wtw MultiLab P5, Operation Manual

Page: 208 / 251

Maintenance Maintenance
208
BA61101/08.00/Pla/MLP5-E2 BA61101/08.00/Pla/MLP5-E2
209
Performance of instrument zero adjustment
INSTRUMENT ZERO ADJUSTMENT ONLY AFTER
CHANGING LAMP or FILTER, or AFTER
RECEIVING ERROR MESSAGE "ERROR 1"!
In delivery condition all zero adjustments of the
instrument have been carried out carefully and stored.
For MEASUREMENT in practice NO ZERO
ADJUSTMENT required!
The values of the zero adjustments remain stored
until the next adjustment.
The instrument doesn't recognize a wrong zero
adjustment ! Zero adjustment should be carried out
by skilled persons only.
Perform zero adjustment of the instrument with
mains power supply only!
Connect line adaptor (see
chapter mains power
supply).
+
Switch on instrument and
simultaneously press
À
.
Release
À
.
À
Lamp
: Zero adjust after
changing the lamp.
l
= 445 nm, filter pos. 1.
Insert vial/cuvette containing distilled water (clean,
not scratched!).
Attend to minimum filling capacity (s.b.)!
Start zero adjustment .
Wait Zero adjustment is finished.
The zero adjustment after changing the lamp of the MultiLab P 5
must be carried out separately for all used vial/cuvette types and
filter positions.
Attend to the below mentioned min. filling capacity for each
vial/cuvette type for an orderly zero adjustment !
Cuvette Min.
filling capacity
[ml]
Min.
filling height
[mm]
l
14 mm vial 2.6 ml
20 mm
¨
10 mm rectangular cuvette 2.0 ml
20 mm
¨
20 mm rectangular cuvette 4.0 ml
20 mm
¨
50 mm rectangular cuvette 10 ml
20 mm