Hach CLF10sc User Manual page 4

3.1 Safety information
The manufacturer is not responsible for any damages due to misapplication or misuse of this
product including, without limitation, direct, incidental and consequential damages, and disclaims
such damages to the full extent permitted under applicable law. The user is solely responsible to
identify critical application risks and install appropriate mechanisms to protect processes during a
possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this
equipment in any manner other than that specified in this manual.
3.2 Use of hazard information
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or
serious injury.
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death
or serious injury.
Indicates a potentially hazardous situation that may result in minor or moderate injury.
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that
requires special emphasis.
3.3 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 symbol, if noted on the instrument, references the instruction manual for operation
and/or safety information.
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.
3.4 Product overview
This product is primarily intended for use in municipal drinking-water applications. Wastewater and
industrial applications must be identified to be applicable by the manufacturer before installation.
The Reagentless Chlorine Analyzer monitors the concentration of free or total residual chlorine in
water, and is most reliable at residual chlorine concentrations higher than 0.1 ppm (mg/L). The
combination of a sc model controller with a three-electrode chlorine sensor, optional pH sensor and a
flow sensor give the best monitoring function. Both sensors read sample temperature. The pH sensor
transmits the temperature reading to the controller display. The chlorine sensor uses its temperature
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