Yokogawa DO30G Dissolved Oxygen Sensor - Manual (Page 8)

<1. General>
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IM 12J5B3-01E
1. General
1.1 Features
• The sensor maintains stable characteristics over a prolonged period.
It stabilizes in a initial time for electrolysis of approximately a half a day.
The sensor has a structure less susceptible to the effects of deterioration in an electrolyte or
contamination of the permeable membrane. Consequently, you can make precise measure-
ments in a variety of processes.
• You can choose the desired measurement point according to the nature of the solu-
tion being measured.
You can submerse the DO30G Dissolved Oxygen Sensor to a depth of 3 m and then put it in
regular use (the sensor can withstand a pressure of up to 100 kPa). The sensor can be as-
sembled into a immersion type holder or a floating ball holder. The sensor, when assembled
in the immersion type holder, allows automatic cleaning of the sensor with jet-sprayed water
or air at regular intervals.
• The sensor is easy to service and very economical.
Dissolved oxygen sensors usually deteriorate with time and ultimately come to the end of
their service life. For the DO30G Dissolved Oxygen Sensor, only those parts whose service
lives are relatively short, such as the membrane, may be replaced. Thus, running costs can
be reduced. In addition, servicing and maintaining the sensor requires no special skills and
is done quickly.
F01.ai
Sensor cable
Sensor unit
Permeable-membrane
assembly
Pin-type crimping
terminals
Fork-type crimping
terminals
M4 ring-type crimping
terminals
Figure 1.1 External View of the DO30G Dissolved Oxygen Sensor
Note: The crimping terminals used on the sensor cables are either pin-type, M4 ring-type or fork-type depending on specifications.
4th Edition : Apr 05,2011
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