Submersible Systems; Changing The Temperature Compensator; Floating Ball And Dip Systems; Submersible System - ABB 9408 Series Instruction Manual

...5 MAINTENANCE

5.2.3 Submersible Systems

Submersibles are sealed systems and apart from sensor
capsule replacement, no other maintenance is possible.

5.3 Changing the Temperature Compensator

5.3.1 Floating Ball and Dip Systems

This item is an integral part of the sensor body and is, therefore,
not maintainable. Change the complete sensor body as
described in Section 5.2.

5.3.2 Submersible System

The submersible system includes a sealed unit housing the
combined temperature compensator/oxygen sensor body
and is not accessible for maintenance purposes except for
the replacement of the sensor capsule – see Section 5.1.3
Dip Systems.
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6 SPECIFICATION

Sensor Type: .................................. 8012-170 sensor capsule.
Response:
Typically 20 seconds for 90% of a step change of oxygen
concentration at 20°C.
Temperature Compensation:
Automatic correction by means of integral Pt 100 resistance
thermometer.
Accuracy:
±0.2 mg l or ±2% saturation within ±10°C of the calibration
-1
temperature in the range 0 to 35°C.
Operating Temperature Range:
Operating Pressure: ..................... Atmospheric
Dimensions:
Floating Ball
Ball diameter: ............................ 203 mm
Boom, outside diameter: .......... Metric - 50 mm
Boom length
Assembled ................................ 3 metres
Kit .............................................. 3 metres, user supplied
Dip
Dip Tubes:
Assembled (metric) ................... 1,2 or 3 metre options
Kit (Imperial) .............................. user supplied
Submersible
Diameter ......................................... 40 mm
Length
Cable length ................................... 10 m
Materials of Construction:
Boom: ............................................. ABS
Sensor body: .................................. ABS
Flotation ball: .................................. Polypropylene
Tube on dip system ........................ Polypropylene
Body of submersible system .......... Polypropylene
Bracket metalwork ......................... Stainless steel
Extra Connection Cable:
Part No.: ......................................... 0233-828
Maximum distance: ........................ 100 metres (328 feet)
0 to 40°C
Imperial - 1 / in (48 mm
7
8
approximately)
40 mm outside diameter
1.9 in outside diameter
Approximately 265 mm
(335 mm with water wash)