Sartorius MA35 Operating Instructions Manual
Operating Instructions
Moisture Analyzer
Model MA35
Electronic Moisture Analyzer
1000034789
2
The MA35 moisture analyzer is intended for fast
and reliable determination of the material moisture
content of liquid, pasty and solid substances using
the thermogravimetric method.
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 particular step
– indicates an item in a list
! indicates a hazard
Intended Use
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Contents
Intended Use ........................2
Warnings and Safety Information...... 4
Getting Started ...................... 7
General View of the Equipment .........7
Storage and Shipping Conditions ........8
Conditioning the Moisture Analyzer......9
Setting up the Moisture Analyzer........9
Connecting the Moisture Analyzer
to AC Power ........................10
Safety Precautions ...................10
Connecting Electronic Peripheral
Devices.............................10
Warmup Time .......................12
Leveling the Moisture Analyzer......... 12
Installing the Aluminum Panels
(Optional; Part No. YDS05MA) .........12
Turning On the Analyzer; Opening and
Closing the Sample Chamber...........13
Basic Principles .....................14
Purpose ............................14
Material ............................14
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . 17
Adjusting against an
Existing Measurement System..........17
Setting the Drying Program
Parameters..........................17
Preparing the Sample.................17
Use a disposable sample pan ........... 18
Distribute the sample on the
sample pan .........................18
Operating Design ...................19
Keys ...............................19
Display .............................20
Configuration ......................21
Setting the Device Parameters .........21
Setting the Drying Parameters .........23
Operation ..........................27
Example: Analysis with Specified
Drying Time .........................27
Adjusting the Analyzer...............29
Heating Element Adjustment ..........29
Weighing System Adjustment.......... 29
External Calibration and Adjustment
with a Factory-Defined Weight.........30
Interface Port ......................32
Female Interface Connector ...........33
Error Codes.........................34
Care and Maintenance ..............35
Service ............................35
Repairs .............................35
Cleaning............................35
Cleaning the Heating Unit and
Temperature Sensor . . . . . . . . . . . . . . . . . . 36
Safety Inspection ....................37
Disposal............................37
Overview ..........................38
Specifications .......................38
Accessories (Options) .................40
Declaration of Conformity ...........41
Certificate of Compliance............42
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Warnings and Safety Information
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 MA35
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
performing moisture analysis on
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; operate it only under
the ambient conditions specified in
these instructions.
! If you use electrical equipment in
installations and under ambient
conditions subject to stricter safety
standards than those described in the
manual, you must comply with the
provisions as specified in the applicable regulations for installation in your
country.
– The moisture analyzer may be operat-
ed 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 “Connecting the Moisture Analyzer to AC
Power” in the chapter entitled
“Getting Started”).
– The analyzer 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.
Note on installation:
The operator shall be responsible
for any modifications to Sartorius
equipment or connections of cables
not supplied by Sartorius and must
check and, if necessary, correct these
modifications. On request, Sartorius
will provide information on the
minimum operating specifications.
– Protect the analyzer from contact with
liquid
– If there is visible damage to the
equipment or power cord, unplug the
equipment and lock it in a secure place
to ensure that it cannot be used for
the time being.
5
! Clean your moisture analyzer only
according to the cleaning instructions
(see “Care and Maintenance”).
Do not open the analyzer housing.
$ Please contact your local Sartorius
Service should any problems arise with
your device.
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 moisture
analyzer
– Do not place any flammable substances
on, under or near the moisture analyzer, because the area around the heating
unit will heat up
– Be careful when removing a sample
from the chamber: the sample, the
heating unit and the sample pan may
still be extremely hot
– Prevent excess heat build-up around
the analyzer
Hazards for persons or equipment
posed by certain sample materials:
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 into 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 functioning (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.
6
Poisoning Caustic burns
– Substances containing toxic or caustic or
corrosive components may only be dried
under a fume hood. The value for the
“lower toxic limit” in a work area must
not be exceeded.
Corrosion:
– Corrosion may be caused by substances
that release aggressive vapors during the
heating process (such as acids).
We recommend working with only small
quantities of such samples, to avoid
build-up of vapors that can condense
on cold housing parts and can cause
corrosion.
The user shall be liable and responsible
for any damage that arises in connection
with this moisture analyzer.
7
Getting Started
General View of the Equipment
Pos. Designation Pos. Designation
1 Hinged cover with heating element 9 Disposable sample pan
2 Leveling feet 10 Pan support
3 On/off key 11 Pan draft shield
4 CF key (clear function; delete) 12 Display
5 Enter key (confirm) 13 Keypad
6 ‘Down/Back’ key 14 Interface port
7 ‘Up/Forward’ key 15 Power jack
8 Print key
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2
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3
4
5
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9
10
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The moisture analyzer is a compact
analyzer and comprises the following
components: a heater unit, a weighing
system and an operating unit. In addition
to the socket for AC power (mains
supply), it also has an interface port for
connecting peripheral devices, such as a
computer, printer, etc.
Storage and Shipping Conditions
Allowable storage temperature:
–20 to +70°C
Do not expose the moisture analyzer
unnecessarily to extreme temperatures,
moisture, shocks, blows or vibration.
Unpacking the Moisture Analyzer
§ After unpacking the equipment, please
check it immediately for any visible
damage
$ If any sign of damage is visible, proceed
as directed under “Safety Inspection” in
the chapter entitled “Care and Maintenance.”
It is a good idea to save the box and all
parts of the packaging until you have
successfully installed your equipment.
Only the original packaging provides
the best protection for shipment. Before
packing your moisture analyzer, unplug
all connected cables to prevent damage.
Equipment Supplied
The equipment supplied includes the
components listed below:
– Moisture analyzer
– Power cord
– Pan support
– Pan draft shield
– 80 disposable aluminum sample pans
– 1 pair of forceps
Installation Instructions
The MA35 moisture analyzer is designed
to provide reliable results under normal
ambient conditions in the laboratory
and in industry. When choosing a loca-
tion to set up your 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 moisture 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 equipment to extreme
moisture over long periods
– 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.
9
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, condition it for
about 2 hours at room temperature, leaving it
unplugged from AC power. Leave the device connected to the power supply after first connecting.
Setting up the Moisture Analyzer
§ Position the components listed below in the order
given:
– Pan draft shield
– Pan support
– Disposable sample pan
10
Connecting the Moisture Analyzer to AC Power
§ Check the voltage rating and the plug design
$ The heating element 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: MA35M-…230…
– 115 volts: MA35M-…115…
! CAUTION! If the voltage indicated on the label does
not match your local line voltage:
Do not operate your moisture analyzer; contact
your local Sartorius office or dealer.
Use only
– Genuine Sartorius power cords, or
– Power cords approved by a certified electrician
– 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):
Plug the power cord into an electrical outlet (mains
supply) that is properly installed with a protective
grounding conductor (protective earth = PE)
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.
Make sure the protective grounding effect is not
neutralized by use of an extension cord that lacks a
protective grounding conductor.
Connecting Electronic Peripheral Devices
§ Make absolutely sure to unplug the analyzer from
AC power before you connect or disconnect a
peripheral device (printer or PC) to or from the
interface port.
11
NOTE: This equipment has been tested
and found to comply with the limits pursuant to part 15 of FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference. This equipment generates,
uses and can radiate radio frequency
energy and, if not installed and used in
accordance with these instructions,
may cause harmful interference to radio
communications.
For information on the specific limits and
class of this equipment, please refer to
the Declaration of Conformity. Depending on the particular class,
you are either required or requested to
correct the interference.
If you have a Class A digital device,
you need to comply with the FCC
statement as follows: “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.”
If you have a Class B digital device,
please read and follow the FCC
information given below:
“However, there is no guarantee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to
correct the interference by one or more
of the following measures:
– Reorient or relocate the receiving
antenna.
– Increase the separation between the
equipment and receiver.
– Connect the equipment into an outlet on
a circuit different from that to which the
receiver is connected.
– Consult the dealer or an experienced
radio/TV technician for help.”
Before you operate this equipment,
check which FCC class (Class A or Class B)
it has according to the Declaration of
Conformity included. Be sure to observe
the information of this Declaration
12
Warmup Time
To deliver exact results, the moisture analyzer must
warm up for at least 30 minutes every time you
connect it to AC power or after a relatively long
power outage.
Only after this time will the analyzer has reached
the required operating temperature.
Leveling the Moisture Analyzer
Purpose:
– To compensate for unevenness at the place
of installation
– This is particularly important for testing liquid
samples, which must be at a uniform level in the
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;
Part No. YDS05MA)
! 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 2 rubber caps and the 2 screws
beneath them, and then remove the panel retainer
§ Remove the glass panels
§ Position the aluminum panels in the retainer
§ Fasten the aluminum panels with the retainer and
screws; replace the 2 rubber caps
13
Turning On the Analyzer; Opening and Closing the
Sample Chamber
§ To turn on the analyzer: press e
§ When opening or closing the sample chamber, do not
release the cover until it is in the fully open or fully
closed position
14
Basic Principles
Purpose
The 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.
Material
The moisture of a material is often
mistakenly equated to its water content.
In fact, the moisture of a material
includes all of the volatile components
which are emitted when the sample is
heated, irrespective of the type of
material. Among such volatile
substances are:
– Water
– Fats
– Oils
– Alcohols
– Organic solvents
– Flavorings
– Volatile components, products of decom-
position (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:
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., conductivity). These methods
include capacitive and spectroscopic
approaches.
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 is calculated.
In a conventional drying oven, circulat-
ing hot air warms the sample from the
outside to the inside. Efficiency is lost
during drying because as the moisture
evaporates, it cools the sample surface.
By contrast, infrared rays (IR rays) pene-
trate the substance. The majority of the
rays reach the interior of a sample, and
then directly heat the sample.
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