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.
4
! Clean your moisture analyzer only
according to the cleaning instructions
(see “Care and Maintenance”).
Do not open the analyzer housing.
Hazards for persons or equipment
posed by certain sample materials:
$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
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.
– Prevent excess heat build-up around
the analyzer
5
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.
6
Getting Started
General View of the Equipment
1
9
10
11
2
2
3
4
5
6
7
8
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
12
13
14
15
7
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.
8
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
9
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.
10
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.
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 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.
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.”
– 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
11
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
12
! 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
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
13
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
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.
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.
14
IR-Strahlung
IR rays
Wärmeenergie
Heat
Substanz
Substance
Dark substance
Low reflection
Bright substance
Strong reflection
How the rays penetrate the sample depends
on the permeability of the sample. 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 proportion of the IR rays which does
not heat the sample is either reflected on
the surface of the sample or penetrates the
sample unimpeded.
The color and surface properties of the
sample significantly influence how effective
the heating process is. For example, dark
substances absorb IR rays better than bright
substances.
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
unnecessarily 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
hence cannot be used).
15
While preparing substances for measurement, no processes may be used that
generate heat. The heat generated may
result in a loss of moisture prior to the
measurement.
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 provides information on this at an
early stage.
Since introducing IR rays produces intensive
energy input in the sample, 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 switchoff 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 switch-off criterion.
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 since
no analyzable progress in the drying
routine can be detected. In this case,
preheat the moisture analyzer for two
to three minutes before starting the
drying routine, or select a different
switch-off criterion.
16
Preparation
Before drying a sample, you must carry
out the following preparations:
– Adjust against the existing measurement
system
– Prepare the sample
– Set the drying program parameters
If required, homogenize the product
before a sample is taken by:
– Mixing or stirring
– Taking several samples from different
areas of the product
– Taking several samples at defined
intervals
Adjusting against an
Existing Measurement System
A moisture analysis method often
replaces another drying method (such as
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.
Setting the Drying Program
Parameters
– By selecting the right drying program
parameters, it is possible to achieve the
same results as the standard procedure
in a much shorter time and with much
simpler operation.
Preparing the Sample
t Select a sample
Select a representative part of the whole
substance as a sample.
– Choose a representative number of
individual samples for quality control
– Choose enough samples to indicate a
trend for in-process control
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 several samples need to be taken
simultaneously, the samples must be
sealed in airtight containers 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.
Prepare the sample
When crushing a sample, avoid any
contact with heat. Heat results in
moisture loss.
t Crush the sample using
– Pestle
– Lab mill
17
t Use an appropriate tool for grinding
the sample.
t If the sample is liquid containing solids,
use one of the following tools:
– Glass stirrer
– Spoon
– Magnetic stirrer
Use a disposable sample pan
t Use only Sartorius disposable sample
pans (inner diameter of 90 mm). Reusing
sample pans leads to poor repeatability
of results:
– After cleaning, sample residues can still
remain on the pan.
– Residues from cleaning agents can
evaporate during the next moisture
analysis.
– Scratches and grooves made during
cleaning result in damage that forms
points of attack for hot, rising air
produced during the drying process
(more pronounced buoyancy).
t Apply liquid samples, pasty samples, or
samples that can melt to a glass-fiber
filter (order no. 6906940); this provides
the following benefits:
– Uniform distribution due to the capillary
effect
– Liquids are prevented from beading
together and forming drops
– With larger surfaces, the moisture can
evaporate faster
– Colorless/transparent samples do not
reflect
– 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 particularly
useful in such cases. The moisture can
evaporate downwards through the
surface of the filter. Crust/skin formation
can be prevented or limited by placing
the glass-fiber filter on top of the
sample.
Distribute the sample on the
sample pan
t Distribute the sample on 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
nonuniform distribution of heat
– The sample will not be dried completely
– The analysis time will be unnecessarily
extended
– The sample will burn or a crust/skin will
form 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
– An uncertain and unknown quantity of
moisture will remain in the sample
18
t Cover solid, heat-sensitive samples with
a glass-fiber filter (order no. 6906940);
this provides the following benefits:
– Gentle heating, because 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 repeatability for samples
containing fat
Operating Design
This chapter explains the operating
options available to you so that you can
familiarize yourself with the moisture
analyzer. There is only one key to a
function, i.e., the key retains this function throughout most of the menu levels.
The texts and symbols shown always
have the same meaning.
Keys
Some of the keys trigger different functions, depending on whether you press the key
briefly or press and hold the key:
– Press briefly = hold the key down for less than 1.2 seconds
– Press and hold = hold the key down for more than 1.2 seconds
– If you press and hold longer than 1.2 seconds, the function triggered is repeated every
0.6 seconds for as long as you hold the key.
Key Designation Press briefly Press and hold
eOn/off key Switch device on or off* —
cCF key Analysis: cancel function —
Menu: cancel selection
Enter key Analysis: trigger the Menu: store the
selected function (e.g., selected setting and
Menu: store the tare) close the menu
selected setting
Down/Back Analysis: select a Menu: decrease
key function (e.g., tare) value 10-fold
Menu: decrease value or
return to previous selection
Up/Forward Analysis: select a Menu: increase
key function (e.g., tare) value 10-fold
Menu: increase value or
go to next selection
rPrint key Send readout value —
or data record over
the interface port
* When you switch off the moisture analyzer, it remains in standby mode
19
Display
The texts and symbols shown on the display
always have the same meaning. The display
is divided into several areas.
Drying parameters/Adjustment function
Result
Function line
Busy symbol,
plus/minus sign,
standby symbol
Graphic
symbols
Unit
Drying parameters:
The following symbols indicate drying program parameters for information, selection
and configuration:
120°C Target temperature
40min Drying time
AFully automatic
gWeight unit or unit
for a calculated value
AAnalysis start
2.0min Interval for automatic
output of intermediate
results
Adjustment function:
Busy symbol, plus/minus sign,
standby symbol:
The
symbol is shown here when the
J
moisture analyzer is processing a function.
The plus/minus sign for the weight value
or calculated value appears here as well,
and the standby symbol when the device is
switched off.
Result:
This section shows the weight or calculated
value.
Unit:
When the weighing system stabilizes, the
unit of measurement for the weight or
calculated value is displayed here.
Graphic symbols:
Which symbol is shown here depends on
the operating status of the analyzer. The
examples below indicate “Please close
hood,” “Heating the sample” and “Please
wait” (hourglass).
Function line:
Press the Down/Back or Up/Forward keys
to move the focus and select one of the
functions shown here, and the Enter key to
activate the selected function:
5.3 Number of 5.3.1 o 1 stop bit
stop bits 5.3.2 2 stop bits
5.4 Handshake 5.4.1 Software
mode 5.4.2 o Hardware
5.4.3 None
5.5 Number of 5.5.1 o 7 bits
data bits 5.5.2 8 bits
6. Printing 6.7 Printout 6.7.1 Result only
6.7.2 o Complete (with GLP
and drying
parameters)
6.9 Language 6.9.1 German
6.9.2 o English
6.9.3 US English
(US date/time format)
6.9.4 French
6.9.5 Italian
6.9.6 Spanish
6.9.8 Russian CP1251
6.9.9 Russian CP866
9. Reset menu 9.1 Factory 9.1.1
settings 9.1.2 o Do not reset
Reset to factory settings
21
Example
o
C
o
C
Changing the language to US mode (menu item 6.9.3)
Step Key (or instruction) Display
1. Select SET in the function line Repeatedly:
2. Confirm SET 5.
3. Select menu item 6 6.
4. Open submenu 6.7
5. Select menu item 6.9 6.9
6. Open submenu 6.9.2°
7. Select menu item 6.9.3 6.9.3
8. Confirm menu item 6.9.3 6.9.3°
9. Close the Setup menu Repeatedly: c
22
Setting the Drying Parameters
Select PRG in the function line to adapt parameters for the drying program to the particular
requirements of the product sampled.
Drying Parameters
Temperature during heating
40 … 160°C
End of analysis
0.0 min Select 0.0 minutes for fully automatic shutoff
0.1 to 99 min Select an interval from 0.1 to 99 minutes to define a specific
Display mode for result
%M Moisture
%S Dry weight
%MS Ratio
g Residual weight
Start of analysis
E With stability, after the
A Without stability, after the cover is closed
analysis time
key is pressed
Print intermediate results
0.0 min Off
0.1 to 10.0 min
23
Drying Parameter Features
– Heating temperature set to defined value
during measurement
Start of analysis
– With stability after the
key is
pressed:
When START is shown in the function
line and you press
to confirm, the
initial weight is stored at stability
regardless of whether the cover is open
or closed.
Measurement begins as soon as the cover
is 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, and analysis begins.
End of Analysis with Shutoff
Parameters
– Fully automatic mode
– Timer mode
Fully automatic mode:
Use the fully automatic mode when
loss of weight on drying follows a
clearly delineated curve which can be
unambiguously evaluated (see below).
Weight
Moisture (evaporation)
Automatic shutoff
Time
Timer mode:
The analysis ends as soon as the
specified time has elapsed.
Display Mode for Result
The following units can be selected for
displaying analysis results:
– Moisture %M
– Dry weight %S
– Ratio %MS
– Residual weight g
24
Print Intermediate Results
Intermediate results can be printed
either at user-definable intervals or by
pressing the r key.
Example: setting the following drying parameters
Heating temperature: 130°C
Start of analysis: without stability after the cover is closed
End of analysis: after 10 minutes
Display mode for result: moisture
Step Key (or instruction) Display
1. Turn on the analyzer eSelf-test runs
2. Select PRG: drying program
parameters
3. Confirm PRG 105
(the previously set temperature
is displayed; in this example, 105°C)
4. Set the heating temperature
(in this example: 130°C)
5. Confirm heating temperature
(the previously set analysis time
is displayed; in this example, 0.0 min)
6. Set the parameter for the
end of analysis; in this example,
10 minutes)
7. Confirm the “end of analysis”
parameter
8. Select the result display mode
(in this example, moisture)
repeatedly 130
0.0
repeatedly 10
or
%M
°
°
min
min
C
C
25
Step Key (or instruction) Display
9. Confirm the display mode
10. Select the start parameter or (in this example, W/o stability
after the cover is closed)
11. Confirm the start parameter
12. Select setting for printout repeatedly 0.0 of intermediate results (in this
example, no printout = 0.0)
13. Confirm setting for intermediate
printout of results
14. Save changes and exit menu
for drying parameter input
E
A
10
130
> 2 sec
min
min
C
°
26
Operation
Example: Analysis with Specified Drying Time
The specified drying time in the example is 10 minutes.
Heating temperature: 130°C
Start of analysis: Without stability after the cover is closed
End of analysis: After 10 minutes
Display mode: Moisture
Step Key (or instruction) Display
1. Switch on the moisture eSelf-test runs
analyzer
2. Set the drying parameters
(see “Setting the Drying
Parameters” in the chapter
entitled “Configuration”)
3. Open the sample chamber and
place an unused sample pan
on the pan support
4. Tare the sample pan: or
select TAR as needed
...and confirm
5. Distribute approx. 2 g sample
evenly on the sample pan
6. Close the sample chamber
The printout header is printed:
see next page
27
Step Key (or instruction) Display
The printout header is
--------------------
printed 23.08.2005 11:25 *)
Model MA35M-230N
*) Date and time included only Ser. no. 99992581
if a Sartorius printer model Ver. no. 00-33-01
YDP20-0CE is used ID
--------------------
Temp. 130 ,C
Start W/O STABI.
End 10.0 min
IniWt + 2.036 g
--------------------
Current moisture loss and elapsed
time are displayed (in this example,
0.36% moisture after 0.3 min)
Drying stops automatically
after 10 minutes
The footer of the printout
--------------------
is printed 10.0 + 10.90 %M
FinWt + 1.814 g
Name:
------------------- You can print the result
as often as you wish
10.0 + 10.90 %M
by pressing r
Printout when function canceled:
B 5.7 + 0.03 %M
(“B” stands for “Break”)
7. Clear the display
During and after the analysis you
can change the mode for display
and printout of results at any time
by pressing the
and keys.
28
Adjusting the Analyzer
Heating Element Adjustment
The procedure for adjusting the heating
element is described in the instructions
supplied with the YTM15MA temperature
adjustment set.
Weighing System Adjustment
To adjust the weighing system, perform
calibration and adjustment as described
in the following.
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 a level within specified
permissible error limits.
Features
Calibration is performed externally with
the following weight value:
– MA35: 30 g; see “Accessories,” order no.
YSS43-02
You can have calibration and adjust-
ment results documented as a ISO/GLPcompliant printout (see the page after
next for an example).
29
External Calibration and Adjustment with a Factory-Defined Weight
Externally calibrate and adjust the weighing system using a 30-g calibration weight
Step Key (or instruction) Display
1. Turn on the analyzer eSelf-test runs
2. Select CAL for calibration/
adjustment
3. Confirm CAL
4. Confirm again when Pb
is shown
5. Tare the weighing system
6. Select CAL again
7. Confirm CAL
30
Step Key (or instruction) Display
The prompt for calibration weight is displayed
8. Open the hinged cover
9. Place the 30-weight on the weighing system
Minus sign –: weight value too low
Plus sign +: weight value too high
No sign: weight value OK
The weight unit symbol (g) is displayed at the end of adjustment
Printout after calibration and
--------------------
adjustment 23.03.2017 10:51 *)
*) Date and time included only
if a Sartorius printer model
YDP20-0CE is used
Model MA35M-230N
Ser. no. 99992581
Ver. no. 00-33-01
ID
------------------- External calibration
W-ID
Nom. + 30.000 g
Diff. + 0.001 g
External adjustment
Diff. + 0.000 g
completed
------------------- Name:
--------------------
10. Unload the analyzer
Close the cover
11. Quit calibration/adjustment c
31
Interface Port
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.
Computer
Analyses and calculated values can be
transmitted to a computer for further
evaluation and for documentation.
! Warning When Using Pre-wired
RS-232 Connecting Cables:
RS-232 cables purchased from other
manufacturers often have pin assignments that are incompatible with
Sartorius products. Be sure to check the
pin assignments against the chart on
the next page before connecting the
cable, and disconnect any lines identified differently from those specified by
Sartorius (e.g., pin 11). Failure to do so
may damage or even completely ruin
your moisture analyzer and/or peripheral
device(s).
Preparation
For instructions on adapting the inter-
face port to the peripheral device, please
refer to the chapter entitled “Configura-
tion.”
To get the most from the versatile
characteristics of your moisture analyzer
with regard to documentation of results,
we recommend connecting a printer
from Sartorius. The resulting printouts
will contribute decisively to simplifying
GLP-compliant practices.
32
Female Interface Connector
25-position D-Submini (DB25S) with
screw lock hardware for cable gland
Required Male Connector
25-pin D-Submini (DB25S) with shielded
cable clamp assembly (Amp type 826 985-1C)
and fastening screws (Amp type 164 868-1).
Pin assignments in the 25-contact
RS-232 female connector
Pin 1: Signal ground
Pin 2: Data output (TxD)
Pin 3: Data input (RxD)
Pin 4: Not connected
Pin 5: Clear to send (CTS)
Pin 6: Not connected
Pin 7: Internal ground (GND)
Pin 8: Not connected
Pin 9: Not connected
Pin 10: Not connected
Pin 11: Rechargeable battery: charge voltage
+10 V (1 _out 25 mA)
Pin 12: Reset _Out *)
Pin 13: +5 V output
Pin 14: Internal ground (GND)
Pin 15: Not connected
Pin 16: Not connected
Pin 17: Not connected
Pin 18: Not connected
Pin 19: Not connected
Pin 20: Data terminal ready (DTR)
Pin 21: Not connected
Pin 22: Not connected
Pin 23: Not connected
Pin 24: Not connected
Pin 25: +5 V output
*) = Peripheral device restart
33
Error Codes
Error codes are displayed dynamically, for 2 seconds, or permanently. After a code is displayed
dynamically or for 2 seconds, the program returns automatically to the normal operating
mode.
DisplayCauseSolution
H
L or Err54
Err 01
Err 02
Err 03
Err 30
Err 31
Err 50
Err 53
Err 55
Err 79
Err 241,
Err 243
Err 2xx
Err 340
Err 342
The load exceeds the weighingUnload the pan support capacity
Load is below the weighing rangePlace the pan support on the
Data output not compatible with output
format
Calibration/adjustment condition
not met, e.g.,
– not tared
– the pan support is loaded
Calibration/adjustment could not be
completed within a certain time
Interface port for printer output
is blocked
Peripheral device not responding (interface handshake interrupted; XOFF, CTS)
Temperature compensation
overflow/underflow
Temperature compensation
not functioning
Output from weighing ADC too highContact Sartorius Service
Dryer adjustment data not foundContact Sartorius Service
Weighing system parameters (EEPROM)
defective
Internal errorContact Sartorius Service
Operating parameters (EEPROM)
incorrect
Operating parameters (EEPROM)
incorrect except adjustment parameters
weighing system
Change the configuration in the
Setup menu
Calibrate only when zero is displayed
Select TAR to tare
Unload the moisture analyzer
Allow the scale to warm up again and
repeat the adjustment
Have the port setting changed by
Sartorius Service
Send XON, release CTS
Contact Sartorius Service
Contact Sartorius Service
Switch the analyzer off and then
on again. If the error persists, contact
Sartorius Service
Contact Sartorius Service
Contact Sartorius Service
If any other errors occur, contact Sartorius Service.
Contact information: Please point your Internet browser to: http://www.sartorius.com
34
Care and Maintenance
Service
Regular servicing by a Sartorius Service
technician will extend the service life of
your analyzer and ensure its continued
accuracy of measurement. Sartorius can
offer you service contracts, with your
choice of regular maintenance intervals
ranging from 1 month to 2 years.
The optimum length of the service inter-
val depends on the operating conditions
at the place of installation and on your
requirements.
Repairs
Repair work must be performed by
trained service technicians. Any attempt
by untrained persons to perform repairs
may result in considerable 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
§Disconnecting the power supply:
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
35
Cleaning the Heating Unit and
Temperature Sensor
§ Open the hinged cover
! Danger: The terminals of the heating unit are under
live current
§Disconnect the power supply by unplugging 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 brush or a damp, lint-free cloth to clean the
tubular metal heating element.
36
Disposal
Safety Inspection
If there is any indication that safe
operation of the equipment is no longer
warranted:
§ Disconnect the power supply by unplug-
ging the power cord from the wall outlet
(mains)
> Lock the equipment in a secure place
to ensure that it cannot be used for the
time being
Safe operation of the equipment is no
longer ensured when:
– there is visible damage to the device
or power cord,
– the analyzer no longer functions proper-
ly,
- the equipment has been stored for a
relatively long period under unfavorable
conditions, or
– the equipment has been subjected to
rough handling during shipment.
In this case, notify Sartorius Service.
Maintenance and repair work may be
performed only by service technicians
who are authorized by Sartorius and
who:
– have access to the required service and
maintenance manuals, and
– have attended the relevant service
training courses.
A qualified Sartorius service technician
should determine which tests are performed
at what intervals, based on ambient and
operating conditions. Inspections must be
performed at least once a year.
The packaging is made of
environmentally friendly
materials that can be used as
secondary raw materials.
Packaging that is no longer
needed can be disposed
of in Germany free of charge via the
VfW dual system (contract number
D-59101-2009-1129). Otherwise, dispose
of the material at your local waste
management facility according to the
applicable regulations. The equipment,
including accessories and batteries, does
not belong in your regular household
waste. EU legislation requires its Member
States to collect electrical and electronic
equipment and dispose of it separately
from other unsorted municipal waste
with the aim of recycling it. For disposal
or recycling, please contact our service
staff on site. In addition, the partners
listed on the following website are
available within the EU:
1) Go to http://www.sartorius.com.
2) Select “Services” under “Lab Products
& Services.”
3) Then select “Information on Disposal.”
4) Addresses for local Sartorius disposal
contacts can be found in the PDF files
available for download on this page.
Devices contaminated with hazardous
materials (NBC contamination) will not
be accepted for repair or disposal.
Service Address for Disposal
Detailed information, including service
addresses for returning your device
for repair or disposal, can be found on
our website (www.sartorius.com) or
requested from a Sartorius Service
Center.
w
37
Overview
Specifications
Weighing capacity (Max)35 g
Typical reproducibility of the
weighing system
Readability1 mg; 0.01%
Typical sample quantity5 – 15 g
Display of results% moisture
Shutoff parameteroptional:
Sample heatingEven sample heating capability with an IR dark radiator
Access to sample chamber– through hinged, flip-up cover with wide opening angle
Draft shieldIntegrated draft shield
For conformity with FDA/HACCP regulations Aluminum panels (in place of glass panels)
Operating temperature range and setting40°C to 160°C (104°F to 320°F), adjustable in 1°C increments
Operator guidanceSymbols representing corresponding functions
Heating programStandard drying
Measuring program1 program saved in a non-volatile memory (freely selectable
Memory for data storageResults are saved until the start of the next measurement
Log printout– Inalterable standard configuration GLP report for
Data interfaceRS232 C-S/VA24-V28, 7 data bits (ASCII) 1 parity bit
Monitoring and control of the accuracy of
the analyzer as inspection, measuring and
test equipment
Housing dimensions (W × D × H)224 × 366 × 191 mm
Net weightapprox. 5.8 kg
Power requirements (supply voltage)230 V or 115 V (depending on the model) (–15% … +10%)
Frequency50 – 60 Hz
Fuses2 (zero conductor/phase), 6.3 A, time-lag (slow-blow),
Power consumptionmax. 400 VA
38
Starting at an initial sample weight of approx. 1 g: ± 0.2%
Starting at an initial sample weight of approx. 5 g: ± 0.05%
Installation Category II, Pollution Degree 2, Continuous operation, Class I equipment.
DQD 507 Rev. 2012-05-22Page: 1
- ELECTRICAL EQUIPMENT FOR LABORATORY USE - Certified to US
Standards
- LABORATORY EQUIPMENT - Electrical
42
Certificate:
Project:
APPLICABLE REQUIREMENTS
CSA Standards:
CAN/CSA-C22.2 No. 61010-1-04 - Safety Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use, Part 1: General Requirements
UL Standards:
UL Std. No. 61010-1 (2nd Edition) - Safety Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use - Part 1: General Requirements
2251693
2706857
Master Contract:
Date Issued:
167555
March 19, 2014
DQD 507 Rev. 2012-05-22Page: 2
43
Last updated:
The information and figures contained in these
instructions correspond to the version date
specified below.
Sartorius reserves the right to make changes
to the technology, features, specifications and
design of the equipment without notice.
Masculine or feminine forms are used to
facilitate legibility in these instructions and
always simultaneously denote the other
gender as well.
Copyright notice:
This instruction manual, including all of its
components, is protected by copyright.
Any use beyond the limits of the copyright law
is not permitted without our approval.
This applies in particular to reprinting,
translation and editing irrespective of the type
of media used.