Sartorius MA45 Operating Instructions Manual

Operating Instructions

Sartorius Moisture Analyzer

Model MA45 Electronic Moisture Analyzer

98648-010-37

The MA45 Moisture Analyzer can be used for quick and reliable determination of the moisture content of materials of liquid, pasty and solid substances using the thermogravimetric method.

The moisture analyzer saves work and speeds up your routine procedures through the following features:

– Fast analysis time, high repeatability,

and gentle and uniform sample drying due to the round ceramic IR heating element

– Choice of fully automatic, semi-auto-

matic or timer modes for shutoff parameters

– Options for storing up to 3 user-defined

drying programs

The following features make the moisture analyzer ideal for use as an inspection, measuring and test instrument in process control and incoming inspection:

– Compact design, including base,

requires little space

– Hinged sample chamber cover with

wide-angle opening for easy access

– Convenient and reliable control of the

accuracy of the moisture analyzer according to the DIN/ISO standards by using the external 30 g calibration weight and a temperature adjustment set

– ISO/GLP-compliant recording capability

with pre-configured formats for printouts of analysis results and records of temperature and weighing system adjustments

– Password-protected drying parameters

– Comprehensive range of accessories,

including dust cover for the keypad, glass fiber filters, set of aluminum panels for replacing the glass panels over the heating element, external printer, PC software for recording results and displaying the drying curve

The moisture analyzer meets the highest requirements placed on the accuracy and reliability of weighing results through the following features:

– Excellent readability under any lighting

conditions; backlit display minimizes reading errors

– Removable pan draft shield makes it

easy to clean the sample chamber and protects the weighing system from debris

Symbols

The following symbols are used in these instructions:

§ indicates steps you must perform

$ indicates steps required only under

certain conditions

> describes what happens after you have

performed a certain step

– indicates an item in a list

! indicates a hazard

For technical advice on applications:

Phone: +49.0.551.308.3160 Fax: +49.0.551.308.3495

Intended Use

2 Intended Use

3 Contents

4 Warning and Safety Information

5 Getting Started 5 Instructions for Recycling 5 Equipment Supplied 6 General View of the Moisture Analyzer 7 Connecting the Moisture Analyzer

to AC Power 8 Leveling the Moisture Analyzer 8 Turning On the Analyzer; Opening and

Closing the Sample Chamber

9 Operating Design 9 Keys

10 Operation: Analysis and Test Functions 11 Menu Operation 11 Data Output 12 Error Codes 12 Saving Data

13 Configuring the Moisture Analyzer 13 Setting the Language 14 Setting the Device Parameters 14 Entering or Changing the Password 17 Device Parameters (Overview) 18 Device Information

19 Basics of Moisture Analysis 21 Preparation 21 – Adjustment to an Existing

Measuring System

22 – Preparing a Sample

24 Operating the Moisture Analyzer 24 Setting the Drying Parameters 24 – Drying Parameters (Overview) 27 Example 31 “isoTEST” Calibration/

Adjustment Functions

31 Heater Adjustment 31 Weighing System Settings 35 Hardware Tests 37 Data Output 37 Output to the Moisture Analyzer Display 39 Interface Port 40 Data Output Format 40 Data Input Format 42 Pin Assignment Chart 43 Cabling Diagram

44 Error Codes

46 Care and Maintenance 46 Service 46 Repairs 46 Cleaning 47 Safety Inspection

48 Overview 48 Specifications 49 Accessories (Options) 50 C Marking 51 Index

Appendix

Entering the General Password Brief Instructions

This moisture analyzer complies with the European Council Directives as well as international regulations and standards for electrical equipment, electromagnetic compatibility, and the stipulated safety requirements. Improper use or handling, however, can result in damage and/or injury.

To prevent damage to the equipment, read these operating instructions thoroughly before using your moisture analyzer. Keep these instructions in a safe place.

Follow the instructions below to ensure safe and trouble-free operation of your moisture analyzer:

! Use the moisture analyzer only for per-

forming moisture analysis of samples. Any improper use of the analyzer can endanger persons and may result in damage to the analyzer or other material assets

! Do not use this moisture analyzer in a

hazardous area/location; operate it only under the ambient conditions specified in these instructions

– The moisture analyzer may be operated

only by qualified persons who are familiar with the properties of the sample to be analyzed

! Make sure before getting started that

the voltage rating printed on the manufacturer’s label is identical to your local line voltage (see the section “Connecting the Moisture Analyzer to AC Power” in the chapter entitled “Getting Started”)

– The device comes with a power supply

that has a grounding conductor

– The only way to switch the power off

completely is to unplug the power cord

– Position the power cord so that it

cannot touch any hot areas of the moisture analyzer

– Use only extension cords that meet

the applicable standards and have a protective grounding conductor

– Disconnecting the ground conductor

is prohibited

– Connect only Sartorius accessories and

options, as these are optimally designed for use with your moisture analyzer

– Protect the moisture analyzer from

contact with liquid

– If there is visible damage to the mois-

ture analyzer or power cord: unplug the equipment and lock it in a secure place to ensure that it cannot be used for the time being

! Clean your moisture analyzer according

to the cleaning instructions only (see “Care and Maintenance”)

Do not open the analyzer housing. If the seal is broken, this will result in forfeiture of all claims under the manufacturer’s warranty.

In case you have any problems with your moisture analyzer:

$ contact your local Sartorius office,

dealer or service center

Warning: Severe Burns!

– When setting up the moisture analyzer,

leave enough space to prevent heat from building up and to keep your analyzer from overheating: – leave 20 cm (about 8 inches) around

the moisture analyzer

– leave 1 m (3 ft.) above the device

– Do not put any flammable substances

on, under or near the moisture analyzer, because the area around the heating unit will heat up

– Be careful when removing the sample

from the chamber: the sample itself, the heating unit and the sample pan used can still be extremely hot

– Prevent excess heat build-up around

the analyzer

Hazards for persons or equipment posed by using specific samples:

Fire Explosion

– Flammable or explosive substances

– Substances that contain solvents

– Substances that release flammable

or explosive gases or vapors during the drying process

In some cases, it is possible to operate the moisture analyzer in an enclosed nitrogen atmosphere to prevent the vapor released during drying from coming in contact with oxygen in the surrounding atmosphere. Check on a case-to-case basis whether this method can be used, because installation of the analyzer in too small an enclosed space can affect its functions (for instance, through excessive heat build-up within the analyzer). When in doubt, perform a risk analysis.

The user shall be liable and responsible for any damage that arises in connection with this moisture analyzer.

Poisoning Caustic burns

– Substances containing toxic or caustic

or corrosive components: These may only be dried under a fume hood. The value for the “lower toxic limit“ in a work area must not be exceeded.

Corrosion:

– Substances that release aggressive

vapors during the heating process (such as acids). In this case we recommend that you work with small sample quantities. Otherwise, vapors can condense on cold housing parts and cause corrosion.

The user shall be liable and responsible for any damage that arises in connection with this moisture analyzer.

Warning and Safety Information

The moisture analyzer consists of a heating unit, a weighing system, and a display and control unit. In addition to the socket for AC power (mains supply), it also has an interface port for connecting peripheral devices, such as a PC, an external printer, etc.

Storage and Shipping Conditions

Allowable storage temperature: 0 ...+40°C (+32°F...+104°F)

Do not expose the moisture analyzer unnecessarily to extreme temperatures, moisture, shocks, blows or vibration.

Unpacking the Moisture Analyzer

§ After unpacking the moisture analyzer,

check it immediately for any visible damage as a result of rough handling during shipment

$ If any sign of damage is visible, proceed

as directed in the chapter entitled “Care and Maintenance,” under the section on “Safety Inspection”

It is a good idea to save the box and all parts of the packaging until you have successfully installed your moisture analyzer. Only the original packaging provides the best protection for shipment. Before packing your moisture analyzer, unplug all connected cables to prevent damage.

Instructions for Recycling the Packaging

To ensure adequate protection for safe shipment, your moisture analyzer has been packaged to the extent necessary using environmentally friendly materials. After successful installation of the moisture analyzer, you should return this packaging for recycling because it is a valuable source of secondary raw material. For information on recycling options, including recycling of old weighing equipment, contact your municipal waste disposal center or local recycling depot.

Getting Started

Warranty

Do not miss out on the benefits of our full warranty. Please contact your local Sartorius office or dealer for further information. If available, complete the warranty registration card, indicating the date of installation, and return the card to your Sartorius office or dealer.

Equipment Supplied

The equipment supplied includes the components listed below:

– Moisture analyzer

– Power cord

– Pan support

– Pan draft shield

– Dust cover for keypad

– 80 disposable aluminum sample pans

– 1 pair of forceps

Installation Instructions

The moisture analyzer is designed to provide reliable results under normal ambient conditions in the laboratory and in industry. When choosing a location to set up your moisture analyzer, observe the following so that you will be able to work with added speed and accuracy:

– Set up the moisture analyzer on a

stable, even surface that is not exposed to vibrations, and level it using the four leveling feet

– Avoid placing the analyzer in close

proximity to a heater or otherwise exposing it to heat or direct sunlight

– Avoid exposing the moisture analyzer to

extreme temperature fluctuations

– Protect the moisture analyzer from

drafts that come from open windows or doors

– Keep the moisture analyzer protected

from dust, whenever possible

– Protect the moisture analyzer from

aggressive chemical vapors

– Do not expose the analyzer to extreme

moisture

– Make sure to choose a place where

excessive heat cannot build up. Leave enough space between the moisture analyzer and materials that are affected by heat.

Conditioning the Moisture Analyzer

Moisture in the air can condense on the surfaces of a cold moisture analyzer whenever it is brought into a substantially warmer place. If you transfer the moisture analyzer to a warmer area, make sure to condition it for about 2 hours at room temperature, leaving it unplugged from AC power. Afterwards, if you keep the moisture analyzer connected to AC power, the continuous positive difference in temperature between the inside of the moisture analyzer and the outside will practically rule out the effects of moisture condensation.

Setting up the Moisture Analyzer

§ Position the components listed below in

the order given:

– Dust cover over the keypad

– Pan draft shield

– Pan support; turn to the left or right,

press slightly until it stops and snaps into place

– Disposable sample pan

No. Designation Order no. for replacement

1 Hinged cover with heating

element 2 Disposable sample pan 6965542 (80 pcs.) 3 Pan support 69MA0092 4 Pan draft shield 69MA0093 5 Display 6 Keypad 7 On/off key 8 CF key (clear function) 9 ‘Enter’ key (confirm)

No. Designation Order no. for replacement

10 ‘Down/Back’ key 11 ‘Up/Forward’ key 12 Print key 13 Leveling foot 14 Interface port 15 Power socket

Not shown: Dust cover for keypad 6960MA02 Forceps 69MA0072

§ Check the voltage rating and the plug design

$ The heating unit of the moisture analyzer has been factory-set to 230 V or 115 volts for

technical reasons. The voltage has been set as specified on your order. The voltage setting is indicated on the manufacturer’s label (see the bottom of the analyzer), for example: – 230 volts: MA45-...230.. – 115 volts: MA45-...115..

! If they do not match:

Do not operate your moisture analyzer; contact your local Sartorius office or dealer.

Use only

– Original power cords

– Power cords approved by a certified electrician/Sartorius service technician

– If you need to connect an extension cord:

Use only a cable with a protective grounding conductor

§ Connecting the moisture analyzer, rated to Class 1, to AC power (mains supply):

The moisture analyzer must be plugged into a properly installed wall outlet which has a protective grounding conductor (PE)

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 Sartorius AG could void the user’s authority to operate the equipment.

Safety Precautions

If you use an electrical outlet that does not have a protective grounding conductor, make sure to have an equivalent protective conductor installed by a certified electrician as specified in the applicable regulations for installation in your country. The protective effect must not be negated by using an extension cord without a protective grounding conductor.

Connecting Electronic Devices (Peripherals)

§ Make absolutely sure to unplug the moisture analyzer from AC power before you connect

or disconnect a peripheral device (printer or PC) to or from the interface port.

Warmup Time

To deliver exact results, the moisture analyzer must warm up for at least 30 minutes after initial connection to AC power or after a relatively long power outage. Only after this time will the moisture analyzer have reached the required operating temperature.

Connecting the Moisture Analyzer to AC Power

Leveling the Moisture Analyzer

Purpose:

– To compensate for unevenness at the place of installation

– This is necessary especially for testing liquid samples that need to be at a uniform level

in the disposable sample pan

Always level the moisture analyzer again any time after it has been moved to a different location.

§ Extend or retract the front and/or rear leveling feet as needed to adjust the moisture analyzer

Installing the Aluminum Panels (Optional)

! To prevent burns, allow the glass panels to cool sufficiently before removing them

! Do not handle the aluminum panels with oily or greasy fingers

!Do not scratch the aluminum panels; do not use abrasive or corrosive substances to clean

the aluminum panels

§ Remove the 6 screws and remove the panel retainer

§ Remove the glass panels

§ Position the aluminum panels in the retainer

§ Fasten the aluminum panels with the retainer and screws

Turning On the Analyzer; Opening and Closing the Sample Chamber

§ To turn on the analyzer: Press the e key

§ When opening or closing the sample chamber: Do not release the cover until it is in the fully

open or fully closed position

Setting the Language

– See “Setting the Language” in the chapter entitled “Configuring the Moisture Analyzer”

Operation of the moisture analyzer follows a standardized “philosophy” which is described below.

Operating Design

y Down/Back

When the operating menu is active: Shows the next menu item on the current menu level When entering alphanumeric characters: Moves the cursor back to the previous character (see the next column for character sequence)

x Up/Forward

When the operating menu is active: Shows the previous menu item on the current menu level When entering alphanumeric characters: Moves the cursor forward to the next character (see the next column for character sequence)

r Print

Outputs the displayed data or the active data record via the interface port to the external printer

Entering Letters, Special Characters and Numbers:

When the character at the cursor position is blinking, you can use the y and x keys to change the character. The cursor “moves” through the available characters in the following sequence:

0 1 2 3 4 5 6 7 8 9 . - + / * = < > ( ) : ? ! $ & % # @ Z Y X W V U T S R Q P O N M L K J I H G F E D C B A (Space)

To enter a character: Position the cursor as desired and press the u key

To confirm a character string: After entering the last character, press and hold the u key for at least two seconds

To delete a character: Enter a “space”

Keys

The keys have following functions:

e On/off key

Turns the moisture analyzer on/off. The moisture analyzer remains in standby mode

c Clear Function

Cancels application functions, interrupts calibration/adjustment routines When the operating menu is active: Closes active submenu and returns to next higher menu level

u Enter

During moisture analysis: Activates the selected function (e.g., tare, start, cancel) When the operating menu is active: Confirms the setting or input displayed

Operation

There are two fundamentally different types of display:

– display for analysis and test functions

– display for menu parameter settings

(e.g., Setup or Program menu)

Analysis and Test Functions

This display is divided into nine sections.

Example: Moisture Analysis:

Drying Program Info/Status Line:

This line shows the following information:

– Selected drying program (e.g., P1)

– Configured drying temperature

(e.g., 105

– Criterion for end-point recognition

(e.g., Autom.)

– Current temperature

– Elapsed drying time

Busy Symbol:

The J symbol is shown here when the moisture analyzer is processing a function activated by pressing a key.

Plus/Minus Sign:

A plus or minus sign (F or H) is shown here for the weight value or a calculated value (such as a percentage).

Bar Graph:

The bar graph is shown during moisture analysis if the “Initial Weight” option in the drying program is set to On.

The following symbols may be displayed here:

Bar graph showing interval markers

- Target value –20%

= Target value

+ Target value +20%

Measured Value:

This section shows the weight or calculated value.

Unit:

When the weighing system reaches stability, the weight unit or calculation unit is displayed here.

Graphic Symbols:

The symbols shown here indicate the current operating status of the moisture analyzer. Example:

Drying in progress

Print Symbol:

During the printout of the analysis results and other data, the following symbol is shown here:

P Printing

Function Line:

This line indicates the functions that can be activated by pressing “Enter” (e.g., Setup menu, Program menu, “Tare”, “Start”, or “Cal” (calibration)).

If an error occurs, the resulting error code or message overwrites this line.

P1 105oC Auto.

Drying program/Test status line Bar graph

Measured value/result

Function line

Plus/minus sign Busy symbol

Weight

unit

display

Graphic symbol

Print symbol

0092

PROGRAM

TARESETUP

Menu Operation

This display is divided into two sections.

Line for Operating Status:

The operating status line indicates the function of the current screen page. In the Setup menu, the current menu path is shown here.

Example for Setup, Language:

Input and Output Window:

This window contains either detailed information (e.g., on the drying program) or a select list. A selected item is displayed inversely (white letters on a black background). You can also enter letters, numbers, and special characters in this window when an input field is active.

Example for Setup, Language:

The following symbol can also appear the input/output window:

o indicates the currently active menu

setting

SETUP SPRACHE

oDeutsch

English U.S.-Mode Français

Parameter Settings

The MA45 has an operating menu for finding and setting parameters. Each menu has several levels.

Example: Working with the Setup Menu

First of all, you need to find the menu item for the parameter you wish to configure:

§ Press the x and y keys until SETUP is highlighted, then press u to confirm

§ Use the x and y keys to move back and forth between menu items on a given level

§ To select an item or open a submenu: Press the u key

Parameter Settings:

§ Press the x and y keys, repeatedly if needed, until the desired parameter is highlighted (inverse display)

§ To select the parameter: Press u

Now you can configure the desired setting.

To select a parameter setting:

§ Press the x and y keys, repeatedly if needed, until the desired setting is highlighted (inverse display)

To enter alphanumeric characters:

§ Press the x and y keys, repeatedly if needed, until the desired character is displayed (see page 9 for details on alphanumeric input) and press u to confirm

§ Confirm the setting: Press the u key

To go back to the previous (higher) menu level:

§ Press the c key

Exit the Setup menu: Press the c key

Data Output

The MA45 is equipped with an interface port for connecting either

– a printer, or

– a computer

Printer

The data format for output to an external printer is pre-configured for generating ISO/GLP-compliant printouts.

ISO: International Organization for Standardization

GLP: Good Laboratory Practice

See “Data Output Functions” in the chapter entitled “Operating the Moisture Analyzer” for a detailed description of data output options.

Interface Port

You may choose to connect a computer rather than a printer to the interface port.

See “Data Output Functions” in the chapter entitled “Operating the Moisture Analyzer” for a detailed description of data output options.

Line for Operating Status

Input and Output Window

SETUP LANGUAGE oDeutsch English U.S.-Mode Français

Error Codes

If you press a key that has no function, or which is blocked at a certain point in an application program, the error is indicated as follows:

– a double-beep is sounded as an acoustic

signal if the key has no function

– an error message indicates invalid input

– an error code or error message indicates

incorrect operation

The response to operator errors is identical for all operating modes. See the chapter entitled “Error Codes” for detailed explanations of the error codes and messages.

Saving Data

Storing Parameter Settings

The most recent configurations of Setup menu parameters and drying programs are active when you switch on the moisture analyzer. You also have the option of restoring the factory settings at any time (see below).

Protecting Parameter Settings

You can assign passwords to block access to:

– user-defined drying programs

– the device parameter menu

– isoTEST functions

If no password has been assigned, anyone can access and change the Setup > Device menu and the userdefined drying programs without entering a password.

If you assign a password and then forget what the word is, you can use the General Password (see Appendix) to access these menus.

Purpose

You can configure your moisture analyzer to meet individual requirements by entering user data and setting selected menu parameters in the Setup menu.

The Setup menu is divided into the following sections:

– Language

– Device parameters

– isoTEST

– Device information

Configuring the Moisture Analyzer

Setting the Language

You can choose from 5 languages for the display:

– German

– English (factory setting)

– U.S. Mode

(English with U.S. date/time format)

– French

– Italian

– Spanish

Example: Selecting the language: “U.S. Mode”

Step Key (or Instruction) Display/Printout

1. Select SETUP in the Function line x or y and confirm u

2. Confirm Language menu item u

3. Select “U.S. Mode” y

4. Confirm u

5. Exit Setup cc

SETUP

Language

Device parameters isoTEST Device information

SETUP LANGUAGE Deutsch

oEnglish

U.S.-Mode Français

P1 105oC Auto.

0000

PROGRAM

TARESETUP

Setting the Device Parameters (DEVICE)

Purpose

Device configuration, i.e., to meet individual requirements by selecting predefined menu parameters in the Setup menu. You can block access to the menu by assigning a password.

Features

The device parameters are combined in the following groups:

– Password to the Setup menu

– Interface

– Display contrast

– Acoustic signal

– Factory settings

You can display, enter or change the following parameters:

Password

– Password for access to the device

parameters and isoTEST functions in the Setup menu, and to drying programs in the Program menu

Interface

– SBI operating mode

Simple record of analysis results for PC or external printer, factory setting for the YDP03-0CE printer Format: baud rate, number of data bits, parity, stop bits, handshake

– xBPI operating mode

Function-oriented interface with transparent data transmission Network address: enter a number from 0 to 31; factory setting: 0

Display contrast

– Contrast/angle of the display (enter a

number from 0 to 4; factory setting: 2)

Acoustic signal

– Acoustic signal on or off

Factory Settings

Parameters: The factory-set configurations are identified by an “ο” in the list starting on page 17.

Preparation

Display existing device parameters

§ Select the Setup menu:

Use the x or y key to select SETUP in the Function line and press u to confirm

> SETUP is displayed:

§ Select Device parameters: Press the

y key and press u to confirm

If no password has been assigned, anyone can access “SETUP: Device parameters” without entering a password

If a password has been assigned:

> The password prompt is displayed

$ If the Setup menu is protected by a

password: Use the x and y keys to enter the password (see page 9 for details) and press u to confirm

§ Confirm the password and display

“Device parameters”: Press the u key

> Device parameters are displayed:

Entering or Changing the Password

– The password (up to 8 characters)

protects the following functions: – Setup: Device parameters – Program: Drying programs – Setup: isoTEST functions

§ Display Device parameters (see

“Preparation > Display existing device parameters” above)

§ Write down the password here for easy

reference:

Password = . . . . . . . . . . . . . . . . . . . . . .

If you assign a password and then forget what it is:

$ Enter the General Password

(see Appendix)

$ Confirm the password and display

device parameters: Press the u key

> Parameters are displayed (see above)

§ Configuring device parameters:

Select “Password” (if configured) and confirm: Press the u key

> Password: and any existing password

are displayed:

§ New password: Use the x and y

keys to enter the new password (up to 8 characters) and press u to confirm If no entry is shown under “Password”, then no password has been stored

§ To confirm your input:

Press the u key

§ Exit the Setup menu:

Press the c key twice

Additional Functions

Print out parameter settings:

§ If “Device parameters” are displayed:

Press the r key

> Printout (example)

Lines with more than 20 characters are truncated

--------------------

SETUP

DEVICE

--------------------

Interface

SBI

Baudrate

1200 baud

Number of data bi

7 data bits

Parity

Odd

Number of stop bi

1 stop bit

Handshake mode

Hardware handshake a

fter 1 char

Display contrast

Acoustic signal

--------------------

Reset the device parameters to the factory settings:

§ Select the Setup menu:

Use the x or y key to select SETUP in the Function line and press u to confirm

> SETUP is displayed:

§ Select Device parameters:

Press the y key and press u to confirm

$ If a password has been assigned: enter

the password as described above

§ Confirm the password and display

“Device parameters”: Press the u key

> Device parameters are displayed

§ Select Factory settings:

Press the y key 4 times

§ Confirm Factory settings:

Press the u key

$ To cancel the “Reset” operation at

this point: Press the c key

§ Select Yes and confirm.

Press the y key and then press the u key

§ Exit the Setup menu:

Press the c key three times

Example:

Set the display contrast to “3”

Step Key (or Instruction) Display/Printout

1. Select SETUP in the Function line x or y

2. Confirm SETUP u

3. Select Device parameters y

4. Confirm Device parameters u

5. Select Display contrast 2 ƒ y

6. Confirm Display contrast u

7. Select setting 3 x or y

(repeatedly, if necessary)

8. Store setting u

9. Exit the Setup “Device parameters” menu c three times

P1 105oC Auto.

0092

PROGRAM

TARESETUP

SETUP DEVICE CONTRAST 0 1

SETUP DEVICE CONTRAST 0 1 o2 3

SETUP DEVICE CONTRAST 0 1 2

P1 105oC Auto.

0000

PROGRAM

TARESETUP

Device Parameters (Overview)

ο Factory setting √ User-defined setting

Setup – Password: empty Enter 8 Device characters max. parameters

Interface ο SBI Baud rate 150 baud

300 baud

ο 1,200 baud

2,400 baud 4,800 baud 9,600 baud 19,200 baud

Number of data bits ο 7 bit

)

8 bit

Parity None

)

ο Odd

Even

Number of stop bits ο 1 stop bit

2 stop bits

Handshake Software handshake mode ο Hardware handshake

1 character after CTS

xBPI Network address: 0 Enter any number from 0 to 31

Display contrast 0

ο 2

3 4

Acoustic signal ο On

Off

Factory settings No

Yes

) not if parity is set to “None”

) only with 8 (not 7) data bits

Factory setting

Device Information

Purpose

Display of device information

Display Device Information

§ Select the Setup menu:

Use the x or y key to select SETUP in the Function line and press u to confirm

> SETUP is displayed:

§ Select Device information:

Press the y key three times and press u to confirm

> Device information is displayed

§ Exit the Setup menu:

Press the c key twice

§ Print device information:

Press the r key

> Printout (Example)

--------------------

13.08.2001 13:02 Model MA45-000230V Ser. no. 13206969 Ver. no. 01-43-01

(Operating program version)

------------------SETUP

INFO

-------------------Version no.:

01-43-01

(Operating program version)

W.sys.ver.#:

00-25-03

(Wgh.sys.program version)

Model:

MA45-000230V

Serial no.:

13206969

--------------------

§ Return to Setup menu:

Press the c key

§ Exit the Setup menu:

Press the c key twice

> Previous status is restored

SETUP INFO Versionno.: 01-43-01 W.sys.ver.#: 00-25-03 Model: MA45 Serial no.: 90706913

Purpose

The MA45 moisture analyzer can be used for quick and reliable determination of the moisture content of materials of liquid, pasty and solid substances using the thermogravimetric method.

Basics of Moisture Analysis

Material

The moisture of a material is often mistakenly equated with its water content. In fact, the moisture of a material includes of all the volatile components which are given off when the sample is heated, no matter the kind of material. Among such volatile substances are:

– water – fats – oils – alcohols – organic solvents – flavorings – products of decomposition

(when a sample is overheated)

There are many methods for determining the moisture content of a substance. Basically, these methods can be divided into two categories: absolute and deductive methods.

When absolute methods are used, the moisture content is directly determined (for example, as a weight loss registered during the drying routine). These methods include oven drying, infrared drying, and microwave drying. All three of these methods are thermogravimetric.

When deductive methods are used, the moisture content is indirectly determined. A physical property related to the moisture in the substance is measured (e.g., absorption of electromagnetic rays). These methods include Karl-Fischer titration, infrared spectroscopy, microwave spectroscopy, etc.

Thermogravimetry is the process of determining the loss of mass that occurs when a substance is heated. In this process, the sample is weighed before and after being heated, and the difference between the two weights determined is calculated.

In a conventional drying oven, circulating hot air warms the sample from the outside toward the inside. Efficiency is lost during drying because as the moisture evaporates, it cools the sample surface.

By contrast, infrared rays (IR rays) penetrate a sample without being impeded. Having reached the interior of a sample, they are converted into heat energy, which stimulates evaporation, thus drying the sample.

IR rays

thermal energy

substance

IR-Strahlung

Wärmeenergie

Substanz

A small part of the IR rays is reflected from the surface of the substance. The quantity of reflected IR rays depends to a great extent on whether the substance is light or dark-colored.

Dark Substance Light Substance Low Reflection High Reflection

How the rays penetrate the sample depends on the sample’s degree of light-transmitting capacity. If the degree of light-transmitting capacity is low, the rays can penetrate only the uppermost layers of the sample. The heat conductivity of the sample dictates the degree to which the heat can be transmitted to the underlying layers. The higher the conductivity, the faster and more uniformly the substance is heated.

The substance should be applied to the sample pan in a thin, even layer. A height of approximately 2 – 5 mm for 5 – 15 g substance weight has proved to be ideal. Otherwise, the sample will not be dried completely or the analysis time will be unnecessary extended, a crust/skin will form on the surface of the sample or the sample will scorch, and the analysis results obtained will not be reproducible, and therefore cannot be used.

Incorrect Application of a Sample

When preparing a substance for analysis, you should use methods that do not generate heat so that the sample does not lose moisture before it is analyzed.

Perform initial analysis of a new substance to test how the IR rays are absorbed by the sample and converted into heat. A printout of the intermediate values of the drying process (see page 25) provides you with this information at an early stage.

Experience has shown that the temperature setting selected for infrared drying is usually lower than the temperature setting used when working with a drying oven.

In many cases, the fully automatic shutoff mode will meet your requirements. If the final result is higher or lower than expected, try varying the temperature setting before resorting to a different shutoff parameter.

When analyzing the samples that lose their moisture only very slowly or when operating a cold moisture analyzer, the fully automatic mode may end the drying routine too early, if it does not detect any analyzable progress in the drying routine under these conditions. In this case, preheat the moisture analyzer for 2–3 minutes before starting the drying routine, or select a different shutoff parameter.

The Sartorius Moisture Analyzer Applications Guide will provide you with important information on the use of your moisture analyzer.

Preparation

Before drying a sample, you must carry out the following preparations:

– Adjustment to the available measuring

system (if required)

– Sample preparation

– Setting the drying program parameters

Adjustment to an Existing Measuring System

A moisture analysis method often replaces another drying method (e.g., oven drying method), because it is simple to use and requires shorter analysis time. In this case, you should adapt this method to that of the moisture analyzer in order to obtain values comparable to those yielded by your standard reference method.

§ Perform parallel measurements: take a fresh sample and divide it in half

§ Determine the moisture content of the first half using your standard method of analysis

§ Analyze the second half of the sample in the moisture analyzer.

Use the following settings: – fully automatic mode for the shutoff parameter – lower temperature settings than for the oven drying method – temperature setting for organic substances: 80–100°C – temperature setting for inorganic substances: 140–160°C

$ If the result of the second analysis does not correspond to that of the first:

– first, repeat the analysis using a different temperature setting – then use the semi-automatic mode for the shutoff parameter (for example,

with a different loss rate per 24 s)

$ Vary the shutoff parameter, if required:

– Increase end-point recognition: set the parameter to 2 mg / 24 s or 1 mg / 24 s – Decrease end-point recognition: set the parameter to 10 mg / 24 s or 20 mg / 24 s

Preparing a Sample

Selecting a Sample

§ Select a representative part of the whole substance as a sample

– a representative number of individual samples for quality control – samples which indicate a trend are sufficient for in-process control

$ Homogenize the product before a sample is taken, if required, by:

– mixing or stirring, – taking several samples from different areas of the product, or – taking several samples at defined intervals

§ Take only one sample at a time for a given analysis and prepare it as quickly as possible.

In this way, it will not lose or gain moisture as a result of the ambient conditions.

$ If you need to analyze several samples at a time, the samples must be sealed in air-tight

containers, in order to ensure that the storage conditions do not alter the state or condition of the samples: – Warm or highly volatile substances lose their moisture very quickly. – If you store the samples in a container, the moisture can condense on the walls

of the container.

– If the container is too big and not filled completely, the sample can exchange its

moisture with the air remaining in the container.

$ Mix the condensed moisture back in with a sample, if necessary.

Preparing a sample

§ When crushing a sample, avoid any contact with heat: heat results in moisture loss.

§ Crush a sample with

– a pestle – a shredder (see below)

For liquids containing solids, use – a glass stirrer – a spoon or – a magnetic stirrer.

$ Use an appropriately designed tool for shredding a sample.

Using disposable sample pans

§ Use only Sartorius disposable sample pans (inner diameter = 92 mm). Reusing sample

pans leads to poor reproducibility of results for several reasons:

– after cleaning, sample residues can still remain on the pan

– residues from cleaning agents can evaporate during the next moisture analysis

– if scratches and grooves are inflicted during cleaning, the hot, rising air produced

during the drying process acts on these surfaces, resulting in a more pronounced buoyancy

Applying a Sample to the Sample Pan

§ Apply the sample to the sample pan in a thin, even layer

(height: 2 to 5 mm, weight: 5 to 15 g); otherwise:

– a sample applied unevenly will result in a non-uniform distribution of heat – a sample will not be dried completely – the analysis time will be unnecessarily extended – the sample burns or a crust/ skin forms on its surface as a result of a very thick layer – the crust makes it difficult or impossible for moisture to escape from the sample during

the drying process

– uncertain and unknown quantity of moisture remains in the sample

§ Apply liquid samples, pasty samples or samples that can melt to a glass fiber filter

(order no. 6906940); you will obtain the following advantages:

– uniform distribution due to the capillary effect – liquids prevented from beading together and forming drops – with larger surfaces, the moisture can evaporate faster – considerably more convenient than the “sea-sand method”

When drying samples containing sugar, a crust or skin can form and seal the surface. A glass fiber filter is especially helpful in such cases. The moisture can evaporate downwards through the surface of the filter. You can prevent or limit the crust/ skin formation if you place the glass fiber filter on top of the sample.

§ Cover solid, heat-sensitive samples with a glass fiber filter (order no. 6906940); you will

obtain the following advantages:

– gentle heating, because of the sample surface is shielded from excessive heat – higher temperature setting can be selected – uniformity of the sample surface – fast evaporation of the moisture – excellent reproducibility for samples containing fat

Avoiding the Formation of Crust/Skin

You can add “solvents” to the sample to prevent the formation of crust/skin during the analysis runs. The weight of a solvent you apply to the sample will not influence the final result of an analysis.

§ Once you have closed the sample chamber, open it again within 2 seconds after you hear

a beep tone.

§ Apply a solvent to the sample

§ Close the sample chamber and start the analysis run as usual

Setting the Drying Parameters

Purpose

Adapt the moisture analyzer to the special requirements of products. Parameters can be configured individually for each program.

Drying Parameters (Overview)

ο Factory setting √ User-defined setting

Program ο P1 memory P2 (PROGRAM) P3 Heating program ο Standard drying Temperature 105°C 40...230°C

MA30 mode Temperature 105°C 40...160°C

)

Standby ο Off temperature

) On Temperature 40°C 40...100°C

Initial weight ο Off

On Target 5.0 g 0.2 g...35.0 g

Start analysis With stability

when Enter pressed

ο Without stability

when cover is closed

End of analysis ο Fully automatic

Semi-automatic Loss/24 s 5 mg 1...20 mg Timer mode Time 15.0 min 0.1...99.9 minutes

Display mode ο Moisture (%L)

Dry weight (%R) Ratio (%LR) Residual weight (g) Residual weight (g/kg)

Print ο Off intermediate results On Interval 0.1 min 0.1...10.0 minutes

Factory settings No

Yes

) Marked in Info/Status line by an asterisk (“*”); e.g. “*105oC”

) Not when using the “MA30 mode” heating program

Operating the Moisture Analyzer

Factory setting

Features

Number of Drying Programs

MA45: 3 programs

Programs are listed according to program number.

Heating Programs

To perform a moisture analysis of a substance, you can choose between two heating programs:

– Standard drying – MA30 mode

Standard drying: With the standard program, you need to enter the final temperature.

If you enter a target temperature of over 200°C, the moisture analyzer heats to the target and then adjusts to 200°C in 5 phases, from the 10th to the 30th minute.

MA30 Mode: The moisture analyzer heats as in the standard mode, but converts to values corresponding to those in the MA30 (old adjustment disk; 20...200°C –>

20...160°C). This mode is active only for moisture analysis (before, during and after drying), but not during heat adjustment or heating tests.

Standby Temperature

– Temperature set to defined value when

the sample chamber is closed

Initial Weight

You can select a weight to be used as a guide for applying a sample to the analyzer. This value is stored as a target weight and is not used as a start condition for the drying program. Tolerance limits of ± 20% are displayed.

Start of Analysis

– With stability after the u key

is pressed:

When START is shown in the Function line and you press u to confirm, the initial weight is stored at stability regardless of whether the cover is open or closed.

– Without stability after the cover

is closed: A symbol shown in the graphic symbol display prompts you to close the cover once the initial weight condition is met.

The initial weight is stored without stability as soon as the sample chamber is closed.

The analysis starts as soon as you close the cover and a 2-second delay has elapsed.

End of Analysis with Shutoff Parameters

– fully automatic mode

– semi-automatic (absolute)

– timer-mode

Fully Automatic Mode: The analysis ends as soon as the weight loss per 24 s is below an automatically detected threshold.

Semi-automatic, absolute:

The analysis ends as soon as the weight loss per 24 s is lower than a userdefined threshold (set in milligrams).

Timer Mode: The analysis ends as soon as the specified time has elapsed.

Display Mode

The following units can be selected for displaying analysis results:

– Moisture %L

– Dry weight %R

– Ratio %LR

– Residual weight g

– Residual weight g/kg

Print Intermediate Results

Intermediate results can be printed either at user-definable time intervals or by pressing the r key.

Factory Settings

The drying programs can be reset to the factory settings.

Weight

Moisture

Automatic Shutoff

Time

T [°C]

Standardtrocknung

t [s]

T [°C]

200°C

Standardtrocknung

30 t [min]

Printout of the Analysis Parameters

§ When the desired program is displayed:

Press the r key

> Parameters are printed (see example

on the right) Lines with more than 20 characters are truncated.

Additional Functions

The following functions are available in the program memory:

– Display programs

– Change program settings

– Save changes

--------------------

13.08.2001 13:06

Model MA45-000230V Ser. no. 13206969 Ver. no. 01-43-01 ID

--------------------

PROGRAM

--------------------

Heating program

Standard drying

Temperature:

105 ’C

Standby temperatur

Off

Bar graph for weig

Activated

Target wght:

5.0 g

Start analysis

Without stability, a

fter close

End of analysis

Automatic

Display mode

Moisture (%L)

Print intermediate

Off

--------------------

Example: Standard Drying with Fully Automatic Shutoff Mode

The moisture content of 2 g of corn starch is to be analyzed. The sample can scorch if overheated, but it is not particularly heat sensitive. The analysis is to be ended automatically as soon as a constant weight is reached.

Settings (changes in the factory settings required for this example):

Program number: 1 Final temperature: 130°C Start of analysis: With stability after “Enter” key is pressed End of analysis: automatic (factory setting)

Part A: Configuring the Drying Parameters

Step Key (or Instruction) Display/Printout

1. Turn on the moisture analyzer e Sartorius logo is displayed

Self-test runs

2. Select the PROGRAM function y or x

3. Confirm the PROGRAM function u

4. Select P1 program u

5. Select Heating program u

6. Select Standard drying u

7. Enter the temperature: 130 u 3 ƒ x

u 5 ƒ y u

P1 105oC Auto.

0092

PROGRAM

TARESETUP

Step Key (or Instruction) Display/Printout

8. Confirm the temperature u

9. Select the Initial weight c parameter 2 ƒ y

10. Confirm the Initial weight u parameter

11. Select the On setting and y confirm u

12. Enter the target weight 2.0 3 ƒ x

13. Confirm the target weight u

14. Select the Start of analysis c parameter y

15. Confirm the Start of analysis u parameter

16. Select the With stability, after ENTER key setting x and confirm u

17. Exit the PROGRAM function 3 ƒ c

Part B: Performing the Analysis

Step Key (or Instruction) Display/Printout

1. Turn on the moisture analyzer e Sartorius logo is displayed

Self-test runs

2. Prepare the sample: not necessary for corn starch

3. Open the sample chamber and position a new sample pan

4. Tare the sample pan: Select the TARE function y or x as needed and confirm u

5. Spread approx. 2 g of corn starch uniformly on the sample pan Close the sample chamber

6. Start the drying program u

After 2 seconds’ delay the header for the moisture analysis is printed

(see next page)

P1 130oC Auto.

P1 130oC Auto. Delay 2sec

0092

0002

PROGRAMM

2036

PROGRAMM

2036

PROGRAMM

PROGRAM

TARESETUP

TARASETUP

STARTSETUP

TARASETUP

P1 130oC Auto. Verzög. 2sec

2036

PROGRAMM

TARASETUP

Step Key (or Instruction) Display/Printout

--------------------

13.08.2001 16:01 Model MA45-000230V Ser. no. 13206969 Ver. no. 01-43-01 ID

-------------------Prg. 1 Heating STANDARD

Fin. temp. 130 ’C Stdby temp. OFF Start W/STABIL. End AUTOMATIC IniWt + 2.036 g

The current moisture loss is displayed after the data is printed.

The drying program shuts off automatically once no further weight loss is detected (in this example, after 5.2 minutes)

Then the footer of the analysis -------------------record is printed FinWt + 1.814 g

5.2+ 18.90 %L

Name:

--------------------

P1 130oC Auto. 37oC 0.8min

P1 130oC Auto. 128oC 5.2min

005

PROGRAMM

1890

PROGRAMM

CANCELSETUP

NEXTSETUP

The following functions are available in the SETUP menu, under the isoTEST menu item:

– Weighing system:

– Calibration/adjustment – Weighing only

– Hardware tests

– Test interfaces – Heater test

When the sample pan and the pan support are removed from the sample chamber, you have access to the following functions:

– Heater adjustment

– 2-point temperature adjustment – 1-point temperature adjustment

“isoTEST” Calibration/Adjustment Functions

Heater Adjustment

Using 1-point and 2-point temperature adjustment and the YTM03MA temperature adjustment set (see “Accessories”) you can calibrate and adjust temperature settings of the drying unit.

Weighing System Settings

Calibration, Adjustment

Purpose

Calibration is the determination of the difference between the weight readout and the true weight (mass) of a sample. Calibration does not entail making any changes within the weighing system.

Adjustment is the correction of the difference between the measured value displayed and the true weight (mass) of a sample, or the reduction of the difference to an allowable level within maximum permissible error limits.

Features

Calibration is performed externally with a pre-set weight value of 30 g (see “Accessories”, order no. YSS43).

You can have calibration and adjustment results documented as a ISO/GLPcompliant printout; see the next page.

External Calibration/ Adjustment with a Factory-Defined Weight

Externally calibrate and adjust the weighing system using a 30-g calibration weight

Step Key (or Instruction) Display/Printout

1. Select SETUP in the Function line x or y

2. Confirm SETUP u

3. Select isoTEST 2 ƒ y

4. Confirm isoTEST u

5. Confirm Weighing system settings u

6. Confirm Calibration/adjustment u

7. Unload and tare the weighing system u

8. Select the CAL. function y

9. Start calibration u

P1 105oC Auto.

0092

PROGRAM

TARESETUP

WGH.SYS CAL./ADJ.Verzög. 2sec

0092

0000

CAL.

KAL.

TAREEND

TARAENDE

Step Key (or Instruction) Display/Printout

The weighing system is prepared for the calibration procedure When the system is ready, the display shows

10. Place the weight on the weighing system Apply 30-g calibration (in this example, 30.000 g) weight Minus sign: weight too low Plus sign: weight too high No sign: weight ok

At the end of calibration, the display shows

11. If no adjustment is required, y select END in the function line u and confirm --------------------

13.08.2001 16:15 *) Model MA45-000230V

*) Date and time shown only when Ser. no. 99992581

using the YDP02 or YDP03 printer Ver. no. 01-43-01 from Sartorius ID

-------------------External calibration W-ID Nom. + 30.000 g Diff. - 0.002 g

--------------------

13.08.2001 16:16 *) Name:

--------------------

12. If necessary, adjust the u weighing system

At the end of adjustment, the display shows

and a report is printed (see next page)

WGH.SYS CAL./ADJ.Verzög. 2sec

30000

PROGRAMM

WGH.SYS CAL./ADJ.Verzög. 2sec

30000

PROGRAMM

WGH.SYS CAL./ADJ.Verzög. 2sec

0002

END

TARASETUP

ADJUSTSETUP

WGH.SYS CAL./ADJ.Verzög. 2sec

0002

30000

ENDE

CAL.

JUST.SETUP

TAREEND

Step Key (or Instruction) Display/Printout

Printout following adjustment: --------------------

13.08.2001 16:15 *) Model MA45-000230V

*) Date and time shown only when Ser. no. 13206969

using the YDP02 or YDP03 printer Ver. no. 01-43-01 from Sartorius ID

-------------------External calibration W-ID Nom. + 30.000 g Diff. - 0.002 g External adjustment

completed

Diff. 0.000 g

--------------------

13.08.2001 16:16 *) Name:

--------------------

13. Unload the weighing system

Hardware Tests

Purpose

Hardware tests are performed to check whether the system communication with internal and external devices functions properly. These tests are not elementary hardware tests.

The following device elements can be tested:

– SBI communication – Heater

Activating Hardware Tests

Step Key (or Instruction) Display/Printout

1. Select SETUP in the Function line x or y and confirm u

Select isoTEST and confirm 2 ƒ y

3. Select Hardware Tests and y confirm u

Testing SBI Communication

Step Key (or Instruction) Display/Printout

1. Prepare the test connector for the RS-232 port Connect TƒD (pin 2) with (see “Pin Assignment Chart”) RƒD (pin 3)

2. Select “Hardware tests” see above

3. Select “Test interfaces” function u and confirm

4. Confirm “SBI communication u test” function

At the end of the test, the result is displayed: Test error or: Test OK (in this case, Test error) (the test is repeated continuously)

5. Exit “Test SBI communication” 2 ƒ c

Testing the Heater

Step Key (or Instruction) Display/Printout

1. Select “Hardware tests” see the previous page

2. Select “Heater test” y and confirm u

3. Start the heater test: Select the START function u

After initialization, the current temperature (in this case: 123°C) and test time (in this case: 1.5 min) are displayed

If the sample chamber is opened, the test stops until the sample chamber is closed again.

After a brief time interval, the device reaches the nominal temperature.

4. Exit the heater test c

HARDWARE INTERFACE SBI

Result: Test Fehler

HARDWARE INTERFACE SBI

Result: Test error

HEATER TST 160oC Verzög. 2sec

END

STARTSETUP

C 1.5min

C 11.2min

HEATER TST 160oC160

123

ENDE

160

ENDE

STARTSETUP

105

Auto.

C 5.4min

HEATER TEST 160

Data Output

There are three options for data output:

– Output to the moisture analyzer

– Output to an external printer (YDP02-0CE or YDP03-0CE)

– Output to a peripheral device (e.g., a computer) via the interface port

Output to the Moisture Analyzer Display (Weights and Calculated Values)

The display is divided into 9 sections. Information about the weighing system, the application being used and the sample weighed is output in the following sections:

– Drying program/Test status line

– Print symbol

– Bar graph

– Busy symbol

– Plus/minus sign

– Measured value/result

– Weight unit display

– Graphic symbol

– Function line

Drying Program/Test Status

This line shows information on the drying program:

– Program number

– Temperature data

– Shutoff parameter

– Current temperature and elapsed time

– Active test function with parameters

Print Symbol

The print symbol is shown in this section when the r key is pressed or at the start and end of moisture analysis.

Bar Graph (Overview Display)

The bar graph shows the target weight with tolerance values (–20%, +20%).

The bar graph is displayed if you have selected ON for the “Initial weight” parameter in the drying program.

Drying program/Test status line Bar graph

Measured value/result

Function line

Plus/minus sign Busy symbol

Weight

unit

display

Graphic symbol

Print symbol

S D

5234

17.23

Busy Symbol

The “Busy” symbol is shown here when the moisture analyzer is processing a function activated by pressing a key.

Plus/Minus Sign

Any plus or minus sign required for a displayed value is shown here.

Measured Value/Result

This line shows:

– the current weight unit

– calculated values (e.g., % moisture)

Weight Unit Display

This section shows:

– the current weight unit (e.g., g)

– the drying temperature unit

– the unit for calculated values (e.g., % moisture)

Graphic Symbols

There are a number of different graphic symbols that can be displayed here; for example, to prompt the next user action (“Close cover”), to indicate the current function (sample pan with evaporating moisture) or to show that the current internal operation will take some time (hourglass).

Function Line

This line indicates the functions that can be activated by pressing “Enter” (e.g., Setup menu, Program menu, “Tare”, “Start”, or “Cal” (calibration)).

If an error occurs, the resulting error code or message overwrites this line.

PROGRAM TARESETUP

Purpose

The moisture analyzer has an interface port for connecting an external printer or computer (or other peripheral device).

External Printer

You can use an external printer to generate printouts and to document settings.

Computer

Analyses and calculated values can be transmitted to a computer for further evaluation and recording.

!Warning When Using Pre-wired

RS-232 Connecting Cables!

RS-232 cables purchased from other manufacturers often have incorrect pin assignments for use with Sartorius weighing systems! Be sure to check the pin assignments against the chart below before connecting the cable, and disconnect any lines marked “Internally Connected” (e.g., pin 6). Failure to do so may damage or even completely ruin your weighing system and/or peripheral device.

Available Features

Type of interface: Serial interface Interface operating mode: Full duplex Standard: RS-232 Transmission rates: 150; 300; 600; 1,200; 2,400; 4,800; 9,600; 19,200 baud Number of data bits 7, 8 bit Parity: None, odd, even Number of stop bits: 1 or 2 stop bits Handshake mode: Software, hardware 1 character Operating mode: SBI, xBPI 1) Network address2): 0, 1, 2, [...], 30, 31 Data output format with SBI: 20 characters + CR LF

) xBPI operating mode: 9600 baud, 8 bits, odd parity, 1 stop bit

) Network address is valid only in the xBPI mode

Factory Settings for the SBI Operating Mode Parameters:

Transmission rate: 1,200 baud Number of data bits 7 bits Parity: Odd Stop bits: 1 stop bit Handshake: Hardware 1 character Operating mode: SBI

Preparation

§ See pages 42 and 43 for the pin assignment chart and cabling diagram.

Interface Port

Data Output Format

You can output the values, displayed in the corresponding line for moisture analysis values, and the weight unit with or without a data ID code.

Example: With Data ID code

N + 3.4253 g

20 characters per line are output.

Data Input Format

If you have a computer connected to the interface port on the moisture analyzer, you can send the commands “Esc P CR LF” to generate a printout.

Output Format with 20 Characters + CR LF

12345678910111213141516171819202122

IIIIII+*DDDDDDDD * UUUCRLF

*****– ........ ***

* ********

I: ID code character U: Unit symbol *: Space CR: Carriage return D: Digit or letter LF: Line feed

Error Codes

12345678910111213141516171819202122 Stat*****ERR*###****CRLF

*: Space # # #: Error code number H: Overload L: Underload

Synchronization

During data communication between the moisture analyzer and an on-line device (computer), messages consisting of ASCII characters are transmitted via the interface. For error-free data communication, the parameters for baud rate, parity, handshake mode and character format must be the same for both units.

You can adapt your moisture analyzer by setting corresponding parameters in the Setup menu.

If you do not connect a peripheral device to the analyzer’s interface port, this will not generate an error message.

Handshake

The moisture analyzer SBI interface (Sartorius Balance Interface) has transmit and receive buffers. You can define the handshake parameter in the Setup menu:

– Hardware handshake (CTS/DTR) – Software handshake (XON, XOFF)

Hardware Handshake

With a hardware handshake, 1 more character can be transmitted after CTS (“clear to send”).

Software Handshake

The software handshake is controlled via XON and XOFF. When a device is switched on, XON must be transmitted to enable any connected device to communicate.

When the software handshake is configured in the Setup menu, the hardware handshake becomes active after the software handshake.

The data transmission sequence is as follows:

Moisture

byte __> Computer

analyzer

byte __> (receiving

(transmitting

byte __> device)

device)

byte __>

<__XOFF

byte __>

…

(Pause)

…

<–– XON ––

byte __>

Transmitting Device:

Once XOFF has been received, it prevents further transmission of characters. When XON is received, it re-enables the transmitting device to send data.

Receiving Device:

To prevent too many control commands from being received at one time, XON is not transmitted until the buffer is almost empty.

Activating Data Output

You can define the data output parameter so that output is activated either when a print command is received, or automatically and synchronously with the analyzer display.

Data Output by Print Command

The print command can be transmitted by pressing r or by sending a software command (Esc P).

Female Interface Connector:

25-position D-Submini (DB25S) with screw lock hardware for cable gland

Male Connector Used: (please use connectors with the same specifications):

25-pin D-Submini (DB25S) with shielded cable clamp assembly (Amp type 826 985-1C) and fastening screws (Amp type 164 868-1)

Pin Assignment Chart:

Pin 1: Signal ground Pin 2: Data output (TƒD) Pin 3: Data input (RƒD) Pin 4: Signal return (TƒD/RƒD) Pin 5: Clear to send (CTS) Pin 6: Internally connected Pin 7: Internal ground Pin 8: Internal ground Pin 9: Reset _ In*) Pin 10: –12 V Pin 11: +12 V Pin 12: Reset _ Out*) Pin 13: + 5 V Pin 14: Internal ground Pin 15: Internally connected Pin 16: Internally connected Pin 17: Internally connected Pin 18: Internally connected Pin 19: Internally connected Pin 20: Data terminal ready (DTR) Pin 21: Supply voltage ground “COM” Pin 22: Not connected Pin 23: Not connected Pin 24: +10 V Pin 25: +5 V

*) = Hardware restart

Pin Assignment Chart

– Diagram for interfacing a computer or other peripheral device to the moisture analyzer using the RS-232/V24 standard and cables

up to 15 m (50 ft.) long

V24

Moisture analyzer Peripheral device

Cabling Diagram

–

14 7

PC PC 25-pin or 9-pin

20 4

Type of cable: AWG 24 specification

Error codes are displayed in the main display or text line for 2 seconds. The program then returns automatically to the previous status.

Display Cause Solution

No segments appear on the display No AC power is available Check the AC power supply

The power cord is not plugged in Plug in the power cord Fuses are defective Replace the fuses

H The load exceeds the weighing capacity Unload the pan support L or ERR 54 The pan support is not in place Place the pan support

on the weighing system

ERR 01 Data output not compatible with Change the configuration in

> Display range output format the Setup menu

ERR 02 Calibration/adjustment condition not met, e.g., Calibrate only when zero is displayed

Cal. n. possible – not tared Press the TARE function key

– the pan support is loaded Unload the moisture analyzer

ERR 03 Calibration/adjustment could not Allow the moisture analyzer to warm up

Cal/adj. interrupt be completed within a certain time again and repeat the adjustment process

ERR 30 Interface port for printer output Have the port setting changed

Print fct. blocked is blocked by Sartorius Customer Service

ERR 31 External device not ready to send Transmit XON, then CTS

Print fct. blocked (interface handshake interrupted; XOFF, CTS)

ERR 53 No temperature compensation Contact the Sartorius Service Center

No meas. value

ERR 101 Key is stuck Release key

Key pressed when switching on or contact your local the moisture analyzer Sartorius Service Center

“Checkerboard” pattern displayed u key was pressed when turning continuously on the moisture analyzer, or is stuck

ERR 320 Operating program memory is wrong Contact your local

Sartorius Service Center

ERR 340 Operating parameter (EEPROM) Contact your local

is wrong Sartorius Service Center

ERR 342 Operating parameter (EEPROM) is Contact your local

wrong except for adjustment parameters Sartorius Service Center

NO WP Weighing system is defective Contact your local

Sartorius Service Center

blocked Function blocked None

xxxxx too low Input wrong (with any Follow the instructions xxxxx too high application program), e.g., for the application programs

alphabetic input not allowed

Troubleshooting: see next page

Error Codes

Problem Cause Solution

What can I do if... The selected temperature is too high – Reduce the temperature

and the sample oxidizes – Put a glass fiber filter on top

of the sample Sample boils or scorches – Reduce the sample quantity and the splashes continuously or apply the sample more evenly change the sample weight – Select a semi-automatic shutoff

parameter or select the timer mode

Analysis time is too long – Increase the temperature

– Reduce the sample quantity – Preheat the unit by running it for 2 or

3 minutes with an empty sample pan Sample loses weight – Remove the sample pan and apply before it is analyzed the sample outside the sample chamber

Sample is liquid or pasty – Use a glass fiber filter

Sample contains too little moisture – Increase the sample quantity

Insufficient heat output – Clean the protective glass or

temperature sensor

Place of installation exposed to – Change the place of installation interfering factors (vibration, etc.)

If any other errors occur, please contact your local Sartorius Service Center

Service

Regular servicing by a Sartorius technician will extend the service life of your moisture analyzer and ensure its continued weighing accuracy. Sartorius can offer you service contracts, with your choice of regular maintenance intervals ranging from 1 month to 2 years.

The frequency of the maintenance intervals depends on operating conditions and user tolerance requirements.

Repairs

Repair work must be performed by trained service technicians. Any attempt by untrained persons to perform repairs may lead to hazards for the user.

Cleaning

! Make sure that no dust or liquid enters

the moisture analyzer housing

! Do not use any aggressive cleaning

agents (solvents, abrasive cleaning agents, etc.); clean the moisture analyzer using a piece of cloth which has been wet with a mild detergent (soap) only

§ Unplug the power cord from the wall

outlet (mains supply) If you have a cable connected to the interface, unplug it from the moisture analyzer

$ The pan draft shield and the pan

support can be removed for cleaning

§ Carefully remove any sample residue/

spilled powder using a brush or a handheld vacuum cleaner

§ After cleaning, wipe down the analyzer

with a soft, dry cloth

Cleaning the Heating Unit and Temperature Sensor

§ Open the hinged cover

! Danger: The terminals of the heating

unit are under live current

§ To disconnect from AC power,

unplug the power cord from the wall outlet (mains).

If you have a cable connected to the interface port, disconnect it from the moisture analyzer

§ Carefully remove any residue from the

temperature sensor

§ Use a soft-bristled brush or a commer-

cially available cleaning agent for glassware to clean the ceramic heating element

Care and Maintenance

Safety Inspection

If there is any indication that safe operation of the moisture analyzer is no longer warranted:

§ Turn off the power and disconnect

the equipment from the wall outlet immediately

> Lock the equipment in a secure place

to ensure that it cannot be used for the time being

Safe operation of the moisture analyzer is no longer ensured when:

– there is visible damage to the moisture

analyzer or power cable

– the moisture analyzer no longer

functions properly

– the moisture analyzer has been stored

for a relatively long period under unfavorable conditions

– the moisture analyzer has been exposed

to rough handling during shipment

In this case, notify your nearest Sartorius Service Center. Maintenance and repair work may be performed only by service technicians who are authorized by Sartorius and who:

– have access to the required mainte-

nance manuals

– have attended the relevant service

training courses

We recommend that the moisture analyzer be inspected according to the following checklist by a qualified Sartorius service technician:

– Resistance of the protective grounding

conductor < 0.2 ohm measured with a commercially available multimeter

– Insulation resistance > 2 megohms

measured with a constant voltage of at least 500 volts at a 500 kohm load

The duration and number of measurements should be determined by a qualified Sartorius service technician according to the particular ambient and operating conditions. However, such inspection must be performed at least once a year.

Specifications

Model MA45

Dryer functions:

Heating element Ceramic IR heater Temperature range 40 – 230°C Temperature increments adjustable in 1°C increments Temperature adjustment with YTM03MA temperature adjustment set

Weighing Functions:

Weighing capacity 45 g Readability 1 mg, 0.01% moisture content Repeatability, average (%) sample weight 1–5 g: 0.2%

sample weight 5 g: 0.05%

External calibration weight 30 g (± 0.3 mg) (with an accuracy of at least...)

Sample pan dimensions ‡ 90 mm

Drying parameters:

Drying programs Standard; MA30 mode Drying time 0.1 to 99.9 minutes Number of programs 3 Shutoff criteria Fully automatic, semi-autom. (1 – 20 mg/24 s),

timer mode (1 ƒ 99.9 Min.) Display of analysis results Moisture, dry weight, RATIO, residual weight (g or g/kg) Minimum sample weight 0.100 g

Analyzer (hardware):

Dimensions (W ƒ D ƒ H) 213 ƒ 320 ƒ 181 mm Net weight, approx. 5.1 kg Voltage 230 V or 115 V (depending on model variant), –15% ... +10% Frequency 48 – 60 Hz Fuses 2 (neutral conductor/phase), 6.3 AT, 5 ƒ 20 mm (internal) Operating temperature range +10 ... +30°C Power consumption 700 VA max. Built-in interface RS-232C

Format: 7 bit ASCII, 1 start bit, 1 or 2 stop bits Parity: Odd or even Transmission rates: 150 to 19,200 baud Handshake: Software or hardware

Overview

Accessories (Options)

Product Order No.

External printer YDP03-0CE

Printer expendables: – 5 paper rolls 69 06937 – ink ribbon 69 06918

Temperature adjustment set YTM03MA

Exchangeable panels for drying unit (aluminum) YDS04MA

Carrying case YDB05MA

Software for recording moisture analysis values YMW02MA

Expendables: – 80 disposable sample pans, ‡ 90 mm (aluminum) 69 65542 – 80 glass fiber filters (for liquid samples) 69 06940

Interface cable (RS-232/25-pin) 69 57312

Calibration weight, 30 g (± 0.3 mg) YSS43

Standard Operating Procedure (SOP)YSL02A

For Working with a Moisture Analyzer

(For Quality Assurance Documentation)

Spare Parts

Dust cover for keypad 6960MA02

Forceps 69MA0072

Other spare parts can be ordered directly through your local

Sartorius Service.

The moisture analyzer complies with the following EC Directives and European Standards:

Council Directive 89/336/EEC “Electromagnetic Compatibility (EMC)”

Applicable European Standards:

Limitation of emissions: In accordance with product standard EN 61326-1 Kl.B (residential area)

Defined immunity to interference: In accordance with product standard EN 61326-1 (industrial area)

Important Note: The operator shall be responsible for any modifications to Sartorius equipment and must check and, if necessary, correct these modifications. On request, Sartorius will provide information on the minimum operating specifications (in accordance with the Standards listed above for defined immunity to interference).

73/23/EEC “Electrical equipment designed for use within certain voltage limits”

Applicable European Standards:

EN 563 Safety of machinery – temperatures of touchable surfaces

EN 60950 Safety of information technology equipment including electrical business equipment

EN 61010 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1: General requirements Part 2-010: Particular requirements for laboratory equipment for the heating of materials

If you use electrical equipment in installations and under ambient conditions requiring higher safety standards, you must comply with the provisions as specified in the applicable regulations for installation in your country.

C Marking

Page

Accessories 2, 4, 31, 49 Acoustic signal 14, 17 Adjustment to an existing measuring system 21 Adjustment 31, 44 Alphanumeric input 9

Basics 19

C marking 50 Cabling diagram 43 Calibration 31, 38 Care and maintenance 46 Cleaning 2, 4, 8, 22, 46 Configuring the moisture analyzer 13, 27 Connection to power 6 Contents 3 Contrast of the display 14 Crust development on samples 23

Data input format 40 Data output format 40 Data output 11, 37, 41, 44 Date: setting 8 Device information 18 Device parameters 14 Display contrast 14 Display 2, 6, 9, 14, 37, 41 Drying parameters 2, 24, 48 Drying programs 12, 14, 25, 38 Drying temperature 10, 38, 45

End criteria 25 End of analysis 24 Entering letters/numbers 9 Equipment supplied 5 Equipment: general overview 6 Error codes 12, 41, 44 Examples 10, 13, 15, 16, 18,

26, 40

Factory settings 12, 17, 24, 27, 39 Frequency 5, 7, 46, 48 Fuses 44

General overview of the equipment 6 General password 12, 14, 53, Appendix Getting started 4

Handshake 14, 17, 39, 41, 44, 48 Hardware test 31, 35 Heater adjustment 31 Heater 4, 7, 46, 49 Heater: test 36 Heating programs 2, 11, 24, 48

Initial weight 10, 24, 37, 48 Installation 5 Intended use 2 Interface port 6, 7, 11, 37, 39, 44 Interface port test Interface 5, 9, 11, 14, 31, 35,

39, 44, 48

isoTEST 12, 18, 31

Index

Page

Keypad 2, 5 Keys: description 9

Language: setting 8, 13 Leveling the moisture analyzer 8

MA30 mode 24, 48 Maintenance 46

Numeric input 9

On/off 8, 27, 29, 41, 44

Operating design 9 Operating the moisture analyzer 24 Options 2, 4, 8, 49

Password 2, 12, 14, 53 Password: enter, change 14 Pin assignments 42 Pin assignments 42 Power connection 6 Preparing samples 21 Print intermediate results 25 Printer 2, 5, 7, 11, 14, 33,

37, 39, 49 Printing 15, 18, 20, 26, 29, 34 Programs 2, 12, 14, 25, 38, 48

Recycling the packaging 5 Repairs 46 Replacing a fuse 44, 48 Results: display mode 24, 48

Safety information 4, 8 Safety inspection 47 Safety precautions 7 Sample chamber 8, 23, 25, 29, 31, 36 Samples: crust, skin development 23 Samples: preparing 21 Service 46, 49 Shutoff parameters 20, 37, 45 Software handshake 17, 41 Specifications 48 Standard drying 24 Standby temperature 25 Start of analysis 24 Storage and shipping conditions 5, 47 Synchronization 41

Technical advice on applications 2 Testing the heater 31, 35, 36 Testing the interface port 31, 35 Time: output on printouts 33 Time: setting 8

Unpacking the equipment 5

Warmup time 7, 44

Warning and safety information 4 Warranty 5 Weighing system settings 31

General Password

Enter/Change Password

§ Select the Setup menu:

Use the x or y key to select SETUP in the Function line and press u to confirm

§ Press the u key

> SETUP is displayed with submenus

§ Select a submenu (in this example,

“Device parameters”): Press the y key and press u to confirm

> Password prompt is displayed.

$ Use the x and y keys to enter

the password (see page 9 for details on alphanumeric input) and press u to confirm each digit

§ Press u to confirm password

$ Display device parameters:

Press the y and u keys

> Device parameters are displayed

§ Select the password function:

Press the u key

> Password prompt is displayed, together

with current password

§ Enter a new password: Use the x and y keys to enter the password and press u to confirm

$ To delete the password, enter a “space”

and press the u key to confirm

§ Exit the Setup menu: Press the c key twice

> Restart your application

General Password: 40414243

Brief Instructions

Sartorius MA45

Overview of Key Functions

eOn/Off Key

Turn moisture analyzer on/off; analyzer remains in standby mode when switched off

c Clear Function

During analysis: Cancel function (e.g., taring) In menu: Delete input; exit current menu level

u Enter

During analysis: Activate selected function (e.g., taring, analysis, cancel) In menu: Store selected setting/input

y Down/Back

In menu: Go to next menu item on same level In alphanumeric input: Show next lowest number/letter

x Up/Forward

In menu: Go to previous menu item on same level In alphanumeric input: Show next highest number/letter

r Print

Output readout or active data record via the interface port to the external printer

WMA6026-e01111

Moisture Analysis

Switch analyzer on: e key

Select drying program:

Select PROGRAM: y and u keys

Use the y and u keys to select program P1, P2 or P3

Add sample:

Close sample chamber:

Start analysis: START function and u key or directly after closing sample chamber

Drying in progress: wait

Read off result:

Cancel password prompt, if necessary: c key

Exit program selection: c key twice

Open sample chamber:

Position sample pan:

Tare sample pan: TARE function and u key

P1 130oC Auto. 128oC 5.2min

1890

PROGRAMM

NEXTSETUP

Configuration (SETUP)

Activate menu: Use the y and u keys to select the SETUP function; confirm

Select desired menu level: y and x keys

Exit menu level or exit SETUP: c key

Language

German English U.S. mode Français Italiano Español

Select menu item and setting: y, x and u keys

Device parameters

Password Interface Display contrast Acoustic signal Factory settings

isoTEST

Calibrate/adjust weighing system Hardware tests

Info: Device data

Drying Parameters (PROGRAM)

Activate menu: Use the y and u keys to select the PROGRAM function; confirm

Heating program

Standard drying MA30 mode

Select program P1, P2 or P3

Exit menu level or exit PROGRAM: c key

Select menu item and setting: y, x and u keys

Standby temperature

Initial weight

Start analysis

With stability when Enter is pressed Without stability when cover is closed

End of analysis

Fully automatic Semi-automatic Time

Display mode

Moisture (%L) Dry weight (%R) Ratio (%LR) Residual weight (g) Residual weight (g/kg)

Print intermediate results

Factory settings

Sartorius AG Weender Landstrasse 94–108 37075 Goettingen, Germany

Phone +49.551.308.0 Fax +49.551.308.3289 www.sartorius.com

Copyright by Sartorius AG, Goettingen, Germany. All rights reserved. No part of this publication may be reprinted or translated in any form or by any means without the prior written permission of Sartorius AG. The status of the information, specifications and illustrations in this manual is indicated by the date given below. Sartorius AG reserves the right to make changes to the technology, features, specifications and design of the equipment without notice.

Status: November 2001, Sartorius AG, Goettingen, Germany

Printed in Germany on paper that has been bleached without any use of chlorine W3A000.MA45 · KT Publication No.: WMA6025-e01111

Sartorius MA45 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Sartorius Moisture Analyzer

98648-010-37

Intended Use

Contents

Warning and Safety Information

Getting Started

Equipment Supplied

Connecting the Moisture Analyzer to AC Power

Leveling the Moisture Analyzer

Turning On the Analyzer; Opening and Closing the Sample Chamber

Operating Design

Keys

Menu Operation

Data Output

Error Codes

Saving Data

Configuring the Moisture Analyzer

Setting the Language

Entering or Changing the Password

Device Parameters (Overview)

Device Information

Basics of Moisture Analysis

Preparation

Adjustment to an Existing Measuring System

Preparing a Sample

Setting the Drying Parameters

Drying Parameters (Overview)

Operating the Moisture Analyzer

“isoTEST” Calibration/Adjustment Functions

Heater Adjustment

Weighing System Settings

Hardware Tests

Data Output

Interface Port

Data Output Format

Data Input Format

Pin Assignment Chart

Cabling Diagram

Error Codes

Service

Repairs

Cleaning

Care and Maintenance

Safety Inspection

Specifications

Overview

Accessories (Options)

Index

Brief Instructions