Sartorius Micro M 500 P User manual

Sartorius Micro
M 500 P
Installation and Operating Instructions
98648-000-73

2
1 Weighing pans
2 Pan support
3 Interior draft shield
4 Interface
5 Power receptacle
6 Level indicator
7 Leveling foot
8 Print control
9 Menu access switch
10 Tare control
11 ON/OFF button
12 Weight display
13 Manufacturer's label

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Contents
Page
About the Product (Warranty) 4
Storage and Shipping Conditions 5
Equipment Supplied 6
How to Handle Your Microbalance 7
Installation Instructions 8
Ambient Conditions 8
Connecting Electronic Devices (Peripherals) 8
Startup 9
Connecting the Balance to Line Power 9
Voltage Selection 9
Safety Precautions 11
Leveling the Balance using the Level Indicator 11
Operation 12
Weight Display 12
Turning the Display On and Off 13
Self-Test 13
Weighing 13
Taring 13
Calibration 14
Balance Operating Program 15
How to Access the Menu of the
Balance Operating Program 15
How to Read a Program Menu Code (List Mode) 15
How to Change a Program Menu Code
(Change Mode) 16
Menu of the Balance Operating Program 17
Troubleshooting Guide 18
Accessories 19
Care and Maintenance 20
Cleaning 20
Safety Inspection 20
Data Interface 21
Specifications 22

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About the Product (Warranty)
With this Sartorius Balance you have acquired a high-quality
electronic weighing Instrument that will ease your daily work-
load.
Please read these Installation and operating instructions care-
fully before operating your new balance.
Pursuant to the German Directive for the Implementation
of Regulations for Prevention of Accidents "Elektrische
Anlagen und Betriebsmittel (VBG 4)" [Electrical
Installations and Equipment] of April 1986, it is hereby
certified that the equipment delivered, "Electronic
Microbalance, model M 500 P," is manufactured and
tested in compliance with the following DIN/VDE
regulations
DIN IEC 348/VDE 0411 Safety requirements for
electronic measuring apparatus
DIN IEC 380/VDE 0806 Safety of
electrically energized Office
machines
DIN IEC 601/VDE 0750 Safety of medical electrical
equipment
and Article 10 of the Low Voltage Directive (73/23/EEC)
issued on February 19, 1973 by the European
Community. When 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.

5
Storage and Shipping Conditions
Allowable storage temperature range: -40°C...+70°C
-40°F... 158°F
The packaging of the balance has been designed to ensure that
the balance will not be damaged even if it is dropped from a
height of 80 cm (about 32 inches).
After unpacking the balance, please check it immediately for
any visible damage as a result of rough handling during ship-
ment. If this is the case, proceed as directed in the section enti-
tled "Safety Inspection."
Save all parts of the packaging and the box for shipping
your balance to prevent any damage during transportation.
In addition, please disconnect all connecting cables (e.g.
the plug on the power supply) to avoid damaging them.
Do not expose the balance unnecessarily to extreme tempera-
tures, moisture, shocks, blows or vibrations.

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Equipment Supplied
The equipment supplied consists of the components pictured on
the left:
— balance
— draft shield
— portable power supply
— dust cover
The kit of Standard accessories contains the following:
1 Standard weighing pan
1 special pan for weighing filaments
1 pan support
1 interior draft shield
1 calibration weight, 500 mg (accuracy class: E2)
1 brush
1 pair of forceps
1 chamois

7
How to Handle Your Microbalance
Before you Start weighing, please observe the
following:
After plugging your balance into a wall outlet, make sure to al-
low for >2 hours' warmup.
Working with a microbalance requires a steady hand and a
smooth, uninterrupted technique.
Use forceps or other suitable Utensils to load your sample on
the pan.
Do a few trial weighing procedures before you begin with actual
weighing of your sample.
lf the weighing chamber has not been opened for a relatively
long period, it may have a temperature which is different from
that of the balance's surrounding environment. Therefore, as
soon as you open the weighing chamber, a change in the tem-
perature will inevitably occur. This change in temperature may
show up as a change in the weight readout. In this case, we
recommend that before you begin with an actual repetitive
weighing procedure you open and dose the weighing chamber
at the same rate as you will be doing during such a procedure.
Carefully place you sample on the pan and, if necessary, re-
move it along with the pan. After the weighing chamber is
closed, the weight readout, as a rule, will stabilize after 30 sec.
at the latest.
The accuracy of the resulting weight readouts will increase as
the degree of consistency is increased for successive weighing
procedures.

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Installation Instructions
Ambient Conditions
Microbalances are highly precise and very sensitive measuring
Instruments. Therefore, please choose a suitable place to set
up your balance. lt should not be exposed to the following:
- Heat radiation
- Aggressive/corrosive substances
- Vibrations
- Drafts
Use a balance table or a wall console (see "Accessories") to set
up your balance.
Do not expose the balance to extreme moisture over long peri-
ods. Moisture in the air can condense on the surfaces of the
balance whenever a cold balance is brought to a substantially
warmer place.
lf you need to transfer the balance to a warmer area, make sure
to condition it for a few hours at room temperature. The best
way to prevent moisture condensation is to leave the balance
connected to line power. The components used in the balance
are rated to at least class KSF according to DIN 40040.
Your Sartorius Balance will provide accurate readouts even
when it is exposed to unfavorable ambient conditions.
You can adapt the balance to your requirements simply by
changing the menu code settings in the balance operating pro-
gram.
For this purpose, read pages 14 through 16
Connecting Electronic Devices (Peripherals)
Always unplug the power supply before you connect or discon-
nect devices to or from the interface ports.

9
Startup
Install components (3 - 1) in the weighing chamber.
Connecting the Balance to Line Power
Your balance is powered by a portable power supply unit. Use a
screwdriver to adjust the voltage selector on the power supply
unit to the setting of your local line voltage (either 115 or 230
volts).
Voltage Selection
Make sure that the voltage rating printed on this unit is identical
to your local line voltage rating.
Write the new voltage setting on the manufacturer's label.
lf the voltage rating specified on the power supply or the plug
design does not match the rating or Standard you use, please
contact your Sartorius dealer.
Important Note
Only use original Sartorius power supplies identified by the Sar-
torius label. Use of power supplies made by other manufactur-
ers, even if these power supplies have a registered approval
rating from a national testing laboratory, requires the consent of
a certified Sartorius technician.
Plug the cord line into the power receptacle. Secure the
connection by tightening the knurled collar. Now plug the power
supply unit into a wall outlet.

10
Safety Precautions
The power supply rated to Class 2 (double insulated) can be
plugged into a wall outlet without taking any additional safety
precautions. The pole of each Output voltage is connected to
the balance housing which can be grounded for Operation.
The interface (see "Interfacing Devices" on page 19 in addition)
is also electrically connected to the balance housing (ground).
Leveling the Balance using the Level Indicator
At the point of use, level the balance using the leveling feet (7)
so that the air bubble is centered within the circle of the level in-
dicator (6).