Xylem wtw CN 800 DIN, Руководство по эксплуатации, Страница: 23 / 46

CN 800 Technical data
ba15356d04 12/2021
23
Technical data
Measuring ranges
Reproducibility
pH range
Temperature range
Resistance
Length
Diameter
Cable length
Plug DIN plug
– Conditioning time too short – Extend the conditioning time
– Standard solutions too old – Use new standard solutions
– Inner junctions encrusted – Leave the bridge electrolyte to react on
the inner junctions for some hours until
the crusts have dissolved.
– Electrode defective – Exchange the electrode
Cause Remedy
0.2 ... 260 mg/l CN
-
(recommended 0.2 ... 25 mg/l CN
-
)
8 x 10
-6
... 1 x 10
-2
mol/l CN
-
(recommended 8 x 10
-6
... 1 x 10
-3
mol/l
CN
-
)
± 2 %
0 ... 14 (Before measuring, adjust the pH value of the sample to
pH 10 to 14)
0 ... 80 °C (shortly up to 100 °C)
< 30 M
Ω
153 mm (including 33 mm connection head)
Shaft: 12 mm
Connection head: 16 mm
1 m