Removal Of The Measuring Cell - M&C PMA Series Instruction Manual

The preceding components necessary for the sample gas conditioning are to be maintained according to the
respective operating manuals.
The zero point and full scale calibration must be performed with the appropriate test gases according to the
instructions.
Recommended interval of calibration for standard applications: 1 x per week.
20.1

REMOVAL OF THE MEASURING CELL

For dismounting the measuring cell, the following procedure is recommended:
W A R N I N G !

Remove cross-head-screws of the housing (lid: 2; bottom: 2; front: 4; back: 4);

Remove lid;

Remove black isolation cap carefully from transmitter unit;
W A R N I N G !
W A R N I N G !

Remove the green 2-, 3- and 4-pole plug-in connections X2, X3, X4 from the power supply board;

Loosen the earth connection (green-yellow) of the transmitter unit;

Remove 18-pole flat ribbon cable;

Put the transmitter unit in a position as shown in figure 9 (18-pole plug must show to the right side).
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Dangerous voltage. before carrying out any maintenance or repair ac-
tivities, take the analyzer and all external switching circuits in connec-
tion with the analyzer off the mains!
Hot transmitter surface up to 55 °C. Touching may lead to burnings. Wear
safety gloves!
Strong magnetic field. Before dismounting the transmitter unit, remove all
sensible parts (e.g. wrist watch etc.)!
PMA30 | 1.01.03 31