Vishay VT300 User manual

VT300
Weighbridge Indicator
User’s Guide
Revision A4, September 2006 Doc # UM-VT300-EN

Table of Contents
VT300 User’s Guide, Rev. A4 ii Doc # UM-VT300-EN
Table of Contents
TABLE OF CONTENTS ................................................................................II
LEGAL NOTICE......................................................................................... VI
WARRANTY ............................................................................................VII
SAFETY INSTRUCTIONS........................................................................ VIII
DECLARATION OF CONFORMITY ................................................................X
ABOUT THIS DOCUMENT.......................................................................... XI
QUICK START GUIDE ............................................................................ XIII
1INTRODUCTION............................................................................. 15
1.1 HOW IT WORKS ................................................................................... 15
1.1.1 Receiving Input from a Scale.............................................................. 16
1.1.2 Displaying and Manipulating Weight Information ................................... 16
1.1.3 Sending Output to Other Devices ........................................................ 16
1.2 PRODUCT FEATURES .............................................................................. 16
1.2.1 Options........................................................................................... 17
1.2.2 Wiring............................................................................................. 17
1.2.3 Power ............................................................................................. 17
1.3 STARTUP SEQUENCE .............................................................................. 17
2USING THE DISPLAY AND KEYS ..................................................... 18
2.1 UNDERSTANDING THE VT300 DISPLAY ........................................................ 18
2.1.1 Status Annunciators.......................................................................... 19
2.1.2 Common Messages Shown on the Display ............................................ 19
2.2 FRONT PANEL KEYS............................................................................... 20
2.2.1 Using Keys to Perform Operations....................................................... 20
2.2.2 Using Keys to Enter Information ......................................................... 21
2.3 THE MENU ......................................................................................... 21
2.3.1 Using the Menu ................................................................................ 21
2.3.2 Menu Structure and Options Summary................................................. 21

Table of Contents
VT300 User’s Guide, Rev. A4 iii Doc # UM-VT300-EN
3ZEROING AND TARING...................................................................23
3.1 MANUAL ZEROING ................................................................................ 23
3.2 TARING ............................................................................................. 24
3.3 PRESET TARE ...................................................................................... 24
3.4 VIEWING PRESET TARE VALUE .................................................................. 25
4MEASURING WEIGHT ..................................................................... 26
4.1 WEIGHING AN ITEM ............................................................................... 26
4.2 HIGH RESOLUTION WEIGHING .................................................................. 26
4.3 ACCUMULATED TOTAL WEIGHT .................................................................. 27
4.3.1 Adding a Measurement to the Total ..................................................... 27
4.3.2 Viewing the Total.............................................................................. 27
4.3.3 Resetting the Total............................................................................ 28
5WEIGHING VEHICLES.....................................................................29
5.1.1 The V-File........................................................................................ 29
5.1.2 Weighing a Truck of Unknown Weight.................................................. 29
5.1.3 Weighing a Truck Stored in the V-File .................................................. 31
5.1.4 Entering Preset Tare for a Truck.......................................................... 31
6COUNTING UNITS ..........................................................................33
6.1 COUNTING UNITS ................................................................................. 33
6.2 USING A SAMPLE TO SET UNIT WEIGHT ....................................................... 34
6.3 ENTERING PRESET UNIT WEIGHT ............................................................... 34
7PRINTING......................................................................................35
7.1 PRINTING THE CURRENT MEASUREMENT ....................................................... 35
7.1.1 Repeating the Last Printout (Producing a Copy)..................................... 35
7.2 PRINTING HISTORIC MEASUREMENTS .......................................................... 35
7.3 PRINTING FROM V-FILE .......................................................................... 36
7.3.1 Printing Truck Tare Values ................................................................. 36
7.3.2 Printing All First Weighings................................................................. 36
7.3.3 Printing the Entire V-File.................................................................... 37
7.3.4 Printing the V-File Record of a Specific Truck ........................................ 37

Table of Contents
VT300 User’s Guide, Rev. A4 iv Doc # UM-VT300-EN
8ALIBI MEMORY FUNCTIONS ........................................................... 38
8.1 VIEWING OR PRINTING A SPECIFIC HISTORIC MEASUREMENT ............................... 38
8.2 PRINTING ALL HISTORIC MEASUREMENTS...................................................... 38
8.3 CHECKING ALIBI MEMORY FOR ERRORS ........................................................ 39
9WORKING WITH THE V-FILE .......................................................... 40
9.1 ADDING A NEW VEHICLE.......................................................................... 40
9.2 PRINTING FROM V-FILE .......................................................................... 41
9.2.1 Printing Truck Tare Values ................................................................. 41
9.2.2 Printing All First Weighings................................................................. 41
9.2.3 Printing the Entire V-File.................................................................... 42
9.2.4 Printing the V-File Record of a Specific Truck ........................................ 42
9.3 CHECKING V-FILE INTEGRITY ................................................................... 42
9.4 DELETING V-FILE RECORDS ..................................................................... 43
9.5 CHECKING AVAILABLE V-FILE MEMORY ........................................................ 43
10 COMMUNICATION WITH EXTERNAL DEVICES................................. 44
10.1 SERIAL PORTS CONFIGURATION................................................................. 44
10.1.1 RS232 Serial Port ............................................................................. 44
10.1.2 RS485 Serial Port ............................................................................. 44
10.2 SETTING PORT OUTPUT .......................................................................... 45
10.2.1 Setting Port 1 Output ........................................................................ 45
10.2.2 Setting Port 2 Output ........................................................................ 45
10.3 OUTPUT FORMATS ................................................................................ 45
10.3.1 Continuous Weight Output ................................................................. 45
10.3.2 Continuous Weight With Tare ............................................................. 46
10.3.3 Alibi Transmit................................................................................... 47
10.3.4 EDP Protocol Output.......................................................................... 48
10.3.5 Remote Printer Output ...................................................................... 49

Table of Contents
VT300 User’s Guide, Rev. A4 vDoc # UM-VT300-EN
11 SETPOINTS AND DIGITAL INPUT....................................................50
11.1 TECHNICAL SPECIFICATIONS..................................................................... 50
11.1.1 Digital Outputs................................................................................. 50
11.1.2 Digital Input (Tilt Switch)................................................................... 50
11.2 EDITING THRESHOLDS FOR SETPOINTS ........................................................ 50
11.3 USING THE TILT SWITCH......................................................................... 51
12 ERRORS AND TROUBLESHOOTING..................................................52
12.1 HARDWARE AND GENERAL ERRORS ............................................................. 52
12.2 PRINTING AND EDP PROTOCOL ERRORS ....................................................... 53
12.3 WEIGHING AND COUNTING ERRORS ............................................................ 53
12.4 ALIBI MEMORY AND ACCUMULATED TOTAL ERRORS .......................................... 54
APPENDIX A: SETUP PARAMETERS AND MENUS .......................................55
CONTACTING VISHAY TRANSDUCERS ......................................................57

Legal Notice
VT300 User’s Guide, Rev. A4 vi Doc # UM-VT300-EN
Legal Notice
This manual contains information that is proprietary to Vishay Transducers Ltd.
(“VT”). No part of this publication may be reproduced in any form whatsoever
without prior written approval by VT.
Right, title and interest, all information, copyrights, patents, know-how, trade
secrets and other intellectual property or other proprietary rights relating to this
manual and to VT300 (“the Product”), and any software components contained
therein, are proprietary products of VT protected under international copyright law
and shall be and remain solely with VT.
VT300 is a registered trademark of VT. No right, license, or interest to such
trademark is granted hereunder, and you agree that no such right, license, or interest
shall be asserted by you with respect to such trademark.
You shall not copy, reverse compile or reverse assemble all or any portion of the
Manual or the Product. You are prohibited from, and shall not, directly or indirectly,
develop, market, distribute, license, or sell any product that supports substantially
similar functionality as the Product, based on or derived in any way from the Product.
Your undertaking in this paragraph shall survive the termination of this Agreement.
This Agreement is effective upon your opening of the packaging of the Product, and
shall continue until terminated. VT may terminate this Agreement upon the breach by
you of any term hereof. Upon such termination by VT, you agree to return to VT the
Product and all copies and portions thereof. For further information contact VT at the
address below or contact your local distributor.

Warranty
VT300 User’s Guide, Rev. A4 vii Doc # UM-VT300-EN
Warranty
Vishay Transducers warrants all instruments it manufactures to be free from defect in materials and factory workmanship, and agrees to repair
or replace any instrument that fails to perform as specified within one year after date of shipment. Coverage of computers, cameras,
rechargeable batteries, and similar items, sold in conjunction with equipment manufactured by Vishay Transducers and bearing the identifying
name of another company, is limited under this warranty to one year after the date of shipment. The warranty on non-rechargeable batteries
and similar consumable items is limited to the delivery of goods free from defects in materials and factory workmanship.
This warranty shall not apply to any instrument that has been repaired, worked on or altered by persons unauthorized by Vishay Transducers
in such a manner as to injure, in our sole judgment, the performance, stability, or reliability of the instrument; subjected to misuse, negligence
or accident; or connected, installed, adjusted, or used otherwise than in accordance with the instructions furnished by us.
At no charge, we will repair, at our plant, or an authorized repair station, or at our option, replace any of our products found to be defective
under this Warranty.
This Warranty is in lieu of any other warranties, expressed or implied, including any implied warranties of merchantability or fitness for a particular
purpose. There are no warranties which extend beyond the description on the face hereof, Purchaser acknowledges that no salesman, agent, employee
or other person has made any such presentations or warranties or otherwise assumed for Vishay Transducers any liability in connection with the sale of
any goods to the purchase. Buyer hereby waives all rights Buyer may have arising out of any breach of contract or breach of warranty on the part of
Vishay Transducers, to any incidental or consequential damages, including but not limited to damages to property, damages for injury to the person,
damages for loss of use, loss of time, loss of profits or income, or loss resulting from personal injury.
Some states do not allow the exclusion or limitation of incidental or consequential damages for consumer products, so the above limitations or
exclusions may not apply to you.
The Purchaser agrees that the Purchaser is responsible for notifying any subsequent Buyer of goods manufactured by Vishay Transducers of
the warranty provisions, limitations, exclusions and disclaimers stated herein, prior to the time any such goods are purchased by such Buyer,
and the Purchaser hereby agrees to indemnify and hold Vishay Transducers harmless from any claim asserted against or liability imposed on
Vishay Transducers occasioned by the failure of the Purchaser to so notify such buyer. This provision is not intended to afford subsequent
Purchasers any warranties or rights not expressly granted to such subsequent Purchasers under the law.
Vishay Transducers reserves the right to make any changes in the design or construction of its instruments at any time, without incurring any
obligation to make any change whatever in units previously delivered. Vishay Transducers’ sole liabilities, and Buyer’s sole remedies, under
this agreement shall be limited to the purchase price, or at our sole discretion, to the repair or replacement of any instrument that proves,
upon examination, to be defective, when returned to our factory, transportation prepaid by the Buyer, within the applicable period of time from
the date of original shipment. Return transportation charges of repaired or replacement instruments under warranty will be prepaid by Vishay
Transducers.
Vishay Transducers is solely a manufacturer and assumes no responsibility of any form for the accuracy or adequacy of any test results, data,
or conclusions which may result from the use of its equipment.
The manner in which the equipment is employed and the use to which the data and test results may be put are completely in the hands of the
Purchaser. Vishay Transducers shall in no way be liable for damages consequential or incidental to defects in any of its products.
This warranty constitutes the full understanding between the manufacturer and buyer, and no terms, conditions, understanding or agreement
purporting to modify or vary the terms hereof shall be binding unless hereafter made in writing and signed by an authorized official of Vishay
Transducers.

Safety Instructions
VT300 User’s Guide, Rev. A4 viii Doc # UM-VT300-EN
Safety Instructions
The following instructions serve as a general guide for the safe operation of the
VT300. This User’s Manual is intended for users of the indicator, who are prohibited
from installing, calibrating, setting up or servicing the product. Only qualified and
authorized service personnel should install the product, set it up, calibrate it, or carry
out adjustment, maintenance or repairs.
Safety Symbols
This symbol indicates potential safety hazards regarding product operation or
maintenance to operator or service personnel.
General Safety Practices
Do not touch or tamper with the power supply when the power cord is connected.
Line voltages may be present even when the product is powered off or a fuse is
blown.
Before working on equipment connected to power lines or to other devices, remove
jewelry or any other metallic object that may come into contact with energized parts.
The product is intended to be grounded during normal use. Grounding is provided by
connecting the mains plug to a wall socket with a protective earth terminal. The earth
lug provided on the product should be connected to the protective earth at all times,
by a wire with a diameter of 18 AWG or wider.
Always make the ground connection first and disconnect it last. Do not connect data
cables to ungrounded equipment. Make sure that all other cables are disconnected
before disconnecting the ground.
Special Safety Warnings
Welding on or in the vicinity of the equipment is strictly prohibited.
Use reliable lightening conductors to prevent static loads caused by
thunderstorms.

Safety Instructions
VT300 User’s Guide, Rev. A4 ix Doc # UM-VT300-EN
Connection of AC Mains
Make sure that the electrical installation complies with local codes. Always connect
the AC plug to a wall socket with a protective ground.
The maximum permissible current capability of the branch distribution circuit that
supplies power to the product is 16A. The circuit breaker in the building installation
should have high breaking capacity and must operate at short-circuit current
exceeding 35A.
Always connect the power cord first to the equipment and then to the wall socket. If
the power cord cannot be readily disconnected in case of emergency, make sure that
a readily accessible circuit breaker or emergency switch is installed in the building.
Operating Environment
Ambient
Temperature
Storage temperature: -10C to +70C (14F to 158F).
Operating temperature: -10C to +40C (14F to 104F).
Humidity 40% to 90% RH (non condensing).
Vibration Severe vibration can affect the accuracy of weighing and damage components.
Air The air surrounding the product should be dust-free and should not contain
corrosive gasses or other materials that could adversely effect the product.
Electromagnetic
Fields
Heavy electrical equipment should not be installed near to the weighing
apparatus.
Incoming and
Outgoing Signals
Relays and contacts connected to the equipment must have reliable and
effective interference suppression. This also applies to other equipment within
3 meters of the equipment.

Declaration of Conformity
VT300 User’s Guide, Rev. A4 xDoc # UM-VT300-EN
Declaration of Conformity
Non-Automatic Weighing Instrument (III)
Manufacturer Vishay Transducers
Type/Model VT300
EC Type Approval
Certificate Number
DK 0199.62
Corresponds to the production model described in the EC Type Approval Certificate
and to the requirements of the Council Directive 90/384/EEC as amended and to the
requirements of the following EC Directives:
EN 45501:1994, The Metrological Aspects of Non-Automatic Weighing Machines.
EN 55022:1987, Limits and Methods of Measurement of Radio Interference
Characteristics of Information Technology Equipment.
EN 60950:1992, Safety of Information Technology Equipment.
Date
April 30, 2004
Signature
Benny Shaya, Director R&D/Operations Instruments
Being the responsible person employed and appointed by Vishay Transducers.