triOS Free Chlorine, Руководство по эксплуатации

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Us
e
Us
e
Calibr
ation
Calibr
ation
M
alfunc
tion and
M
ain
tenanc
e
M
alfunc
tion and
M
ain
tenanc
e
Comm-
issioning
Comm-
issioning
In
tr
oduc
tion
In
tr
oduc
tion
G
ener
al
Inf
or
ma
tion
G
ener
al
Inf
or
ma
tion
FA
Q
FA
Q
Technical
Da
ta
Technical
Da
ta
W
ar
ran
ty
W
ar
ran
ty
Cust
omer
ser
vic
e
Cust
omer ser
vic
e
Con
tac
t Con
tac
t
Key
w
or
d
Inde
x
Key
w
or
d
Inde
x
Ac
cessor
ies
Ac
cessor
ies
D01-905en201912 Manual eCHEM Free Chlorine
Free Chlorine //
Malfunction and Maintenance
6.3.1 General Troubleshooting
Fault Possible cause Action
Sensor cannot be calibrated / measured
value deviates from DPD measurement Gas bubbles in the electrolyte Unscrew the membrane cap and empty
the electrolyte.
Repeat commissioning.
Run-in time too short Repeat calibration after a few hours
Membrane cracked Replace membrane cap (see chapter
6.2.2)
Membrane cap damaged Replace membrane cap (see chapter
6.2.2)
Interfering substances in the water Examine water for interfering substan-
ces and remedy, consult the supplier if
necessary
Short-circuit / defect in the measuring
line Locate and eliminate short-circuit / de-
fect, replace measuring line if necessary
Distance between membrane and
electrode is too great Screw on the membrane cap complete-
ly as far as it will go
DPD chemicals too old Use new DPD chemicals and repeat
calibration
Deposits on the membrane Replace membrane cap (see chapter
6.2.2)
Gas bubbles on the outside of the
membrane Briefly increase the flow rate, check and
change the installation if necessary
Sensor defective Send in sensor to be checked / over-
hauled
Missing galvanic isolation Establish galvanic isolation.
Send in sensor to the supplier to be
checked / overhauled.
No electrolyte in the membrane cap Fill the membrane cap with electrolyte
(see chapter 6.2.1)
Chlorine content exceeds upper measu-
ring range limit Check system, remedy fault, repeat
calibration
Unstable measuring signal Membrane cracked Replace membrane cap (see chapter
6.2.2)
Bubbles in the electrolyte (especially
during operation under pressure) Empty the membrane cap and fill
with new electrolyte bubble free (see
chapter 6.2.1)
Gas bubbles on the outside of the
membrane Briefly increase the flow rate, check and
change the installation if necessary
Pressure fluctuations in the measuring
medium Check installation type and change if
necessary
Reference electrode exhausted and/or
contaminated Send in sensor to be overhauled
Missing galvanic isolation Establish galvanic isolation.
Send in sensor to the supplier to be
checked / overhauled.