LAUMAS WDESK-LIGHT Installation And User Manual Download Page 3

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TABLE OF CONTENTS

USER WARNINGS ................................................................................................................... 1

RECOMMENDATIONS FOR CORRECT INSTALLATION OF WEIGHING INSTRUMENTS . 1

RECOMMENDATIONS FOR CORRECT INSTALLATION OF THE LOAD CELLS ................ 1

LOAD CELL INPUT TEST (QUICK ACCESS) .......................................................................... 3

LOAD CELL TESTING ............................................................................................................... 3

MAIN SPECIFICATIONS OF THE INSTRUMENT ................................................................... 4

BUFFER BATTERY .................................................................................................................... 4

AFTER A BLACKOUT ............................................................................................................. 4

TECHNICAL SPECIFICATIONS .............................................................................................. 5

ELECTRICAL CONNECTIONS ................................................................................................ 6

BASIC INFORMATION ............................................................................................................... 6

WIRING DIAGRAM..................................................................................................................... 6

TERMINALS LEGEND ........................................................................................................................ 7

KEYS AND SYMBOLS FUNCTIONS ....................................................................................... 8

MENU MAP ............................................................................................................................ 10

SETPOINT ................................................................................................................................ 10

SYSTEM PARAMETERS ......................................................................................................... 10

INSTRUMENT COMMISSIONING .......................................................................................... 11

PROGRAMMING OF SYSTEM PARAMETERS .................................................................... 12

THEORETICAL CALIBRATION ............................................................................................... 12

MAXIMUM CAPACITY ...................................................................................................................... 13

TARE WEIGHT ZERO SETTING ...................................................................................................... 13

ZERO VALUE MANUAL ENTRY ...................................................................................................... 13

REAL CALIBRATION (WITH SAMPLE WEIGHTS) ................................................................ 14

FILTER ON THE WEIGHT ....................................................................................................... 15

ANTI PEAK ........................................................................................................................................ 15

ZERO PARAMETERS .............................................................................................................. 16

RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES .......................................... 16

AUTOMATIC ZERO SETTING AT POWER-ON .............................................................................. 16

ZERO TRACKING ............................................................................................................................. 16

SETTING UNITS OF MEASURE .............................................................................................. 17

DISPLAY COEFFICIENT .................................................................................................................. 17

OUTPUTS AND INPUTS CONFIGURATION .......................................................................... 19

SEMI-AUTOMATIC TARE (NET/GROSS) ............................................................................... 20

PRESET TARE (SUBTRACTIVE TARE DEVICE) ................................................................... 21

SEMI-AUTOMATIC ZERO (WEIGHT ZERO-SETTING FOR SMALL VARIATIONS) ............ 21

PEAK ........................................................................................................................................ 22

SERIAL COMMUNICATION SETTING .................................................................................... 22

RS232 SERIAL COMMUNICATION ................................................................................................. 24

RS485 SERIAL COMMUNICATION ................................................................................................. 24

DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER ...................... 24

Summary of Contents for WDESK-LIGHT

Page 1: ...ENGLISH ENGLISH ENGLISH ENGLISH Installation and User Manual version 1 07 WDESK LIGHT 2014 30 EU EN55022 2010 EN61000 6 2 2005 EN61000 6 4 2007...

Page 2: ...ication label and or serial number of the product misuse transformation alteration repair of products not carried out by Laumas personnel Laumas provides a 1 year warranty from the date of the deliver...

Page 3: ...OF SYSTEM PARAMETERS 12 THEORETICAL CALIBRATION 12 MAXIMUM CAPACITY 13 TARE WEIGHT ZERO SETTING 13 ZERO VALUE MANUAL ENTRY 13 REAL CALIBRATION WITH SAMPLE WEIGHTS 14 FILTER ON THE WEIGHT 15 ANTI PEAK...

Page 4: ...AY AND OPERATION 27 ENABLING SETPOINT 28 TOTALIZER 29 SELECT TOTALIZER OPERATING MODE 29 DISPLAY AND OPERATION 29 ENABLING SETPOINT 31 ALARMS 32 PRINTING EXAMPLES 33 RESERVED FOR THE INSTALLER 35 MENU...

Page 5: ...e RC filters on the instrument driven solenoid valve and remote control switch coils Avoid inverters in the instrument panel if inevitable use special filters for the inverters and separate them with...

Page 6: ...l shifting and tipping relating to shocks and vibration windy conditions seismic conditions in the installation setting stability of the support structure EARTHING THE WEIGHED STRUCTURE By means of a...

Page 7: ...itation wire must be equal or similar to the one indicated in the load cell data sheet input resistance The insulation value between the shield and any other cell wire and between any other cell wire...

Page 8: ...is equipped with an internal battery that allows to keep active the internal clock even in the event of power failure At the first start and after long periods of inactivity leave the instrument on f...

Page 9: ...VERSIONS PER SECOND 300 conversions second DISPLAY RANGE 999999 NO OF DECIMALS DISPLAY INCREMENTS 0 4 x 1 x 2 x 5 x 10 x 20 x 50 x 100 DIGITAL FILTER READINGS PER SECOND 0 012 7 s 5 300 Hz RELAY OUTPU...

Page 10: ...hm termination resistance on the two devices located at the ends of the network as described in section RS485 SERIAL CONNECTION WIRING DIAGRAM 2 outputs controlled by setpoint values or by remote devi...

Page 11: ...LOAD CELL REF SENSE 15 INPUT No 2 VDC min 5 V max 24 V 5 LOAD CELL SIGNAL Sig 16 INPUT COMMON VDC 0 V 6 LOAD CELL SIGNAL Sig 17 OUTPUT No 1 7 RS232 TXD 18 OUTPUT No 2 8 RS232 RXD 19 OUTPUT COMMON 9 RS...

Page 12: ...et Net Gross Select figure to be modified or go to previous menu item Select operating mode base piece counter totalizer Print actual weight mV load cell test Modify selected figure or go to next menu...

Page 13: ...k function enabled 7 not used 8 value displayed is not a weight 9 not used 10 not used 11 active coefficient 12 not used 13 unit of measure reading 14 the number displayed indicates that the correspon...

Page 14: ...10 MENU MAP Into menus changes are applied right after pressing the ENTER key no further confirmation is required SETPOINT SYSTEM PARAMETERS 3 s 3 s...

Page 15: ...ent and on the cover load cell s rated data already entered Reset to zero see section TARE WEIGHT ZERO SETTING Check the calibration with sample weights and correct the indicated weight if necessary s...

Page 16: ...possible to set a value between 0 50000 and 7 00000 mV V Example of 4 cell system with sensitivity 2 00100 2 00150 2 00200 2 00250 enter 2 00175 calculated as 2 00100 2 00150 2 00200 2 00250 4 The div...

Page 17: ...mpensate zero variations due to the presence of product residues Procedure Confirm the message by pressing ENTER The weight value to be set to zero is displayed In this phase all of the symbols are fl...

Page 18: ...too the system must read zero If this does not happen it means that there is a mechanical problem affecting the system linearity WARNING identify and correct any mechanical problems before repeating t...

Page 19: ...ntil an optimum result is achieved The filter enables to stabilise a weight as long as its variations are smaller than the corresponding response time It is necessary to set this filter according to t...

Page 20: ...on the weight value is lower than the value set in this parameter and does not exceed the value the weight is reset To disable this function set 0 ZERO TRACKING from 1 to 5 default When the weight va...

Page 21: ...nt parameter see the related section To use is necessary to enable it closing the input see section OUTPUTS AND INPUTS CONFIGURATION DISPLAY COEFFICIENT By setting the coefficient the display is chang...

Page 22: ...are expressed in weight value If you want to convert them to the new unit of measurement perform one of the following procedures for changing the system calibration The parameter must remain set to 1...

Page 23: ...ve the contact will switch on the basis of gross weight the contact will switch on the basis of net weight If the net function is not active the contact will switch on the basis of gross weight relay...

Page 24: ...setting of the units of measure and coefficient otherwise the weight is displayed when the input is closed the data are sent for printing if in the communication protocol of either serial port the pa...

Page 25: ...once again While the net weight is displayed keep pressed to display the gross weight When the key is released the net weight will be displayed again IF A SEMI AUTOMATIC TARE NET IS ENTERED IT IS NOT...

Page 26: ...ocol possible addresses from 1 to 99 see Communication protocols manual continuous weight transmission protocol see Communication protocols manual at the frequency set in item from 10 to 300 set set c...

Page 27: ...um setting frequency 20 Hz with minimum baud rate 2400 baud 40 Hz with minimum baud rate 4800 baud 80 Hz with minimum baud rate 9600 baud 100 Hz with minimum baud rate 19200 baud 200 Hz with minimum b...

Page 28: ...is necessary to connect the above mentioned resistors DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER Since a two wire RS485 output may be used directly on the RS 232 input of a PC or remo...

Page 29: ...G back lighting on back lighting off back lighting goes off after about one minute of no activity pressing a key or a weight change turns it on again DATE AND TIME SETTING Selecting the item in the ma...

Page 30: ...default 0 Setpoint relay switching occurs when the weight exceed the value set in this parameter The type of switching is settable see section OUTPUTS AND INPUTS CONFIGURATION from 0 to max full scal...

Page 31: ...PERATION Load pieces to be counted on the scale press TARE to display zero net weight remove sample pieces press START select and confirm with ENTER appears on the display set the number of sample pie...

Page 32: ...de and confirm with ENTER If no setpoint is enabled you can do a new sampling or return to standard operations also by pressing MENU ENABLING SETPOINT Setpoint can be used to stop automatic loading of...

Page 33: ...se the relative input default only for and type of totalization setting the weight is only totalized if stable default the weight is only totalized if it has changed compared to the last totalization...

Page 34: ...mains blocked and is preceded by the letter press PRINT to continue Press START to access the following displays number of weighing totalized partial weight and date of last deletion total weight and...

Page 35: ...e them default setpoint disabled setpoint enabled Setpoint 1 and 2 switch respectively based on totalized partial weight and total weight while the others always switch on weight After enabling the se...

Page 36: ...l value above the maximum setting value the weight value set in sample weight verification does not match the detected mV increase lock active on menu item keypad or display It s not possible to displ...

Page 37: ...r less than 3 seconds BASIC PRINTOUT WDKL BASE Addr 01 DATE 12 09 11 14 48 12 GROSS 878 kg NET 589 kg TARE 289 kg BASIC PRINTOUT PEAK ENABLED WDKL BASE Addr 01 DATE 12 09 11 14 48 12 GROSS 1204 kg NET...

Page 38: ...0 kg PMU 3154 77 PCS 49 TOTALIZER PRINTOUT WDKL BASE Addr 01 DATE 12 09 11 14 48 12 GROSS 155 kg NET 155 kg TARE 0 kg TOTAL 3500 kg TOTP 2350 kg NUM 55 STORED TOTALIZED PRINTOUT WDKL BASE Addr 01 DAT...

Page 39: ...to indicate that this menu item is unlocked TEMPORARY MENU UNLOCKING press and simultaneously for 3 seconds it is now possible to enter and modify all menus including those which are locked By return...

Page 40: ...Dir 2014 31 EU art 1 Contact technical assistance to request the proper manual and the correct procedures for approval indicating mandatory hardware code and serial number see section INSTRUMENT COMMI...

Page 41: ...as Produkt auf das sich diese Erkl rung bezieht mit den nachstehenden Normen bereinstimmt F D claration de conformit Nous d clarons avec cela responsabilit que le produit auquel se rapporte la pr sent...

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Page 44: ...product manuals are available online You can download the manuals in PDF format from www laumas com by consulting the Products section or the Download Area Registration is required Think about the en...

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