Technical Data - VWR CO 11 Manual Del Usuario

CO 11
Disposal
What to do if...
Error symptom
No temperature or con-
ductivity display
Measurement delivers
implausible conductivity
values
Incorrect temperature
display

Technical data

General features
Dimensions
(in mm)
Weight
Materials
ba75841y04 05/2021
We recommend to dispose of the measuring cell as electronic waste.
Cause
– No connection between
measuring instrument and
conductivity measuring cell
– Cable defective
– Incorrect cell constant adjusted at
the measuring instrument
– Measuring range exceeded
– Contamination in the area of the
electrodes
– Electrodes damaged
– The temperature sensor was not
immersed deep enough in the
measuring solution
– Temperature sensor defective
Measuring principle
Cell constant
Temperature sensor
120,0
approx. 135 g
Shaft
Connection head
Conductivity electrodes
Thermistor enclosure
Remedy
– Connection between measuring
instrument and conductivity
measuring cell
– Check / correct the cell constant
– Make sure the correct sensor is
being used for the application
– Clean the conductivity measuring
cell (see section ).
– Return the sensor
– Observe the minimum immersion
depth
– Return the conductivity measuring
cell
2-electrodes measurement
-1
0.84 cm ±1.5 %
integrated NTC 30 (30 kat 25 °C / 77 °F)
162,5
15,3
21,7
Epoxy
POM
Graphite
Graphite
EN
English
17,5
5