QHD series - Intelligent Weighing Technology, Inc.
Contents
1. Model No C2X1 Rated Capacity 6 50 kg Rated Out put 2 0 mV V 0 2 mV V Excitation Voltage 20 VDC IP Level IP64 Material Aluminum Alloy Cable 8 2 four core shield Input Resistance 4200 300 Out put Resistance 3500 50 Temperature 10 C 50 C Range Safe overload 150 R C Ultimate overload 200 R C Repeatability 0 02 R O Creep 0 02 R O 20min Zero Balance 0 1 mV V 36 Intelligent Weighing Technology has more than 50 years experience in the weighing industry both in the USA and worldwide With contacts in over 50 countries including the USA we provide you with the weighing equipment you need When you invest in weighing equipment from Intelligent Weighing Technology you re really buying peace of mind Quality Scales and balances solidly built from the ground up with superior engineering and components for exacting results Value From bench scales to analytical balances weighing equipment priced for real world business applications with superior service and support Experience Expert advice to help you choose just the right product for your application Quality Value Experience it adds up to the Intelligent Investment gt intelligent Intelligent Weighing Technology Inc www intelligentwt com Weighing Technology lt 372. 28 co has ACIS fe 2 SERI END 32 13 DRAWING N Y AY O QN H TS TA p Y j E f 6 NS m f 7 y Wi a a en eee t ee am oe O A AN 33 Parts List No Parts Name Qty Material Spec 1 Pan 1 SST 230mmx300mm 2 Pan 1 ABS 230mmx300mm 3 Battery cover 1 ABS 4 Battery 1 Lead Acid 6V 4Ah 5 Foam 1 CR 6 Rear Overlay 1 7__ Top Cover 1 ABS 8 Name Plate 1 9 Internal Allen Screw 4 M6x16 8 8 10 Washer M6 4 65Mn 200 300HV 11 Spring Washer M6 4 HRC42 50 12 Load cell upper bracket 1 Aluminum 13 Load cell 1 Aluminum Alloy 14 Star Screw 4 20Mn M4x16 15 Load cell lower bracket 1 Aluminum 16 Self thread Screw 4 18C 4x10 17 Insulative Washer 4 EDPM 8x3 1x1 2t 18 Power Socket 1 19 Power Socket Spacer 1 PC 20 Power Switch 1 21 Foot 4 PVC 22 Key board 1 23 Front display overlay 1 24 Level bubble 1 14 7mm 25 Screw 1 M4x35 26 Front Display PCBA 1 27 Insulative Washer 5 EDPM 8x3 1x1 2t 28 Star Self thread screw 5 20Mn M3x20 29 Star Self thread screw 5 20Mn M4x20 30 Hexagon Nut 4 Zn Coating 31 Main PCBA 1 32 Screw for D connector 4 33 D type connector 2 34 Hexagon nut for D connector 4 35 Overlay 1 36 Bottom Cover 1 ABS 37 Self thread screw 5 20Mn 4x12
3. TUV WXYZ O 000 J O OI 2A 0O N _ _ space The characters and the displayed symbols are NIN P gt B C B C DIE F GH I J K L M N O P Q DIE F GH IJ KLM N O P OQO R lt lt Mal Ly 1123 1 23 45 6 7890 415 6 7 8 9 0 Note that this method is only used where alpha numeric data is permitted This is used for the Description field and the User ID number Scale ID number in the parameters section 14 Recalling PLU To recall the PLU values the user should first select either local or remote scale the tare value stored will be specific to the scale selected Press CW display will be shown pao J _ jJL rw Pross i hiikllm e PLU s can be stored and recalled using RS 232 Interface e Press numeric key 2 and 7 15 5 PARAMETERS Enter into the Parameter Ps e Turn on the scale press a during that start up Display will be shown Select the Menu Block e Press E key it can choose menu block one by one Enter the Selected Menu e Press aro key it can confirm which will be shown displayed Select the Sub Menu e Press E2 key it can choose the sub menu block one by one Return to Weighing Mode e Press G key it can escape from the menu and exit to weighing mode 16
4. 34 14 SPECIFICATIONS DIMENSION IO e 300 un Y 2 Specification MODEL QHD 3 QHD 6 QHD 15 QHD 30 Maximum Capacity 3000 g 6000 g 15 kg 30 kg Readability 0 05 g 0 1g 0 2g 0 5g Tare Range 3 kg 6 kg 10 kg 30 kg Repeatability Std Dev 0 05 g 0 1g 0 2g 0 5g Linearity 0 1g 0 2g 0 5g 1g Units of Measure lb kg Interface Bi directional RS 232 Interface Stabilization Time 2 Seconds Operating Temperature 0 C 40 C 32 F 104 F Power supply AC Adaptor 9 V 800 mA Battery 6V4AH Calibration Automatic external Display 3 x 6 digits LCD digital display with white LED back light Housing Indicator ABS Plastic Stainless Steel pan Pan size 225 x 300mm 8 9 x 11 8 Overall dimensions 320 x 340 x 125mm 12 6 x 13 4 x 4 9 Net weight 4 3kg 9 5lb Applications Counting Scale Internal Resolution Up to60000 35 Specification for Remote Scale Excitation voltage 5 VDC Signal range 0 20 mV allows 3 mV V LC with 5mv zero offset Zero range 0 5 mV Sensitivity 0 02 uV internal ADC count or better Internal ADC counts 500 000 maximum at 10 mV input Load 87 ohm minimum 4 X 350 ohm load cells Connection 4 wire connection to load cells plus shield Maximum cable length 6 meters Termination 9 pin d subminiature plug on scale Specification for Local Scale Load Cell
5. RS 232 OUT PUTA eccecceccecccceseeceececesceeceecuecaesarssveceestarsaseresserees 8 CALIBRATION a EEE EE mach A EE E neicaa atta A TECHNICAL PAAMETER As see ERROR DISPLAY rr a ee eee cece cado Od TROUBLE SHOOTING A AO 11 12 13 14 Replace load cell Replace battery eee yer Checking Components Checking Load cell e Checking aa CIRCUIT DIAGRAM DRAWING Parts List SPECIFICATIONS Specifications Specification for Remote scale O A aus Specification for Local scale Load Cell c ccc cee cee eee neren neren Change Parts A Renan tae Replace main Dalia da walt ca ol Replace display Doar settee a ds Load cell A AN AERA 1 EY TT PRECAUTIONS er A ta y EN 4 Je Y e fe Read this manual before operating or servicing this equipment Follow these instructions carefully Disconnect this equipment from the power source before cleaning of performing maintenance Keep the manual for your future reference Avoid extremes of temperature Do not place in direct sunlight or near air conditioning vents Avoid unsuitable tables The tables or floor must be rigid and not vibrate Do not place near vibrating machinery Avoid unstable power sources Do not use near large users of electricity such as welding equipment or large motors Avoid high humidity that might cause condensation Avoid direct contact with water Do not spray o
6. Parameter Setting Menu Sub Menu Description Beep Beep off Beeper is turned off Beep On in Beeper is turned on will be sounded with in the check weighing limits Fi off Beep On out Beeper will be sounded above the check weighing limits El Lite aut Backlight will be turn on automatically when loaded or key is pressed Lite off Backlight is turned off Lite on Back light is turned on unit Kg 1b Weighing Unit kg and lb are enable Kilo Weighing Unit kg only lb Weighing Unit lb only off 0 Auto off function disable 3 Scale will be off three minutes later 5 Scale will be off five minutes later 15 Scale will be off 15 minutes later 30 Scale will be off 30 minutes later F2 prt P mode Print Au on Data out put accumulation after unloading the balance Au off Data out put accumulation after CM by pressing 2 P cont RS 232 data output continuously Ser re RS 232 data output weight only P baud B 600 B 1200 B 2400 Set the required baud B 4800 B 9600 parity 8nil 8 bits no parity Tel 7 bits even parity 701 7 bits no parity P type Tpup Standard printer setting Lp50 Tscale Label Printer U id U id abcdef Shows the current User ID max 6 characters Sc id Sc id abcdef Shows the current Scale ID max 6 characters Tech Technical parameter password protected 17 6 RS 232 OUT PUT The QHD Series of scales can
7. cable and power connecter e Close the top cover to the bottom cover with the five screws y 2 Replace display board e Remove the top cover e Remove the seven screws from the display board and clean the glue Disconnect the key board connecter and main PCB connecter from the display board Remove the display board Install a new display board Connect the key board connecter and main PCB connecter Turn on the power and check the working condition Then turn off the power e Fix the seven screws and apply glue e Close the top cover 3 Replace load cell Open the top cover If necessary remove the PCB s for avoid damage Disconnect load cell connections from the PCB Remove the four foots from the bottom cover Remove the four screws from the upper bracket e Remove the bracket the cover the table screws from the top by using 5mm allen with load cell from Bracket set place on Remove the allen and bottom brackets key e Load cell will get bracket separate from the cell e Install the new load e Fix the brackets proper Fix whole bracket to the bottom cover by using four screws Fix the four foots to the bottom cover Connect the load cell connections to the main PCB Fix all PCB s and cables proper Close the top cover 4 Replace battery e Remove the pan and dust cover e Open the battery cover from the top cover 28 e Take it out the battery from in side th
8. display will return to weighing mode e Incase display will show any error message or incorrect measurement repeat the calibration again 21 8 TECHNICAL PARAMETER Enter into the parameter by pressing es during the self test dete Press So until tech is displayed rece Press Ca to confirm display will be shown P 2 Enter the password Default password is 0000 Pi n and press 2 to confirm Select the scale by pressing ons which en een should be configured Cor remote and press to confirm Use the gt key to select the weighing unit Tech unit kg Ib and press Care to confirm ane Use the Se key to scroll to select individual menu Gare Confirm selected menu by pressing Press tem key escape from the menu and exit to weighing mode 299s Technical Parameter Sub Menu Description Cnt Internal counts Cap Capacity For Remote Scale Only desc O Set remote scale 0 0 decimal point 0 00 0 000 Sel 001000 Set remote scale capacity by using numeric keys I nc 1 Set remote scale division 2 5 10 20 50 Div Inc 5 Set division I nc 10 I nc 20 I nc 50 A 2t Azn 0 5d Automatic zero tracking Azn 1d Azn 2d Azn 4d 0 Auto 0 auto 0 Zero setting range after 0 auto 2 switching on the scales 0 auto 5 to zero 0 auto 10 0 auto 20 O man
9. 1 off beep PLU Product Look Up PLU are used to store items It can store up to 99 PLU numbers These data should be entered against a particular PLU before the weighing process starts so that the desired PLU s can be recalled during the weighing process The data can be stored and recalled manually or by sending data over RS 232 Interface Storing PLU Press G key to ensure display zero Tare and unit weight to be stored can be either taken from a weighing in process or by enter manually a e Press 1 display will be shown eto T e Press numeric key 2 and 7 pda __ j __ e Press a Currently stored text will appear The first digit is flashing it can P lu 27 Apple Change by using numeric keys e f necessary delete additional text paw27 id 13 ce By pressing Continue to enter text until description is complete max 12 characters P 1u 27 abcdefa hiiklmn gt Use WU key number selection to left Use O key number selection to right P Press and hold two seconds e key space to right Tare values can be saved when in the admitted taring range default gt 2 of capacity Entering Description Manually To set the description press the numeric button and keep it pressed until the desired letter is displayed The characters are according to key board ABC DEF GHI JKL MNO PQRS
10. 500 o e The scale must return to come zero or negative number before adding another samples It can add up to 99 entries or until the capacity of the weight display is exceeded 6 Parts Counting In order to do parts counting it is necessary to know the average weight of the items to be counted This can be done either by weighing a known number of the items and letting the scale determine the average unit weight or by manually inputting a known unit weight using the keypad To count a greater number of parts the average weight per part has to be determined with a small quantity The average piece weight can be increased at any time during the counting process by entering the displayed number of items and confirming by pressing Cy Weighing a sample to determine the Unit Weight e Reset the balance to zero or tare the empty container if necessary e Place the known quantity of items on the scale wait few seconds for display stable e Enter the number of quantity by using numeric keys Eg 15 1 soo as __ o 11 e Enter the a key to confirm The scale determines the average parts weight 1 500 0 15 e As more items are added to the scale the weight and the count will increase e lf the scale is not stable the calculation will not be completed e lf the weight is below zero Count display will show negative count Enter a known Unit Weight If already know the unit weight and then it can enter by using
11. al Remote CkPcs Wt High OK Low Unit Weight The arrow WV above the symbols Weight Display Low Battery Net Net Weight Display Stable Stable Display Zero Zeroing Display Lb kg Current Weighing Mode Unit Weight Display Smpl No of samples is very low U Wt Unit weight is below the minimum weight M Data entered into the memory Local Remote Active Scale in use Count Display CkPcs Active in Counting Mode Wt Active in Weighing Mode High Check Result above the high limit OK Check Result with in the limit Low Check Result below the low limit Charge Status of the battery charging 4 OPERATION Initial Start up Warm up time of 15 minutes stabilizes the measured values after switching on 1 Power ON OFF Power switch is located below the right side of the scale Switch on the scale by pressing on off The display is switched on and the self test is started If you want to switch off press backward the key 2 Switch to Local Remote Scale e By pressing CD the display changes from one to other scale In Local Scale In Remote Scale chanae remote e The basic weighing functions are same for both the scales local and remote e The number of weighing divisions may be less on the remote scale dependant on the total capacity of the load cell s used 3 Zero Environmental conditions can lead to the bala
12. be ordered with an option RS 232 output Specifications RS 232 output of weighing data ASCII code 4800 Baud 8 data bits No Parity Connector 9 pin socket Pin 2 Output Pin3 Input Pin5 Signal Ground Sample of out put LOCAL SCALE ID 123ABC NAME Text 12 456 kg NET 1 1234 g U W 11 PCS TOTAL 49 824 kg TW 44 TPC 4 No Control Commands 18 The scale can be controlled with following commands Basic Commands PLUxx Select PLU from scale memory T Tare current weight value T123 456 Numeric tare value Z Zero P Print M Store and print current results MR Recall memory values to scale display MC Clear memory U123 456 Store unit weight of 123 456 kg Ib i S123 Enter sample size of parts 123 Same as pressing Gw SL Select local scale to be used SR Select remote scale to be used Printing Commands L Scale Local or Remote I User ID number S Scale ID number N Net weight G Gross Weight T Tare weight U Unit weight P Count C Total Count W Total Weight M Number of items stored in memory B A blank space line PLU entry using RS 232 interface This will allow the scale data to be sent from a PC program as well as from the keypad The most common PLUs can be stored and recalled from the scale memory Other PLU data can be stored on a PC then the text data u
13. e housing e Remove the connecters from the battery terminals Checking Components Remove the pan Open the housing Check the load cell Check the battery Close the housing Checking Load cell Change the new battery Connect the connecters to the battery terminals Battery place it proper to inside the housing Close the battery cover Fix the dust cover and pan Make sure components all are clean Check the connectors are connected proper Check the keyboard Check the display board and main PCB If any component damaged replace it Install the pan and check its lying proper there e Remove the top cover from the scale e Remove power connecter from the main board e Make sure load cell cable connections are proper and no insulation material is touching the terminal contacts e Check load cell bridge resistance Load Cell Connections Signal Green Supply Red Signal White Supply Black 29 Shield Points Resistance Red E to Black E 406 ohms 6 ohms Green S to White S 350 ohms 3 ohms e If proper excitation voltage is reaching the load cell check the output signal e lf load cell has an unusual signal replace that load cell Checking Voltages e Using a multimeter check the mains voltage e Check the adaptor is outputting a voltage 9 VDC e Check PCB input voltage 9VDC e Check battery voltage of at least 6 VDC 308 12 CIRCUIT DIAGRAM sss3230
14. efore weighing make sure zero indication is showing and scale is empty e Check the weighing mode e Check the load cell is fitted proper and touching housing or hitting somewhere e Calibrate again with exact calibration mass weights e Load cell damaged Check load cell connections and connectors e Main PCB problem Battery not charging e Mains voltage problem Check the power supply voltage and adaptor voltage e Charging circuit failure e Battery failure check the battery connections 26 11 MAINTENANCE Disconnect the power before cleaning Use a cloth with mild suds and light cleaning agents Make sure that fluid is not able to get into the device Use a clean and soft cloth for remove This devise does not require any routine maintenance It may be necessary to perform periodic checks of the calibration of the scale due to mechanical reasons The frequency of the checks depends on the conditions to use CHANGE PARTS 1 Replace main board Remove adaptor pin from the jack e Remove the pan e Remove the five screws from the bottom of housing securing the front and back halves of the 4 cover e Disconnect the power connector display connector and load cell cable e Disconnect the ground cable from the main PCB e Remove the main PCB from the back cover e Carefully remove the main PCB and keep on a protective place e Install a new main PCB e Connect load cell cable display connector ground
15. ere it is to be used Level the scale by adjusting the four feet If fitted with a spirit level then it should be adjusted such that the bubble is in the center Local A se e Press Cons key to change remote mode and check weighing performance Remote Scale Connection The cable of the load cell goes to a 9 pin DB9 d subminiature plug connecter with following connections Pin Connection EASA 1 and 2 Excitation 5V 4and 5 Excitation Ov 7 Signal 8 Signal Note The sense wires connections of a six wire load cell are not used but can be connected to the respective Excitation pins Remote Scale Setup The remote scale should set for a realistic resolution with respect to the input provided by the load cell s If a single 2mV V load cell is fitted and more than 60 of the load cell is used for full capacity then the high output of gt 6mV span makes it possible to set a high resolution If this criterion is met then the remote scale can be set to a high resolution with a maximum of 1 30 000 for example 300kg x 10g It will also be possible to sample on the remote scale with the same accuracy as the Local Where more than one load cell is fitted or the total load cell capacity is not utilized then a reduced resolution should be selected in the remote scale technical set up For example if a system uses four 2mV V 1000kg load cells for a scale of 1000kg capacity then the span output at f
16. intelligent Weighing Technology QHD series Counting Scale SERVICE MANUAL Olntelligent Weighing Technology Inc 2012 All rights reserved worldwide The information contained herein is the property of Intelligent Weighing Technology and is supplied without liability for errors or omissions No part may be reproduced or used except as authorized by contract or other written permission The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied CONTENTS on NAME AND FUNCTIONS icin timers ad KV DOAN PATE A E hen ce peetehe E AA EEEN EA 7 DSpace dd de E eee ee OPERATION Switch to local Remote Scale Zero see Gag de wane O Tare Da A paid y dde lat NS Accumulation CEE EEE A A A O Manual E AE Saved Data o did a teed 100 Delete Data Lai A E A O LO Automatic Accumulation A A Parts Counting A a eee eee ee Weighing a sample to determine the Unit Weight A tit euieness 11 Enter a known Weight vor E N Automatic update of Unit Weight eee MRS ie Check weighing of count pre set sores attain A he Setting the checking limits E AO HE PLU Product Look Up ARA Ete eee Storing PLU exi alce dd a dd Entering Description manually PE E A E AS Ue Recalling PLU PA E A se ith 8 Power On Off A aa a EEAO 9 PARAMETERS E E A E EN ES Keys into the parameter a S O Parameter Sa AN TAN AA ASIA
17. l O manl 0 Zero setting range the O manl 2 display is set to zero by o manl a pressing 227 O manl 10 O manl 50 O manl 100 Pi n Pi n 1 Enter new password Pi n 2 Re enter new password Gra 9 673 00 Set local gravity 23 9 ERROR DISPLAY Error Message Description Solution Maximum load exceeded Unload or reduce weight Err 1 Incorrect date Enter the date by using format yy mm dd Err 2 Incorrect time Enter the time by using format hh mm ss Err 4 Zero setting error Zero setting range exceeded due to switching on 4 max Make sure platform empty Err 5 Key board error Check the keys and connecter Err 6 A D value out of range Make sure platform empty and check the pan is installed proper Check the load cell connectors Err 9 Unstable Reading Check any air variation vibration RF noise and touching some where Check the load cell and connecters Err 17 Tare out of range Remove the load and restart scale again ol Over range Remove the load Re calibrate Fai lh Calibration Error Re calibrate fai 1 1 Err p Printer error Check the printer and settings Ba lo Battery low Re charge battery check the lo ba voltages 24 10 TROUBLE SHOOTING No Display e Mains power is turned off or power supply not plugged proper e Power supply faulty e Internal Battery is not charged e Check On OFF switch is turned on and fa
18. nce exactly zero in spite of the pan not taking any strain However you can set the display of your balance to zero any time by pressing Zero key and therefore ensure that the weighing starts at zero 4 Tare The weight of any container can be tared by pressing um button so that with subsequent weighing the net weight of the object being weighed is always displayed Load weight on the pan e Press key Zero is displayed and tare is subtracted Remove weight from the platform Tared weight is displayed It can set only one tare value lt can display with a minus value Press Carey Zero is displayed tare weight is cleared Enter a tare value using by numeric keys This method allows you to enter a value for the tare weight from the keypad This is useful if all containers are the same or if the container is already full but the net weight is required and the weight of the container is known e Ensure display is in zero Enter the known tare weight by using numeric keys Tare e Press to enter weight will be stored as tare weight and displayed with minus sign and net indicator e Place the container on the platform net weight will be displayed The tare will be rounded up according to the readability of the balance For example if a tare value of 103g is entered into the 60Kg scale with 5g readability then the display will be shown 105g 5 Accumulation The balance can totalize weight val
19. nit weight and tare data can be sent from the PC to PLUOO This can then be used and over written each operation OPERATION e Send tare data to set any tare value to be stored with PLU i e T0 150 lt CR gt If no tare is needed then you may send TO to delete any present tare data e Send the unit weight to be stored with PLU ie U12 3456 lt CR gt 19 e Send PLU text data to be stored with current TARE and U W values ie SPLUO1 Parts lt CR gt 20 7 CALIBRATION e Turn on the scale and press e during the self test e Use the numeric key to enter password Default password 0000 P re AT Press 2 to confirm e Display will be shown tech Local ss Coe Select Local or Remote scale by pressing patie ws Press to confirm e Display will be shown H 5 tech unit If necessary press E to select the weighing unit kg or Ib Tare Press to confirm e Display will be shown EES unioa Ensure the platform is empty and wait for stable indicator Tare Press to confirm e Display will be shown 1 000000 se Set weight value will be required Enter the value by using numeric keys Press Tare to confirm e Display will be shown Place the calibration weight on the platform and wait few seconds for display stable 000005 fm Press to confirm e After the calibration scale will start a self test remove the weight during that time and
20. numeric keys e Enter the value of unit weight by numeric keys e Press Z during the unit display flashing e f in the weight display as kg unit is active the average piece weight will be displayed in g If as Ib is active the average piece weight will be displayed in Ib Automatic Update of Unit Weight e The scale can automatically update the unit weight when a sample less than the initial sample count are added e A beep will be heard when the value has updated e By pressing E2 key can be blocked unit weight and auto update Check Weighing or Count Pre set Check weighing is a procedure to cause an alarm to sound when the weight or piece quantity within the checking limits Limits can beset by using numeric keys Setting the Checking Limits Press C key the active mode will be shown Pst net Press 2 key to select counting Pst cnt Press um key the active high count limit will be shown wi cmt 1500 12 a Use numeric key to enter desired and if necessary press E to clear Press Care key the active low count limit will be shown zo eme 5oo for a f CE Use numeric key to enter desired and if necessary press to clear Tare Press key to return weighing mode e For check limits just one limit value can set e fboth values are deleted the check mode is deactivated e The beep sound will be worked as described in the beep parameter f
21. r immerse the scales in water Avoid air movement such as from fans or opening doors Do not place near open windows Do not stack material on the scales when they are not in use Keep the scales clean 2 INSTALLATION Unpacking Carefully take the balance out of its package make it sure its not damaged and all accessories are included Accessories 1 Balance 2 Adaptor 3 Stainless steel pan 4 Product manual Keep the packaging material for your future use SETTINGS Local Scale e Place the scale on a table e Place the platform in the locating holes on the top cover e Do not press with excessive force as this could damage the load cell inside e Check the water mark If bubble is not centre adjust the leveling feet until reach centre Check the level when you change the location Not Level Level e Attach the power supply cable to the connector on the right side of the scale base Plug in the power supply module e Turn on the Scale The power switch is located at the right side of the scale base 5 e The scale will be shown the model number in the Weight display and will be start self test Remote Scale e The QHD Series can be connected to any size of load cell type weighing base through the Remote scale port on the left side of the scale case Ensure you have the correct base for the scale as each is matched for calibration e Place the remote scale platform in the position wh
22. ues or count quantities 10 Manual Accumulation The values weight and count shown on display can be add to the memory by pressing me key Set the parameter F1 off print au off e Place the goods to be weighed o 5 00 o 0 e Wait few seconds for display stability then press me f The weight display will be show the total weight the unit weight display will be show the number of items and count display will be show the total accumulated count The values will be displayed 2 seconds E e The scale must return to come zero or negative number before adding another samples e More products can be added by pressing e lt can add up to 99 entries or until the capacity of the weight display is exceeded Display of Saved Data To check the total value saved press Cc key when the display is in zero Total weight will be displayed two seconds Delete Saved Data To clear the memory press ce the display will be shown saved data 1 soo s3 0 Press Y during the display delete all saved accumulation data ooo o j ol Weighing values automatically accumulate total when the goods is unloaded and with out key pressing Set the parameter F1 off print au on Automatic Accumulation e Place the goods on the platform ojl__ o e Wait few seconds for display stability and a control beep e Unload the goods from the platform the weighing value is added into the memory 1
23. ull scale will be only 2 5mV In this situation the resolution should be reduced to give a good number of ADC counts per displayed division for example set to 1 5000 or 1000kg x 0 2kg 6 Setting a high resolution without providing a good input to the remote scale ADC will not give better accuracy and may make the scale difficult to meet performance specification For best performance ensure a minimum of 0 1uV d 3 NAME AND FUNCTIONS Key Board 0069000 OOOO o00000 Press this key to Numeric Keys Enter to individual unit weights and the present tare Clear incorrect entries and error conditions Decimal Point Numeric input numbers select to the left o Returns the display to zero Enter the clear tare weights Storing the current weight as tare value Subtracting the tare value from the total weight and displays the result as net weight Manually enter the weight of sample also changes the unit if they are enabled OR Enter the numbers of items used for the unit weight Add the current count data aggregated Also evokes the memory if pressed to balance empty Can add up to 99 values or until it reaches the maximum displayable digits Enter to store and recall the PLU To set the upper limit of the number of items counted and back light setting B To select the local or remote scale Display Net Stable Zero b kg Smpl U Wt M Loc
24. ulty or not e Check the PCB power connecters and cable Display is Blank after the self test Err stuck e Unstable weight e Check the platform is installed correctly e Try again to turning on e Check the load cell is not touching any where e Load cell is damaged Check the load cell connections and all OL or appear the display e Maximum capacity exceeded e Power supply faulty Check all power cables and connecters e Calibrate again with correct calibration weights e Load cell damaged Check load cell connections e Weight is below permissible limit e Check the pan installed correctly e Calibrate again with correct calibration weights e Power Supply faulty Check all power cables and connecters e Load cell damaged Check load cell connections and connecters e Try to turn on again Unstable display e Check the pan is seated proper and touching some where e Check any vibrations noises sudden temperature changes e Check power supply e e Check battery and connect to charging e Check the load weight is seated properly e Check the load cell connections and connecters Incorrect value e Calibration error e Calibrate again with exact calibration mass weights e Check the weight sample is lying proper and avoids touching the cover or surface e Check power supply and battery e Check load cell connections and connectors Can not use scale full capacity e B
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