VWR International VWR-E Series User manual

VWR-E Series Balances
Operation Manual

TABLE OF CONTENTS
SAFETY PRECAUTIONS…………………………………………………… 1
GETTING STARTED……………………………………………………….... 1
INSTALLATION & SET-UP………………………………………………..... 2
POWER CONNECTION & BATTERY OPERATION…………………….. 2
LEVELING……………………………………………………………………... 3
CALIBRATION………………………………………………………………… 3
WEIGH MODE SETTINGS……………………………………………........... 4
BACKLIGHT SETTINGS……………………………………………………… 4
AUTO OFF SETTINGS………………………………………………………… 4
TARE FUNCTION………………………………………………………………. 5
CARE & MAINTENANCE…..…………………………………………………. 5
ERROR MESSAGES & TROUUBLESHOOTING GUIDE……..………….. 6
INTERFACE SETTINGS………………………………………………………. 7
RS232 DATA INTERFACE ...……………………………………….….……… 8
SERVICE & TECHNICAL SUPPORT………………………………………… 9
DISPOSAL……………………………………………………………………….. 9
CE COMPLIANCE & MARKING…..…………………………………………..10
SPECIFICATIONS……………………………………………………………….11
FEATURES……………………………………………………………………….12
INSTRUMENT DIAGRAM………………………………………………………12
i

Congratulations and thank you for selecting a VWR-E Series Balance, we
appreciate your business. Your balance was designed and manufactured to
give you years of service.
SAFETY PRECAUTIONS
-Check the instrument for any visible signs of damage before you apply
power.
-Ensure the power supply is compatible with your instrument AND the local
line voltage.
-Do NOT operate in Hazardous Locations. Check with your safety Officer
regarding any questions or concerns.
-Do not locate in areas where corrosive gases are present.
-Make sure no liquid enters the housing. Use a damp cloth to clean the
instrument.
-Avoid exceeding/overloading the weigh capacity or dropping samples
onto the weigh pan. Weight overload and shock may damage the
instrument and void the warranty.
-When utilizing the battery operation mode, do not mix batteries.
Replace all six batteries at the same time. If the instrument will
not be used for an extended period of time, remove all batteries
from the instrument. Failure to do so may cause leakage and damage the
instrument.
GETTING STARTED
First, check the contents of your shipping carton for the following:
-VWR-E Series Balance
-Weigh Pan and Sub Pan
-Operation Manual
-Power Adapter
Please read your operation manual and follow the instructions for installing
your balance. Please keep your packaging for future transport and
remember to return your Warranty Card.
Page 1

INSTALLATION & SETUP
- Choose a location that is free from the influences of the following:
•Drafts: Fans, Heat/Air Duct, Doorways or High Traffic Areas.
•Vibrations.
•Extreme Temperature Fluctuations: Sunlight, Ovens, or Environments
with Wide Temperature Fluctuations
•Voltage Fluctuations. Do Not Share Current with Other Instruments
that Draw Voltage in an Inconsistent Manner such as Fluorescent
Lights, Centrifuges and the like.
- Place Instrument on a Level, Rigid Surface.
- Level the Instrument.
- Allow 30 Minutes for Warm-up.
- Calibrate. All VWR-E Series are calibrated at the factory prior to shipment.
Transportation of the instrument plus the differences in barometric pressure,
humidity and ambient temperate conditions require calibration at the point of
use. Calibrate regularly, at least once a week, to ensure accurate weighing
results.
AC POWER CONNECTION & BATTERY OPERATION OPTION
- When connecting power use the original AC adapter supplied with the
balance. Using an unapproved power supply may damage the instrument
and void the warranty.
- Connect the plug to the instrument.
- Ensure the power supply is compatible with your instrument AND the local
line voltage.
- Connect adapter to the power outlet.
- Original Power Supply:
VWR-1002E, 3002E, 3001E & 6001E: VWR-10001E, 20001E
Input: 100-240VAC, 50-60Hz, 0.2A 120VAC, 50-60Hz, 120mA
Output: 12VDC, 500mA 10.5VDC, 500mA
Polarity: Inside = -, Outside = +
Battery:6 AA Internal, Rechargeable
Do not mix batteries. Replace all six batteries at the same time. If the
instrument will not be used for an extended period of time, remove all
batteries from the instrument. Failure to do so may cause leakage and
damage to the instrument.
Page 2

LEVELING
For accurate calibration and weigh results level the balance upon installation
and any time the instrument is moved to a new location.
Ensure the two rear feet are fully retracted and use the two front feet to level
the balance.
CALIBRATION
Calibration is required at installation (see Installation & Set-up) and at regular
intervals thereafter. Calibrate if the balance is moved to a new location.
1. Allow a 30-minute warm-up period.
2. Press Tare to zero balance – if required.
3. Remove all items from weigh pan.
4. Press CAL Key
The appropriate calibration weight for your balance (see chart below) will
“flash” on the display.
5. Place calibration weight on the weigh pan.
6. When calibration is complete the balance will display the selected
calibration weight value, beep and return to the weigh mode.
Calibrate on a regular basis, we recommend once a week, or more.
Calibration Weight Values
VWR-1002E1000g ASTM Class 1*
VWR-3002E2000g ASTM Class 4*
VWR-3001E2000g ASTM Class 4*
VWR-6001E5000g ASTM Class 4*
VWR-10001Ex 25000g ASTM Class 4*
VWR-20001Ex 25000g ASTM Class 4*
* Or Better
Page 3

WEIGH MODE SETTINGS
THE VWR-E Series offers sixteen modes of measurement. Press the UNIT
KEY to toggle between weigh modes. The > indicator inside the display will
highlight the selected weigh mode.
VWR-E SERIES Weigh Modes:
g, oz, lb, dwt, ct, ozT, tlT, tlH, tlJ, gn, dr, mm, tola, gsm, tar, tmr
BACKLIGHT SETTINGS
All VWR-E Series balances come with an adjustable backlight display (on or
off). The factory default setting is on. However, should you wish to
deactivate the backlight feature:
Press ON/OFF Key to turn the power off, press again to turn power on. When
instrument displays ---------.
Press TARE KEY until A. OFF appears on the display.
Press UNIT KEY once L. ON will appear on the display. To toggle between
Backlight On (L_ON) and Backlight Off L_OFF) Press TARE KEY.
Press ON/OFF to turn the power off, Press ON/OFF again to turn on the
power and the scale return to the weighing mode.
AUTO SHUTOFF SETTINGS
All VWR-E-Series balances come with an AUTO OFF feature, typically used
in the battery operation mode. The AUTO OFF feature is deactivated at the
factory. However, should you wish to activate the Auto Off feature:
Press ON/OFF Key to turn the power off, press again to turn power on. When
instrument displays ---------.
Press TARE KEY until A. OFF appears on the display. To toggle between
AUTO ON (A. ON) and AUTO OFF (A. OFF) Press TARE KEY. AUTO ON
(A. ON) indicates auto shut off function is active.
Press ON/OFF to turn the power off, Press ON/OFF again to turn on the
power and return to the weighing mode.
Page 4

TARE FUNCTION
TARE is defined as net weight. Should you wish to use a beaker, flask or
some other container for your sample simply place the container on the weigh
pan and press the TARE KEY. Please note that any container that is “tared”
will decrease the remaining capacity available on the balance by the weight of
the container.
If you do not use a container for weighing verify the reading is "0" before
placing a sample on the weigh pan. If not, press TARE KEY to display "0".
CARE & MAINTENANCE
- Unplug the instrument from the power source and remove all batteries from
the battery compartment.
- Wear appropriate safety protection.
- Clean the instrument inside hood when appropriate.
- A damp cloth is recommend for basic cleaning. Do not use solvents
on the instrument housing, sub-pan, keypad, power cord and power
jack.
- Make sure no liquid enters the instrument housing.
- Handle with care to avoid damage to the weigh cell.
- Consult with your safety offer with any questions or concerns.
Page 5

ERRROR MESSAGES & TROUBLESHOOTING GUIDE
ERROR CODE ISSUE SOLUTION
Blank Display Power Check Adapter & Outlet
ERR-0 Overload Capacity Exceeded or
Damaged Weigh Cell
ERR-2 Zero Tracking (weight Remove All Weight From
on weigh pan during Weigh Pan and Sequence
power on sequence) Power
Stainless Steel Weigh Reassemble with Weigh
Pan Not Assembled at Pan, Sub Pan and
Calibration Calibrate
ERR-5 Internal Signal Weigh Pan Alignment
Unstable Ensure Weigh Pan & Draft
Ring Placement are Correct –
Nothing Touching
Unstable Power – Check Power
Supply/Transformer
ERR-C Calibration Error Repeat Calibration Process
Incorrect Weight Ensure Correct Calibration Weight
Is Used – See Page 3
ERR-L Calibration Error Repeat Calibration
Process
No Weight Placed
On Weigh Pan
ERR-E Memory Error Cycle Power (On/Off Switch)
: Low Battery Replace Batteries
Indicator 6 AA, Replace all
Batteries at Same Time
Page 6

INTERFACE SETTINGS
All VWR-E Series Balances come complete with RS232 interface. Below you
will find the factory settings and programming instructions for the optional
settings for the Print (send), Baud Rate, Parity and Stability commands.
1. Press ON/OFF Key to turn power off, press again to turn power on. When
instrument displays ---------
2. Press PRINT: b (Baud Rate) will appear in the display.
3. Press TARE to select among 1200, 2400, 4800, 9600* Baud
4. Press UNIT to select Parity settings, P NONE* will appear in the display.
5. Press TARE to select among ODD, EVEN, NONE.
a) ODD = 7 data bits with odd parity.
b) EVEN = 7 data bits with even parity.
c) NONE* = 8 data bit without parity.
6. Press UNIT to enter PRINT/SEND settings; nwill appear in the display.
7. Press TARE to select among
a) CON, continuous print/send (1 per second)
b) OFF, serial data output disabled,
c) KEY*, manual mode by pressing PRINT
d) STB, automatic print when reading is stable
8. To save settings Press ON/OFF to turn the power off, Press ON/OFF
again to turn on the power and return to the weighing mode.
* Factory Default Settings
Page 7

RS232 DATA INTERFACE
1. Connector: DB9
BALANCE PC
2 2
3 3
5 5
2. Transmissions Settings
Mode: Simplex Asynchronous Serial Baud Rate: 9600
Data Bit: 8 Parity Bit: None
Stop Bit: 1 Data Format: ASCII
3. Transmission Information Format：20 Byte ，blank=20H
1~2
3
4~13
14~18
19
20
ʻW: ʼ
P
DATA
UNIT
CR
LF
W: Start of Data Transmission=57H+3AH
P : Polarity ʻ+ʼ= 2BH = Positive ʻ-ʼ= 2DH =Negative
DATA: ʻ12.345ʼ= 20H+20H+20H+20H+31H+32H+2EH+33H+34H+35H
UNIT: ʻgʼ=67H+20H+20H+20H+20H
ʻoz ʼ=6FH+7AH+20H+20H+20H
ʻlbʼ=6CH+62H+20H+20H+20H
ʻdwtʼ=64H+77H+74H+20H+20H
ʻozt ʼ=6FH+7AH+74H+20H+20H
ʻct ʼ=63H+74H+20H+20H+20H
ʻtl.Tʼ=74H+6CH+2EH+54H+20H
ʻtl.Hʼ=74H+6CH+2EH+48H+20H
ʻtl.J ʼ=74H+6CH+2EH+4AH+20H
ʻGNʼ=47H+4EH+20H+20H+20H
ʻdrʼ=64H+72H+20H+20H+20H
ʻMMʼ=4DH+4DH+20H+20H+20H
ʻtolaʼ=74H+6FH+6CH+61H+20H
ʻgsmʼ=67H+73H+6DH+20H+20H
ʻT/A/Rʼ=54H+2FH+41H+2FH+52H
ʻT/M/Rʼ=54H+2FH+4DH+2FH+52H
ʻpcsʼ=50H+43H+53H+20H+20H
CR: = 0DH
LF: = 0AH
Page 8

SERVICE AND TECHNICAL SUPPORT
If you have ANY questions or require technical, application or service support
please contact the VWR Balance Hot Line at 1-844-724-2100.
Please note that VWR International, LLC and affiliates cannot take back any
instrument that has been exposed to biological or hazardous material
contamination for replacement, credit, repair or disposal.
DISPOSAL
Please consider the environment when disposing of your instrument and the
packing material. Please recycle all environmentally friendly waste. Please
contact your local government agency, facilities manager or a commercial
disposal operator on the proper disposal of the instrument, power supply and
batteries.
Page 9

CE Compliance & Marking
This instrument complies with European Standards and EC Directives:
Electromagnetic Compatibility (EMC) Council Directive 89/336/EEC
Applicable European Standards:
Limitation of Emissions in accordance with standard EN 61326-1 Class B for
residential areas.
72/23/EEC “Electrical Equipment Design within Certain Voltage Limits”
Applicable European Standards:
EN 60950
Safety Requirements for electrical equipment for measurement, control and
laboratory use Part1: General requirements.
Note:
Modification of this instrument in any manner will void the warranty. The
owner/operator is responsible to check, and if necessary, correct any
modifications required in accordance to the standards listed above for
immunity to interference. Operating standards for this instrument are
available upon request.
Page 10

SPECIFICATIONS
Model
Capacity
Readability
Repeatability
(s)
Linearity
Tare Range
VWR Cat. No.
VWR-1002E
1000g
0.01g
0.01g
0.02g
0 to 1000g
10204-990
VWR-3002E
3000g
0.01g
0.01g
0.03g
0 to 3000g
10204-992
VWR-3001E
3000g
0.1g
0.1g
0.2g
0 to 3000g
10204-994
VWR-6001E
6000g
0.1g
0.1g
0.2g
0 to 6000g
10204-996
VWR-10001E
10,000g
0.1g
0.1g
0.2g
0 to 10,000g
10204-998
VWR-20001E
20,000g
0.1g
01.g
0.2g
0 to 20,000g
10205-000
Common Specifications:
Pan Size:(W x L)
VWR-1002E:135 x 120mm (5.3 x 4.7in)
VWR-3002E, 3001E, 6001E:170 x 180mm (6.7 x 7.1in)
VWR-10001E, 20001E:200 x 215mm (7.9 x 8.5in)
Stabilization Time:3 Seconds
Operating Temperature: 5C to 40C (41-104F)
Power Requirements:
Input: 100-240VAC, 50-60 Hz, 0.2A
Output: 12VDC, 500 mA
Polarity: Inside = Negative (--),
Outside = Positive (+)
Battery Mode: 6 AA Internal, Rechargeable
Do not mix batteries. Replace all six batteries at the same time. If the instrument will
not be used for an extended period of time, remove all batteries from the instrument.
Failure to do so may cause leakage and damage to the instrument.
Unit Dimensions:
VWR-1002E, 3002E, 3001E, 6001E258 x 190 x 82mm (10.2x x 7.5 x 3.2in)
VWR-10001E, 20001E330 x 215 x 90 (8.5 x 13 x 3.5in)
Net Weight:
VWR-1002E, 3002E, 3001E, 6001E2kg (4.4lb)
VWR-10001E, 20001E3kg (6.6lb)
Page 11

FEATURES
- Large, Backlit Display - Simple, Five-Button Operation
- Auto Shut Off Mode - Automatic Calibration
- Low Battery Indicator - Sixteen Weigh Modes
- Overload Protection - Stainless Steel Weigh Pans
- RS232 Communication - Two-Year Warranty
INSTRUMENT DIAGRAM
BACK SIDE
AC ADPTER INSERT
BOTTOM
BATTERY COMPARTMENT
6 AA Batteries, not included
Page 12

The status of the information and specifications in this manual is indicated by the
date given below. VWR International, LLC reserves the right to make changes to
any or all of the specifications, features or design of the instruments at any time
and without notice.
Date: April 2015, VWR International, LLC
Revision B
1.800.932.5000
www.vwr.com