Hach LDO AQS sensors User Manual page 5

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
indicates that care must be taken to prevent damage with the equipment.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public
disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
Product overview
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. LDO sensor technology does not consume oxygen, and can measure
DO concentration in low or no-flow applications. Refer to
Figure 1 LDO sensor
1 Sensor cap
2 Temperature sensor
Product components
Make sure that all components have been received. Refer to
damaged, contact the manufacturer or a sales representative immediately.
D A N G E R
Figure 1.
3 1-inch NPT
Figure 2. If any items are missing or
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