4.4 Bridge Voltage
??Turn the function switch to “TEST”- position. Instrument will perform an automatic selftest.
??Press “Cal” using the keyboard pin. The display will show “000” indicating the automatic zero adjust.
??When the zero adjust is finished, display will show “GCAL”.
??Press “Fct” three times. Display will show “UBr” . You can leave this routine by pressing “Fct” once and go back into the “GCAL” routine.
??Press “Cal” once. Display will indicate bridge voltage.
??Press “Fct” and you will go back into the alarm adjustment routine.
Note:
??In order to differentiate between measured values or adjustment values, the display shows additional arrows underneith the digits if you are in the service mode (see Chapter 5).
4.5Filter Replacement 4.5.1 Filter Cap
If the Compur Ex plus has been used extensively in dirty areas, the filter cap might be clogged. Please replace the filter cap in regular intervals.
??Make sure the Compur Ex plus is switched off. ??Lift the rubber ring around the filter cap.
??Turn the filter cap counter clockwise and pull it out.
??Insert the new filter cap and turn it clockwise until it snaps. ??Push back the rubber ring around the filter cap.
