Introduction; Definition Of Signal Warnings And Symbols - OHAUS ST400 Manual De Instrucciones

ST400 & ST400M Portable Meter
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INTRODUCTION

Thank you for choosing OHAUS.
Please read the manual completely before using the ST400 portable pH and ST400M portable pH
& conductivity meter to avoid incorrect operation.
ST400 series have an excellent performance and are designed with many useful features. Ohaus
also offers other accessories such as electrodes for different applications as well as buffer
solutions.
ST400 & ST400M have many unique designs: including IP67 waterproof and dustproof design,
rechargeable lithium battery; large LCD display, data storage, and indication of electrode status.
You will find more practical features of the ST400 & ST400M in use. Some of these features
include:
• pH and conductivity* measurements with 1000 sets of data storage;
• Dot matrix LCD display, showing a clear reading;
• Multiple sets of pH buffer groups and multiple conductivity standards*, adaptable to your
different needs;
• Work with Ohaus IP67 pH electrode and conductivity electrode*, truly waterproof and suitable for
harsh environments.
* Only applies to ST400M.
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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.
Signal Words
WARNING
CAUTION
Attention
Note
Warning Symbols
General hazard
Explosion hazard
Corrosive hazard
~
Alternating current
Direct current
For a hazardous situation with medium risk, possibly resulting in
injuries or death if not avoided.
For a hazardous situation with low risk, resulting in damage to the
device or the property or in loss of data, or injuries if not avoided.
For important information about the product.
For useful information about the product
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