Burkert 8232 - Checking the Signal; Additional Checks

7. Read the value displayed by the remote controller type 8619.
- If the displayed value approaches
0 V for the "trace" chlorine sensor (order code 565164)
or
4 mA for the chlorine sensors (order codes 568524
1)
or
568523
2)
,
the sensor is correctly operating.
Check the signal. See chap. 9.4.6.
- If the displayed value significantly deviates from either
0 V ("trace" chlorine sensor)
or
4 mA (chlorine sensor
1)2)
),
do maintenance operations as described in chap. 9.3 and
check the zero point again.
8. If, even after maintenance operations, the displayed value does
not approach
0 V ("trace" chlorine sensor)
or
4 mA (chlorine sensor
1)2)
),
send the sensor back to Bürkert.
1) or other chlorine sensor for operation at constant pH
2) or other chlorine sensor having a reduced pH-dependency
9.4.6. Checking the signal
If the sensor correctly measures the zero point (see chap. 9.4.4 and
9.4.5), do the following to check the signal:
1. Add some chlorine to the beaker filled with clean tap water from
section "Zero point check".
2. Stir continuously using the sensor still connected to the remote
controller type 8619) for at least 5 min.
3. If the sensor signal increases, the sensor is working correctly.
Do the additional checks described in chap. 9.4.7.
4. If the sensor does not react to the chlorine, do maintenance
operations as described in chap. 9.2 and do a signal check again.
5. If the sensor still does not react to the chlorine, send the sensor
back to Bürkert.
9.4.7. Additional checks
If the sensor cannot be calibrated after the checks described in
chap. 9.4.4 to 9.4.6 have been made, the cause may be in the process.
Do the following checks:
→ check the suitability of the sensor for the process;
→ check the flow;
→ check the pH-value of the measuring water;
→ check the temperature of the measuring water;
→ make sure the pressure of the measuring water is constant and
within the allowed range of the used sensor;
→ check the connection cables;
→ make sure the polarization time has been done before the slope
calibration;
→ check the concentration of disinfectant in the measuring water;
→ check the dosing unit, if any;
→ check the concentration of the disinfectant in the dosing tank.
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Maintenance and troubleshooting
Type 8232
english