wtw inoLab 740, Руководство по эксплуатации

Страница: 150 / 274

BOD
150
Preparatory
activities
Preparatory activities before the measurement:
Note
An incorrect calibration of the measuring system with D. O.
probes will cause incorrect measured values. Perform a
calibration at regular time intervals (see section 8.2).
Note
The drift control (AutoRead) function corresponds to the
AutoRead function in section 8.3.2. BOD measurements are
automatic AutoRead measurements.
9.1.1 Operation with the StirrOx G oxygen sensor
Use the key on the StirrOx G to switch on the stirrer and start
a measurement with AutoRead at the same time.
This enables the automation of the BOD measurements.
When the stirrer is switched on,
3
appears on the
display.
9.1.2 Operation with a barcode reader
Using a barcode reader makes it possible to fill out name
fields on the display automatically using the barcode reader.
In addition, it is possible to start a measurement
automatically after reading in a name field with the barcode
by activating
Scanner Automatic .
1 Prepare blank value solutions and sample dilutions.
2 Calibrate or check the measuring system with the
probe (see section 8.2).
1 Switch to the Menu mode.
2 Use
46
to select the main Meas menu.
3 Select the BOD menu item with
82
.