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1. INTRODUCTION
This manual contains installation, operation and maintenance instructions for a-AB23PH
bench pH meter. Please read it completely before installation and operation.
1.1. Safety precautions
Definition of Signal Warnings and Symbols
Safety notes are marked with signal words and warning symbols. These show safety
issues and warnings. Ignoring the safety notes may lead to personal injury, damage to
the instrument, malfunctions and false results.
WARNING
For a hazardous situation with medium risk, possibly resulting in severe
injuries or death if not avoided.
CAUTION
For a hazardous situation with low risk, resulting in damage to the device
or the property or in loss of data, or minor or medium injuries if not
avoided.
ATTENTION For important information about the product. May lead to equipment
damage if not avoided.
NOTE
For useful information about the product.
Warning Symbols
General
hazard
Safety Precautions
CAUTION: Read all safety warnings before installing, making connections, or
servicing this equipment. Failure to comply with these warnings could result
in personal injury and/or property damage. Retain all instructions for future
reference.
Before connecting power, verify that the AC adapter's input voltage range
and plug type are compatible with the local AC mains power supply.
Do not position the equipment such that it is difficult to reach the power
connection.
Make sure that the power cord does not pose a potential obstacle or
tripping hazard.
The equipment is for indoor use only.
Do not operate the equipment in wet, hazardous or unstable
environments.
When using chemicals and solvents, comply with the instructions of the
chemical producer and the general lab safety rules.
Do not allow liquids to enter the equipment.
Disconnect the equipment from the power supply when cleaning.
Service should only be performed by authorized personnel.
Explosion
hazard
AB23PH Bench pH Meter
Electrical shock
hazard
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