OHAUS Guardian 2000 Manuale utente

GuardianTM 2000

Quick Start Guide

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GuardianTM Hotplate-Stirrers EN-1

1. SAFETY INFORMATION

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

Caution, hot

surface

Protective

conductor

terminal

Alternating

current

Electrical shock

hazard

Safety Precautions

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.

•Always operate unit on a level surface for best performance and maximum

safety.

•DO NOT lift unit by the top plate.

•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.

•Disconnect unit from the power supply prior to maintenance and servicing.

•Spills should be removed promptly, after the unit has cooled down.

•Alkalis spills, hydrofluoric acid or phosphoric acid spills may damage the unit

and lead to thermal failure.

•DO NOT immerse the unit for cleaning.

•DO NOT operate the unit at high temperatures without a vessel/sample on the

top plate.

•DO NOT operate the unit if it shows signs of electrical or mechanical damage.

•Protective earthing of the equipment is achieved via connection of the

provided power cord to a compatible grounded power outlet.

WARNING: unit is not explosion proof. Use caution when unit is on or when

heating volatile materials.

EN-2 GuardianTM Hotplate-Stirrers

WARNING! DO NOT use the unit 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.

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! Beware of the following risks when heating.

-Flammable materials

-Low boiling point combustible substances

-Glass breakage as a result of mechanical shaking power

-Incorrect container size

-Too much medium

-Unsafe condition of container

Earth Ground - Protective Conductor Terminal

Alternating Current

Intended Use

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

and light industry. It must only be used for processing materials as described in

these operating instructions. 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.

GuardianTM Hotplate-Stirrers EN-3

2. BASIC FUNCTIONS

Rotate

/

I/O –Standby

Switch

Turn unit on

(Press switch)

Turn unit off

(Press switch)

Temp Knob

Functions

Change temp settings

(Rotate temp knob)

/

Turn heater on

(Rotate temp knob until unit

green light appears)



Change temperature

settings, while heating

(Rotate temp knob)

/

Turn heater off

(Rotate temp knob until unit

green light fades)



Speed Knob

Functions

Change speed settings

(Rotate speed knob)

/

Turn stirrer on

(Rotate speed knob until unit

green light appears)



Change speed settings,

while stirring

(Rotate speed knob)

/

Turn stirrer off

(Rotate speed knob until unit

green light fades)





EN-4 GuardianTM Hotplate-Stirrers

3. CONTROL PANEL

1. Left Knob: Controls temperature.

2. Standby Switch

3. Heater Indicator: Illuminates when heater is running.

4. Hot Top Caution Indicator: Illuminates when the top plate surface is hot. Do

not touch.

5. Speed Indicator: Illuminates when stirrer is running.

6. Right Knob: Controls speed.

Note: The top plates are of different dimension and material. Please refer to the

actual product for detail.

4. MAINTENANCE

4.1 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.

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

necessary.

4.2 Replacing Power Fuse

The fuse is located at the back of the instrument. Choose the correct fuse to replace

according to the fuse specification listed in the specification table.

WARNING: Electric Shock Hazard. Disconnect the equipment

from the power supply before replacing the fuse.

GuardianTM Hotplate-Stirrers EN-5

The use of a fuse of a different type or with a different value, or

bridging or shunting the fuse is not allowed and can possibly

cause a hazard to your safety and lead to instrument damage!

4.3 Troubleshooting

The following table lists common problems and possible causes and remedies. If

the problem persists, contact OHAUS or your authorized dealer.

Table 4-1 Troubleshooting

Error

Cause of Error

How to Fix

Unit fails to

power on

Missing or blown fuse

Add or replace fuse as necessary.

Unit fails to

heat

Heater over temperature

Heater damage

Unplug and replug the power cord

for reset, if the failure consistent,

please contact OHAUS.

Unit fails to

stir

Motor overload

Motor damage

Smaller vessel or reduce volume

in vessel and wait for auto reset, if

the failure consistent, please

contact OHAUS.

4.4 Service Information

If the troubleshooting section does not resolve your problem, contact an authorized

OHAUS Service Agent. For Service 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

Product Service Specialist will be available to assist you. Outside the USA, please

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

5. TECHNICAL DATA

Equipment Ratings:

Indoor use only

Altitude:

0 to 2000m

Operating temperature:

5°C to 40°C

Storage temperature:

-20°C to 65°C

Operating humidity:

20 to 80% relative humidity, non-condensing

Storage humidity:

20 to 80% relative humidity, non-condensing

Voltage fluctuations:

Mains supply voltage fluctuations up to ±10% of the

nominal voltage.

Overvoltage category

(Installation category):

Pollution degree:

EN-6 GuardianTM Hotplate-Stirrers

Table 5-1 Specification

Model

- Hotplate Stirrer

- Hotplate

- Stirrer

e-G21HSRDS

e-G21HPRDS

e-G21STRDS

e-G21HS04C

e-G21HP04C

e-G21ST04C

e-G21HS07C

e-G21HP07C

e-G21ST07C

Overall Dimensions

(L x W x H)

264 x 163 x 101 mm

(10.4 x 6.4 x 4.0'')

264 x 163 x 110 mm

(10.4 x 6.4 x 4.3'')

318 x 223 x 112 mm

(12.5 x 8.8 x 4.4'')

Top Plate Dimensions

Ø 13.5 cm (5.3'')

10.2 x 10.2 cm (4 x 4'')

17.8 x 17.8 cm (7 x 7'')

Top Plate Material

Ceramic Coated

Stainless Steel

Ceramic

Electrical (50 / 60 Hz)

- Hotplate Stirrer

- Hotplate

100-120V~ 5A / 220-240V~ 4A

100-120V~ 10A /

220-240V~ 7A

Electrical (50 / 60 Hz)

- Stirrer

100-120V~ 2A / 220-240V~ 1A

Fuses

- Hotplate Stirrer

- Hotplate

10 A, 5x20 mm, 250 VAC /

6.3 A, 5x20 mm, 250 VAC

15 A, 5x20 mm, 250 VAC /

10 A, 5x20 mm, 250 VAC

Fuses

- Stirrer

6.3 A, 5x20 mm, 250 VAC

Temperature Range

50° C to 380° C

70° C to 500° C

Temperature Stability of

Top Plate+

± 3% > 100C and ±°3C ≤ 100C

Stir Capacity

15 L

Speed Range++

200 to 1600 rpm

Weight Capacity

Up to 15 kg (33 lbs)

Shipping Dimensions

(W × D × H)

330 x 250 x 140 mm (13.0 x 9.8 x 5.5'')

390 x 290 x 160 mm

(15.4 x 11.4 x 6.3'')

Shipping Weight

- Hotplate Stirrer

- Hotplate

- Stirrer

3.1 kg

2.4 kg

2.9 kg

3.1 kg

2.4 kg

3.0 kg

4.6 kg

3.9 kg

4.5 kg

Note:

⚫+The parameter in the specification table are applicable to 2” (5cm) diameter center of the top

plate.

⚫++ Minimal speed varies depending on the stir bar, vessel and fluid conditions.

GuardianTM Hotplate-Stirrers EN-7

6. 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 applicable statutory standards of the

Restriction of the Use of Certain Hazardous Substances in

Electrical and Electronic Equipment Regulations 2012, UK

Electromagnetic Compatibility Regulations 2016 and Electrical

Equipment (Safety) Regulations 2016. The UK Declaration of

Conformity is available online at www.ohaus.com/uk-declarations.

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

CAN/CSA-C22.2 No. 61010-1, CAN/CSA-C22.2 No. 61010-2-010,

CAN/CSA-C22.2 No. 61010-2-051

UL 61010-1, UL 61010-2-010, UL 61010-2-051

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.

Scan the QR code to download the full instruction manual or visit

http://www.ohaus.com/support to view the full user manual.

GuardianTM 2000

Instruction Manual

EN-8 GuardianTM Hotplate-Stirrers

FCC Supplier Declaration of Conformity

Unintentional Radiator per 47CFR Part B

Trade Name: OHAUS CORPORATION

Model or Family identification: e-G21

Party issuing Supplier’s Declaration of Conformity:

Ohaus Instruments (Changzhou) Co., Ltd.

2F, 22 Block, 538 West Hehai Road, Xinbei District, Changzhou

Jiangsu 213022

China

Phone: +86 519 85287270

Responsible Party –U.S. Contact Information:

Ohaus Corporation

7 Campus Drive, Suite 310

Parsippany, NJ 07054

United States

Phone: +1 973 377 9000

Web:

www.ohaus.com

FCC Compliance Statement:

Note: This equipment has been tested and found to comply with the limits for

a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference when the

equipment is operated in a commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause

harmful interference in which case the user will be required to correct the

interference at his own expense.

Changes or modifications not expressly approved by the party responsible

for compliance could void the user’s authority to operate the equipment.

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