wtw MultiLab P5, Operation Manual

Page: 141 / 251

Oxygen measurement Oxygen measurement
140
BA61101/08.00/IWa/MLP5-E2 BA61101/08.00/IWa/MLP5-E2
141
Determination of oxygen consumption rate
acc. to DIN 38414 part 6
l
Storage of the single test data in intervals of 10 seconds.
l
Selection of the range with linear oxygen reduction
≥
1 minute.
l
Regular termination when linearity is reached.
l
Termination after 10 minutes at the latest.
l
Termination in case of measured values < 1 mg/L
Ãmeth.
Âmenu
ÀCal
ÁOº m¥/L 25.4°C
AR
Method oxygen
measurement.
BOD5
Âmeasure
cons.
¡Oº
Method change.
Oº
Âmenu
BOD
¡cons.
Select oxygen
consumption rate
Immerse probe into sample solution!
7,92
Oº m¥/L 22.1°C
AR
cons.
Start measurement of the
consumption rate.
Wait for
result.
7,53
Oº m¥/L 22.2°C
cons.
AR
Display of the current
oxygen concentration and
the measured temperature.
Âmeth.
2.3 m¥/L/min
22.2°C
Oº-rate:
Display of the calculated
oxygen consumption rate
and the measured
temperature.
Re-measurement:
BOD5
Âmeasure
Oº-cons.
¡Oº
Method change.
7,92
Oºm¥/L 22.1°C
AR
Âcons.
Start measurement.
Documentation: refer to chapter documentation.