M&C TechGroup PMA 50 EEX Operator's manual - Manual (Page 30)

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Gas sampling and gas conditioning technology 9-3.15-ME
The preceding components necessary for the sample gas conditioning are to be maintained a c-
cording to the respective operating manuals.
The calibration of zero point and span value is to be effected with the corresponding test gases
according to instruction.
Recommended interval of calibration for standard applications: 1 x per week.
23.1 REMOVAL OF THE MEASURING CELL
Figure 6 shows the schematic internal construction of the analyser PMA 50 Ex.
1 Sample gas inlet 6 from 08.2009 the line-filter is dropped out
2 Sample gas outlet 7 Flexible tube
3 Electrical connections 8 Power supply and temperature board
4 Hex screws 9 Front controller board
5 Transmitter type 1.07.X. 10 Flow sensor, stainl. steel
Figure 6 Schematic view of the internal layout of the analyser