JW User Manual
Contents
1. 10 LO BAT INDICATOR When this indicator appears recharge the balance immediately Failure to do so may cause unrecoverable damage to the rechargeable battery inside the balance 4 INITIAL SETUP 4 1 1 POSITIONING THE SCALE In order to obtain an accurate weighing result the balance must be placedona strong and level surface If required adjust the leveling feet underneath balance to obtain a level position Use the bubble level to assist with this 4 1 2 SET UP WINDSHIELD Top cover x I Window x 2 Sliding door x 2 Frame x 2 Bottom cover x 1 The windshield consists of 8 components as illustrated inthe above drawing If any items are missing please contact your local distributor for assistance To set up the windshield please follow the steps below a Slide the door sideways into one of the slots in the frames door handle first as illustrated inthe drawing andclick onto the bottom cover The door should be able to slide in and out with the door stop and door handle acting as a retainer for the door b Repeat the same procedure for the other sliding door and frame Both frames with sliding doors should be securely fixed to the bottom cover now c Remove the platter and place the incomplete windshield on the balance and fasten it with the screws provided d Replace the platter gently e Slide inthe windows fromthe top for both sides of the balance Put on the t2. select zero motion filter from 0 to4 Filt_0 provides the least effect andFilt_4 provides the maximum effect against poor operating environments Press WT to confirm setup e Turn scale off and on again and use as normal 5 INSTRUCTIONS FOR USE 5 1 BEFORE WEIGHING Make sure that a The platter is inserted correctly into the balance The balance is placed on a level and strong surface Apply windshield if necessary b The balance is turned on The ZERO INDICATOR is on If not press ON RE ZERO to set display to zero Refer to SPECIFICATIONS for maximum zero range 5 2 WEIGHING a Always place a load onto the platter gently Excessive force or shock may cause damage to the sensor inside balance b The weight of the load will be displayed automatically c It is good practice to remove all loads from platter after weighing It will prolong the lifetime of the sensor inside the balance 5 3 SELECT WEIGHT UNIT Press MODE to shift among different weighing units with or without backlight Refer to 4 2 2 for internal setting procedures 5 4 TURN BACKLIGHT OPTIONAL ON OFF Press MODE to shift among various weighing units e g g without backlight or g with backlight or press and hold ON RE ZERO to turn backlight on and off Even though the backlight function is employed backlight will be turned off When a zero weight is detected and remains stable for 10 seconds or When a wei
3. JW SERIES HIGH PRECISION BALANCE OPERATION MANUAL PLEASE REA D THIS MANUAL VERY CAREFULLY BEFORE ATTEMPTING TO OPERATE THE BALANCE JANUARY 2005 Specifications subject to change without prior notice CONTENTS CAUTI ONS NSTALLATION OP BCIFICATIONS 3 KEYBOARD LAYOUT AND DESCRIPTION h AL SETUP INSTRUCTIONS FOR USE 6 TROUBLE SHOOTING d DA ILY CARE AND MAINTENANCE CAUTIONS Do This unit is legal for trade only when it is sealed and or stamped and bearing a serial number Do not attempt to break the seal or stamp affixed to this balance or remove the serial number Contact your dealer formore information and for after sales servic For most accurate weighing results do not use this balance where or when the environmental conditions fall beyond those listed in SPECIFICATIONS not attempt to open this unit or conduct any troubleshooting other than those listed in TROUBLE SHOOTING 1 INSTALLATION 1 1 Check and make sure that the following accessories are included Operation Manual x 1 Balance x 1 Plastic platter x 1 Stainless steel platter cover x 1 Protection cover x 1 Windshield x 1 for JW 250 amp JW 500 only JW 1000 optional Power adaptor x I Contact your dealer if any item is missing 1 2 Insert the plastic platter
4. ay will show the total count Tochangetheitemweight repeat the above procedur To return to the weighing mode press PCS WT 5 9 PERCENTAGE MODE Press the WT key and the balance will display 0 0Pct Press the SAMPLE key and the display will show P 100 0 ADD Put the sample 100 onthe platter and the balance will beep and display 100 0Pct The balance is now prepared for percentage weighing Put an object on the platter and the display will record a percentage of the original sample To return to the weighing mode press PCS WT twice 5 10 RECHARGE THE BALANCE When the LO BAT INDICATOR appears apply the power adaptor and recharge the balance immediately Failure to do so may cause unrecoverable damage to the rechargeable battery inside the balance The balance can remain in operation when being recharged 6 TROUBLE SHOOTING Symptom Balance cannot be turned on Check Action Check Action Symptom Check Action Symptom Check Action Symptom Check Action Is the balance charged Recharge the balance for at least 8 hours before first time use or plug in the power adaptor before turning the balance on Is the power adaptor plugged properly intoboththeelectricaloutlet andthe DC inlet of balance Secure both ends of the power adaptor and try again Balance displays Isthe loadappliedtoplatter inex
5. cess of the rated capacity of the balance Remove all loads from platter and try again Balance displays 00000 Is the platter inserted in the balance correctly Insert the platter into the balance correctly Balance turns off automatically Is the AUTO POWER OFF FUNCTION employed Referto4 2 3todisable the AUTO POWER Check Action Symptom Check Action Check Action Symptom Check Action Check Action Check Action Check Action OFF FUNCTION Is the LO BAT INDICATOR on Apply the power adaptor and recharge the balance immediately Rated capacity cannot be reached Is the TARE INDICATOR on Turn the balance off Remove all loads from platter and turn on again Anything obstructing the platter Remove all obstacles Weighing result is not accurate Is the balance positioned in a level condition Adjust the leveling feet to obtain a level condition Is the balance affected by airflow vibration or RFI Place the balance away from all disturbances and apply the wind shield Is the balance calibrated correctly Contact your dealer Is the correct weight unit employed Refer to 4 2 2 and 5 3 for weight unit setting and usage Symptom Check Action Check Action Check Action BALANCE TURNED ON BUT ZERO WEIGHT CANNOT BE ATTAINED Is the platter positioned correctly Remove the platterandinsert it again Is any load applied to pla
6. ght remains stable for 20 seconds Backlight willbe automatically turnedonagainwhen weight change is detected or a key is pressed 5 5 SET DISPLAYED VALUE TO ZERO WHEN UNLOADED Press ON RE ZERO toeliminate a positive ornegative value After ON RE ZERO is pressed the ZERO INDICATOR will appear Refer to SPECIFICATIONS for maximum zero range 5 6 TARE OFF THE WEIGHT OF A CONTAINER When a container is used follow the steps below to tare off the weight of the container and obtain a net weight status a Remove all loads from the platter Make sure that the ZERO INDICATOR is on Place the container on the platter Press ON RE ZERO After ON RE ZERO is pressed the TARE INDICATOR will appear Refer to 5 2 for weighing procedures Weight displayed is the net weight of the subject matter Refer to SPECIFICATIONS for maximum tare range 5 7 CLEAR THE TARE FUNCTION Remove all loads from the platter then press ON RE ZERO After ON RE ZERO is pressed the TARE INDICATOR will disappear 5 8 COUNTING Press the PCS WT key and the balance will display OPCS Press the SAMPLE key and the balance will display S 20 and ADD will flash Select the sample you wish to apply by pressing SAMPLE 20 50 100 200 or 500 Place items on the platter corresponding to the number shown in the display The display will now show the sample size e g 20 PCS Add more items to the platter and the displ
7. into the balance carefully and secure with the screw provided before putting on the stainless steel cover No excessive force is needed Excessive forc may damage the weighing sensor 1 3 Power up the balance a Before charging the balance or powering up withthe adaptor supplied please make sur the input voltage listed on the back of the adaptor matches with the local voltage If not do not use it and contact your dealer immediately b Before first time use charge the balance for at least 8 hours to ensure the best performance SPECIFICATIONS Model No Capacity Division Max e JW 250 250g 0 005g JW 500 500g 0 01g JW 1000 1000g 0 02g JW 2500 2500g 0 05g Tare Range Full Tare Range Ne Full Power on Zero Range Zero Range Zero Range 2 in Load 20e Weighing Gram ounce pound troy ounce grain Units penny weight metric carat momme troy NOTE A tael tola dram Power By Built in Rechargeable Battery or AC DC Source Power Adaptor Operating 0 40 C 32 104 F Environment Non condensed R H 85 Specifications subject to change without notice NOTE A To comply with the law of certain countries some of the weighing units may be disabled Contact your dealer for more information 3 KEYBOARD LAYOUT AND DESCRIPTION SOOO gt HOGG 1 OFF KEY Press this key to turn scale off 2 ON RE ZERO KEY P
8. n the balance will switch off automatically if it is not used for 4 minutes Follow the steps below to enable disable this function a Turn balance off Press and hold WT then press ON RE ZERO b Balance displays the span value and F 1 Press WT until mode indicator shows F 4 Press MODE to shift between 0 OFF and 30 OFF To enable the AUTO POWER OFF FUNCTION press WT when 30 OFF appears To disable the AUTO POWER OFF FUNCTION press WT when 0 OFF appears f Press WT to confirm setup g Turn balance off and on again and use as normal 4 2 4 Select RS 232 Baud Rate For Computer Connection Only This unit is equipped with 3 baud rates with default setting at 9600 and N 8 1 Follow the below steps to select the desired speed a Turn balance off b Press and hold WT then press ON RE ZERO cC Balance displays the span value and F 1 d Press WT until mode indicator shows F 5 e Press MODE to select among br 48 br 96 or br192 f Press WT to confirm setup g Turn balance off and on again and use it as normal 4 2 5 Set Weighing Motion Filter The weighingmotionfiltergives amore stable result when the operating environment is poor Follow the steps below to set the motion filter a Turn balance off b Press and hold WT then press ON RE ZERO C Balance displays the span value and F 1 Press WT until the mode indicator display F 6 d Press MODE to
9. op cover to complete the windshield setup 4 2 INTERNAL SETTINGS 4 2 1 Set Zero Motion Filter Toensure the best performance under apoor operating environment the user can employ a motion filter when at zero Follow the steps below a Turn balance off Press and hold WT then press ON RE ZERO b Balance displays the span value and F 1 Press WT until the mode indicator displays F 0 Press MODE to select zero motion filter from 0 to 4 Motion filter is set at 0 5d apart Zero 0 for normal in which any changes within 0 5d will remain at zero Zero_4formaximumeffect inwhich any changes within 2 5d will remain at zero Press WT to confirm setup c Turn balance off and on again and use as normal 4 2 2 Select A Weight Unit The balance is equipped with 10 weighing units Follow the steps below to enable disable these units a Turn balance off Press and hold WT then press ON RE ZERO b Balance displays the span value and F 1 Press WT until mode indicator shows F 3 Press MODE to select the weighing unit according to the mode indicator Press PCS WT to turn on or off the selected units cC Toset the unit shown when the balance is powered on press SAMPLE when at the selected unit Press WT to confirm setup d Turn balance off and on again and use as normal 4 2 3 Set Auto Power Off Function The balance is equipped with an AUTO POWER OFF FUNCTION Under this functio
10. ress this key to a turn balance on or b act as tare key to set weight displayed to zero Press and hold this key to turn backlight on and off 3 MODE KEY Press this key to switch among the weighing units available during operation 4 SAMPLE KEY Press this key to sample the weight placed on the platter when engaging the counting function or percentage function 5 PERCENTAGE FUNCTION Press this key to enter the percentage function 6 COUNTING FUNCTION Press this key to enter the counting function or to move between count or weight display 7 ZERO INDICATOR This indicator appears to indicate a zero weight status 8 NET INDICATOR This indicator appears to indicate thetare function is in operation and weight displayed is net weight 9 MODE INDICATOR This indicator shows current weight unit or operating mode engaged g indicates the metric unit is being employed Pct indicates percentag function is being employed PCS indicates counting function is being employed With the scale off hold down WT key and press ON RE ZERO to switchonthe balance Thisareawill indicate the function engaged FO to set motion filter when at zero F1 to indicate the span value F2 to light up all the segments F3 to select weight unit F4 to set Auto Power Off Function F5 to set baud rate for RS 232 F6 to set motion filter when weighing
11. tter Remove all loads from platter Is the balance affected by air flow vibration or RF Position the balance away from all disturbancesandapplythewindshield 7 DAILY CARE AND MAINTENANCE Cleanthe balancewithasoft anddampcloth If necessary apply a mild detergent Do not pour water onto the balance Do not use any harsh abrasive material acetone volatile solvent thinner or alcohol for cleaning Verify the accuracy of the balance periodically Re calibrate the balance if necessary NOTE Insome countries calibration of the balance is restricted to authorized qualifiedagents only Contact your dealer for more information The balance must be placed in a horizontal position during transportation or long term storage Remove platter from balance before transportation or long term storage Store balance in a dry and clean place
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