Hach-Lange POLYMETRON 9500 Contacting Conductivity Sensors User Manual - Manual (Page 5)

This symbol, when noted on the product, indicates the presence of devices sensitive to electrostatic
discharge and indicates that care must be taken to prevent damage to them.
Electrical equipment marked with this symbol may not be disposed of in European public disposal
systems. In conformity with European local and national regulations, European electrical equipment
users must now return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
Note: For return for recycling, please contact the equipment producer or supplier for instructions on how to return
end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.
Products marked with this symbol indicates that the product contains toxic or hazardous substances
or elements. The number inside the symbol indicates the environmental protection use period in
years.
Product overview
These sensors are designed to work with a controller for data collection and operation. Multiple
controllers can be used.
Figure 1 Contacting conductivity (Kohlrausch) sensors
1 Model 8310 4 Model 8315 7 Model 8394
2 Model 8311 5 Model 8316
3 Model 8312 6 Model 8317
Installation
W A R N I N G
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the document.
Sensor mounting
W A R N I N G
Personal injury hazard. Always consider the temperature and pressure rating of the mounting hardware that is
used to install the sensor. The hardware material usually limits the temperature and pressure rating of the system.
In Figure 2 on page 6, Figure 3 on page 6 and Figure 4 on page 7 the annotations A, B and
C indicate:
• A: Ideal - perfect immersion of the electrode surfaces and ideal sample flow.
English 5