Precautionary Labels - Hach POLYMETRON 8811 Manuel D'utilisation De Base

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 product. Personal injury or damage to the product could
occur if not observed. A symbol on the instrument is referenced in the manual with a precautionary
statement.
This symbol, when noted on a product, indicates a potential hazard which could cause serious
personal injury and/or death. The user should reference this instruction manual for operation and/or
safety information.
This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock
and/or electrocution exists and indicates that only individuals qualified to work with hazardous
voltages should open the enclosure or remove the barrier.
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.
This symbol, when noted on a product, indicates the instrument is connected to alternate current.
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.
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
Introduction
The 8811 sequencer facilitates the transformation of a one channel analyzer into a multi channel
analyzer:
• Up to 6 channels with one measurement per channel on the analyzer
• Up to 3 channels with 2 measurements per channel on the analyzer (e.g. 8810 M and P alkalinity)
The 8811 ensures the following functions:
• Programmable cycle time between channels
• Programmable sequencing of channels
• Individual 0/4 - 20 mA output per measurement and per channel
• One alarm relay per channel for low/high concentration
• Two additional alarm relays for warning and system alarms (e.g. no sample, no reagent, etc.)
• If no sample is available on one channel, the sequencer switches automatically to the next one in
the programmed sequence
This functionality is not available if coupled with an 8810-ISE analyzer
• 2 end-point titration for the 8810 analyzer (e.g. free and total alkalinity, free and total acidity)
• Remotely activate or deactivate analysis per channel
• Auto Start/Standby relay as a standard item
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