Hach-Lange LDO Sensor - Manual (Page 5)

N O T I C E
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument
could occur if not observed. A symbol on the instrument is referenced in the manual with a
precautionary statement.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential
injury. If on the instrument, refer to the instruction manual for operation or safety information.
This symbol indicates the presence of a light source that may have the potential to cause minor eye
injury. Obey all messages that follow this symbol to avoid potential eye injury.
This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and
indicated that care must be taken to prevent damage with the equipment.
Electrical equipment marked with this symbol may not be disposed of in European public disposal
systems after 12 August of 2005. In conformity with European local and national regulations (EU
Directive 2002/98/EC), European electrical equipment users must now return old or end-of-life
equipment to the Producer 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 auxillary items for proper disposal.
Product overview
D A N G E R
Chemical or biological hazards. If this instrument is used to monitor a treatment process and/or
chemical feed system for which there are regulatory limits and monitoring requirements related to
public health, public safety, food or beverage manufacture or processing, it is the responsibility of the
user of this instrument to know and abide by any applicable regulation and to have sufficient and
appropriate mechanisms in place for compliance with applicable regulations in the event of malfunction
of the instrument.
This sensor is designed to work with a controller for data collection and operation. The sensor can be
used with several controllers. Refer to the controller-specific user manual for more information.
The primary applications for this sensor are municipal and industrial wastewater applications. LDO
sensor technology does not consume oxygen, and can measure DO concentration in low or no-flow
applications. Refer to
Figure 1 .
English 5