Introduction; Safety Information; Intended Use - OHAUS Guardian 5000 Serie Installations-, Betriebs- Und Wartungsanweisungen

EN-2

1. INTRODUCTION

This manual contains installation, operation and maintenance instructions for the Ohaus Guardian 5000 Series.
Please read the manual completely before using.

1.1. Safety Information

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
WARNING! DO NOT use the Hotplate-Stirrer / Hotplate / Stirrer in explosive atmospheres or with
materials that could cause a hazardous environment from processing. Keep in mind the material flash
point relative to the target temperature that has been set. Also, the user should be aware that the
protection provided by the equipment may be impaired if used with accessories not provided by the
manufacturer.
Always operate unit on a level surface for best performance and maximum safety.
DO NOT lift unit by the top plate.
CAUTION! To avoid electrical shock, completely cut off power to the unit by disconnecting the power
cord from the wall outlet. Disconnect unit from the power supply prior to maintenance and servicing.
Spills should be removed promptly after the unit has cooled down. DO NOT immerse the unit for
cleaning. Alkalis spills, hydrofluoric acid or phosphoric acid spills may damage the unit and lead to
thermal failure.
CAUTION! The top plate can reach 500°C; DO NOT touch the heated surface. Use caution at all times.
Keep the unit away from explosive vapors and clear of papers, drapery, and other flammable materials.
Keep the power cord away from the heater plate.
CAUTION! The rear panel of the 10x10-120V unit runs hot to the touch. Avoid contact during operation.
Allow unit to cool before touching the rear panel.
DO NOT operate the unit at high temperatures without a vessel/sample on the top plate.
DO NOT operate the unit if it shows sign of electrical or mechanical damage.
WARNING! Units are NOT explosion proof. Use caution when heating volatile materials.
Earth Ground – Protective Conductor Terminal. Protective earthing of the equipment is achieved via
connection of the provided power cord to a compatible grounded power outlet.
Alternating Current

1.2. Intended Use

The Ohaus Hotplate-Stirrer / Hotplate / Stirrer are intended for general laboratory use. Safety cannot be
guaranteed if used outside of the intended use.
Caution, hot
surface
Electrical shock
hazard
Guardian 5000 Series