxygen in nitrogen Airgas, Inc.; P/N X02NI98C15A0614,
or equivalent
To be used with probe OP-6
21% O2 in N2 gas (Cal
2nd)
20 to 21% oxygen from
ambient air
N/A To be used with probe OP-3