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Idiomas disponibles
What to do if ...
Measured value
unstable
Slope too low
Measuring range
Reproducibility
pH range
Temperature range
Membrane
resistance
Length
Diameter
22
What to do if ...
Cause
– Inner junctions not
sufficiently wetted with
bridge electrolyte (Ca 800)
– Junctions encrusted
– Cable broken
Cause
– Conditioning time too short
– Standard solutions too old
– Junctions encrusted
– Electrode defective
Technical data
0.02 ... 40,000 mg/l Ca
± 4 %
2.5 ... 11
(see I
NTERFERENCES
0 ... 40 °C
1 to 4 MΩ
170 mm (including 50 mm connection head)
Shaft:
12 mm
Connection head
16 mm
Remedy
– Fill up bridge electrolyte until the inner
junctions are covered with bridge
electrolyte
– Leave the bridge electrolyte to react on
the junctions for some hours until the
crusts have dissolved.
– Exchange the electrode
Remedy
– Extend the conditioning time
– Use new standard solutions
– Leave the bridge electrolyte to react on
the junctions for some hours until the
crusts have dissolved.
– Exchange the electrode
2+
-7
(5 x 10
... 1 mol/L Ca
)
Ca 800
2+
)
ba15352d04
12/2021
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