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PMA 50 EX | 1.01.04
35
Electrical connections meas. cell
Heater element
Gas outlet measuring cell
Transmitter board
Gas inlet measuring cell
Temperature fuse (cut-off at 72 °C [161.6 °F])
Fastening screw for measuring cell
Temperature sensor
Figure 8
Transmitter unit
Unsolder the brown and yellow cable from the terminals
(see Figure 8) on the back side of the measuring cell;
do not overheat the terminals; mark the cables accordingly;
Disconnect the tubing for the sample gas outlet
and sample gas inlet
;
Loosen the fastening screw of the measuring cell
with a screw driver and pick carefully the cell;
Exchange only with measuring cells of the same type;
Turn the transmitter as shown in Figure 9 and loosen the fastening screw of the photocell
.
Install the measuring cell in reverse order; make sure the dumbbell is in the correct position!
In case there are minimally different positions of the dumpbells inside the measuring cells when mounting a
new cell, it is absolutely necessary to adjust the zero point mechanically.
Summary of Contents for 1803436
Page 41: ...www mc techgroup com PMA 50 EX 1 01 04 41 Figure 10 Circuit diagram front board PMA50 EX ...
Page 42: ...42 PMA 50 EX 1 01 04 www mc techgroup com Figure 11 Assembly front board PMA50 EX ...
Page 43: ...www mc techgroup com PMA 50 EX 1 01 04 43 Figure 12 Circuit diagram mains adapter PMA50 EX ...
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