Endress+Hauser StamoLys CA 71 HY, Руководство по эксплуатации

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Stamolys CA71HY Troubleshooting
Hauser 41
Measured values
inaccurate
Incorrect concentration
of standard Check the concentration in the laboratory. Adjust the standard accordingly ("PARAMETER ENTRY",
"Calibration solution") or replace the standard.
Reagents contaminated
or aged Simple check: Mix 5-10 ml of standard solution and 5 ml of reagent in a beaker. If it does not change color
after max. 10 min, replace the reagents.
Reagent blank value too
high After replacing the reagents, carry out an offset calibration and then a calibration (CONFIGURATION,
"Offset calibration")
Wrong dimension Check the setting in the CONFIGURATION menu, "Measuring unit" (e.g. ion instead of element).
Wrong cell Check the setting in the CONFIGURATION menu, "Photometer"
Sample suction time too
short Increase the suction time (CONFIGURATION, "Delay to sample")
Matrix effects
(substances that interfere
with the photometric
method) Detect interfering substances (see Technical Information, "Measuring principle"),
possibly use sample conditioning
Filter life too long Take a counter sample at the analyzer inlet and check the concentration in the laboratory. If there is no
deviation to the analyzer measured values, replace the ultrafiltration modules or reversible flow filters more
frequently.
System blocked or
contaminated Flush with 12.5% bleaching lye (monthly maintenance)
Dosing Replace pump hoses.
Cell dirty Flush with 12.5% bleaching lye first and then with 5% hydrochloric acid
Measured values
inaccurate Standard is dosed to the
sample Check the valves and valve settings. Replace valve hoses if necessary.
Counter sample in the
laboratory delivers
deviating measured
values Sample aging Shorten time between sampling and analysis.
Measured value transfer
defective
Wrong size for analog
output Check the setting (CONFIGURATION, "Analog output 1" or " 2").
Incorrect measuring
range Adjust measuring range (PARAMETER ENTRY, "Measuring range")
Background noise Check electrical cables for interference from strong sources of induction.
Analyzer will not switch
on
No power Check the electrical connection and ensure power supply.
Fuse Replace fuse F1 (slow-blow 0.5 A)
Analyzer is running but
display reading is garbled
or off Initialization failed Switch the analyzer off and after approx. 30 seconds back on.
Pumps fail to run
Leak See "Spillage error" error message
Leak sensor bypassed Interrupt the contact between the two leak sensors (terminals 67-66)
Fuse Check all fuses and replace if necessary.
Pump defective Service
Measurement does not
start Leak at photometer Service
"Measurement" display
flashes
Time of 1st
measurement not
reached The date must be between 01.01.1996 and the current date.
Interval not expired Change parameter setting.
Calibration does not start
Time of 1st calibration
not reached The date must be between 01.01.1996 and the current date.
Interval not expired or 0
h Change parameter setting.
Leak at photometer Service
Error Possible cause Tests and / or corrective measures