Burkert 8232 - If There Is a Problem

9.4.2. If there is a problem
Problem Possible cause Recommended actions
Slope calibration
cannot be done
because the
measuring value
deviates from the
DPD-measurement
Polarization time too short
→ For the polarization time duration, see chap. 8.
→ Repeat calibration when the polarization time has elapsed.
Membrane cracked
→ Replace the membrane cap. See chap. 9.3.3.
Membrane cap damaged
→ Replace the membrane cap. See chap. 9.3.3.
Deposits on the membrane
→ Replace the membrane cap. See chap. 9.3.3.
Interfering substances in the measuring
water
→ Examine the measuring water for interfering substances.
→ If necessary, contact Bürkert.
There is a short-circuit or the con-
nection cables are defective.
→ Repair the short-circuit.
→ If necessary, change the connection cables.
Shaft is not tightly fastened to the
membrane cap
→ Screw the shaft until it hits the membrane cap.
Gas bubbles on the membrane → Increase the flow rate temporarily.
→ If necessary check the installation and correct it.
Chlorine concentration exceeds the
upper limit of the measuring range
→ Bring the chlorine concentration in the authorized range.
No electrolyte in the membrane cap
→ See chap. 7.3 to fill again the membrane cap with electrolyte.
Air is between the internal holder /
membrane cap / measuring electrode
→ Remove the internal holder from the membrane cap and fill it again with
the electrolyte. See chap. 7.3.
Sensor is defective → Send the sensor back to Bürkert.
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Maintenance and troubleshooting
Type 8232
english