Sartorius Micro M 500 P User manual

Sartorius Micro

M 500 P

Installation and Operating Instructions

98648-000-73

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

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

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.

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.

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

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.

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.

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.

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).

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