OHAUS AS20 Bedienungsanleitung

AS20 Compact Stirrer

Instruction Manual

Agitador Compacto AS20

Manual de instrucciones

Agitateur compact AS20

Manuel d’instructions

AS20 便携式搅拌器

使用说明书

AS20 Compact Stirrer EN-1 
 
 
Table of Contents 
INTRODUCTION .......................................................................................................... 2 
1. SAFETY PRECAUTIONS .............................................................................................................. 2 
2. INTENDED USE ....................................................................................................................... 3 
3. PACKAGE CONTENTS ............................................................................................................... 3 
4. CONTROL PANEL..................................................................................................................... 4 
OPERATION ................................................................................................................ 5 
1 CONNECTION......................................................................................................................... 5 
2 OPERATION........................................................................................................................... 5 
MAINTENANCE ........................................................................................................... 6 
1 TROUBLESHOOTING................................................................................................................. 6 
2 CLEANING............................................................................................................................. 6 
TECHNICAL DATA........................................................................................................ 7 
1 SPECIFICATIONS...................................................................................................................... 7 
COMPLIANCE.............................................................................................................. 8 
 
 

EN-2 AS20 Compact Stirrer

1. INTRODUCTION

This manual contains installation, operation and maintenance instructions for AS20

compact stirrer. 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

Explosion 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.

Operate the equipment only under ambient conditions specified in these

instructions.

The equipment is for indoor use only.

Do not operate the equipment in wet, hazardous or unstable

environments.

Do not allow liquids to enter the equipment.

Use only approved accessories and peripherals.

Spills should be removed promptly.

Alkalis spills, hydrofluoric acid or phosphoric acid spills may damage the

unit and lead to the unit failure.

Do not immerse the unit for cleaning.

Do not operate the unit if it shows signs of electrical or mechanical

damage.

Place the stirrer on a flat, clean, non-slip workbench, and the non-slip feet

at the bottom must be clean and undamaged.

AS20 Compact Stirrer EN-3

Use a container with suitable size. Place the container in the center of the

container plate, and do not move it

Choose appropriate stirring speed to prevent liquid from spilling out of the

container due to excessively fast speed.

Do not move the stirrer by pulling the power cord to prevent damage to it.

Unplug the power adapter if you do not use the stirrer for a long time.

Make sure the power indicator on the panel goes out.

Service should only be performed by authorized personnel.

In the event of an unexpected power interruption, the stirrer will not

automatically restart.

WARNING: Never work in an environment subject to explosion hazards! The

housing of the instrument is not gas tight. (Explosion hazard due to spark

formation, corrosion caused by the ingress of gases)

WARNING! The protection provided by the unit may be impaired if used with

accessories not provided or recommended by the manufacturer, or used in a

manner not specified by the manufacturer.

WARNING! DO NOT use the unit in a hazardous atmosphere or with

hazardous materials for which the unit was not designed.

CAUTION! To avoid electrical shock, completely cut off power to the unit by

disconnecting the power cord from the unit or unplugging from the wall outlet.

1.2. Intended use

This instrument is intended for use in laboratories, pharmacies, schools, businesses and

light industry. It must only be used for operation described in the manual. Any other type

of use and operation beyond the limits of technical specifications, without written

consent from OHAUS, is considered as not intended. This instrument complies with

current industry standards and the recognized safety regulations; however, it can

constitute a hazard in use. If the instrument is not used according to these operating

instructions, the intended protection provided by the instrument may be impaired.

1.3. Package Contents

AS20 stirrer

Power cord

Stirring bar

User manual

and flyers

AS20 Compact

Stirrer

Instruction Manual

EN-4 AS20 Compact Stirrer

1.4. Control panel

Figure 1-1 Control panel

1. Display screen

2. Power button: press to turn on or off the stirrer.

3. Operation indicator: flashes to display operation status.

4. Power indicator: lights when power is on.

5. Speed control:

a) Press and hold the left side to decrease speed.

b) Press and hold the right side to increase speed.

c) Slide from left to right to increase speed slightly. (10 –40 rpm each time).

d) Slide from right to left to decrease speed slightly. (10 –40 rpm each time).

6. Container plate: place your container on it.

AS20 Compact Stirrer EN-5

2. OPERATION

2.1 Connection

Take out the supplied power cord, and connect each interface to the places according to

the illustration below.

Figure 1-2 Power cord connection

2.2 Operation

1. Connect the stirrer to a bench meter and power supply using the supplied power

cord demonstrated in section 2.1. The power indicator lights up when power is on.

2. Press the power button to turn on the stirrer. The display shows the speed of last

time.

The operation indicator then flashes after 3 seconds while the speed displayed

starts to increase until the speed of the last time is displayed. The operation

indicator thus becomes steady on.

3. You can press or slide the speed control to adjust stirring speed.

a) Press and hold the left side to decrease speed.

b) Press and hold the right side to increase speed.

c) Slide from left to right to increase speed slightly. (10 –40 rpm each time)

d) Slide from right to left to decrease speed slightly. (10 –40 rpm each time)

Connect to the

DC interface of

the bench meter

(Power supply

interface)

Connect to the

interface of the

power adapter

of the bench

meter

Connect to the

AS20 stirrer's

interface

EN-6 AS20 Compact Stirrer

4. After the speed is set, the speed displayed changes to the set one and the

operation indicator returns to being steady on.

3. MAINTENANCE

3.1 Troubleshooting

Error

Possible Solution

Unable to turn on

the stirrer

If the power indicator is off, check the power cord and power

adapter. Make sure they are plugged in and the connection is

correct.

The power indicator should be on if the above is correct.

Stirring bar is not

moving

1. Check if the container is made by an easily magnetized

material. Use a glass container instead.

2. Check if the stirring bar is damaged and replace it with

a new one.

Irregular jumping of

the stirring bar

1. Check if the container deviates from the center of the

container plate. Move the container to the correct

position.

2. Check if the stirring bar is damaged. Replace it with a

new one.

3. Check if the bottom of the container is irregular.

Decrease the stirring speed until the stirring bar

becomes stable, or replace a new container.

Note: If the troubleshooting section does not resolve your problem, contact an OHAUS

technical support agent. For assistance in the United States, call toll-free 1-800-526-

0659 between 8:00 AM and 5:00 PM Eastern Standard Time. An OHAUS Technical

Support Specialist will be available to assist you. Outside the USA, please visit our

website www.ohaus.com to locate the OHAUS office nearest you.

3.2 Cleaning

The housing may be cleaned with a cloth dampened with a mild detergent if necessary.

Wear work gloves when cleaning.

WARNING: Electric Shock Hazard. Disconnect the equipment from

the power supply before cleaning.

Make sure that no liquid enters the interior of the instrument.

Attention: Do not use solvents, harsh chemicals, ammonia or

abrasive cleaning agents.

AS20 Compact Stirrer EN-7

4. TECHNICAL DATA

4.1 Specifications

Equipment Ratings:

Indoor use only

Altitude:

0 to 2000m

Operating temperature:

5 to 40°C

Storage temperature:

-20 to 65°C

Operating Humidity:

20 to 85% relative humidity, non-condensing

Storage Humidity:

20 to 85% relative humidity, non-condensing

Electrical Supply:

12VDC, 0.1A. (For use with certified or approved power

supply, which must have a SELV and limited energy

output.)

Voltage fluctuations:

Mains supply voltage fluctuations up to ±10% of the

nominal voltage.

Overvoltage category

(Installation category):

Pollution degree:

Model

AS20 compact stirrer

Adjustable speed range

60-1500 r/min

Display

LCD

Length of the stirring bar

20 –30 mm

Maximum stirring capacity

1 liter

Maximum weight capacity

(H2O)

1.5 kg

Working plate material

Polypropylene

Size

190*130*12 mm (diameter)

Weight

0.2 kg

Ambient temperature

5 - 40 °C

EN-8 AS20 Compact Stirrer

5. COMPLIANCE

Compliance to the following standards is indicated by the corresponding mark on the

product.

Mark

Standard

This product complies with the applicable harmonized standards of

EU Directives 2011/65/EU (RoHS), 2014/30/EU (EMC) and

2014/35/EU (LVD). The EU Declaration of Conformity is available

online at www.ohaus.com/ce.

This product complies with the EU Directive 2012/19/EU (WEEE).

Please dispose of this product in accordance with local regulations at

the collecting point specified for electrical and electronic equipment.

For disposal instructions in Europe, refer to www.ohaus.com/weee.

EN 61326-1

ISED Canada Compliance Statement:

CAN ICES-003(A) / NMB-003(A)

ISO 9001 Registration

The management system governing the production of this product is ISO 9001 certified.

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