29
"OVEr"
0.0 ~ 60.0°C
pH-Cal
pH>16.00.
[Use a new buffer solution.]
[Replace the electrode.]
"OVEr"
0.0 ~ 60.0°C
a.pH-Cal-STAND
buffer 7.00pH
b.pH-Cal-STAND
buffer 6.86 pH
c. pH-Cal-SLOPE
a. Offset>100mV
b. Offset>108.3mV
c. Slope>ideal mV by 30%
[Use a new buffer solution.]
[Replace electrode.]
"Undr" -10.0~
120.0°C
pH pH<-2.00
[Recalibrate.]
"Undr"
0.0 ~ 60.0°C
a.pH-Cal-STAND
buffer 7.00pH
b.pH-Cal-STAND
buffer 6.86 pH
c.pH-Cal-SLOPE
a. Offset <-100mV
b.Offset < -91.7 mV
c. Slope<ideal slope by 30%
[Use a new buffer solution.]
[Replace electrode.]
"OVEr" don’t
care ORP
(ABS
or
REL)
a. ORP ABS display > +2500 mV
[Bring solution to a lower ORP
reading]
MAJOR
LCD
display
MINOR
LCD
display
DISPLAY
unit
Possible cause(s)
[Action(s)]
"Undr" don’t
care ORP
(ABS
or
REL)
a. ORP ABS display < -2500 mV
[Bring solution to a higher ORP
reading]
don’t care
“OVEr”
a. Temperature > 120.0°C.
[Bring solution to a lower
temperature.]
[Replace temperature probe.]
b. No temperature sensor.
[Use a temperature probe.]
don’t care
“Undr”
Temperature < -10.0°C.
[Bring buffer/solution to a
higher temperature.]
Summary of Contents for 6311
Page 34: ...34 B ABSOLUTE mV...
Page 35: ...35...
