VWR VWR B2 Series User manual

User Manual
VWR B2 SERIES BALANCES
Rev B2-05

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TABLE OF CONTENTS
1.General Information....................................................................................4
1.1. INTENDED USE......................................................................................4
1.2. INAPPROPRIATE USE ..............................................................................4
1.3. WARRANTY............................................................................................4
2. UNPACKING AND INSTALLATION ................................................................4
2.1. STANDARD DELIVERY COMPONETS LIST...................................................4
2.2. UNPACKING...........................................................................................4
2.3. PLACE OF USE AND ASSEMBLY ................................................................5
2.4. BALANCE ASSEMBLY...............................................................................5
2.5. BALANCE LEVELING................................................................................8
2.6. POWERING THE DEVICE..........................................................................8
3. KEYBOARD – BUTTON FUNCTIONS ..............................................................9
4. START-UP..................................................................................................10
4.1. TEMPERATURE STABILIZATION PERIOD.................................................. 10
4.2. USER MENU......................................................................................... 10
5. BALANCE OPERATION – GENERAL INFORMATION.....................................12
5.1. BALANCE ZEROING .............................................................................. 12
5.2. BALANCE TARING................................................................................. 12
5.2.1. MANUAL TARE DETERMINATION.............................................................12
5.2.2. DELETING TARE ...................................................................................12
5.3. UNITS................................................................................................. 13
5.4. TEMPORARY MEASURING UNIT .............................................................. 13
5.5. UNITS ACCESSIBILITY.......................................................................... 13
5.6. START UNIT SELECTION ....................................................................... 13
5.7. CUSTOM UNIT...................................................................................... 14
6. WORKING MODES- GENERAL INFORMATION.............................................14
6.1. RUNNING WORKING MODE.................................................................... 15
6.2. WORKING MODE ACCESSIBILITY ........................................................... 15
6.3. WORKING MODE PROFILE ..................................................................... 15
6.4. WORKING MODE SETTINGS- READING ................................................... 16
6.4.1. FILTER LEVEL SETTING.........................................................................16
6.4.2. VALUE RELEASE...................................................................................17
6.4.3. AUTOZERO..........................................................................................17
6.4.4. LAST DIGIT DISPLAY ............................................................................18
6.4.5. BALANCE AMBIENT CONDITIONS ...........................................................18
6.5. WORKING MODE SETTINGS- AUTOTARE ................................................. 18
6.6. WORKING MODE SETTINGS- PRINT MODE .............................................. 19
6.7. WORKING MODE SETTINGS- INFORMATION............................................ 21
6.8. WORKING MODE SETTINGS- Non-Standard INFORMATION........................ 21
6.9. WORKING MODE SETTINGS- F shortcut keys........................................... 22
7. CALIBRATION............................................................................................23
7.1. CALIBRATION MENU SETTINGS.............................................................. 23
7.2. EXTERNAL CALIBRATION....................................................................... 23
7.2.1. EXTERNAL CALIBRATION.......................................................................23
7.2.2. USER CALIBRATION..............................................................................23
7.3. CALIBRATION REPORT PRINTOUT........................................................... 24

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8. WEIGHING ................................................................................................24
8.1. UNDER-PAN WEIGHING ........................................................................ 25
9. PARTS COUNTING .....................................................................................26
9.1. SETTING REFERENCE MASS: MASS DETERMINATION FOR THE SAMPLE OF
KNOWN QUANTITY....................................................................................... 26
9.2. SETTING REFERENCE MASS: ENTERING MASS VALUE............................... 27
10. DEVIATIONS .............................................................................................28
10.1.SETTING THE REFERENCE MASS: WEIGHING REFERENCE SAMPLE............. 28
10.2.SETTING THE REFERENCE MASS: ENTERING THE MASS VALUE.................. 28
11. DENSITY OF SOLIDS..................................................................................29
12. DENSITY OF LIQUIDS................................................................................31
13. ANIMAL WEIGHING...................................................................................32
13.1.RUNNING THE PROCESS MANUALLY ....................................................... 33
13.2.RUNNING THE PROCESS AUTOMATICALLY............................................... 34
14. MISCELLANEOUS PARAMETERS.................................................................34
15. DETERMINIG PRINTOUT CONTENT............................................................36
15.1.CALIBRATION REPORT.......................................................................... 36
15.2.HEADER, FOOTER, GLP PRINTOUTS........................................................ 37
15.3.NON-STANDARD PRINTOUTS................................................................. 38
15.4.VARIABLES.......................................................................................... 39
16. COMMUNICATION......................................................................................40
16.1.RS 232 PORT SETTING (COM)................................................................ 40
17. DEVICES....................................................................................................40
17.1.COMPUTER.......................................................................................... 40
17.2.PRINTER ............................................................................................. 41
18. COOPERATION WITH DEVICES..................................................................42
18.1.TRANSFERRED DATA FORMAT................................................................ 43
18.2.FORMAT OF DATA SENT ON PRESSING PRINT BUTTON ............................. 43
19. COMMUNICATION PROTOCOL....................................................................44
19.1.LIST OF COMMANDS............................................................................. 44
20. APPENDIX .................................................................................................53
20.1.DIMENSIONS....................................................................................... 53
20.2.CONNECTORS...................................................................................... 53
20.3.CONNECTION CABLES - DIAGRAMS........................................................ 54
20.4.MAINTENANCE ACTIVITIES.................................................................... 54
21. ERROR MESSAGES .....................................................................................56

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1.GENERAL INFORMATION
1.1. INTENDED USE
B2 series balances are designed to provide accurate measurement of weighed loads, performed
under laboratory conditions. It is intended for application as a non-automatic weighing instrument
only, i.e. the material to be weighed is manually and carefully placed in the center of the weighing
pan. Weighing result should be read only after stable reading has been obtained.
1.2. INAPPROPRIATE USE
Do not use the balance for a dynamic weighing. Even if small quantities of weighed material are
added or removed from the weighing pan of the instrument, the reading should be taken only after
stabilization of the measurement results. Do not place any magnetic materials on the weighing pan,
as this can cause damage to the measuring system of the instrument.
Be sure to avoid impact shock and overloading the balance in excess of the prescribed maximum
measuring range (max capacity), minus any possible tare weight that has been applied.
Never use the balance in an environment where explosion is possible. This balance has not been
adjusted for operation in explosive areas.
There must not be any modification made to the balance.
1.3. WARRANTY
Warranty is invalid for the following:
•non-observation of the guidelines of this user manual,
•use of the balance other than specified in this manual,
•alteration to or opening of the device,
•overloading of the measuring instrument.
2.UNPACKING AND INSTALLATION
2.1. STANDARD DELIVERY COMPONETS LIST
•Balance and components shown in Section 2.4 depending on balance model
•Warranty Card
•User Manual
2.2. UNPACKING
To unpack the system, follow the diagram below-

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2.3. PLACE OF USE AND ASSEMBLY
•The balance should be stored and used in locations free of vibrations and shakes, free of
air movement and dust.
•Ambient air temperature should not exceed the range of: +10 °C ÷ +40 °C.
•Ambient relative humidity should not exceed 80%.
•During balance operation, ambient temperature in the weighing room should not change
rapidly.
•The balance should be located on a stable wall console desk or a stable working table
which is not affected by vibrations and distant from heat sources.
•Take special precaution when weighing magnetic objects, as part of the balance is a
strong magnet. Should such loads be weighed, use under-pan weighing option, which
removes the weighed load from area influenced by the balance’s magnet. The hook for
under-pan weighing is installed in balance’s base.
•Keep all package element should your device be transported in the future. Remember that
only original packaging can be used for shipping purposes. Prior to packing, uncouple any
cables, remove any separable components (weighing pan, shields, inserts). Pack the
device components into an original packaging. The original packaging protects the
equipment against potential damage during transportation.
2.4. BALANCE ASSEMBLY
Model: VWR-64B2, VWR-124B2, VWR-214B2
Components-
Installation-
1)Remove the transport lock– gently press the transport lock and turn it accordingly to
<OPEN>, keep the transport lock should your balance be transported in the future.

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2)Check grounding spring to insure it is in the appropriate location. Make sure that the grounding
spring juts slightly out of the hole.
3)Install components following diagram below:
i. Bottom insert
ii. Centering ring [embossment side up]
iii. Weighing pan
Model: VWR-203B2, VWR-403B2, VWR-503B2
Components:
Installation:
1)Check that the grounding spring is in the correct location, the spring juts slightly out of the hole.

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2)Install components following the diagram below:
i. Bottom Insert
ii. Rubber feet (grounding foot can be in any location on the balance)
iii. Weighing pan
Model: VWR-4002B2, VWR-5002B2
Components:
Installation:
1)Install components following the diagram below:
i. Draft Shield
ii. Weighing pan

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2.5. BALANCE LEVELING
It is necessary to level the balance prior to plugging it in. To level the balance, turn its feet until
the air bubble is in the center position.
The balance should firmly rest on a surface, each of the feet must be supported.
2.6. POWERING THE DEVICE
Balance can be connected to the mains only with a power adapter that comes standard with the
particular model. Nominal power supply of the power adapter (specified on the power adapter data
plate) should be compatible to the power from the mains.
Plug the balance to the mains – connect the power adapter to the socket, next connect its connector
to port located at the back of the balance housing.
Test of the display unit takes place right after connecting the balance to the power, all the elements
and pictograms are backlit for a short time. Next, the name and the program number appears (please
note, software version number may be different than what appears below)
The indication then goes to ZERO (displayed reading unit depends on the balance). If the indication
is different than zero, please press button.

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3.KEYBOARD – BUTTON FUNCTIONS
Press to switch the balance ON/OFF. If switched off, balance
components other than the display are powered, and balance is in
stand-by mode.
Press to access data stored in a database: user, product, tare.
Press to enter directly the active working mode settings.
Press to select working mode.
F5 button of the computer keyboard.
Press to change measuring units.
PRINT/ENTER button
Press to send measurement to a printer or a computer (PRINT).
Press to confirm selected parameter value or function (ENTER).
Press to Zero the balance
Press to Tare the balance
Press to start adjustment / calibration process immediately.
Press to enter the main menu of a balance.
Press to operate balance menu or change parameter value.

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4.START-UP
When plugged to mains, the balance displays program name and number, next it proceeds to the
weighing mode.
4.1. TEMPERATURE STABILIZATION PERIOD
Before start of measuring processes, it is necessary to wait until the balance reaches thermal
stabilization.
For balances that were stored in much lower temperatures before plugging to mains (e.g. during
winter period), thermal stabilization period shall take at least 4 hours for balances with d=0.001g and
d=0.01g balances, and 8 hours for balances with d=0.1mg balances. During the thermal stabilization,
the indications on the display panel can change.
It is recommended that ambient temperature changes at place of use were insignificant (slow to
change).
4.2. USER MENU
Menu is divided into 9 basic function groups. Each group has an individual name starting with
a capital letter, P.
P1 CALIBRATION
P1.1
EXT. CALIB.
|
[external adjustment]
P1.2
USER CALIBRATION
|
[user adjustment]
P2 WORKING MODES
P2.1
ACCESSIBILITY
|
[settings for the accessibility of individual modes
while working with the balance]
P2.2
WEIGHING
|
[setting for the function weighing]
P2.3
COUNTING PCS
|
[settings for the function counting pieces]
P2.4
DEVIATIONS
|
[settings for the function deviat
ions % against
the mass of the standard]
P2.5
DENS. OF SOLIDS
|
[settings for determining density of solids]
P2.6
DENS OF LIQUIDS
|
[settings for determining density of liquids]
P2.7
ANIMAL WEIGHING
|
[settings for the function animal weighing]
P3 COMMUNICATION
P3.1
COM1
|
[transmission parameters port COM 1]
P4 DEVICES
P4.1
COMPUTER
|
[PC connection port]
P4.2
PRINTER
|
[printer connection port]