Bediener-Hinweise
E 10
E 70
E 71
Recommended calibration value
Chloride:
between 10 and 20 mg/l Cl
–
Technical changes without notice
Printed in Germany 05/00
Calibration factor “out of range”
Factory calibration not OK / deleted
User calibration not OK / deleted
The unit can be reset to delivery condition (factory
calibration) as follows:
Press MODE and ZERO/TEST together and
hold
depressed .
Switch the unit on using the ON/OFF key. Release MODE
and ZERO/TEST keys after approx. 1 second.
The following messages appear in the display in
alternating mode:
The unit is in delivery condition.
(SEL stands for Select)
or:
The unit operates with a calibration performed by the
user. (If the user calibration is to be retained, switch the
unit off using the ON/OFF key.)
Factory calibration is activated by pressing the MODE
key. The following messages appear in alternating mode
in the display:
Switch the unit off using the ON/OFF key.
User calibration
: cAL
Factory calibration
: CAL
Zero
Test
Mode
On
Off
CAL
SEL
SEL
CAL
Mode
On
Off
cAL
SEL
Calibration mode
On
Off
Mode
CAL
r1
CAL
R E S U L T + x
R E S U L T + x
Mode
Zero
Test
0.0.0
Zero
Test
R E S U L T
R E S U L T
CAL
Zero
Test
On
Off
: :
Note
CAL
cAL
M E T H O D
M E T H O D
M E T H O D
M E T H O D
CAL
Press MODE key and keep it depressed .
Switch unit on using ON/OFF key.
Release MODE key after approx. 1 second.
The display shows the following in alternating mode:
Perform zero calibration (see "Operation").
Press the ZERO/TEST key.
The method symbol flashes for approx. 3 seconds.
The display shows the following in alternating mode:
Place the calibration standard to be used in the sample
chamber with the
∆
and
∇
marks aligned.
Press the ZERO/TEST key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display, alternating with CAL.
If the result displayed corresponds with the value of the
calibration standard (within the tolerance quoted), exit
calibration mode by pressing the ON/OFF key.
Otherwise, pressing the MODE key once increases the
displayed value by 1 digit.
Pressing the ZERO/TEST key once decreases the
displayed value by 1 digit.
Pressing the relevant key until the displayed value equals
the value of the calibration standard.
By pressing the ON/OFF key, the new correction factor
is calculated and stored in the user calibration software.
Confirmation of calibration (3 seconds).
It is not necessary to make a calibration of the r2-range as the
software refer to the calibration of the r1-range.
Factory calibration active.
Calibration has been set by the user.
Correct filling of the vial
correct
wrong
10 ml
10 ml
Camlab Water CW2050
Chloride Colorimeter
Reference CW/20.71.00
Camlab Limited , Camlab House, Norman Way, Over
Cambridge CB4 5WE
Tel: 01954 233110 • Fax: 01954 233101
www.camlab.co.uk
camlab
Choice, Service and Trust
Technical changes may occur without notice
Mode
Zero
Test
Zero
Test
Zero
Test
Mode
Mode
Zero
Test
Mode
Camlab CW2050 Chloride 2/5/06 3:21 pm Page 2
