Extended diagnostic functions
72 - EN
FEX300, FEX500
CI/FEX300/FEX500-EN
8.3.2 Limit values for the electrode deposits
Electrode deposit monitoring is switched off (factory default). Monitoring can be switched on in
the
"Diagnostics / Diagnosis Control / Coating Detector"
menu.
Parameter
Factory setting
Coating QE Min Alarm
0 ohms
Coating QE Max Alarm
100.000 ohms
Recommended settings in the "Diagnostics / Diagnostic Functions / Electrode Deposits"
menu
•
Coating QE Min Alarm = 0.5 x Coating Value QE
•
Coating QE Max Alarm = 2.0 x Coating Value QE
Important (Note)
The deposit value QE is the mean value of Startup Fingerprint QE1 and QE2. The value is
determined using the following formula:
QE = (Startup Fingerprint QE1 + Startup Fingerprint QE2) / 2
8.3.3 Limit values for the electrode impedance
Electrode impedance monitoring is switched off (factory default). Monitoring can be switched on
in the
"Diagnostics / Diagnosis Control / Cond. Detection"
menu.
Parameter
Factory setting
Elec.Imp.Min Alarm
0 ohms
Elec.Imp.Max Alarm
20.000 ohms
The limit values for parameters
"Elec.Imp.Min Alarm"
and
"Elec.Imp.Max Alarm"
depend on
the fluid conductivity and must be determined on site.
Recommended settings
•
Elec.Imp.Min Alarm = 0.2 x average impedance value
•
Elec.Imp.Max Alarm = 3.0 x average impedance value
Important (Note)
The average impedance value is the value of Startup Fingerprint "Elec. Imp. E1-GND" and
"Elec. Imp. E2-GND". The value is determined using the following formula:
Average impedance value = (Startup Fingerprint "Elec. Imp. E1-GND" + Startup Fingerprint
"Elec. Imp. E2-GND") / 2
8.3.4 Recommended settings for the Trend Logger
"Diagnostics / Trend" menu
•
Logtime Interval = 43,200 minutes