VT 100 Weight Indicator User's Guide
Contents
1. Table D 2 Characters 32 63 ASCII Dec Hex ASCII Dec Hex SPACE 32 20 0 48 30 33 21 1 49 31 i 34 22 2 50 32 35 23 3 51 33 36 24 4 52 34 37 25 5 53 35 amp 38 26 6 54 36 A 39 27 7 55 37 40 28 8 56 38 41 29 9 57 39 E 42 2A 58 3A 43 2B 59 3B 44 2C lt 60 3C 45 2D 61 3D 3 46 2E gt 62 3E 47 2F 2 63 3F Doc UM VT100 EN 30 VT100 User Manual Rev A Table D 3 Characters 64 95 ASCII Dec Hex ASCII Dec Hex 64 40 P 80 50 A 65 41 Q 81 51 B 66 42 R 82 52 C 67 43 S 83 53 D 68 44 T 84 54 E 69 45 U 85 55 F 70 46 V 86 56 G 71 47 W 87 57 H 72 48 x 88 58 73 49 Y 89 59 J 74 4A Z 90 5A K 75 4B 91 5B L 76 4C 92 5C M 77 4D 93 5D N 78 4E A 94 5E O 79 4F 95 5F Table D 4 Characters 96 127 ASCII Dec Hex ASCII Dec Hex 96 60 p 112 70 a 97 61 q 113 71 b 98 62 r 114 72 c 99 63 s 115 73 d 100 64 t 116 74 e 101 65 u 117 75 f 102 66 v 118 76 g 103 67 w 119 77 h 104 68 x 120 78 i 105 69 y 121 79 j 106 6A z 122 7A k 107 6B 123 7A 108 6C 124 7C m 109 6D 125 7D n 110 6E 126 7E o 111 6F DEL 127 7F VT100 User Manual Rev A 31 Doc UM VT100 EN APPENDIX D ERROR MESSAGES Error Message Table The VT100 indicator displays a number of error messages When an error occurs the message is sho2. EXCITATION LOAD CELL SENSE LOAD CELL SIGNAL Figure 2 5 6 Wire Load Cell Application Connections of a 4 Wire Load Cell Application The relevant connections are shown in Figure 2 6 Load Cell VT 100 LOAD CELL SIGNAL LOAD CELL EXCITATION LOAD CELL EXCITATION LOAD CELL SIGNAL Figure 2 6 4 Wire Load Cell Application Doc UM VT100 EN 6 VT100 User Manual Rev A CHAPTER 3 CONFIGURATION MODE OPERATIONS The following sections provide graphic representations of the indicator menu structures The top level menu structure of the weight indicator is as follows CONFIGURATION FORMAT CALIBRATION SERIAL PROGRAMME PRINT FORMAT 5 i E i i The following table gives a brief introduction to what each menu item does Table 3 1 Menu Structure Main Menu Function Sets parameters affecting the weighing function ADC programmable gain amplifier value CONFIGURATION Menu Number of full scale graduations e Range within which the scale can be zeroed Change in load at which the scale will exit the stable condition Sets the format for calculation and display of various units like Primary and secondary units FORMAT Menu wie Multiplier exponent Rate at which the display is refreshed CALIBRATION Menu Calibrates the indicator SERIAL Menu Configures the parameters of the serial port PROGRAM Menu Sets power up mode regulatory mode and consecutive number values PRINT FORMA
3. action No load yes CLEAR TARE NTEP ZERO no TARE positive yes no action ZERO no No load yes CLEAR TARE ZERO and CLEAR TARE OIML no ZERO positive TARE ZERO and CLEAR TARE if weight is within yes ZRANGE No action if weight is outside the ZRANGE no no action ZERO No load ZERO and CLEAR TARE if weight is within yes CLEAR TARE ZRANGE No action if weight is outside the CANADA ZRANGE no TARE ZERO positive yes no action ZERO no no action No load yes CLEAR TARE NONE ZERO no TARE positive yes CLEAR TARE A 7 PRINT FORMAT Commands Table A 7 PFORMT Commands Command Description Values WWPF Print format strings in visible ASCII characters See Print Formats on page 24 WPF Print format strings in ASCII Hex code See Print Formats on page 24 A 8 RESET Commands Table A 8 RESET Commands Command Description Values DEFLT Reset Default parameter values VT100 User Manual Rev A 27 Doc UM VT100 EN A 9 A D Commands Table A 9 ADS 1240 Commands Command Description Values ADS Display Current 16 Registers of the ADC ADSRESET ADC reset ADSSELFCAL ADC self calibrate A 10 Key Button on EDP Commands Table A 10 Key Button Command Description Values KGROSSNET Same function as press Gross Net Button KZERO Same function as press Zero Button KTARE Same function as press Tare Button KUNITS Same function as
4. ie ani iia 24 6 3 Use FrontPanel Editinigi ciale Ela A AA E 24 VT100 User Manual Rev A V Doc UM VT100 EN APPENDIX A ELECTRONIC DATA PROCESSING COMMANDS AT GENERAL Commands siii li A 2 CONFIGURATION Commands cooccccoccccnncncnoncnnnnnnononccnnannnnnanononcnn nan no non cnn nano nnnccnnannannn AS FORMATZAGOMMANRGS 5a Aa e ect i a eo io a te A 4 PROGRAM Commands naco nonacn nana nn nann nara nn aran naa naar anna aran AS SERAL GommandS iets ore I eon ack AGO REGULATION 0 AI A ee cate ed tad ody ad eee A 7 PRINT FORMAT Commands rrrerrreeeeceneeeennceenneecenseeeneeceneeensn A8 RESET Command orien vik Bese dee A Asst eee AI AMD GOMMANGS 22825828 mas a nd oa ela o a A 10 Key Button on EDP Commands ivi dado ATT Oer commands iii raid RR ad id tot APPENDIX B CONVERSION FACTORS AND CONTINUOUS OUTPUT FORMAT Conversion A AAA AA COS O HAT E E E TAA EE A AE a APPENDIX C ASCII SET AND SPECIFICATIONS ASCll Character Seta A A aa APPENDIX D ERROR MESSAGES Error Message Fables ae A AS APPENDIX E FRONT PANEL DISPLAY CHARACTERS Character Map for Front Panel Display SPECIFICATIONS VT 100 Detailed Specifications sise TECHNICAL SUPPORT Doc UM VT100 EN VI VT100 User Manual Rev A CHAPTER 1 INTRODUCTION The VT 100 Weight Indicator is a single channel digital weight indicator The indicator front panel consists of six bright 7 segment LED digits and a five button keypad The promin
5. on5nu tE NTEP OIML CANADA Figure 3 7 Program Menu The following table describes the various program options values in bold are default values Table 3 6 Program Options Parameter Options Description Power up mode In GO mode the indicator goes into operation immediately after a brief power POWER UP MODE Go up display test DELAY In DELAY mode the indicator performs the power up display test and enters a AA 60 second warm up period Delay mode is terminated either at the end of the warm up period or when the predefined temperature is reached If motion is not detected during the warm up period it goes into Normal Mode REGULATION de ECCULA CANADA Specifies the regulatory agency having jurisdiction over the scale site NONE pae a 0 Consecutive Numbering allows sequential numbering for print operations This Number value is incremented following each print operation CONSECUTIVE NUMBERING 0 Consecutive Number Startup Value specifies the initial consecutive number STARTUP VALUE Number CONSNU value used when the indicator is powered on VT100 User Manual Rev A 17 Doc UM VT100 EN Configuration Mode Operations 3 6 PRINT FORMAT Menu PESE Use these menu options to configure the print format settings The Print Format menu is shown below PRINT FORMAT Location of the character Blank Visible ASCII Char ASCII in HEX code Figure 3 8 Print Format Me
6. segment LED character set used to display alphanumeric characters on the VT 100 front panel m m I ep n D OO Mn 4 un D 0O eo OT A CA J gt E m A Co DI lt CO gt N lt x E OI AM C1 II Fu TERE ELN CC C0 N GO 2 O gt 18 lw v m D co co Figure A 1 VT 100 Display Characters VT100 User Manual Rev A 33 Doc UM VT100 EN SPECIFICATIONS VT 100 Detailed Specifications The following are the specifications of this product Performance Resolution 10 000 or 100 000 dd setup selectable Conversion Speed 3 7 15 30 setup selectable Sensitivity 1 0uV Vsi for approved scales 0 5uV Vsi for non approved scales Full Scale Range 3mV V Linearity 0 01 of full scale Excitation 5VDC with sense 6 wires Number of Load Cells Up to 4 350 load cells Offset Drift lt 3 5 ppm C Span Drift lt 3 5 ppm C A D Converter Type Sigma Delta ratiometric Filter Digital filter 3 stages Count By x1 x2 x5 x10 x50 Decimal point setting between any digits of the weight display Calibration Methods dead load and span store in EEPROM Weighing Functions Automatic zero tracking e No motion detection Auto zero on power up Zero Tare GROSS Net Print Units conversion Serial Communication Serial Output 1 RS232 Baud Rate 300 9600 baud full duplex Applications Continuous output printer output PC interface Serial Out
7. Contents CHAPTER 1 INTRODUCTION Wil Operating Modest interactuar ctas Ant TR nt des 1 1 2 Getting to Know the Indicator a coord edades 1 12 17 Front View AAA AA 1 1 22 LED AnnunciatOS coi raid 2 1 29 REA VEW danre E nai ioni alri 2 1 24 Setup With iii aa ei 2 13 Indicator Operations i arri dele atei 3 1 3 1 Weighing Mode Operations iia alari 3 1 3 2 Front Panel Buttons trai 4 CHAPTER 2 INSTALLATION 2 1 Power Connector nine de ne dha NaN cand ave io 5 2 2 Serial Print Connector and Digit Input ss 5 2 9 Voltage Driven P Aimer sioni irene O Aa EEA a Stee roadie 6 2 4 Current Driven Printer 20 MA ae aan RZ 6 2 9 Load Celli Connections hr ns NL Ulea ou 6 CHAPTER 3 CONFIGURATION MODE OPERATIONS 9 1 COMMGUIATION MS iatale de ah Oh a te 8 3 27 Format Menis na a a oe eee ee A na ne es em TN dB Ei 10 Sd CALIBRATION Nc anat ei ie o lid iS 12 3 31 Calibration Menu lhi lo ia LA DELIA LL LL ASI Li 12 3 32 Calibrating MT ADO cocinada 13 3 4 SERIAL Mentir da dai 15 3 5 PROGRAM Men A da 17 3 6 PRINT FORMAT Men lo oia 18 90 TIME Mente ari alone latas 19 30 DATE Menu or ceco a o o a e e o e e ava fo 20 3 9 VERSION MENU c cite ta 20 CHAPTER 4 TEST MODE OPERATIONS TEST MODE OPERATION Sisi Ada 21 CHAPTER 5 PANEL MODE OPERATIONS PANEL MODE OPERATION Sisi ds 22 CHAPTER 6 PRINT FORMATS 6 1 Print Format COMINO stat ei iano 24 6 2 Edit Using Any Editor Through EDP cios ai gioia
8. EN 8 VT100 User Manual Rev A Configuration Menu The following table describes the various configuration options values in bold are default values Table 3 2 Configuration Options Parameter Options Description PROGRAMMABLE 4 Bp aa cartel led end di value SAN AMPEIFICATION i 0 2mv v to 2 2mv v PGA 2 PLA 8 0 1mv v to 1 1mv v PGA 4 0 05mv v to 0 6mv v PGA 8 The value entered must be in the range 1 100000 and should be consistent with legal requirements and environmental limits on system resolution GRADUATIONS 10000 To calculate GRADS use the formula Number Grads Capacity Display Division Display divisions for primary and secondary units are specified on the FORMAT menu ZERO TRACKING OFF This automatically zeros the scale when the input drifts slowly within the speci BAND 0 5D E 1D fied range and speed as defined by the parameter which covers the upper and ckrAba 3D lower limits The maximum legal value is dependant on local regulations This is the range within which the scale can be zeroed For example if this ZERO RANGE 100 value is set to 1 9 it means that the zero range is 1 9 around the cali E A DE 1 9 brated zero point for a total range of 3 8 The indicator must be in stable con E DU OFF dition to zero the scale Use 1 9 for legal for trade applications 100 indicates the scale can be zeroed at any load 1D 2D MOTION BAND 3D Defines the change in load at which the s
9. G GRAM KG KILOGRAM 0 45359 Number This defines the secondary Units for display and printing Multiplier defines the conversion factor by which the primary units are multiplied to obtain the secondary units Secondary unit Pri mary unit MULT Use the MULEXP parameter to shift the decimal position of the multiplier To toggle between primary and secondary units use the UNITS key DECIMAL POSITION 250 MS 500 MS 750 MS 1 SEC 1500 MS 2 SEC 2500 MS 3 SEC 4 SEC 6 SEC 8 SEC 11 Multiplier Exponent specifies a divisor used to shift the decimal position in the secondary units multiplier value Display Rate sets the update rate for displayed values Doc UM VT100 EN Configuration Mode Operations 3 3 CALIBRATION LAL ibr 3 3 1 Calibration Menu This menu is used to calibrate the indicator To configure items from this menu enter configuration mode and then press the right arrow button twice CAL indicates that the machine is calibrating the selected value The Calibration menu is shown below CALIBRATION ER ola r WEIGHT ZERO WEIGHT VALUE WEIGHT SPAN Press Enter to remove offset from zero and span calibrations Figure 3 4 Calibration Menu The following table describes the various calibration options values in bold are default values Table 3 4 Calibration Options Parameter Options Description WEIGHT ZERO ii WEIGHT VALUE 10000 Displa
10. Manual Rev A 1 Doc UM VT100 EN Introduction 1 2 2 LED Annunciators The VT 100 indicator uses a set of eight LED annunciators to provide additional information about the value being dis played e Gross G and Net Net Shows whether the displayed weight is a gross or net weight e Center of Zero gt 0 lt Gross weight is within 0 25 graduations of zero e No Motion n Scale is motionless or within the specified motion band Some operations including tare function and printing can be done only when the no motion symbol is lit Units Kg and g Indicate the units of the displayed value kg kilograms and g grams The displayed units can also be set to short tonnes tn metric tonnes t or NONE no unit information is displayed The kg and g LEDs function as primary and secondary unit annunciators for some combinations of primary and secondary units If neither primary or secondary units are lb kg oz or g the lb annunciator is lit for primary units and kg for sec ondary units Note In OIML approved applications weighing is done in kg and g only 1 2 3 Rear View The rear view of the indicator is shown in the following figure Power Communication Load Cell and T O Figure 1 2 Rear View 1 2 4 Setup Switch The following figure displays the setup switch location The setup switch is activated by pressing it with a thin object VT 100 Indicator bottom Recessed setup switch Figure 1 3 Set
11. RE ERE HEHEHHE OR Note 2 Note 1 Place test weights Note 2 Use arrow key see figure 3 1 to set maximum weight value Note 3 Optional use only when hooks or chains were used during calibration To recalibrate zero remove these and the test weights from the scale Figure 3 5 Calibration Process Doc UM VT100 EN 14 VT100 User Manual Rev A SERIAL Menu 3 4 SERIAL Menu SEF RL The items in this menu are used to configure the serial port used for transferring data between the indicator and a PC or printer To configure items in this menu press the setup switch and then the right arrow button three times The Serial menu is shown below SERIAL ELECTRONIC DATA PROCESSING Figure 3 6 Serial Menu VT100 User Manual Rev A 15 Doc UM VT100 EN Configuration Mode Operations The following table describes the various serial options values in bold are default values Table 3 5 Serial Options Parameter Options Description ELECTRONIC DATA BAUD PROCESSING BITS Specifies port settings for baud rate data bits termination characters and end TERM of line delay used by the EDP port 9600 pauo LAUJ 1200 Baud Rate Selects the transmission speed for the EDP port 2400 4800 BITS 8NONE TODD Selects number of data bits and parity of data transmitted from the EDP port bats 7EVEN parity par 7SPACE TERMINATION CRILE Selects the termination
12. T Menu Sets the print format used for gross and net tickets TIME Menu Sets the current time DATE Menu Sets the current date VERSION Menu Displays the installed software version number The front panel buttons are used as directional buttons to navigate through the menus in setup mode ee TARE Press to select and save parameter UNITS Press to move left 0 Press to move up gt T p values lt A PRINT A GROSS NET Press to move right B N Press to move down gt v A label under each of gt these buttons identifies the 1st Level 1st Level i i Parameter Parameter direction provided by the gt button as shown 2nd Level 2nd Level Parameter Parameter gt Default value Figure 3 1 Navigating the Setup Menus VT100 User Manual Rev A 7 Doc UM VT100 EN Configuration Mode Operations 3 1 Configuration Menu Lomr il Use this mode to configure the parameters of the weighing scale To configure items from this menu press the setup switch The configuration menu is shown below CONFIGURATION COnF 16 PROGAMMABLE ZERO TRACKING GAIN AMPLIFICATION BAND PGA Gras jr tlm ie moe amm Ham di H GRADUATIONS ZERO RANGE MOTION BAND OVERLOAD im ui Sar fille d GFL dibFLe c omel s ar SE mE dFEHCH SAMPLE RATE DIGITAL FILTERING DIGITAL FILTERING DIGITAL FILTERING DIGITAL FILTER DIGITAL FILTER INITIAL ZERO 1 2 3 SENSING THRESHOLD RANGE Figure 3 2 Configuration Menu Doc UM VT100
13. 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 VT100 User Manual Rev A I Doc UM VT100 EN Warranty Vishay Transducers warrants all instruments it manufactures to be free from defect in materials and factory workman ship and agrees to repair or replace any instrument that fails to perform as specified within one year after the 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 war ranty 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 author
14. VT 100 Weight Indicator User s Guide WEY VISHAY Transducers Revision A June 2004 Doc UM VT 100 EN Legal Notice This manual contains information that is proprietary to Vishay Transducers Ltd WT 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 the VT 100 the Product and any software components con tained therein are proprietary products of VT protected under international copyright law and shall be and remain solely with VT VT 100 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 prohib ited from and shall not directly or indirectly develop market distribute license or sell any product that supports sub stantially 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
15. able A 4 PROGRM Commands Command Description Values PWRUPMD Power up mode GO DELAY REGULAT Regulatory Compliance NTEP OIML CANADA NONE CONSNUM Consecutive number 0 999999 CONSTUP Consecutive number start up value 0 999999 A 5 SERIAL Commands Table A 5 SERIAL Commands Command Description Values EDP BAUD EDP port baud rate 300 600 1200 2400 4800 9600 19200 38400 EDP BITS EDP port data bits parity 8NONE 7EVEN 70DD and 7SPACE EDP TERMIN EDP port termination character CR LF CR PRN BAUD Printer port baud rate 110 300 600 1200 2400 4800 and 9600 PRN BITS Printer port data bits parity 8NONE 7EVEN 70DD 7SPACE PRN TERMIN Printer port termination character CR LF CR STREAM Streaming port OFF EDP PRN STMDLY Stream output delay period 250 ms 500 ms 1 sec 2 sec 4 sec 8 sec 15 sec and None PRNDEST Print destination PRN EDP PROTCT Protection DISABLE ENABLE Doc UM VT100 EN 26 VT100 User Manual Rev A A 6 REGULATION REGULATION sets the tare mode and the tare and zero commands affect the indicator operation according to a selected weighing machine standard NTEP OIML CANADA NONE Note ZERO is active if the weight is within the Zero Range Table A 6 REGULATION Weight on Tats Press Press REGULAT g in TARE Scale ZERO button System button no no
16. annunciator py 2 Press the TARE key to acquire the tare weight of the container The indicator switches to net mode Remove Stored Tare Value 1 Remove all weight from the scale and wait for the no motion annunciator py 2 Press the TARE key The indicator switches to gross mode indicating that the tare value has been removed Print Ticket 1 Wait for the no motion annunciator NA 2 Press the PRINT key to send data to the serial port VT100 User Manual Rev A 3 Doc UM VT100 EN Introduction 1 3 2 Front Panel Buttons The front panel buttons are shown in the following table Button Normal Setup Test ON OFF Functions as the up arrow button and Functions as the up arrow button gt 0 Sets the gross weight to zero is used to move one level up the and is used to move one level up menu hierarchy the menu heirarchy GROSS NET Functions as the down arrow button Functions as the down arrow but Switches between gross and net B N and is used to move one level down ton and is used to move one level weight displays the menu hierarchy down the menu heirarchy TARE Used iv settare load Functions as the ENTER button and Functions as the ENTER button nd T br is used to confirm selection and is used to confirm selection Functions as the left arrow button E Functions as the left arrow button and Toggles the display between primary and is used to select the menu UNITS and secondary unit
17. arth 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 A Welding on or in the vicinity of the equipment is strictly prohibited A Use reliable lightning conductors to prevent static loads caused by thunderstorms 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 cur rent exceeding 35A Always connect the power cord first to the equipment and then to the wall socket If the power cord cannot be readily dis connected in case of emergency make sure that a readily accessible circuit breaker or emergency switch is installed in the building Operating Environment Storage temperature 10C to 70C 14F to 158F Ambient Temperature Operating temperature 10C to 40C 14F to 104F Humidity 40 to 90 RH non condensing Vibration Severe vibration can a
18. ault values TRANSMIT U GAE U Transmit U Press and hold the Enter button to send the U character ASCII 85 decimal 55 hex to test ul the serial line quality and integrity This displays the character received from the serial port to test the serial line quality Press the down arrow once until the indicator displays READY Now press the enter button on the front panel This dis plays the value received from serial port on the front panel ECHO R The format of the data displayed by the ECHO R command is shown as shown po 1 IN 4 E Received character order Blank Visible ASCII Char ASCII in HEX code VT100 User Manual Rev A 21 Doc UM VT100 EN CHAPTER 5 PANEL MODE OPERATIONS PANEL MODE OPERATIONS Panel mode provides access to setting the time date and print serial numbers operation without the need to press the Setup Switch To enter Panel Mode under normal mode press the GROSS NET button for three seconds The Panel Mode s TIME menu is displayed The pictorial representation of the panel menu is as follows Figure 5 1 Panel Mode Operations Doc UM VT100 EN 22 VT100 User Manual Rev A Table 5 1 Panel Options Options Description Set the time HH MM SS Displays current time in HH MM SS format hour HH Set hour using 24 hour format minute MM second SS Set minute Set second Set the date YY MM DD Disp
19. cale will exit a stable condition motion 5D a oss es 10D condition If motion is not detected for more than 1 second the stability annun nutofna 20D ciator lights The motion band value must satisfy local regulations 50D OFF FS 1D OVERLOAD FS 9D Defines the point of overload The display indicates when the point of 3 CAR FS overload is reached The maximum legal value varies depending on legal regu E FS 2D lations FS full scale 3 75 Hz SPMPLERAIE 7 5 Hz Defines the Analogue to Digital converter sampling rate Lower sample rate val SAPCAL 15 Hz ues provide better signal noise immunity 30 Hz DIGITAL FILTER 1 2 3 k 4 Defines the digital filtering rate used to reduce the effects of mechanical vibra dub El 8 tion Choices indicate the number of A D conversions that are averaged to CELA 16 obtain the displayed reading A higher number gives a more stable display by di ESE 32 minimizing the effect of a few noisy readings but slows down the setting rate of the indicator d 5F1L3 64 128 1 2 DIGITAL FILTER CUTOUT 4 SENSITIVITY 8 Defines the number of consecutive readings that must fall outside the filter 16 threshold defined by DFTHRH before digital filtering is suspended dF5EnS 32 64 128 NONE 2DD DIGITAL FILTER 5DD CUTOUT 10DD Specifies the filter threshold in display divisions When a specified number of THRESHOLD 20DD consecutive scale readings DFSENS parameter fall outside this threshold T 50DD digital filte
20. character for data sent from the EDP port cR ECHO ON OFF Specifies whether commands sent to the indicator are echoed ERINI SA Specifies port settings for baud rate data bits termination characters and end Pr int TERM of line delay used by the printer port BAUD Fet 2400 Baud Rate Selects the transmission speed for the printer port 4800 BITS 8NONE TODD Selects number of data bits and parity of data transmitted from the printer port b rks 7EVEN pany Pruner dai 7SPACE TERMINATION CRILF Selects the termination character for data sent from the printer port CR SERIAL PORT OFF EDP Selects the serial port used for continuous transmission StrEAan PRN 250MS 500MS 1SEC STREAM DELAY 2SEC Specifies the delay in seconds or milliseconds inserted between stream SEndt yY 4SEC frames 8SEC 15SEC NONE DATA TRANSMISSION PORT EDP Selects the port for data transmission when the PRINT key is pressed or the PRN KPRINT EDP command is set PrndEs PROTECT ENABLE DISABLE EDP port protection Select ENABLE to secure the EDP port Doc UM VT100 EN 16 VT100 User Manual Rev A PROGRAM Menu J a ee Our 3 5 PROGRAM Menu Use this menu to configure the power up mode regulatory mode and consecutive number values of this indicator The Program menu is shown below PROGRAM POWER UP MODE P rUPA CONSECUTIVE REGULATION CEA NUMBERING STARTUP VALUE lt Fr le fe ML
21. e in YY MM DD format SHou YEAR year YY Set year two digits 00 99 MONTH month MM Set month DAY day DD Set day 2353 y DD y E 3 9 VERSION Menu sees This shows the software version of this indicator The Version menu is shown below Software Version Figure 3 11 Version Menus Doc UM VT100 EN 20 VT100 User Manual Rev A CHAPTER 4 TEST MODE OPERATIONS DD aL rr un rr TEST MODE OPERATIONS Use this mode to test the parameters of the weight indicator Note This operation is approved only if performed by a certified technician To enter test mode press the setup switch for three seconds The display will change from CONFIG to A DTST FogESE el fe PL fe TRANSMIT U READY Figure 4 1 Test Mode Operations Parameter Description A DTEST PTE E Display A D Test Press and hold the Enter button to display the raw count value from A D converter FILTER1 iLtr FILTER2 Display filtered raw count for digital filters 1 3 Press and hold the Enter button to show the status of DIGIN1 DI1 HI or DI1 LO Flere Press and hold the Enter button to show the status of DIGIN2 DI2 HI or DI2 LO Press and hold the Enter button to show the status of DIGIN3 DI3 HI or DI3 LO FILTER3 Filtr J DEFAULT Default parameters Press the setup switch and the Enter button at the same time to reset configuration dEFLE and calibration parameters to factory def
22. en complete REZERO is displayed 6 Optional The rezero function is used to remove a calibration offset when hooks or chains are used to hang the test weights Ifno other apparatus was used to hang the test weights during calibration remove the test weights and press A to return to CALIBR menu If hooks or chains were used during calibration remove these and all test weights from the scale Press to rezero the scale This function adjusts the zero and span calibration values When complete WZERO is dis played Press the button to return to CALIBR menu 7 Press the button until the display reads CONFIG then press A to exit setup mode Note When editing numeric values press or to change the digit selected Press A or Y button to incre ment or decrement the selected digit Press to save the value entered and return to the level above In case of a mistake the whole process can be repeated to obtain proper calibration VT100 User Manual Rev A 13 Doc UM VT100 EN Configuration Mode Operations The calibration process is depicted in the following figure CONFIGURATION FORMAT CALIBRATION CALIBRATION CORE FOrARE gt CAL ibe CAL ibe WEIGHT ZERO WEIGHT VALUE WEIGHT SPAN REZERO gt gt cero ouAl iP inh on PEGE r Note 1 Note 3 SAE Test Weight Value CE
23. ent features include Four and six wire load cell support connections e OIML approved e Two configurable digital inputs e Electronic Data Processing Port EDP for full duplex RS 232 communications at up to 9600 bps e Printer port for output only RS 232 and 20 mA current loop communications at up to 9600 bps e Available in 115 VAC and 230 VAC versions 1 1 Operating Modes The VT 100 indicator has four modes of operation Mode Description Normal Weighing Mode See Chapter 2 for more information Also known as weighing mode The display shows measured weights in the units required Setup Configuration Mode See Configuration mode allows users to modify parameter values and calibrate the indicator Chapter 3 for more information TS Made SeeChapter 4 formore Test mode performs diagnostic functions for the indicator information Panel Mode See Chapter 5 for Panel mode provides access to time date sequential numbering for print operations and the more information initial consecutive number value This is all done without the need to press the setup switch 1 2 Getting to Know the Indicator 1 2 1 Front View The following figure shows the LED display and the five button keypad Send data to Acquire serial port tare Set gross weight tozero Switch between Switch between gross and net primary and weight display secondary units Figure 1 1 Front View VT100 User
24. er in ASCII HEX format and include a 0D for carriage return 6 3 Use Front Panel Editing The format of the characters to be entered is shown Colt NAE Note EDP or Electronic Data Processing refers to a PC ora terminal that can enter ASCII charac ters using a keyboard and a screen via the EDP ation ofthe character Blank Visible ASCII Char ASCII im HEX code interface of the VT 100 Figure 6 1 Print Format Doc UM VT100 EN 24 VT100 User Manual Rev A APPENDIX A ELECTRONIC DATA PROCESSING COMMANDS The EDP port and commands may be used to set indicator parameters retrieve indicator parameters and set print for mats To set parameter values enter the corresponding EDP commands from the terminal In order to set the parameter values use the following format Command Parameter Value For example To set GRADS graduations to 5000 do the following grads 5000 Press Enter on the keyboard OK OK Indicates the setting has been saved To retrieve parameter values send the parameter name followed by in ASCII code to the indicator For example To retrieve the GRADS graduations value do the following grads Press Enter on the keyboard 5000 The value of GRADS is returned as 5000 A 1 GENERAL Commands Table A 1 General Commands Command Function DUMPALL List all parameter values VERSION Show VT 100 software version VT 100 Vx xxx Show currently displayed weigh
25. ffect the accuracy of weighing and damage components The air surrounding the product should be dust free and should not contain corrosive gasses or other Air materials that could adversely effect the product Electromagnetic Fields Heavy electrical equipment should not be installed near to the weighing apparatus Incoming and Relays and contacts connected to the equipment must have reliable and effective interference Outgoing Signals suppression This also applies to other equipment within 3 meters of the equipment VT100 User Manual Rev A Ill Doc UM VT100 EN Declaration of Conformity Non Automatic Weighing Instrument IID Manufacturer Vishay Transducers Type Model VT 100 EC Type Approval Certificate Number DK 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 e 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 Equip ment EN 60950 1992 Safety of Information Technology Equipment Date Jun 1 2004 Benny Shaya Director R amp D Operations Instruments Being the responsible person employed and appointed by Vishay Transducers Signature Doc UM VT100 EN IV VT100 User Manual Rev A
26. ion Error Extended Format lt Space gt lt Time gt lt P gt lt Date gt lt Space gt lt RawConut gt Time 8 digits hh mm ss hh 00 24 Date Raw Count mm 00 59 2 digits dd 8 digits ss 00 59 dd 00 31 00000000 16777216 VT100 User Manual Rev A 29 Doc UM VT100 EN APPENDIX C ASCII SET AND SPECIFICATIONS ASCII Character Set Use the decimal values for ASCII characters listed in the table when specifying print format strings on the VT 100 PFORMT menu The actual character printed depends on the character mapping used by the output device The VT 100 can send and receive any ASCII character value decimal 0 255 but the indicator display is limited to numbers upper case unaccented letters and a few special characters Table D 1 Control Characters 0 31 Control ASCII Dec Hex Control ASCII Dec Hex Ctrl NUL 00 00 Ctrl P DLE 16 10 Ctrl A SOH 01 01 Ctrl Q DC1 17 11 Ctrl B STX 02 02 Ctrl R DC2 18 12 Ctrl C ETX 03 03 Ctrl S DC3 19 13 Ctrl D EOT 04 04 Ctrl T DC4 20 14 Ctrl E ENQ 05 05 Ctrl U NAK 21 15 Ctrl F ACK 06 06 Ctrl V SYN 22 16 Ctrl G BEL 07 07 Ctrl W ETB 23 17 Ctrl H BS 08 08 Ctrl X CAN 24 18 Ctrl 1 HT 09 09 Ctrl Y EM 25 19 Ctrl J LF 10 0A Ctrl Z SUB 26 1A Ctrl K VT 11 0B Ctrl ESC 27 1B Ctrl L FF 12 OC Ctrl FS 28 1C Ctrl M CR 13 0D Ctrl GS 29 1D Ctrl N SO 14 OE Ctrl RS 30 1E Ctrl O SI 15 OF Ctrl _ US 31 1F
27. ishay 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 Micro Measure ment s 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 conseq
28. ized 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 merchantabil ity 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 warran ties or otherwise assumed for Vishay Transducers any liability in connection with the sale of any goods to the purchase The 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 V
29. lays current date in YY MM DD format year YY Set year two digits 00 99 month MM Set month CONSECUTIVE NUMBERING CONSECUTIVE NUMBERING STARTUP VALUE day DD Number 0 Number Set day Consecutive Numbering that allows sequential numbering for print operations This value is incremented following each print operation Consecutive Number Startup Value that specifies the initial consecutive number CONSNU value used when the indicator is powered on VT100 User Manual Rev A 23 Doc UM VT100 EN CHAPTER 6 PRINT FORMATS 6 1 Print Format Commands The following table gives the possible indicator parameters and command values that may be printed Command Description G Gross weight in displayed units This also displays the weight units used T Tare weight in displayed units N Net weight in displayed units C Print consecutive number Ln New line n specifies termination number t Time d Date Sn Space n specifies the number of spaces M Use in pairs to quote Tare and Net data If Tare is present then the Tare and Net data will be printed on the ticket Gross Net and Tare weights are 9 digits in length including sign 10 digits with decimal point followed by a space and a two digit units identifier The total field length with units identifier is 12 or 13 characters ID and consecutive number CN fields are 1 6 characters i
30. n length as required This section describes setting the print formats for the indicator using the serial port or the front panel There are two methods to edit the print format 6 2 Edit Using Any Editor Through EDP Write the print format data in pure text format The following samples are for an Eltron LP 2742 printer Wwpf 0 N A0 0 0 3 1 2 N Vishay Transducers Ltd d t C A8 50 0 5 1 1 N G MA8 120 0 5 1 1 N T A8 190 0 5 1 1 N N M B8 260 0 3 3 7 100 B G P1 First place a WWPF 0 in the first line to indicate that the following is a print format file Place printer parameters in the beginning of each line as required and then use double quotes to contain the text that you want to print on the ticket Note in the above example N AxxxxN B and PI are printer specific parameters for the Eltron LP 2742 ASCII characters in HEX mode wpf 0 4E 0D 41 30 2C 30 2C 30 2C 33 2C 31 2C 32 2C 4E 2C 22 43 65 6C 74 72 6F 6E 20 54 65 63 68 6E 6F 6C 6F 67 69 65 73 20 49 6E 63 2E 20 40 64 20 40 74 20 40 43 22 0D 41 38 2C 35 30 2C 30 2C 35 2C 31 2C 31 2C 4E 2C 22 40 47 22 0D 40 4D 41 38 2C 31 32 30 2C 30 2C 35 2C 31 2C 31 2C 4E 2C 22 40 54 22 0D 41 38 2C 31 39 30 2C 30 2C 35 2C 31 2C 31 2C 4E 2C 22 40 4E 22 40 4D OD 42 38 2C 32 36 30 2C 30 2C 33 2C 33 2C 37 2C 31 30 30 2C 42 2C 22 40 47 22 0D 50 31 0D First place WPF 0 in the first line to indicate that the following is a print format file Then place each charact
31. nu The following table describes the various print format options Table 3 7 Print Format Options Parameter Options Description EDIT EXE NONE Edits the print format INSERT Inserts a new character initialized to 00 at the end of the value edited using the NONE previous EDIT option This shifts all data after it to the right by one position After insertion the user can edit the value DELETE NONE Deletes the last character of the value edited by the previous EDIT option This deLELE shifts all data after it to the left by one position Doc UM VT100 EN 18 VT100 User Manual Rev A 3 7 TIME Menu Use these menu options to configure time settings The Time menu is shown below Figure 3 9 Time Menu The following table describes the various time options Table 3 8 Time Options TIME Menu Parameter Options Description SHOW HH MM SS Displays current time in HH MM SS format HOUR z hour HH Set hour using 24 hour format MINUTE SAUCE minute MM Set minute SECOND second SS Set second VT100 User Manual Rev A 19 Doc UM VT100 EN Configuration Mode Operations 3 8 DATE Menu dAL E Use these menu options to configure date settings The Date menu is shown below Figure 3 10 Date Menu The following table describes the various date options Table 3 9 Date Options Parameter Options Description SHOW YY MM DD Displays current dat
32. osition display divisions and Pr infr UNITS UNITS units used for the primary units DECIMAL POINT CPnt a m DISPLAY DIVISIONS a5 PF aww UNITS Un t E SECONDARY un Elndr 888888 88888 8 8888 88 888 888 88 8888 8 88888 Decimal Point defines the location of the decimal point or dummy zero for the primary unit display The value set should be consis tent with local legal requirements 1D 2D 5D 10D 20D 50D Display Division defines the minimum division size for the weight displayed by the primary units KG KILOGRAM G GRAM DECPNT DECIMAL POINT DSPDIV DISPLAY DIVISION UNITS UNITS MULT MULTIPLIER MULEXP MULTIPLIER EXPONENT This defines the primary Units for display and printing Specifies the Secondary decimal position display divisions and units used for the secondary units DECIMAL POINT GEE Fae DISPLAY DIVISIONS SP ES ev UNITS Un E E MULTIPLIER DA CZ m mr MULTIPLIER EXPONENT DI ES mn Zi pi oa DISPLAY RATE dSPrAE VT100 User Manual Rev A 88888 8 8888 88 888 888 88 8888 8 88888 888888 Decimal Point Location defines the location of the decimal point or dummy zero for the primary unit display The value set should be consistent with local legal requirements 1D 2D 5D 10D 20D 50D Display Divisions defines the minimum division size for the weight displayed by the secondary units
33. press Units Button KPRINT Same function as press Print Button A 11 Other Commands Table A 11 Other Commands Command Description Values EE Read EEPROM Contents REZERO Calibrate Rezero WZERO Calibrate Zero WSPAN Calibrate Span RS Software Reset SFR Read CPU s SFR Contents 10 Read IO 4 Ports status CONFIG Enter Configure mode TEST Enter Test Mode SETUP Enter Setup Mode CLREE Clear all EEPROM data Note all data is lost Doc UM VT100 EN 28 VT100 User Manual Rev A APPENDIX B CONVERSION FACTORS AND CONTINUOUS OUTPUT FORMAT Conversion Factors Secondary Unit Primary Unit x Multiplier Table B 1 Conversion Factors Primary Unit X Multiplier Secondary Unit grams 15 4324 grains 0 03527 ounces 0 00221 pounds 000 001 kilograms kilograms 15432 4 grains 035 274 ounces 001000 grams 2 20462 pounds 00 0011 metric tonnes COS Format Note All values are ASCII code characters lt STX gt lt POL gt lt wwwwww gt lt UNIT gt lt G N gt lt S gt lt Extend gt lt TERM gt lt CR gt lt LF gt or lt CR gt K kilogram G grams Status Polarity y lt space gt valid lt Space gt Positive l 1 lid Invali lt gt Negative M In motion Exten Format See below Weight data 7 digits right justified with decimal point leading zero suppress
34. put 2 RS232 or 20mA current loop output only Baud Rate 300 9600 baud Applications Printer port Environmental Operating Temperature 10 C to 40 C 14 to 104 F Storage Temperature 10 C to 70 C 14 to 158 F Relative Humidity 40 90 RH non condensing Display and Keyboard Display 6 digit 7 segment LED 20 3 mm Status annunciators No motion zero net units used kg lb g oz Weight Digits 4 5 or 6 setup selectable Keyboard 5 key membrane keyboard with tactile feedback Electrical Voltage 12VDC using power adaptor 115 or 230VAC Power 8W Enclosure Heavy Gauge ABS Dimensions 1863x103x95 mm 7 32 x4 05 x3 74 LxHxD Mounting Desktop Wall and Tilt mount Approvals NTEP certified per H 44 at 10 000d OIML approval pending Accuracy Class Ill Note Specifications subject to change without notice Doc UM VT100 EN 34 VT100 User Manual Rev A
35. ring is suspended If NONE is selected the filter is always enabled dFEHrH 100DD 200DD 250DD 8 INITIAL ZERO RANGE 20 Defines the range within which the scale can be zeroed while power is on Each 5 50 range is a plus or minus value For example 8 means 8 around the cali PEE 100 brated zero point for a total range of 16 OFF VT100 User Manual Rev A 9 Doc UM VT100 EN Configuration Mode Operations 3 2 Format Menu L ft DPL FUrnht The items in this menu are used to configure the format for calculation and display of various units To configure items from this menu enter configuration mode and then press the right arrow button once The Format menu is shown below FORMAT Egea Ge PRIMARY SECONDARY Pe ani Genere DISPLAY DISPLAY MULTIPLIER DECIMAL POINT DIVISIONS UNITS DECIMAL POINT DIVISIONS UNITS MULTIPLIER EXPONENT aE IE Pm le a Fish na Un ole EEE Pin E Se ia Ue ES nULE in WEL te Sy fe Doc UM VT100 EN Decimal Position DISPLAY RATE 000000 Figure 3 3 Format Menu 10 VT100 User Manual Rev A Format Menu The following table describes the various format options values in bold are default values Table 3 3 Format Options Parameter Options Description PRIMARY DECPNT DECIMAL POINT wf z i FI e DSPDIV DISPLAY DIVISION Specifies the Primary decimal p
36. s ip User tp alee fie menu item onithe item on the left at the same menu left at the same menu level level Functions as the right arrow but ton and is used to select the menu item on the right at the same menu level PRINT Functions as the right arrow button Sends data to the serial port and is used to select the menu item on the right at the same menu level Doc UM VT100 EN 4 VT100 User Manual Rev A CHAPTER 2 INSTALLATION This section describes procedures for connecting the weight indicator to digital inputs and serial communication cables This weighing scale has no power switch Turn off the power outlet or disconnect the power cord to turn off the weighing scale The weighing scale must be installed near an easily accessible power out let CAUTION The various sockets on this weight indicator are shown in the following figure COMI Figure 2 1 Cable Connections 2 1 Power Connector The following table details the power connector pin function Pin Designation Function 3 9V Power Source 1 GND Power Return 2 2 Serial Print Connector and Digit Input The following table details the serial pin connector functions Port Pin Designation Function 3 EDP RX RS232 receive data EDP Port 2 EDP TX RS232 transmit data 5 EDP GND RS232 ground 1 PR TX RS232 transmit data Print Port 9 PR 20mA 20mA OUT The RS 232 EDP port connec
37. t with unit A 2 CONFIGURATION Commands Table A 2 CONFIG Commands Command Description Values PGA ADC PGA 1 2 4 and 8 GRADS Graduations 1 10000 ZTRKBND Zero Track Band OFF 0 5D 1D and 3D ZRANGE Zero Range 1 9 100 MOTBAND Motion Band OFF 1D 3D 5D 10D 20D and 50D OVRLOAD Over Load FS 2 FS 1D FS 9D and FS SMPRAT Sample Rate 3 75Hz 7 5Hz 15Hz and 30Hz DIGFLTR 1 DIGFLTR 2 Digital Filter 1 3 1 2 4 8 16 32 64 and 128 DIGFLTR 3 DFSENS Digital Filter Cutout Sensitivity 1out 2out 4out 8out 160ut 32out 64out and 1280ut NE NONE 0 1DD 0 2DD 0 5DD 1DD 2DD 5DD 10DD 20DD 50DD 100DD DFTHRH Digital Filter Cutout Threshold 200DD and 250DD WVAL Full scale value 1 999999 VT100 User Manual Rev A 25 Doc UM VT100 EN A 3 FORMAT Commands Table A 3 FORMAT Commands Command Description Values PRI DECPNT Primary sa point 888888 8 88888 88 8888 888 888 8888 88 and 88888 8 PRI DSPDIV Primary units display division 1D 2D 5D 10D 20D and 50D PRI UNITS Primary units KG G SEC DECPNT Secondary nal point 888888 8 88888 88 8888 888 888 8888 88 and 88888 8 SEC DSPDIV Secondary units display division 1D 2D 5D 10D 20D and 50D SEC UNITS Secondary units G KG SEC MULT Secondary multiplier 0 45359 DSPRAT Display Rate 2500 ms 500 ms 750 ms Lise sec 2500 ms 3 sec 4 sec A 4 PROGRAM Commands T
38. tions are shown in the following figure RS 232 EDP Cal mo AR o Port Wales EZ Figure 2 2 RS232 EDP Port Connections Port Pin Designation Function 5 EDP GND RS232 ground VT 100 Port 3 EDP RX RS232 receive data 2 EDP TX RS232 transmit data 5 EDP GND RS232 ground PC Port 2 EDP TX RS232 transmit data ce 3 EDP RX RS232 receive data The VT 100 indicator provides two different serial output methods for the printer either voltage or current VT100 User Manual Rev A 5 Doc UM VT100 EN Installation 2 3 Voltage Driven Printer The details of the voltage driven printer output are shown in the following figure Figure 2 3 Voltage Driven Printer Output 2 4 Current Driven Printer 20 mA The details of the current driven printer output are shown in the following figure Figure 2 4 Current Driven Printer 2 5 Load Cell Connections The following table shows the load cell connector pin functions Pin Functions PIN1 LOAD CELL SIGNAL PIN2 LOAD CELL EXCITATION PIN3 LOAD CELL SENSE PIN4 LOAD CELL EXCITATION PIN5 LOAD CELL SENSE PIN6 LOAD CELL SIGNAL See Figure 6 Wire Load Cell Application on page 6 and 4 Wire Load Cell Application on page 6 Connections of a 6 Wire Load Cell Application The relevant connections are shown in Figure 2 5 Load Cell VT 100 LOAD CELL SIGNAL LOAD CELL EXCITATION LOAD CELL SENSE LOAD CELL
39. uential or incidental to defects in any of its products This warranty constitutes the full understanding between the manufacturer and buyer and no terms conditions under standing 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 Doc UM VT100 EN Il VT100 User Manual Rev A Safety Instructions The following instructions serve as a general guide for the safe operation of the VT 100 This User s Manual is intended for users of the Weight 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 main tenance or repairs Safety Symbols This symbol indicates potential safety hazards regarding product operation or maintenance to the 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 e
40. up Switch Doc UM VT100 EN 2 VT100 User Manual Rev A Indicator Operations The setup switch can only be activated by using a thin object to press it as shown in Figure 1 3 The setup switch is used for entering configuration and calibration modes In this mode different parameters of the weight indicator can be configured and calibrated Note This operation should be performed only by a qualified technician calibration of the indicator may be disqualified if performed by anyone else The indicator should always be sealed after initial configuration Sealing materials can be non reversible lead seals or stickers 1 3 Indicator Operations 1 3 1 Weighing Mode Operations The basic operations of the VT 100 are summarized below Toggle Gross Net Mode Press the GROSS NET key to switch the display mode from gross to net or from net to gross If a tare value has been entered or acquired the net value is the gross weight minus the tare Gross mode is shown by the Gross annunciator the net mode is shown by the Net annunciator Toggle Units Press the UNITS key to switch between primary and secondary units The units LED to the right of the display is lit Zero Scale 1 In gross mode remove all weight from the scale and wait for the no motion annunciator py 2 Press the ZERO key The center of zero 0 annunciator lights to indicate that the scale is zeroed Acquire Tare 1 Place container on scale and wait for the no motion
41. wn on the indicator LED display Table E 1 Error Messages Error Message Description Solution Gross value exceeds overload limit Check configuration or signal input Sosa Gross gt Overload limit level Underflow error Weight value too small to be displayed Suda Overflow error Weight value too large to be displayed AD LOW AID over negative range Check scale for binding or damage AD HI AID over positive range Check scale for binding or damage Parameter or calibration check EE SUM Recalibration is needed contact Vishay service sum error EE WR EEPROM write error Contact Vishay service PM SUM Internal program checksum error Contact Vishay service HOFSET Load gt calibrated zero capacity neck weight and INIZR x INIZR LOFSET Load lt calibrated zero capacity Gi eck weight and INIZR x INIZR UOFSET Unstable within 2 sec of power Check weight and INIZR ing on Other error where xx is one of the following hex codes b7 Program Memory check sum error b6 EEPROM write error b5 EEPROM check sum error b4b3b2b1b0 Raw A D 0000000h ERR xx Raw A D Offffffh overload limited under 99999 over 999999 initial high offset initial low offset oo M OO O BR NN gt initial unstill Doc UM VT100 EN 32 VT100 User Manual Rev A APPENDIX E FRONT PANEL DISPLAY CHARACTERS Character Map for Front Panel Display The following figure shows the 7
42. ys and edits the test weight value WEIGHT SPAN NONE Displays span calibration weight value REZERO gt NONE Removes an offset value from the zero and span calibrations Use this setting only after WZERO and WSPAN have been set Doc UM VT100 EN 12 VT100 User Manual Rev A CALIBRATION 3 3 2 Calibrating VT 100 The VT 100 indicator can be calibrated using the front panel To calibrate the indicator do the following 1 Place the indicator in SETUP mode by pressing the push button in the back See figure 1 3 The display reads CONFIG Remove all weight from the scale platform If your test weights require hooks or chains place the hooks or chains on the scale for zero calibration 2 Press until the display reads CALIBR Press y to navigate to zero calibration WZERO 3 With WZERO displayed press 3 to calibrate zero The indicator displays CAL while calibration is in progress When complete WVAL is displayed 4 With WVAL displayed place test weights on the scale and press to show the test weight value Press again the last digit of the displayed value flashes Press Y or gt to change the digit selected Press A and O to increment or decrement the value of the selected digit Press to save the test weight value and navigate to span calibration WSPAN 5 With WSPAN displayed press 3 to calibrate span The indicator displays CAL while calibration is in progress Wh
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