Figure 8 Transmitter Unit - M&C PMA Series Instruction Manual


Electrical connections meas. cell

Gas outlet measuring cell

Gas inlet measuring cell

Fastening screw for measuring cell
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.
www.mc-techgroup.com

Heater element

Transmitter board

Temperature fuse (cut-off at 72 °C [161.6 °F])

Temperature sensor
PMA 50 EX | 1.01.04 35