Burkert Type 8619 User Manual download pdf (Page 100)

Adjustment and commissioning

8.12.4. Monitoring the pH or redox values

This function is used to define the behaviour of the device if problems arise on the pH probe (glass electrode

and/or reference electrode) or the redox probe (reference electrode only).

Refer to chap. 8.9 to access the Diagnostics menu.

Diagnostics Glass electrodeMx:pH/ORP

Impedance:

Status: on/off

READING

Warning high: ENTERING

Warning low: ENTERING

Error high: ENTERING

Error low: ENTERING

Temp. depend. ENTERING

Ref. electrode

Impedance:

Status: on/off

READING

Warning high: ENTERING

Warning low: ENTERING

Error high: ENTERING

Error low: ENTERING

A malfunction in your process or on the measurement probe may be revealed by too low or too high value of the

impedance.

To be warned when the impedance measurement is out of range:

→ activate monitoring of fluid impedance in the "Status" function, and then

→ set an impedance range outside of which the multiCELL generates a "warning" event and displays the icons

and ;

→ set an impedance range outside of which the multiCELL generates an "error" event and displays the icons

and

When a "warning" or "error" event is generated by the multiCELL:

→ go into the "Information" menu to read the cause of generation of this event;

→ and/or read the measured impedance value;

→ if necessary, clean the probe and/or recalibrate the measurement sensor;

→ if necessary, check the process.

• The "warning" event may also be associated with one and/or other digital outputs. See chap. 8.10.22.

• A current of 22 mA may be emitted on one and/or other of the current outputs when an "error" event related

to either the monitoring of the fluid pH, redox, conductivity or temperature values or the monitoring of an

analogue input is generated. See chap. 8.10.21 to activate the mode.

• See also "If you encounter problems", chap. 9.3

STATUS: Choose to activate or deactivate monitoring of the impedance of the electrode selected.

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