OHAUS MB90 AM User manual

Instruction Manual
MB90 Moisture Analyzer

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MB90 EN-1

Table of Contents

1. GETTING TO KNOW YOUR MOISTURE ANALYZER ......................................................... 4

1.1 Introduction............................................................................................................. 4

1.2 Overview of the Moisture Analyzer ............................................................................. 4

1.3 What is a Moisture Analyzer? .................................................................................... 4

2. SAFETY INFORMATION ................................................................................................ 5

2.1 Definition of Signal Warnings and Symbols ................................................................. 5

2.2 Product Specific Safety Notes ................................................................................... 6

3. INSTALLATION ............................................................................................................. 8

3.1 Unpacking and checking the standard equipment ......................................................... 8

3.2 Selecting the Location .............................................................................................. 8

3.3 Installing the Tray Pan, Draft Shield and Pan Support ................................................... 9

3.4 Leveling the Moisture Analyzer .................................................................................. 9

3.5 Connecting to a Power Supply ..................................................................................10

3.6 Switching the Moisture Analyzer on and off.................................................................10

4. MAKING A SIMPLE MEASUREMENT..............................................................................11

5. MENU .........................................................................................................................13

6. SETUP ........................................................................................................................14

6.1 Lock Out ...............................................................................................................14

6.2 Adjustment.............................................................................................................15

6.2.1 Weight adjustment ...........................................................................................15

6.2.2 Temperature adjustment ...................................................................................16

6.2.3 Weight adjustment record ..................................................................................18

6.2.4 Temperature adjustment record .........................................................................18

6.3 User settings..........................................................................................................19

6.3.1 Language .......................................................................................................19

6.3.2 Brightness.......................................................................................................20

6.3.3 Sound ............................................................................................................21

6.4 Device settings.......................................................................................................21

6.4.1 Date and Time .................................................................................................21

6.4.2 Peripherals......................................................................................................23

6.4.3 Print ...............................................................................................................24

6.4.4 GLP and GMP Data..........................................................................................25

6.4.5 Touch Screen Adjustment ..................................................................................26

6.5 System and data management .................................................................................27

6.5.1 Export and import settings and methods...............................................................27

6.5.2 Backup and restore...........................................................................................29

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EN-2 MB 90

6.5.3 Export event logs..............................................................................................30

6.5.4 Factory reset....................................................................................................30

6.5.5 Software update ...............................................................................................31

7. METHOD LIBRARY.......................................................................................................32

7.1 Method load, edit and delete ....................................................................................32

7.2 Entering Method Name............................................................................................32

7.3 Setting the Drying Profile .........................................................................................33

7.4 Setting the Drying Temperature ................................................................................33

7.5 Selecting the switch-off criterion ................................................................................34

7.6 Displayed result......................................................................................................34

7.7 Target Weight ........................................................................................................35

7.8 Starting Mode ........................................................................................................36

7.9 Default method ......................................................................................................36

7.10 Method export and import ........................................................................................37

8. RESULTS ....................................................................................................................38

8.1 Test Results ..........................................................................................................38

8.1.1 Result data and curve ........................................................................................38

8.1.2 Statistics ..........................................................................................................39

8.1.3 Result export ....................................................................................................40

9. HELP INFORMATION ...................................................................................................41

10. PRINTING TEST DATA .................................................................................................42

10.1 RS232 Command Table ..........................................................................................44

10.2 RS232 Pin out........................................................................................................44

11. CARE AND MAINTENANCE...........................................................................................45

11.1 Cleaning Interior/Exterior Components ......................................................................45

11.2 Replacing Power Line Fuse ....................................................................................47

11.3 Troubleshooting .....................................................................................................47

11.4 Error detection .......................................................................................................48

11.5 Service information.................................................................................................49

11.6 Accessories ..........................................................................................................49

12. TECHNICAL DATA .......................................................................................................49

12.1 Admissible ambient conditions ..................................................................................49

12.2 Specifications.........................................................................................................50

13. COMPLIANCE..............................................................................................................50

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MB90 EN-3

Overview of Controls

1 2 3 4 5 6

1

Turns On or Off display and fan.

2

When pressed, sends Print command.

3

When pressed, either starts or stops the drying process.

4

When pressed, performs Tare function.

5

Leveling indicator

6

Leveling Feet

Used to level the Moisture Analyzer.

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EN-4 MB 90

1. GETTING TO KNOW YOUR MOISTURE ANALYZER

This section provides you with essential information on your MB90 Moisture Analyzer.
Please read through the section carefully even if you have previous experience with OHAUS
Moisture Analyzers and be sure to familiarize yourself with the safety notes.

1.1 Introduction

Thank you for deciding to purchase a n MB90 Halogen Moisture Analyzer from Ohaus.
Behind your instrument stands OHAUS, a leading manufacturer of precision Moisture
Analyzers, Balances, Scales and Indicators. An Aftermarket Department with trained
instrument technicians is dedicated to provide you with the fastest service possible in the
event your instrument requires servicing. OHAUS also has a Customer Service Department
to answer any inquiries regarding applications and accessories.

To ensure you make full use of the possibilities offered by your Moisture Analyzer, please
read the manual completely before installation and operation.

You can also find and download the instruction manual at
http://dmx.ohaus.com/WorkArea/showcontent.aspx?id= 4294974528

1.2 Overview of the Moisture Analyzer

The Moisture Analyzer offers a high level of operating convenience and useful functions to
make accurate measurements.

The Moisture Analyzer has the following features:
— Fully programmable with colorful touch screen
— Extremely rugged and chemically resistant construction.
— Ergonomic operating controls and a large, easily readable display.
— Easy to follow menus for simplified operation.
— Built-in functions for manual, automatic timing, printing intervals.
— Built-in selectable drying profiles.
— Built-in library stores 2 samples complete with setup parameters and statistics.
— Built-in RS232 and USB interface.
— Any of fourteen languages (English, Spanish, French, German, Italian, Russian,
Polish, Czech, Hungarian, Portuguese, Chinese, Japanese, Korean, Turkish)
— Display contains all test data during drying process.
— A variety of optional accessories includes disposable pan liners, temperature
calibration kit, interface communication cables, printer, and a security device.

1.3 What is a Moisture Analyzer?

The Ohaus Halogen Moisture Analyzer can be used to determine the moisture content of
practically any substance. The instrument operates on the thermogravimetric principle: At
the start of the measurement, the Moisture Analyzer determines the we ight of the sample;
the sample is then quickly heated by the integral halogen dryer unit and moisture vaporizes.
During the drying operation, the instrument continuously determines the weight of the
sample and displays the result. On completion of drying, result is displayed as % moisture
content, % solids, weight or % regain.

Of particular importance in practice is the rate of heating. In comparison with conventional
infrared heating or the drying oven method, for example, the halogen dryer of your
instrument needs a shorter time to reach its maximum heating power. It also allows the use
of high temperatures; an additional factor in shortening the drying time. Response times for
the control of production are shorter resulting in increased productivit y.

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MB90 EN-5

All parameters of a measurement (drying temperature, drying time, etc.) can be pre-selected.
The Moisture Analyzer offers many other possibilities. A few of these are listed here:

— The integrated database for drying procedures stores the settings for your

samples.

— The drying characteristics can be matched to the type of sample.

— Your settings and measurement results can be recorded and stored.

— Built-in battery backup stores valuable data during a power failure.

Even though the Moisture Analyzer contains many functions, operation remains simple. The
four button controls on the front panel for the frequently usage: Power on/off, Print,
Start/Stop and Tare. The 4.3” color touch screen allows entry into a variety of displays which
includes a test library where previous samples are recorded along with the test parameters
so that a similar sample can be run without the need to enter all new data. The color touch
screen also indicates the method name, selected temperature, actual temperature, time and
moisture content in percent, solids in percent, grams, % regain and a graphical display which
illustrates the time and percentage.

Your Moisture Analyzer conforms with all common standards and directives. It supports

standard procedures, work techniques and records as required by GLP (Good Laboratory
Practices) and SOP (Standard Operating Procedure). We recommend the use of the

OHAUS SF40A Printer.

2. SAFETY INFORMATION

2.1 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 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 (no symbol)

for important information about the product.

Note (no symbol)

for useful information about the product.

Warning Symbols

General hazard

Electrical shock

Hot surface

Inflammable or

explosive substance

Toxic substance

Acid / Corrosion

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EN-6 MB 90

2.2 Product Specific Safety Notes

General Safety Information

Your instrument meets the state of the art technology and complies with all recognized
safety rules, however, certain hazards may arise in extraneous circumstances. Do not open
the housing of the instrument: It does not contain any parts which can be maintained,
repaired or replaced by the user. If you ever have problems with your instrument, contact
your authorized OHAUS dealer or service representative.
Always operate and use your instrument only in accordance with the instructions contained
in this manual. The instructions for setting up your new instrument must be strictly observed.

If the instrument is not used according to these Operating Instructions, protection of
the instrument may be impaired and OHAUS assumes no liability.
Intended Use

Your Moisture Analyzer is used for determining the moisture in samples. Use the instrument
exclusively for this purpose. Any other type of use and operation beyond the limits of
technical specifications without written consent from OHAUS, is considered as not intended.
Moisture determination applications must be optimized and validated by the user according
to local regulations. Application-specific data provided by OHAUS is intended for guidance
only.

It is not permitted to use the instrument in explosive atmosphere of gases, steam,
fog, dust and flammable dust (hazardous environments).

Staff Safety

The Moisture Analyzer may be operated only by trained personnel who are familiar with the
properties of the samples used and with the handling of the instrument.
In order to use the instrument, you must have re ad and understood the operating
instructions. Keep the operating instructions for further reference.
Never make any modifications to the instrument and use only original spare parts and
optional equipment from OHAUS.

Protective Clothing

It is advisable to wear protective clothing in the laboratory when working with the instrument.

A lab coat should be worn.

A suitable eye protection such as goggles should be worn.

Use appropriate gloves when handling chemicals or hazardous substances,
checking their integrity before use.

Safety Notes

WARNING
Risk of electric shock

Your instrument is supplied with a 3-pin power cable with an equipment
grounding conductor. Only extension cables which meet this relevant standards
and also have an equipment grounding conductor may be used. Intentional
disconnection of the equipment grounding conductor is prohibited.

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MB90 EN-7

CAUTION
The Halogen Moisture Analyzer works with heat!

a) Ensure sufficient free space around the instrument to avoid heat accumulation
and overheating (approx. 1 m free space above the heating module).
b) The vent over the sample must never be covered, plugged, ta ped over or
tampered with in any other way.
c) Do not place any combustible materials on, under or next to the instrument
since the area around the heating module may be hot.
d) Exercise caution when removing the sample. The sample itself, the sample
chamber, the draft shield and any sample vessels used may still be very
hot.
e) During operation, you should never open the heating module itself as the
ring-shaped heating reflector or its protective glass can reach 400 °C! If
you have to open the heating module e.g. for maintenance, disconnect the
instrument from the power supply and wait until the heating module has
cooled down completely.
f) No modifications must be made within the heating module. It is particularly
dangerous to bend any components or remove them or to make any

other changes.

Certain samples require special care!

With certain types of samples, there is a possibility of danger to personnel or damage of
property.
Please note that the user always has the responsibility and liability for damage caused by
use of any types of samples!

CAUTION
Fire or Explosion

• Flammable or explosive substances.

• Substances containing solvents.

• Substances which evolve flammable or explosive gases or vapors when

heated.
a) In cases of doubt, perform a careful risk analysis.
b) Work at a drying temperature that is low enough to prevent the formation
of flames or an explosion.
c) Wear protective goggles.

d) Work with small amounts of sample.

e) Never leave the instrument unattended!

WARNING
Substances which contain toxic or caustic components

Toxic gases produced during drying could cause irritations (eyes, Skin,
breathing), illness or death.

– Such substances may be dried only in a fume cupboard.

CAUTION
Corrosion

Substances which evolve corrosive vapors when heated (e.g. acids).
– Work with small amounts of samples as the vapor can condense on cooler

housing parts and cause corrosion.

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EN-8 MB 90

3. INSTALLATION

In this section, you will learn how you unpack and install your new Moisture Analyzer and
prepare it for operation. On completion of the steps described in this section, your Moisture
Analyzer is ready for operation.

3.1 Unpacking and checking the standard equipment

Open the package and remove the instrument and the accessories. Check the completeness
of the delivery.
The following accessories are part of the standard equipment of your new Moisture Analyzer.
— 1 Box, Aluminum sample pans
— 1 Pan support
— 1 Glass fiber Pad
— 1 Draft shield
— 1 Tray Pan
— 1 Power cable
— 1 Pan Handle
— 1 Spoon
— 1 Quick Guide

Remove packing material from the instrument.
Check the instrument for transport damage. Immediately inform your Ohaus dealer if you
have complaints or parts are missing.
Store all parts of the packaging. This packaging guarantees the best possible protection for

the transport of your instrument.

3.2 Selecting the Location

The Moisture Analyzer should always be used in an environment which is free from
excessive air currents, corrosives, vibration, and temperature or humidity extremes. These
factors will affect displayed weight readings.

DO NOT install the Moisture Analyzer:

• Next to open windows or doors causing
drafts or rapid temperature changes.

• Near air conditioning or heat vents.

• Near vibrating, rotating or reciprocating
equipment.

• Near magnetic fields or equipment that
generate magnetic fields.

• On an unlevel work surface.

• In confined areas, allow sufficient
space around the instrument for ease
of operation and keep away from
radiating heat sources.

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MB90 EN-9

3.3 Installing the Tray Pan, Draft Shield and Pan Support

Lift the cover straight up and Install the tray
pan in the base of the heating chamber.

Install the draft shield (only one position
possible) on top of the tray pan.

Install the pan support into position. Turn the
pan support until it engages. In the locked
position, the arm of the pan support points
directly towards the front of the analyzer.

3.4 Leveling the Moisture Analyzer

Exact horizontal positioning and stable installation are prerequisites for repeatable results.
To compensate for small irregularities or inclinations at the location, the instrument can be
leveled.

Adjust the leveling feet of the Moisture Analyzer
until the air bubble in the indicator is centered. The
level indicator is located under the cover towards
the rear of the Moisture Analyzer.

Attention: The instrument should be leveled each
time its location is changed.

Leveling

Indicator

Leveling

Feet

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EN-10 MB90

3.5 Connecting to a Power Supply

WARNING: Risk of electric shock.

- Use only the 3-pin power cord with equipment grounding connector which
was supplied with your instrument. Only connect the power cord to a 3-pin
ground outlet.

- Only extension cords which meet the relevant standards and also have an
equipment grounding conductor may be used.

Attention:

Check to ensure the voltage stated on the Moisture Analyzer’s data label matches your local
line voltage. If this is not the case, do not connect the Moisture Analyzer to the power supply,
contact your responsible OHAUS dealer.
The halogen dryer unit is designed to operate at a specific line voltage
(90V AC or 240V AC). The dryer unit is installed at the factory and is matched to the
particular line voltage of the country of destination.

Connection to a line voltage that is too high can lead to burning out the halogen heater,
whereas, a supply voltage that is too low will prolong the drying process and the instrument
may not operate properly.

Connect the power cord to the power supply socket located at the
rear of the Moisture Analyzer and to the power supply outlet. The
Moisture Analyzer becomes operational as soon as power is

applied. The display will remain off until the On/Off button is

pressed.

Allow the Moisture Analyzer to warm up for at least 30 minutes to

enable it to adapt itself to the ambient conditions. If the Moisture Analyzer
has been stored in a very cold environment before installation, it may
require several hours for it to stabilize.

WARNING:
If the power cable supplied is not long enough, use only a proper 3-pin
extension cable with an equipment grounding connector.

3.6 Switching the Moisture Analyzer on and off

Your Moisture Analyzer is on at all times when connected to a power source. The display can be
turned on or off.

To switch the Moisture Analyzer on, press the
On/Off button. An internal diagnostic test is

performed; the display lights and the Home screen
appears followed by the initial display.

To switch the Moisture Analyzer off, press the
On/Off button. After the analyzer has been switched

off, it is in the standby mode. If you wish to perform a

test, press the On/Off button again.

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MB90 EN-11

Note:

As your Moisture Analyzer needs no warm-up time
when in the standby mode and is immediately ready
for testing samples, we advise you to switch the
display off by use of the On/Off button and not to
disconnect it from the power supply. This also ensures
that the Moisture Analyzer is always in thermal

equilibrium.

4. MAKING A SIMPLE MEASUREMENT

With your Moisture Analyzer powered on, you are ready to operate for the first time and
perform a simple measurement. For this simple test, you will enter the Default method and
enable the test. By doing this test, you will become familiar with the instrument.
Included with your Moisture Analyzer is a specimen sample for your first measurement. This
sample is an absorbent glass fiber pad. During your first measurement, the instrument
operates with the factory settings.

If the display is not visible and the unit is plugged into a
power source, press the On/Off button.

Directly start a measurement.

Open the cover on the Moisture Analyzer.
Clean the pan.
Place the pan handle in the sample chamber. Ensure
that the tongue of the pan handle fits exactly in the slot
of the draft shield element.

Place the empty sample pan and glass fiber pan in the
pan handle. The sample pan must lie flat in the pan
handle.

Attention: It is advisable for you to work with the pan

handle at all times. The pan handle is ergonomic, safe
and provides protection against possible burns due to a
hot sample pan.
Close the cover. This sets the Moisture Analyzer to zero
automatically.

Open the cover on the Moisture Analyzer.

Wet the glass fiber pan with a 0.5 to 1 gram of water.

Attention: Minimum sample size must be greater
than 0.5 gram.

Starting the test

Close the cover, the Moisture Analyzer starts the drying
and measurement process automatically.

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EN-12 MB90

Drying and measurement

You are now able to follow the progress of the drying
cycle on the display. This first display comes up
automatically when the test was started.

Observing the test progress

There are five displays available when the Moisture
Analyzer is running a test.

(Showing %MC, %DC, g, %RG or a curve. )

When pressing the data area while %MC is shown, the
display will cycle through each of the five displays.

The display indicates the Method Name,
Temperature/Time, actual temperature, elapsed time
duration of the test, moisture and curve. The test
automatically stops at the end of the measurement.
If you want to end the test sooner, press the
button.

Congratulations! You have just performed your first

measurement with your moisture analyzer.

CAUTION: Danger of burns.

Sample, sample pan and
sample pan holder may still be
hot.

Open the cover and carefully remove the sample pan
handle from the drying area.

The analyzer comes with a default method preinstalled.
The settings of the default method are shown on the
display. To edit the settings, press on the area where the
settings are displayed as shown to the left.

Press the setting items to edit them.
Please see section 7 for more details.

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MB90 EN-13

5. MENU

The Home screen appears after the moisture analyzer has been switched on.

1 2 3 4

Button area

Current Method

Results area

Instructions area

Date and time area

1. Method library: Change parameters and create new method.

2. Test results: Manage test results.

3. Setup: Change system settings.

4. Help information: Help information.

Method Library

Press the Method library button to access the
Method library menu.

The test library contains 2 methods. All
methods which were previously entered can be
recalled and the parameters for the recalled
method when selected will be repeated.

Test Results

Press the Test results button to access the

test results menu.

The Test results contains up to 100 test
results. All results can be recalled, sorted and
displayed statistically.

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EN-14 MB90

Setup

Press the Setup button to access the Setup

menu.

Help Information

Press the Help button to access the Help

menu.

6. SETUP

The setup menu is activated by pressing the Setup button. The menu contains: lock out,
weight and temperature adjustment, user settings, device settings, system and data
management. Please review this entire section and the rest of the manual before making
changes to the Analyzer. A description of each menu item and procedure follows:

6.1 Lock Out

Selecting this entry, then setting Lock Out to ON locks out all changes fro m the Method
Library, Result, Setup, method and system data management. You would use this function
after the Analyzer has been put into operation, and you do not want to change any of the
test or analyzer setup parameters. "Lock Out" is intended to protect against accidental menu
changes.

Press Setup button to access the Setup
menu.

Press Back to return to Home screen.

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MB90 EN-15

Press Lock out to access the lock out menu.

Press Lock to lock out
Press Unlock to release.

6.2 Adjustment

6.2.1 Weight adjustment

The Moisture Analyzer can be adjusted with an external mass of 50 grams. Adjustment of
the Moisture Analyzer is not absolutely necessary for a correct moisture determination as the
measurement is relative. The balance determines the weight of the sample before and after
drying and the moisture is calculated on the basis of the ratio between wet and dry weights.
Nevertheless, you should adjust the built-in balance under the following conditions:

- If this is stipulated by your quality assurance system (GLP, GMP, ISO 9001).

- If you suspect the analyzer has been abused.
To adjust the analyzer, processed as follows:

Press Setup button to access the Setup

menu.

Press Back to return to Home screen.

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EN-16 MB90

Press the Adjustment button to access
adjustment menu.

Press Back to return to previous step.

Press the Weight adjustment-external button

The display highlights the action you should
take.
Follow the instructions on the display.
Remove the sample pan. Place the required
weight on the pan support.
The display indicates if the adjustment was
successful.

6.2.2 Temperature adjustment

You must have a temperature calibration kit to perform this procedure. If the Moisture
Analyzer has been recently used, allow at least 30 minutes before performing adjustment.

Note: The temperature calibration kit is available as optional equipment.

Press Setup button to access the adjustment
menu.

Press Back to return to Home screen.

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MB90 EN-17

Press adjustment button.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Temperature adjustment button.

You are now prompted to remove the pan
support. Place a temperature calibration kit
and close the upper housing.

Press the Start to initiate the temperature

adjustment process. Follow the screen
prompts throughout the process.

The dryer unit is heated to a temperature of
100°C. You can observe the progress on the
display as the dryer temperature and count
down period are displayed. After 15 minutes,
read the thermometer through the inspection
window on the cover and enter this
temperature. Adjust the display reading to
agree with the thermometer, then press the

Enter button. You have 15 minutes to make

this adjustment, otherwise the adjustment is

terminated.

This is a two-point adjustment (100°C and
160°C). The dryer unit now heats to the
second temperature (160°C). Adjustment of
the temperature is defined by two points.
Proceed exactly as you did for the first
temperature. After you have set the display
to agree with the thermometer, then press

the Enter button.

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EN-18 MB90

CAUTION: Danger of burns.

Be careful when removing the temperature
calibration kit from the dryer unit as it can be
very hot. Allow it to cool down by opening the
cover before removing.
Remove the calibration kit. Replace the pan
support in its proper positions.

6.2.3 Weight adjustment record

Press Setup button to access the Setup

menu.

Press adjustment to access the adjustment

menu.

Press Back return to Home screen.

Press Weight adjustment record to list the

weight adjustment record data.

Press Back to previous step.
Press Exit return to Home screen.

6.2.4 Temperature adjustment record

Press Setup button to access the Setup

menu.

Press Back to return to Home Screen.

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MB90 EN-19

Press Weight and temperature adjustment
button to access the adjustment screen.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press the Temperature adjustment history
button.
Here you will find the last temperature
adjustment result.

Press Back to return to previous screen.

6.3 User settings

6.3.1 Language

For convenience, the Moisture Analyzer is equipped with fourteen languages available on all
displays. The following steps show how to set a language.

Press Setup button to access the Setup
screen.

Press Back to return to Home screen.

Press User settings to access the user

settings menu.

Press Language to set language.

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EN-20 MB90

Select LANGUAGE.

Note: If you select English as the dialog

language, the date format is changed and
appears on all records in the MM/DD/YYYY
format.

6.3.2 Brightness

Press Setup button to access the Setup
menu.

Press Back to return to Home screen.

Press User settings button to access the

User settings menu.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Brightness button.

Adjust the brightness of the screen to
desired level.

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MB90 EN-21

6.3.3 Sound

Press Setup button to access the Setup
menu.

Press Back to return to previous screen.

Press User settings button to access the
User settings menu.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Sound button.

Adjust the volume of the beep to desired
level.

.

6.4 Device settings

6.4.1 Date and Time

This Moisture analyzer has a communication output which allows printing the date and time
on every record. When this instrument is put into operation for the first time, you should enter
the current date and time. These settings are retained even if you di sconnect your
instrument from the power supply. A built-in battery will maintain all data. To set the date and
time, proceed as follows:

Press Setup button to access the setup
menu.

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EN-22 MB90

Press Back to return to previous screen.

Press Device settings to access the Device
settings menu.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press the Date-Time button.

Press the follow items to set the date and
time.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Set date format.

Press Back to return to previous screen.

Set date.
Press + and – to set correct date, month and
year.

Set time format.

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MB90 EN-23

Set time.
Press +and – to set correct time.

6.4.2 Peripherals

This Moisture Analyzer is equipped with USB and RS232 compatible interfaces for
communication with USB storage devices, printers and computers.
The following sections describe the hardware and software provided with the Moisture

Analyzer.

Press Setup button to access the Setup
menu.

Press Back to return to Home screen.

Press Device settings button to access the
Device settings menu.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Peripherals button.

Select the following items to set RS232 port
when RS232 port link to printer or other
RS232 compatible device.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Setting Device port

Select the com1 for RS232, com4 for USB

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EN-24 MB90

Setting Baud rate

Select the desired baud rates of 1200, 2400,
4800, 9600, 19200, 38400, 57600 and

115200. Default setting is 9600 Baud.

Setting Data bits

Select the desired data bits of 7 or 8. Default
setting is 8.

Setting Parity

Select the desired parity setting of either
NONE,EVEN or ODD. Default setting is
NONE.

Setting Stop bits

Select the desired stop bits of 1 or 2. Default
setting is 1.

Setting Handshake

Select the desired handshake of NONE,
Xon/Xoff. Default setting is NONE.

6.4.3 Print

Press Setup button to access the Setup

menu.

Press Back to return to Home screen.

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MB90 EN-25

Press Device settings button.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Print settings button to access the
Print settings menu.

Press Print adjustment result
automatically to switch ON or OFF.
Press Print measurement result
automatically to switch ON or OFF.
Press Intermediate results print interval to

set the print interval.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press the Intermediate results print interval
button.
Choose the interval seconds or minutes.

6.4.4 GLP and GMP Data

Press Setup button to access the setup
menu.

Press Back to return to Home screen.

Press Device settings button to access the
Device menu settings.

Press Back to return to previous screen.
Press Exit to return to Home screen.

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EN-26 MB90

Press GLP and GMP Data to access the
GLP and GMP Data menu.

Press Back to return to previous screen.
Press Exit to return to Home screen.

Press Company name, Department or
Instrument ID buttons to define related
information.

6.4.5 Touch Screen Adjustment

Press Setup button to access Setup menu.

Press Back to return to Home screen.

Press Device settings to access the device

settings.

Press Touch screen adjustment to adjust

the touch screen.

Press the Start button to start the

adjustment.

Please follow the process to adjust the
screen.

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MB90 EN-27

When the adjustment complete, press OK to

exit.

6.5 System and data management

6.5.1 Export and import settings and methods

Press Setup button to access Setup menu.

Press Back to return to Home screen.

Press System and data management button
to access the System and data management
menu.

Press Back to return to previous step.
Press Exit to return to Home screen.

Press Export and import settings and
methods to access the export and import

menu.

6.5.1.1 Export data

Press Export data to USB flash drive to

select location and export data to USB drive.

Press Back to previous step.
Press Exit to return to Home screen.

Press File name to change file name.
Press Location to select the export location.
Press Export selection to select the export

items.

Press Cancel to previous step.

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EN-28 MB90

Press the items to select.

Press Cancel to cancel data export.
Press OK to confirm and back to previous

step.

After selecting the location, Export button is

available.

Press Cancel to cancel data export.
Press Export to execute.

6.5.1.2 Import data

Press Import data from USB flash drive to

select location and import data from USB
drive.

Press Back to previous step.

Press Import from file to select the file to

import.

Press Cancel to cancel data import.

After select the import file, the Import button

is available.

Press Cancel to cancel data import.
Press Import to execute.

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MB90 EN-29

6.5.2 Backup and restore

6.5.2.1 Backup system

Press Backup and restore to backup or

restore the system settings.

Press Backup system on USB flash drive

to back up system.

Press Back to previous step.
Press Back to return to previous step.

Press File name to change file name.
Press Location to select backup location.
Press Cancel to cancel backup.

After select backup location, the Backup

button is available

Press Cancel to cancel the backup.
Press Backup to execute.

6.5.2.2 Restore system

Press Restore system from selected back

up to restore system.

Press Back to previous step.

Press Restore from file to select the restore

file.

Press Cancel to cancel the restore.

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EN-30 MB90

After select the restore file, the Restore

button is available.

Press Cancel the restore.
Press Restore to execute.

6.5.3 Export event logs

Press Export event logs to access the

export event logs menu.

Press File name to change file name.
Press Location to select the export location.
Press Cancel back to previous step.

After select the export location, the Export
button is available.

Press Cancel to cancel export.
Press Export to execute.

6.5.4 Factory reset

Press Factory reset button to reset to factory
default settings.

Press Cancel to return to previous screen

without resetting.

Press Reset to perform a reset.

CAUTION:

All methods and test results will be deleted
when performing a factory reset.

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MB90 EN-31

After factory reset, press OK to restart

instrument.

6.5.5 Software update

Press Software update to access the

update the software.

Press update from file to select file to

update.

Press Cancel to return to previous screen.

After select the update file, the Update

button is available.

Press Update to execute.

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EN-32 MB90

7. METHOD LIBRARY

This section contains information on the use of the Method Library which will enable you to
set the actual drying parameters such as Profile, Switch-Off, Display, Target Weight and the
use of the library.

The Operating Concept

You have already set the Moisture Analyzer setup in Section 6 and have tried the simple
moisture determination in Section 4. You are now ready to perform moisture determinations
in a precise manner. The test menu shown in Section 7 offers a number of setting
possibilities to match the measurement process to your specific requirements. For instance,
you can select the drying temperature, type of display and many other parameters.
Please keep in mind the importance of preparing your sample, the distribution of the sample
on the weighing pan, the type of sample and the temperature range. Remember, the greater
the number of uniform samples tested, the greater the accuracy of the results.
Please review this entire section before actually making any settings to become familiar with
the instrument.

7.1 Method load, edit and delete

Press Method library in Home screen.

Press method name to check method
settings and load to current method.

Press Back to Home screen.
Press New to create a new method.
Press Export to export methods.
Press Import to import methods.

Enter the Method 1 to check the settings.
Press Back to previous screen.
Press Delete to delete this method.
Press Edit to edit method settings.
Press Load to load this method as current

method.

7.2 Entering Method Name

Press Method Library on the Home screen.
The method library is displayed.

Complete information on how to use the
library is covered in this section.

Press New button to start a new test.

The screen will change to key in the new
method name.

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MB90 EN-33

Enter either a method name or identifying
number and press the OK button.

7.3 Setting the Drying Profile

The drying profile contains two settings, Standard and Fast. This section describes each of the drying
profiles. Review the profile descriptions. Depending upon the sample material to be analyzed, select
the appropriate profile and proceed as follows:

Press the Drying profile button.

Standard Profile

Fast Profile

7.4 Setting the Drying Temperature

The drying temperature can be set from 40 °C to 200 °C.

Press the Drying Temperature button to
access the temperature setting menu.

Enter the desired drying temperature and
press the OK button.

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EN-34 MB90

7.5 Selecting the switch-off criterion

This menu offers you different switch-off criterion. Switch-off criterion defines when the
instrument should end the drying. Switch-off criterion eliminates checking your watch or
clock and stopping the drying manually. Review the list below and select one criterion that
suits your purpose.

The following settings can be selected for the
switch-off criterion:
— Timed switch-off
— Auto switch-off

Timed switch-off

With this switch-off criterion selected, the
measurement lasts until the preset drying
time has elapsed (the display provides you
with continuous information on the drying
time).

Using the +/- buttons, enter the desired

drying time and press the OK button.

Auto switch-off

The switch-off criterion is based on a weight loss per unit of time. As soon as the mean

weight loss is less than a preset value during a specified time, the instrument considers
drying as complete and automatically discontinues the measurement process. During drying,
the display indicates the elapsed time of the drying process; the switch -off criterion is
inactive during the first 30 seconds.
The automatic switch-off criterion is less than 1mg loss in 60 seconds.

7.6 Displayed result

Displayed result offers you the choice of whether your display indicates % MC, % DC, % RG or grams
during the measurement process.

Press the Displayed result button.

Select %MC, %DC, %RG or g.

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MB90 EN-35

%MC(Moisture Content) = Initial weight-Final weight x 100%

Initial weight

%DC(Solids Content) = Final weight x100%

Initial weight

%RG(Regain Content) = Initial weight-Final weight x 100%
Final weight

7.7 Target Weight

Target weight is used when previous samples have been tested and the target weight is known. A
consistent sample size is required when using Target Weight. If the target weight is out of tolerance,

the measurement cannot be started.

Select the Target Weight.

Enable the Target weight and press ON
button.

Set the target weight and press OK button.

Press Target weight tolerance to set the

tolerance of target weight.

Set the target weight tolerance in %.

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EN-36 MB90

The check weighing bar indicates the sample
weight.

7.8 Starting Mode

In this menu you can define if the instrument should perform certain functions automatically
or manually.

Press the Starting mode button.

Automatic

This mode can be used for most kinds of
samples. When closing the sample chamber,
the weight of the sample is recorded and the
measurement is started.
It is the factory default setting.

Manual

We advise you to use the manual operating mode for samples which contain readily volatile
substances. In contrast to the automatic operating mode, in the manual operating mode the
sample chamber does not automatically close when the Start/Stop button is tapped.
However, the initial weight important for the determination of the moisture content is
recorded. In the manual operating mode you have time for further preparation of the sample
while weight losses due to evaporation during the preparation time are measured from the
outset. As soon as the sample is ready for drying, close the sample chamber. As soon as the
automatic sample chamber is closed, drying starts. In the manual operating mode you can
open the sample chamber during a drying operation. In contrast to the automatic mode,
drying will not be stopped but simply interrupted until the automatic sample chamber is
closed again.

7.9 Default method

The analyzer comes with a default method
preinstalled.
Follow the instruction message to start a
measurement directly.
Press parameters area to edit.

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MB90 EN-37

After change the settings, the Save button

available.

Press Save to save to default method.

7.10 Method export and import

Press Export to export methods.

Press File name to change export file name.
Press Location to select the export location.
Press Export selection to select methods to

export.

Press Cancel to previous screen.

After select the export location and methods, the

Export button is available.
Press Export to execute.

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EN-38 MB90

Press Import to import methods.

Press Import from file to select the file to import.
Press Cancel to previous screen.

After select the import file, the Import button is

available.

Press Location to change the import location.
Press Import selection to select methods to

import.

Press Cancel to previous screen.

8. RESULTS

This section contains the management and evaluation of measurement results.

8.1 Test Results

Press Results button on the Home screen to
access the results menu.

Select the method name to list all the test
results of the method.

Press Back to return to Home screen.

8.1.1 Result data and curve

Press result item to access the detail data.

Press Back to previous step.
Press Delete to delete the results.
Press Export to export these results.
Press Statistics to access statistics menu.

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MB90 EN-39

Press Back to previous step.
Press Delete to delete current result.
Press Export to export current result.
Press Curve to show result curve.

Press Back to results list.
Press Delete to delete current result.
Press Export to export current result.
Press Data to show detailed result data.

8.1.2 Statistics

Select the method name to list all the test
results of the method.

Press Statistics to access statistics menu.

Press result item to select.

Press to select all items.

Press Cancel back to previous step.

After select the items, the OK button is
available.
Press result item to remove.

Press to remove all items.

Press Cancel back to previous step.
Press OK to execute.

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EN-40 MB90

8.1.3 Result export

Press Export to export all the results.

Press File name prefix to edit file name.
Press Location to select export location.
Press Export selection to select export

results.

Press Cancel to previous step.

After select the export location, the Export

button is available.

Press Cancel to previous step.
Press Export to export results.

Press result item to check one result data
and export it.

Press Export to export this result.

Press Export to export this result.

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MB90 EN-41

Press File name to edit file name.
Press Location to select export location.
Press Cancel to previous step.

After select the export location, the Export
button is available.

Press Cancel to previous step.
Press Export to the export result.

9. HELP INFORMATION

Level Assist

Press Help button on the Home screen to
access the help information menu.

Select Level Assist button to access it.
Please adjust the level feet accordingly.

Press screen to exit.

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EN-42 MB90

10. PRINTING TEST DATA

Printing data to an external computer or printer requires the communication parameters be
set first.
Printing to an external printer or computer will occur each time the Print button is pressed. If
the Print Interval is set in the Test Menu, printing can occur in a continuous fashion at
specified intervals.

Samples of weight adjustment, temperature adjustment and test data are shown as follows:

Weight adjustment printout

Temperature adjustment printout

WEIGHT ADJUST EXTERNAL

Weight Adjustment end 19.Dec 2017 11:20

Type MB90
SNR 1234567

Nominal Weight 50.000 g
Actual Weight 50.001 g
Difference 0.001 g
Cell Temperature 27.19 °C
Adjustment Done

Weight ID:

............................................................

Signature:

............................................................

------------END---------------

-TEMPERATURE ADJUSTMENT-

Temperature Adjustment end 19.Dec
2017 17:00

Type MB90

SNR 1234567

Temp1 target 100.0 °C
Temp1 actual 100.0 °C
Temp2 target 160.0 °C
Temp2 actual 166.0 °C

Adjustment Done

Temp Kit ID:

......................................................

Signature:

.....................................................

------------END----------------

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MB90 EN-43

Test data printout

Statistics printout

---MOISTURE DETERMINATION---

Type MB90
SNR 1234567
SW(Drying Unit) 1.30
SW(Terminal) 1.10.01

Company ABC
Department QC
Instrument ID 01

Method Name 01
Drying Prog Standard
Drying Temp 100 °C
Switch Off Auto

Start Weight 10.098 g
00:00:30 9.17 %MC
00:01:00 12.35 %MC
00:01:30 15.28 %MC
00:02:00 21.94 %MC

00:03:13 24.64 %MC

00:05:00 29:36 %MC
00:05:21 31.94 %MC
Total Time. 00:05:21
Dry Weight 6.873 g

Moisture Content 3.225 g

End Result . 31.94 %MC
Note
Signature:

………………………………………

Measurement end 19.Dec 2017 15:35

-----------------------END--------------------

--- STATISTICS DATA ---

Halogen Moisture Analyzer
Type MB90
SNR(Drying Unit) 1234567
SNR(Terminal)
SW(Drying Unit) 1.30
SW(Terminal) 1.10.01

Sample Number 6
Last Data 88.12 %MC
Mean Value 87.01 %MC
Standard Deviation 2.06 %MC
Minimum Value 83.47 %MC
Maximum Value 88.98 %MC

Signature:

………………………………………

---------------END------------------

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EN-44 MB90

10.1 RS232 Command Table

Output Formats

Data output can be initiated in one of two ways:

1. By pressing the Print button;

2. Using the Print Interval feature;

RS232 Commands

All communication is accomplished using standard ASCII format. Only the characters
shown in the following table are acknowledged by the Moisture Analyzer. Invalid
command response "ES" error indicates the Moisture Analyzer has not recognized
the command. Commands sent to the Moisture Analyzer must be terminated with a
Line Feed or carriage return-line line feed (CRLF). Data output by the Moisture
Analyzer is always terminated with a carriage return -line feed (CRLF).

RS232 COMMAND TABLE

Command

Character

Description

V

Print SR Version

TIM

Print Current Time

DAT

Print Current Date

10.2 RS232 Pin out

The following table illustrates the pin-out connections on the RS232 connector.

1

N/C 2 <–

Date Out (TXD)

3

–>

Date Out (RXD)

4&6

N/C

5

Ground

7

–>

Clear to send (CTS)

8

<–

Request to send (RTS)

9

N/C

Attention: The RS232 port (COM 1) is located near the

USB device port.

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MB90 EN-45

11. CARE AND MAINTENANCE

In this section, you will learn how to keep your Moisture Analyzer in good condition and how
to replace consumable parts.

11.1 Cleaning Interior/Exterior Components

To continue to obtain precise measurements, it is advisable to clean the interior components
at regular intervals. Please note the following instructions for cleaning your instrument.

WARNING: Electric Shock Hazard. Disconnect the equipment

from the power supply before cleaning.

Open the cover and remove the pan handle,
sample pan, draft shield, and heat shield from
the instrument before cleaning.

Use a lint-free cloth for cleaning.

Clean the exterior of the instrument and the
drying compartment components with a mild
cleaning agent. Although the housing is
extremely rugged and resistant to solvents,
never use abrasive cleaning agents or
solvents!

Ensure that no liquid enters the interior of the
instrument.

Replace the components after cleaning.

Cleaning Temperature Sensor and Protective
Glass

Check the protective glass and the temperature sensor
for debris which could impede the operation. If the glass
appears dirty, clean the surface facing the compartment
using a commercial glass cleaner. If the sensor is dirty,
clean using a mild cleaning agent.

WARNING: Do not spray the glass cleaner

directly on the glass. Instead, spray it on a
cloth and use the cloth to clean.

Draf t Shield

Pan Support

Heat Shield

Pan Handle

Sample Pan

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EN-46 MB90

Removing Glass for Cleaning

If the inside of the glass is dirty, lift up the heating
chamber, release the glass for cleaning by pressing both
sides of the glass holder.

Attention: Caution when releasing the glass from the

glass holder.

Reassemble after cleaning.

WARNING: Do not touch or clean the

Halogen heater.

Cleaning air inlet

The air inlet of the fan is located at the rear of the
instrument and its exterior should be cleaned from time to
time to free it from any dust deposits.

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MB90 EN-47

11.2 Replacing Power Line Fuse

If the instrument display fails to light after switching it on, check the power outlet first. If
power is available, and the instrument fails to operate, the power fuse may be open (blown).

WARNING: Electric Shock Hazard. Disconnect the

equipment from the power supply before cleaning.

Using a test pen, turn the fuse holder to the left
(counterclockwise) and remove the fuse.

Check the condition of the fuse. Replace blown fuse by
those of the same type with the same rated value (6.3A
250VAC for 100-120VAC power supply or 2.5A 250VAC for
200-240VAC power supply according to the heating
element).

Attention: If the fuse is good and power is available at the

outlet, the cord or instrument may be defective. Try a new
cord. If this does not work, the instrument should be sent
back for servicing.

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!

11.3 Troubleshooting

Problem: Under load

Probable cause:

-No pan support. Put the pan support on the correct position.

Problem: Over load

Probable causes:

-Put too many sample. Try to remove the sample from the sample pan.

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Problem: Display remains dark after switching ON.
Probable causes: — No line voltage
— Power cable not connected
— Power line fuse blown
— Instrument faulty

Problem: The measurement takes too long.
Probable cause: — You have selected an unsuitable switch-off criterion. Try
experimentation to arrive at a suitable switch-off criterion.

Problem: The instrument does not heat following the start up.
Probable cause: — The dryer is overheated and the thermal overload protection has
responded. For safe operation, the instrument is equipped with a
duplicate overheating protection device: The dryer unit has a
thermal overload protection device which switches off the heating
element. Contact your OHAUS dealer.

Problem: The measurements are not repeatable.
Probable causes:
— The samples are not homogeneous, i.e. they have different

compositions. The more inhomogeneous a sample, the larger the
amount of sample needed to obtain a repeatable result.

— You have selected a drying time that is too short. Extend the drying time

or select a suitable switch-off criterion “Weight loss per unit of time”.

—The sample does not come completely dry (e.g. owing to skin formation).

Dry the sample on quartz sand.

— You have selected a temperature that is too high and the sample has

oxidized. Lower the drying temperature.

— The sample boils and the splashed drops continuously change the

weight. Lower the drying temperature.

— Insufficient heating power as the protective glass is dirty. Clean the

protective glass.
— The temperature sensor is contaminated or faulty. Clean the
temperature sensor.
— The support on which the instrument is standing is not stable. Use a

stable support.
— The surroundings are very unstable (vibrations etc.).

11.4 Error detection

The Moisture Analyzer utilizes an audio tone to indicate an error. A normal button press or

entry results in a short, high pitched tone. When an entry is incorrect or an improper button is
pressed, a low pitched tone is emitted. There are no system error codes shown on the
displays under these conditions.

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MB90 EN-49

11.5 Service information

If the Troubleshooting section does not resolve or describe your problem, you will need to
contact an authorized Ohaus Service Agent. For Service assistance in the United States,
please call Aftermarket, Ohaus Corporation toll-free at [phone]. An Ohaus Product
Service Specialist will be available to help you.

11.6 Accessories

Description Ohaus Part No.

Reusable Sample Pan 80252478
Security Locking Cable 80850043
Printer SF40A 30045641
Sample Pans 90mm diameter 80850086
Glass Fiber Pads 80850087
In-use Cover 30284478
Temperature Calibration Kit 11113857

12. TECHNICAL DATA

12.1 Admissible ambient conditions

Indoor use only
Altitude: Up to 4000m
Temperature range: 10 ºC to 40 ºC
Atmospheric humidity: Maximum relative humidity 80% for temperatures up to 31 °C
decreasing linearly to 50% relative humidity at 40 °C.
Warm-up time: At least 30 minutes after connecting the instrument to the
power supply; when switched on from standby -mode, the
instrument is ready for operation immediately.
Voltage fluctuations: Mains supply voltage fluctuations up to ±10% of the nominal
voltage
Over voltage category: II
Pollution degree: 2
Power load: Max. 450 W during drying process
Power supply voltage: 100 V – 90 VAC 5A 50/60 Hz or
200 V – 240 VAC 2.5A 50/60 Hz
(depending on the model)
Power line fuse: 6.3A 250VAC for 100-120VAC power supply or

2.5A 250VAC for 200-240VAC power supply according

to the heating element

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EN-50 MB90

12.2 Specifications

Model

MB90

Capacity

90

Readability

0.01%/0.001g

Repeatability (Std Dev) (g)

0.18% (3g sample)

0.02% (10g sample)

Moisture range

0.01% to 100%

(0.01% to 1000% for regain mode)

Heating Element

Halogen

Drying Programs

Standard, Fast

Temp range

40°C - 200°C

Switch-off Criteria

Timed, Auto, manual

Adjustment

External adjustment mass - 50g

Power

100 V – 90 VAC 5A 50/60 Hz

200 V – 240 VAC 2.5A 50/60 Hz

Operating temperature range

50° to 104°F / 10° to 40°C

Display type

4.3’, QVGA, TFT touch screen

Display results

%moisture, %solids, %regain, time, temperature, weight, method
name, drying curve and statistics

Pan size (mm)

90

Interface

RS232, USB host, USB device,

Adjustable Feet and Level

Yes

Dimensions (WxHxD) (cm)

21x18x35

Net wt. (kg)

5.23

Shipping wt. (kg)

8.35

13. COMPLIANCE

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

Marking

Standard

This product conforms to the EMC directive 2004/108/EC, the Low Voltage
Directive 2006/95/EC. The complete Declaration of Conformity is available
online at www.ohaus.com.

AS/NZS 61000.6.1, AS/NZS 61000.6.3

CAN/CSA C22.2 No. 61010-1, UL Std No. 61010-1

FCC 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 rad io 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.

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MB90 EN-51

Please note that changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.

Industry Canada Note

This Class A digital apparatus complies with Canadian ICES-003.

ISO 9001 Registration

In 1994, Ohaus Corporation, USA, was awarded a certificate of registration to ISO 9001 by
Bureau Veritus Quality International (BVQI), confirming that the Ohaus quality management
system is compliant with the ISO 9001 standard’s requirements. On May 21, 2009, Ohaus
Corporation, USA, was re-registered to the ISO 9001:2008 standard.

Disposal

In conformance with the European Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE) this device may not be disposed of in domestic
waste. This also applies to countries outside the EU, per their specific
requirements.

The Batteries Directive 2006/66/EC introduces new requirements from
September 2008 on removability of batteries from waste equipment in EU
Member States. To comply with this Directive, this device has been designed for
safe removal of the batteries at end -of-life by a waste treatment facility.

Please dispose of this product in accordance with local regulations at the
collecting point specified for electrical and electronic equipment.

If you have any questions, please contact the responsible authority or the
distributor from which you purchased this device.

Should this device be passed on to other parties (for private or professional use),
the content of this regulation must also be related.

For disposal instructions in Europe, refer to www.ohaus.com/weee
Thank you for your contribution to environmental protection.

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