Instruction Manual Mi 190 DO Bench Meter
1 0
1 0
1 0
1 0
1 0
• Press RANGE to change the reading from % to ppm and vice-versa.
For accurate Dissolved Oxygen measurements, a water movement of 0.3 m/s is required.
This is to ensure that the oxygen-depleted membrane surface is constantly replenished. A
moving stream will provide adequate circulation.
The use of a magnetic stirrer to ensure a certain fluid velocity is recommended.
TEMPERATURE MEASUREMENTS
The probe has a built-in temperature sensor.
The measured temperature is indicated on the secondary LCD as shown above.
Allow the probe to reach thermal equilibrium before taking any measurement. This can
take several minutes. The greater the difference between the temperature at which the
probe was stored and the temperature of the sample, the longer the time will be.
Note: If “----” is displayed, the D.O. probe is not properly connected or the temperature
is out of range. This also indicates the posibility of a broken probe cable.
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Press the arrow keys to change the displayed value.
Press the ACCEPT key to accept the value or the CAL key to escape.
Press the arrow keys to select the next/previous parameter.
Press the SETUP key to exit SETUP menu at any time.
The following table lists the SETUP parameters, their valid values range and the factory
settings (default):
Item
Description
Valid values
Default
SALt
Salinity Factor
0 to 40 g/l
0
ALt
Altitude Factor
0 to 4000 m step100 m
0
TIME
Time (hh:mm)
00:00 to 23:59
00:00
DATE
Date (MM.DD.YYYY)
01.01.2000-12.31.2099 01.01.2005
bEEP
Beep Status
ON/OFF
OFF
bAud
Baud Rate
600; 1200; 2400; 4800;9600
2400
In Id
Instrument ID
0000 to 9999
0000
tEMP
Temperature Unit
°C or °F
°C
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