Limit Values For The Electrode Deposits; Limit Values For The Electrode Impedance; Recommended Settings For The Trend Logger - ABB FEX300 Operating Instruction
Electromagnetic flowmeter
processmaster, hygienicmaster
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Also See for FEX300:
- Original instruction (48 pages) ,
- Commissioning instruction (80 pages)
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Extended diagnostic functions
8.3.2
Limit values for the electrode deposits
"Diagnostics / Diagnosis Control / Coating Detector" menu
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Important (Notice)
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
"Diagnostics / Diagnosis Control / Cond. Detection" menu
The limit values "Elec. Imp Min Alarm" and "Elec. Imp Max Alarm" depend on the fluid
conductivity and must be determined on site.
8.3.4
Recommended settings for the Trend Logger
"Diagnostics / Trend" menu
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Deposits QE min alarm = 0.5 x deposit value QE
Deposits QE max alarm = 2.0 x deposit value QE
Cycle time = 43,200 minutes
FEX300, FEX500
OI/FEX300/FEX500-EN
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