Determining/Setting Up The Cell Constant [C]; Determining The Cell Constant (Calibrating) - wtw inoLab Cond Level 1 Operating Manual

Operation
Why determine/set
up the cell con-
stant?
Determining the cell
constant
(calibration in con-
trol standard)
22
4.3

Determining/setting up the cell constant [C]

Due to ageing, the cell constant slightly changes. As a re-
sult, an inexact measured value is displayed. Calibration de-
termines the current value of the cell constant and stores
this value in the instrument.
Thus, you should calibrate at regular intervals.
You can determine the cell constant of the conductivity mea-
suring cell in the range 0.450 ... 0.500 cm
-1
cm by calibrating in the control standard or set it up manu-
ally in the range 0.250... 2.500 cm
select the fixed cell constants 0.1 cm

4.3.1 Determining the cell constant (calibrating)

Determine the cell constant as follows:
c
1 Press the
on the display.
g
2 Press the
c
3 Press the
played.
-1
. Additionally, you can
key repeatedly until LF CELL appears
key.
key repeatedly until the following is dis-
-1
or 0.800 ... 1.200
-1 -1
or 0.01 cm .