Adam Equipment PGW SERIES
Contents
1. Remove the sample and place an unknown sample to display the percentage weight To set another weight as 100 press Mode and continue as before To manually enter a value to be set as 100 press Up or Down key when PERCENT SAMPLE is shown to select PERCENT Ent Wt Press Enter to select the manually entered weight method Enter the weight using the numeric entry method see section 7 1 Place unknown sample to display the percentage weight To perform percent weighing with another sample press Mode and continue as before To return to normal weighing press Esc Note Percentage will be displayed to the maximum number of decimal places based on the resolution of the balance To increase or decrease by one decimal place press the Up or Down key respectively Adam Equipment Company 2007 Page 18 of 44 9 4 3 Check Weighing During weighing of a sample the balance can be set to show if the weight is above or below an upper and a lower limit The display will use the arrows under the fill guide to show the check weighing is operating The arrows and bars between the arrows will indicate when the weight is below the lower limit between the limits or above the upper limit The buzzer can be set to be active when the weight is outside the limits below the lower or above the upper or within the limits above the lower and below the upper limit or turned off If desired only one limit nee2. Page 32 of 44 Format of custom forms 1 and 2 If FORM1 or FORM2 is selected it can be changed by the user using a selection of available data By default the 2 forms are the same as the standard form unless changed by the user as below When FORM 1 or FORM 2 is selected the user can set the information to be printed on each line of the form Pressing the Up or Down keys will cycle through the options available The options are INST ID Instrument ID number SER No Serial Number TIME Time DATE Date NET Net Weight Gross weight Tare Weight GROSS Gross Weight TARE Tare Weight UNIT Unit weight in parts counting mode COUNT Number of items in parts counting mode REF 100 weight in percent weighing mode PERCENT Percentage of reference weight in percent weighing LO LIMIT Low Limit when check weighing HI LIM High Limit when check weighing Cr Lf Inserts a blank line END Signifies the end of the report When END is entered the display returns to the RS 232 Sub menu Enter the data to be printed on the first line by pressing the Up or Down key to cycle through the options If the current information is OK then press the Setup Enter key to move to the next line e g LINE No1 DATE prints date Select a code for one of the preset data formats as detailed above The next line shows LINE NO 2 TIME prints time Only one item can be ent
3. will be displayed Enter parts counting by pressing Enter Press the Up or Down key to select the sample size REF QTY 10 25 50 100 etc then press Enter to confirm When LOAD XX Pcs is shown place XX number of items on the pan and press Enter to compute the average piece weight Display will indicate the busy symbol Remove the sample when display shows XX Pcs and then place an unknown quantity on the pan The balance will then compute the number of parts based upon the average piece weight The display will show the result in Pcs To count another item press Mode and continue as before Checks will be made to determine that the weight of the reference parts is large enough for reasonably accurate counting weight of each piece should be gt 1d To return to normal weighing press Esc Adam Equipment Company 2007 Page 17 of 44 9 4 2 Percent Weighing Percent weighing will be done by defining a certain weight to be 100 The weight to be used can either be entered by the user or taken from a sample Press Mode and then the Up or Down key to select Percent weighing PERCENT will be displayed Press Enter to enter the function Display will show PERCENT SAMPLE Press Enter to select the sample method When LOAD 100 is shown add the sample Press Enter to set this weight to be 100 the busy symbol will turn on When ready the display will show 100
4. U IKT lt CR gt IEF lt CR gt Command format error lt CR gt is not the fourth character KT lt CR gt or No reply Either or lt CR gt is missing in the IKT command string Adam Equipment Company 2007 Page 29 of 44 12 0 ERROR CHECKING During weighing the balance is constantly checking to see if the balance is operating within the limited parameters The errors likely to occur are A D counts below lowest allowed value A D counts above highest allowed value A D not operating Maximum capacity exceeded Other errors may be detected during special functions or operations These will be described in the section that applies Error messages and the reasons are Concerning A D counts ERROR ADc UL A D counts below a limit ERROR ADc OL A D counts above a preset limit Concerning calibration Calibration could not be completed ERROR St because the results were not stable Calibration constant not within 20 of old ERROR LO or ERROR H calibration constant Concerning weighing ERROR LO Weight display is below zero by gt 4 max ERROR HI Weight is above maximum plus 90d Adam Equipment Company 2007 Page 30 of 44 13 0 SUPERVISOR MENUS Pressing the Setup key while in normal weighing gives access to the menus 13 1 When Setup is pressed and passcodes are not enable the display will show the message SUPERVISOR I
5. one of the units enabled by default Grams will always be The balance displays the alternate weighing units with as much precision as possible For example the 450g x 0 001g balance could weigh up to 9 4 FUNCTIONS Unit Maximum d g 450g x 0 001g ct 2250 0 005 mg 450000 1 GN 6944 52 0 02 dr 253 972 0 001 oz 15 87325 0 00005 ozt 14 86780 0 00005 dwt 289 356 0 001 MM 119 9995 0 0005 tl T 12 00000 0 00005 tl H 12 02275 0 00005 tl S 11 90415 0 00005 T 38 5808 0 0001 ti 27 5577 0 0001 When weighing the user can access the applications that have been enabled see section 13 2 The following applications are available in this version 2 35 Weighing Parts counting Percent weighing Check weighing Animal dynamic weighing Density determination The selectable functions can be enabled using a similar method to the Units above by turning the functions on or off Adam Equipment Company 2007 Page 16 of 44 9 4 1 Parts Counting This allows the user to weigh a sample of parts to compute an average unit weight and then determine the number of items being weighed by dividing the net weight by the unit weight value The result is always a whole number of parts The balance will have a preset number of parts to be used as a sample These values are 10 25 50 or 100 items Steps Press Mode to show parts counting PARTS
6. 44 14 0 PERIPHERALS The peripherals that can be used with the balance are the following 14 1 DENSITY DETERMINATION KIT for 0 001g units only The Density Determination Kit includes everything needed to carry out precise and repeatable measurement The kit allows a sample to be weighed in air and then a liquid to determine the density of the sample It also allows a glass sinker of known volume to be weighed in air or in a liquid to determine the density of the liquid 14 2 ANTI VIBRATION TABLE The anti vibration table is a support for laboratory balances that isolate the balance from vibration through the floor The table has a granite surface for the balance with a separate table top surrounding the balance 14 3 ADAM PRINTERS The Adam printer is a compact thermal printer which is ideal for use with laboratory balances There are 3 versions one to print data as it is received from the balance second one prints data and time along with weighing data if enabled by the balance and the other one has the ability to perform statistical analysis of the weighing results if enabled by the balance Adam Equipment Company 2007 Page 37 of 44 15 0 SAFETY AND MAINTENANCE CAUTION Use the AC adapter designed by the manufacturer for the balance Other adapters may cause damage to the balance Avoid overloading or dropping material onto the platform which could damage the balance Do not spill liquids on the balanc
7. Equipment Company 2007 Page 20 of 44 MANUAL MODE When the balance is in the MANUAL mode If Enter is pressed when UN is selected balance will display START Vi Place the item on the pan and press Enter again The result will be displayed by showing FINISHED xx xx x after a pre set time Delay and Sampling period see the section 9 4 4 1 Animal Weighing Setup Parameters AUTO MODE When the balance is in the AUTO mode If Enter is pressed when UN is selected balance will display LOAD PAN Place the item on the pan The animal weighing test will begin automatically After the configured Delay and test time are computed by the balance the result will be shown displaying FINISHED xx xx x see the section 9 4 4 1 on Animal Weighing Set Up Parameters e During animal weighing if the Print key is pressed the balance will display PAUSED and show the current average e Toresume press Print again or e Pressing Mode will display STOPPED and terminate the weighing e Remove the item from the pan e Press Mode to go back to ANIMAL rUN to weigh another item or Esc to return to normal weighing Adam Equipment Company 2007 Page 21 of 44 9 4 4 1 Animal Weighing Setup Parameters Press Mode and then Up or Down to select Animal Weighing When ANIMAL is displayed press Enter to enter the function Press the Up or Down key
8. The user selects the type of density to be determined and then enters values to be used by the balance The density mode allows the user to use a special Density Kit or use the below pan weighing facility to perform the necessary weighing DENSITY OF SOLIDS To perform the density of solids test the user must have a method to immerse the sample in the chosen liquid The density of the liquid must be known or determined from a look up table For water and ethanol the density will be calculated based on the temperatures entered using the numeric entry method see section 7 1 Steps e Press Mode and then Up and Down keys to select density e Press Enter to enter Density mode e Press the Up and Down keys to select the solids or Liquid method when DENSITY SOLId or DENSITY LIqUId is displayed e Press Enter to select the solids method e Press Up or Down to select the liquid of choice Water Ethanol or Other e Press Enter to select the choice For water and Ethanol the temperature will be asked for Enter the temperature using the numeric entry method see section 7 1 e For the Other choice the density will be asked for Enter the density g cc using the numeric entry method see section 7 1 e Press Enter to continue e The balance will request the weight of the sample in air by displaying AIR WEIGHT Place the item on the pan or receptacle if the density kit is used Press En
9. key to scroll through the units and select the desired unit by pressing the Enter key the display will change to show the weight in the selected weighing unit The available weighing units can be enabled or disabled by the user see section 13 1 Only weighing units that have been enabled will be cycled through when the Unit key is pressed 9 3 1 Weighing Units You can select alternative weighing units to display the weight by pressing the Unit key The common weighing units are Unit Symbol Models Conversion Factor Conversion Factor 1g 1 unit grams 1 Grams g All 1 1 0 2 Milligrams mg not 0 01g units 1000 0 001 3 Kilograms kg All 0 001 1000 4 Carats ct All 5 0 2000 9 Ounces Oz All 0 035273962 28 349523 5 Pounds Ib All 0 0022046 453 5924 10 Troy ounces ozt All 0 032150747 31 103476 6 Grains GN All 15 43236 0 0647989 11 Pennyweights dwt All 0 64301 4865 1 555174 8 Drams dr All 0 564383422 1 7718451 14 HK Taels tl H All 0 026717251 37 42900 13 Taiwan Taels tl T All 0 026666702 37 49995 Adam Equipment Company 2007 Page 15 of 44 15 Sing Taels tl S All 0 026455464 37 799375 12 Mommes mm All 0 266666951 3 749996 16 Tolas T All 0 085735323 11 663804 17 Ticala ti All 0 0612395 16 32933 18 Newtons N All 0 00980665 101 921623 It is possible to set the balance to display only grams
10. since July 2002 by regulation 9 of the Landfill England and Wales Regulations 2002 and Hazardous Waste Regulations 2005 Battery recycling has become topical and the Waste Electrical and Electronic Equipment WEEE Regulations are set to impose targets for recycling Adam Equipment Company 2007 Page 44 of 44 ADAM EQUIPMENT is an ISO 9001 2000 certified global organisation with more than 30 years experience in the production and sale of electronic weighing equipment Products are sold through a world wide distributor network supported from our company locations in the UK USA SOUTH AFRICA and AUSTRALIA ADAMS products are predominantly designed for the Laboratory Educational Medical and Industrial Segments The product range is as follows Analytical and Precision Laboratory Balances Counting Scales for Industrial and Warehouse applications Digital Weighing Check weighing Scales High performance Platform Scales with extensive software features including parts counting percent weighing etc Crane scales for heavy duty industrial weighing Digital Electronic Scales for Medical use Retail Scales for Price computing Adam Equipment Co Ltd Bond Avenue Milton Keynes MK1 1SW UK Tel 44 0 1908 274545 Fax 44 0 1908 641339 E mail sales adamequipment co uk Adam Equipment Inc 26 Commerce Drive Danbury CT 06810 USA Tel 1 203 790 4774 Fax 1 203 792 3406 E mail sa
11. that will reduce the accuracy e Avoid extremes of temperature Do not place in direct sunlight or near air conditioning vents e Avoid unsuitable tables The table or floor H l must be rigid and not vibrate e Avoid unstable power sources Do not use near large users of electricity such as welding t a equipment or large motors e Do not place near vibrating machinery ey A e Avoid high humidity that might cause condensation Avoid direct contact with water Do not spray or immerse the balances in H water f j e Avoid air movement such as from fans or opening doors Do not place near open windows or air conditioning vents e Keep the balance clean Do not stack material on the balances when they are not in use Adam Equipment Company 2007 Page 8 of 44 5 0 SETTING UP THE BALANCE 5 1 ASSEMBLING THE BALANCE Locate the balance on a solid surface free from vibration Gently place the 4 pan supports if not already fitted and then the stainless steel pan on the weighing platform mg models only Connect power to the For best performance calibrate before using Place the draught shield frame and the top cover around the pan for Level the balance using the adjustable feet and spirit level balance let the balance warm up for 30 60 minutes and 5 2 LEVELLING THE BALANCE 5 3 WARM UP TIME Adam Equipment Company 2007 After placing the balance in a suita
12. the same value when the same mass is placed on the centre of the pan for a few tests Verify the balance shows the same reading within a tolerance depending upon the model when a mass is placed at positions around the pan Verify the balance is acceptable throughout the weighing range The balance must give acceptable readings from low weights up to the capacity Poor Repeatability Poor Eccentric loading Usually a mechanical problem A mechanical problem Inspect the area around the pan for hair dust or other obstructions Inspection of the mechanics may be needed for any possible problems Inspect the area around the pan for hair dust or other obstructions Inspection of the mechanics may be needed for any possible problems Readjusting of the Eccentric loading is recommended Adam Equipment Company 2007 Page 40 of 44 Poor Linearity Usually a mechanical problem Electronic Problems Re check repeatability Inspection of the flexures for damage or loose hardware may be required Use the Linearity Function in the service menu to reset linearity A problem in the analogue circuit board or power supplies can cause poor linearity Make sure all mechanical problems have been eliminated first OTHER PROBLEMS Cannot calibrate Zero shifted more than allowed Calibration timeout Check all flexures for damage Reset factory calibration
13. to select rUN or SEtUP Press Enter to select SEtUP to set up the balance for animal weighing Use the Up or Down key to scroll through the options for setting up the mode The display will show MODE AUTO or MODE MANUAL Select MANUAL or AUTO Test time After Enter is pressed to select MODE MANUAL or MODE AUTO it will display TEST TIME XX where XX is the number of seconds over which the balance will average to compute the final weight as set during last operation The XX can be changed from 1 200 using the numeric entry method see section 7 1 To confirm the desired value press Enter Delay Next the display will show DELAY XX where XX is the time in seconds taken by the balance before the sampling starts The XX can be changed from 0 200 using the numeric entry method see section 7 1 To confirm the desired value press Enter Threshold During AUTO mode only While in the AUTO mode the display will next show THRESHOLD XX g where XX is the minimum weight in gram of the item required by the balance to start the process for animal weighing The XX can be changed from 1 to 99 using the numeric entry method see section 7 1 To confirm the desired value press Enter Adam Equipment Company 2007 Page 22 of 44 9 4 5 Density Determination It is possible to determine the density of solids or liquids using this mode
14. ABLE WEIGHING MODES Same steps are followed to enable or disable the weighing modes e Press Enter when MODES is displayed The display will show the first mode i e Parts Counting PARTS together with its enabled state OFF or On The user can enable or disable the parts counting mode by using Up or Down Pressing Enter will confirm the setting and will advance to the next weighing mode Repeat for each mode in turn e Press Mode to advance to setting of the next menu or press Esc to return to normal weighing 13 3 ENABLE SERIAL INTERFACE PARAMETERS The parameters affecting the serial setup are set in a similar manner to the other parameters Press Enter when SERIAL is displayed to enter the sub menu The parameters that can be set are ENABLE The serial port can be set to On or OFF BAUD RATE Set the Baud Rate to 4800 9600 19200 or 38400 PARITY Set the Parity to NONE EVEN or ODD STABLE To print when stable On or regardless of stability OFF CONTINUOUS Set the RS 232 to send data continuously to On or OFF PERIODIC Set the RS 232 to send data periodically set in seconds to On or OFF If On is selected the value can be changed between 1 and 999 seconds using Up and Down FORMAT To send data as a single line of data using the standard format or using a customer designed format FORM 1 or FORM 2 Adam Equipment Company 2007
15. ADAM Adam Equipment PT PGW SERIES P N 8080 Revision D3 January 2007 Software rev 2 39 Adam Equipment Company 2007 Page 2 of 44 Adam Equipment Company 2007 Page 3 of 44 TABLE OF CONTENTS 1 0 KNOW YOUR BALANG Ef pinachnnah EES SEELEN 5 20 SPECIFIC A ee 6 3 0 UNPACKING THE BALANCE hi fcsccatcceiccdsin tent itedccndddeiiands ieeddge Gd ede ee Ae esdi r 7 4 0 LOCATING THE BALANG EI Kee 7 5 0 SETTING UP THE BALANGEN ee ee 8 5 1 ASSEMBLING THE BALANCE ssi setae itt th EE ttle 8 5 27 ULEVEEGING THE BALANCE EE 8 53 WARM UP eg H 8 COD e End ME 9 ZO KEYPAD resets ces ete ed eae ch cen E ete cl a a end able Rai dae E 11 7 1 NUMERIC ENTRY METHODEN 11 8 0 INPUTOUTPUT hee eeh a E 12 90 OPE RATIONS EE 13 Me SE 13 9 2 PIS OCOD BG eieiei ee 13 9 3 WEIGHING EE 14 9 3 1 Weighing UNIS EE 14 94 FUNCTIONS tea AeA EE 15 9 4 1 EEN 16 9 4 2 Percent WelghiNg EEN 17 9 4 3 CNECK Weighing EE 18 9 4 4 Animal Dynamic Wegbng 19 9 4 5 Density Determination AEN 22 100 CALIBRATION UE 24 10 1 MANUAL CALIBRATION ME 24 10 1 1 Calibration using Internal Calibration Mass nsneeeeeennnnnnnnneeeeeeennnnnnneeeeee 24 10 1 2 Calibration using External Calibration mass 24 10 2 AUTOMATIC GALIBRA TION aise a ieee eau ee ease 25 10 3 CALIBRATION EES 25 11 0 RS 232 INTERFACE Drennan inansa uneedespecusd bavesatsadeusnyd ENa a etas E aan a ENa 26 120 ERROR AS HEC ING 1 29 13 0 SUPER
16. N 7E1 or ODD 7 O 1 All lines are terminated with carriage return and line feed lt CR gt lt LF gt In continuous output mode or if single line output on demand is selected the serial output format will be a single line in the form 1234 567 g lt CR gt lt LF gt The format of the single line output will change depending on the mode in which the balance is operating as described below If output on demand is selected the user may optionally configure the serial output as a choice of 3 styles of form either in a default format or in one of two custom formats Each of the custom formats can be configured to output up to 15 lines of data The data types that can be printed are NAME TEXT PRINTED ID number ID no XXXXXXXXXXXX Serial number Serial no XXXXXXXXXXXX Date DATE dd mm yyyy Time TIME hh mm ss Net weight Net xxx xxx g Gross weight Gross XXX XXX g Adam Equipment Company 2007 Page 27 of 44 Tare weight Tare xxX XXX g Unit weight Unit wt xxx xxx g Count Count Xxxx pcs Reference weight Ref wt XXX XXX g Percent Percent xx xxx Checkweigh lower limit LOW XXX XXX g Checkweigh upper limit High xxx xxx g A blank line printed lt CR gt lt LF gt only Any of these can be printed on any of the 15 lines available Not all items need to be used and any one can be used more than once see section 13 3 The data for each form will b
17. Noise or vibration from environment Friction in mechanics Check the balance is positioned correctly to avoid vibration wind or air movement it is on a solid table It is not near sources of heat or cool air Check balance with weights if problem occurs when sample is used Static electricity on the samples can cause drifting and instability Check the area around the weighing pan for hair dust obstructions under the pan A complete inspection of the Adam Equipment Company 2007 Page 39 of 44 mechanics to look for sources of friction may be needed Balance is very unstable and does not weigh correctly Mechanical problems Balance programming Electronic problems A complete inspection of the mechanics to look for sources of friction Verify the A D is also unstable If the A D is OK then suspect the programming of the balance Reset parameters check temperature compensation and redo the calibration Some electronic problems can also cause this But all mechanical problems must be resolved first BALANCE IS NOT ACCURATE You must have accurate and trusted weights to test a balance If you suspect that the balance is not accurate then you must know your weights are accurate A balance calibrated using a bag of flour is not accurate even if it works OK otherwise Balance is not accurate Repeatability Eccentric loading Linearity Verify the balance shows
18. UZZER Out Beeper will sound when the weight on the pan is outside the set limits e Confirm the beeper setting by pressing Enter e Press Enter again to start the Check Weighing e When a weight is placed on the pan now the display will indicate whether the weight is below the LOW LIMIT between the LOW and HIGH LIMITS or higher than the HIGH LIMIT using the capacity tracker e To perform check weighing with another sample press Mode and continue as before e To return to normal weighing press Enter 9 4 4 Animal Dynamic Weighing The balance can be set to weigh animals or moving items also Known as dynamic weighing The balance will collect the weight over a period of time to arrive at an average value and display the value till the operator resets the balance The actual weighing process can begin either automatically when the weight is placed on the pan or when initiated by the operator The weighing unit to be used can be selected as normal using the Unit key before entering the Animal Dynamic Weighing process Steps e Press Mode and then the Up or Down key to select Animal Dynamic Weighing When ANIMAL is displayed press Enter to enter Animal Weighing mode e Press Up or Down to select rUN for starting the animal dynamic weighing using the method previously set or SEtUP to set up the balance for animal weighing see the section 9 4 4 1 Animal Weighing Setup Parameters Adam
19. VISOR MENUS EE 30 13 1 ENABLE WEIGHING UNITS so2ccccceccsccecct ede tideedechennndeanansdeencecndeunenaiaeancnandecnocenas 30 13 2 ENABLE WEIGHING ECH 31 Adam Equipment Company 2007 Page 4 of 44 13 3 ENABLE SERIAL INTERFACE DPARAMETERG 31 13 4 SETUP PARAME TE EE 33 EC Se ET ARTE TEE 34 Ten HE 35 13 6 1 Forgotten PaSSCOdES ccccceeeeeeeeeeeee cette ee eeeeeeeeaeeeeeeeeeeeeeeeeeeneeeeeeeeeeeeeeee 35 140 PE RIPE RASH H 36 14 1 DENSITY DETERMINATION KIT nceicezcerceevaiees Great areal Beco 36 14 2 ANTI VIBRATION TABLE ssssssssssssnnssesesesssrrnnrresssrrrnrrnnrrssserrrrrnnnnnnsserrrnnnnnnennnet 36 14 3 ADAM ERT Eeer ee 36 15 0 SAFETY AND MAINTENANCE sccccosssesccssesecccsssesecsnssesecenseesecnnseeescnnsseesennssess 37 16 0 TROUBLE SHOOTING reie ea EEEE AE E E 37 17 0 REPLACEMENT PARTS AND ACCESSORIES 18 0 SERVICE INFORMATION csisicscisntcictasutciateierinaciatdomtenendumaenmiinensiedcmeaneddintenaitinnanss 41 Adam Equipment Company 2007 Page 5 of 44 1 0 KNOW YOUR BALANCE Thank you for selecting the PGW Balance This Instruction Manual will familiarise you with the installation accessories trouble shooting after sales service information general maintenance of the balance etc and will guide you through the various applications Please read this Manual thoroughly before starting the operation If you need any clarifications feel free to contact your supplie
20. Verify linearity and repeatability The balance may be unstable Verify stability as above Try using a more aggressive filter Calibration weight motor does not stop Check the cables to the motor try plugging the balance into the power again Look for friction in the calibration weight movement Check the opto coupler that controls the motor position RS 232 not working Doesn t print Check parameters match the device connected Verify cable is correct RS 232 circuits damaged Display dark keys beep Display contrast poor Cable unplugged or damaged Check the cables to the display Replace the display which could be damaged To be carried out by authorised technicians only Adam Equipment Company 2007 Page 41 of 44 17 0 REPLACEMENT PARTS AND ACCESSORIES If you need to order any spare parts and accessories contact your supplier or Adam Equipment A partial list of such items is as follows Power Supply Module Stainless Steel top Pan Below Balance Hanger Density Determination Kit Anti Vibration Table Security Lock and Cable Dust Cover Printers etc 18 0 SERVICE INFORMATION This manual covers the details of operation If you have a problem with the balance that is not directly addressed by this manual then contact your supplier for assistance In order to provide further assistance the supplier will need the following information which should be
21. arger stable zone Default is 5 AUTO ZERO Can be set to On or OFF to enable the auto zero function If set to On select from 1 2 or 5d Adam Equipment Company 2007 Page 34 of 44 The sub menu is entered by pressing Enter e Use the Up and Down keys to increase or decrease the value for setting Press Enter to accept the setting and advance to the next item in the menu e Press Mode to advance to setting of the next parameter or Esc to return to normal weighing 13 5 CALIBRATION SETUP This menu allows the user to set the calibration parameters e Press Enter when CAL SETUP is displayed to select the calibration parameters e The options for each parameter can be scrolled through by using the Up or Down key ENABLE NO operator calibration is disabled YES operator calibration is enabled CAL REPORT On Enabled Prints out Calibration report after successful calibration OFF Disabled TIME CAL On Enabled Select time from 1 to 24 hours Default setting is 4 hours OFF Disabled TEMP CAL On Enabled If set to On set the temperature variation from 0 2 to 4 C OFF Disabled INT CAL YES Use Internal calibration mass Only on balances with NO Use external calibration mass internal calibration masses Press Mode to advance to setting of the next menu which PASSCODES or Esc to return to normal weighing Adam Equi
22. ble place level it by using the spirit level on the rear of the balance To level the balance turn the two adjustable feet at the rear of the balance until the bubble in the spirit level is centred Attach the power supply cable to the connector on the rear of the balance Plug the power supply module into the mains The display will indicate the balance serial number if set and the software revision number followed by the capacity of the balance Next the balance will run a self test by displaying all segments followed by a symbol indicating the balance is in busy mode If the balance serial number is not set the display will show dashes The display will show zeroes accompanied by the gt 0 symbol If the balance is not used for a long time it will go back to the auto calibration mode Page 9 of 44 Before you start weighing you have to wait for the balance to achieve a stable internal temperature Typical initial warm up time suggested for a balance already at room temperature is about 1 hour w DDIDOD zl I I I 9 100 6 0 DISPLAY A stable sign is shown when the balance is in stable condition It will turn off if the balance is not stable Exact zero is shown when the 30 symbol is on to the left of the display area 20 Date m m BPTG Time Wi DN Net RI Gemen HEI fil tw ICAL A AA A A KAA 8 wl O mi MMtITHS vl c cE Bee JUSS Ls x 0
23. decrease the flashing digit Advance and Back keys to advance or move back the digit and Enter key to accept the value Adam Equipment Company 2007 Page 12 of 44 8 0 INPUT OUTPUT gt d otso RS 232 15Vde 800ma UO Ext L CEE OR gt Y L d The rear panel has connectors for RS 232 serial and buffered l C bus interfaces and a power input socket Required power input is a low voltage external supply 15VDC 800mA Various communication options e g USB LAN Wireless will be implemented in the future via add on black boxes which will convert the RS 232 serial output or IC to the desired protocol The basic unit includes RS 232 serial communications only Adam Equipment Company 2007 Page 13 of 44 9 0 OPERATIONS 9 1 INITIALISATION Ae Date CAL Ste When the balance is first switched on it PETO Toe a t i varus Will display the balance serial number if Net MMtiTHS kg H H H H H H H enago set software revision model capacity S eit A and then all segments on the display will be shown Overall the time taken is usually 5 10 seconds If a passcode has been set the display will show PASSCODE and the main display will show a zero In this case you must enter the passcode to continue using the numeric entry method see section 7 1 A different passcode may be set for a Supervisor to weigh or to have access to the selected User
24. ds to be set If only one limit is set the other limit is considered to be zero lower or the maximum upper The Check weighing is not active from zero to 50d however the arrows will still be turned on below the fill guide and the weight will still be displayed Steps e Press Mode and then the Up or Down key to select Check Weighing When CHECK is displayed press the Enter key to enter Check Weighing mode e Press Up or Down to set the LOW LIMIT to On or OFF e Press Enter to proceed If the LOW LIMIT was set to On the display will show the current low limit and allow you to change the limit using the numeric entry method see section 7 1 e Press Enter to proceed e If the LOW LIMIT was set to OFF or the setting of the low limit is complete then the display will change to HIGH LIMIT Use Up and Down to set the HIGH LIMIT to On or OFF e Press Enter to proceed e lf the HIGH LIMIT was set to On the display will show the current high limit which can be changed by using the numeric entry method see section 7 1 e Press Enter to proceed Adam Equipment Company 2007 Page 19 of 44 e Next the beeper setting is displayed Press Up or Down to scroll through the options BUZZER OFF Beeper set to off at all times BUZZER In Beeper will sound when the weight on the pan is within the limit or B
25. e as it is not water resistant Liquids may damage the case and if it gets inside the balance it may cause damage to the electronics Material that has a static electric charge could influence the weighing Discharge the static electricity of the samples if possible Another solution to the problem is to wipe both sides of the pan and the top of the case with an anti static agent 16 0 TROUBLE SHOOTING Service of a PGW balance will generally be necessary when the balance does not perform as expected The balances are not user serviceable For Service Information see section 18 0 and contact Adam equipment or your supplier Problems usually fall into one of the following categories User Problems The user is asking the balance for something it cannot do or is confused by the modes and functions of a balance It is also possible the user has set a parameter that has affected the balance operation Resetting the parameter to a normal value will restore operation Mechanical Problems The balances consist of complicated and fragile mechanical devices They can be damaged by placing a weight on it which is too high for the balance or by dropping the balance or occasionally shipping it without taking care The most fragile parts are the flexures Dust dirt spills and other foreign objects in the balance can also cause problems Adam Equipment Company 2007 Page 38 of 44 Electronic Problems These are the rarest
26. e preceded by a start of header lt SOH gt character 01 and terminated with an end of transmission lt EOT gt character 04 These characters will be ignored by a serial printer but will allow a computer program which reads the data to distinguish between this block report format and the single line output format described above STANDARD FORMAT The balance will print the following data as the standard form The standard form cannot be changed The format of the custom forms 1 and 2 will be the same as the standard form until modified by the user Line 1 Date Line 2 Time Line 3 Blank line Line 4 ID number Line 5 Blank line Line 6 Result Line 7 Blank line Line 8 Blank line This will result in a printout that looks like Date 23 09 04 Time 15 45 ID No 123456 Net 123 456 g NOTE The format of the results line will change depending on the mode in which the balance is operating e g Normal weighing Check weighing Animal weighing 123 456 g Parts counting 1234 pcs Percent weighing 12 345 Adam Equipment Company 2007 Page 28 of 44 INPUT COMMANDS USING REMOTE KEYS The balance can be controlled with the following commands sent using remote keys such as from a PC The commands must be sent in upper case letters i e KT not kt Press the Enter key of the PC after each command the action of Carriage Return is denoted as lt CR g
27. eight involved in sending the faulty units or parts to the service centre should be borne by the purchaser The warranty will cease to operate if the equipment is not returned in the original packaging and with correct documentation for a claim to be processed All claims are at the sole discretion of Adam Equipment This warranty does not cover equipment where defects or poor performance is due to misuse accidental damage exposure to radioactive or corrosive materials negligence faulty installation unauthorised modifications or attempted repair or failure to observe the requirements and recommendations as given in this User Manual Repairs carried out under the warranty does not extend the warranty period Components removed during the warranty repairs become the company property The statutory right of the purchaser is not affected by this warranty The terms of this warranty is governed by the UK law For complete details on Warranty Information see the terms and conditions of sale available on our web site Adam Equipment Company 2007 Page 43 of 44 CE Manufacturer s Declaration of Conformity This product has been manufactured in accordance with the harmonised European standards following the provisions of the below stated directives Electro Magnetic Compatibility Directive 89 336 EEC Low Voltage Directive 73 23 EEC Adam Equipment Co Ltd Bond Avenue Denbigh East Milton Keynes MK1 1SW Un
28. ems ters sre dart th A Adam Equipment Company 2007 This display includes areas for the weight value up to 7 digits symbols for common weighing units tare stability zero and low battery arrows used for check weighing a 0 100 bar graph and a text area for menu The LCD has 7 x 7 segment digits for the weight and 10 x 14 segment digits for messages symbols for weighing units and common use such as stability etc The 14 segment digits allow a large amount of flexibility for any unusual weighing unit and messages concerning operation or errors The Percentage indicator known as capacity tracker has 10 large segments for showing the percentage of the total range used This is also used during check weighing The 10 digit text area is used to display the current weighing mode or to guide the user through processes such as density determination Page 10 of 44 SYMBOLS AND TEXT The LCD has unique symbols to indicate the following gt 0 Zero v Busy 2 JS Stable eee A fill guide with set point markers A g mg kg ct oz Ib ozt GN Text is shown for the weighing units and modes dwt dr tl H tl T tl S MM T ti N g cc Pcs M and S INDICATORS CAL When calibration is occurring or about to occur a When a temperature is shown or a temperature driven calibration is to occur tj For a time driven calibration Net When a net wei
29. ered per line Continue until the formatting of the form is complete There are 15 lines of possible data After the 15 line has been set or END has been selected the balance will return to the RS 232 Sub menu Press Mode to advance to setting of the next menu or press Esc to return to normal weighing Adam Equipment Company 2007 Page 33 of 44 13 4 SETUP PARAMETERS The user parameters that control the balance are shown under the SETUP When SETUP is displayed press the Setup Enter key The options for each parameter can be scrolled through by using the Up or Down key LANGUAGE TIME English French German Spanish Set Time using the numeric entry method see section 7 1 DATE DATE FORM EUROPE dd mm yy USA mm dd yy Set Date using the numeric entry method see section 7 1 INST ID Enter a user number to identify this balance BUZZER On Enable OFF Disable BACKLIGHT On OFF AUTO POWER DOWN Set the time after which the unit will go into Stand by power settings On Enable OFF Disable If set to On the options are 1 to 9 minutes FILTER Set a value for the amount of filtering to be done seta value of 5 10 20 30 40 or 50 A larger number is more filtering and a slower response Default is 20 STABILITY Set a value to be used to determine balance stability set a value of 1 2 5 or 10d A larger number corresponds to a l
30. f passcodes are enabled the balance will ask for it by displaying PASSCODE 0 If a wrong code is entered an ERROR CODE message will flash and the balance will return to weighing mode If the passcode has been enabled and entered the balance will allow the operator to access the Supervisor s menus When the display shows SUPERVISOR press Enter to view the topics that can be modified From this menu the user can enable disable weighing units or modes set balance parameters for the conditions set time and date set parameters for the RS 232 interface calibration parameters and security parameters The Up and Down keys will cycle through the main headings pressing the Enter key will enter the heading and sub parameters or options can be set Press Mode to come out of a sub menu or to Esc to return to normal weighing from any menu ENABLE WEIGHING UNITS When UNITS is displayed press Enter The display will show the symbol for the first unit e g carats ct together with its enable state OFF or On The user can then enable or disable the carats unit by using Up or Down Pressing Enter will confirm the setting and will advance to the next weighing unit Repeat for each weighing unit in turn Gram is always set to On Press Mode to advance to setting of the next menu or press Esc to return to normal weighing Adam Equipment Company 2007 Page 31 of 44 13 2 EN
31. ght is shown 0 100 When the capacity tracker is showing percent of maximum range used Adam Equipment Company 2007 Page 11 of 44 7 0 KEYPAD Print Mode oe The keypad has the following keys to operate the balance Keys Primary function Secondary function To turn the balance to ON or QO OFF gt 0 T or A combined zero and tare To escape from setup Esc function functions and modes Unit or Selects weighing units by To decrement or change a Down cycling through a set of displayed value or scroll enabled units through options backwards Mode gt or Advance Selects functions by cycling through a set of enabled functions for example parts counting animal weighing percent weighing or density To advance a flashing digit by one position to the right To go back by one step during setup functions Print or Back Instructs the balance to print data To advance a flashing digit by one position to the left Cal or Starts the calibration function To increase or change a Up displayed value or scroll through options forward Setup 1 Enters a function or saves a or Enter value during setting up such as entering unit weight or check weighing limits manually 7 1 NUMERIC ENTRY METHOD To set a value when required use the keys as given below Up and Down keys to increase or
32. howing LOAD 0 Make sure the pan is empty then press the Enter key to continue e The balance will then show the value of the calibration mass required sounding a beep for example LOAD 1000 g e Place the mass on the balance Press Enter to continue e The display will show the busy symbol and after calibration is complete it will display UNLOAD sounding a beep Remove the weight Another beep will be heard confirming the unloading action The balance will then return to normal weighing Adam Equipment Company 2007 Page 25 of 44 10 2 AUTOMATIC CALIBRATION The balance will have the ability to calibrate or ask for calibration when the balance has automatic calibration enabled and the conditions of the automatic calibration have been meet Conditions that will cause an automatic calibration are 1 Internal temperature change greater than a preset amount typically 2 C 2 Time since last calibration exceeds a preset time typically 4 hours or 15 minutes after power is applied On the balances with internal calibration the calibration will be done automatically when the balance is at a stable zero The user knows a calibration is asked for by the flashing of the CAL symbol on the display The display will show a 5 second countdown when calibration will start If the user presses the Esc key the calibration will be delayed one minute to allow time for a process to be finished On balances wi
33. ited Kingdom FCC COMPLIANCE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment The equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Shielded interconnect cables must be employed with this equipment to insure compliance with the pertinent RF emission limits governing this device Changes or modifications not expressly approved by Adam Equipment could void the user s authority to operate the equipment WEEE COMPLIANCE ay Sealed Lead Acid Battery a v Must be recycled Properly Any Electrical or Electronic Equipment EEE component or assembly of parts intended to be incorporated into EEE devices as defined by European Directive 2002 95 EEC must be recycled or disposed using techniques that do not introduce hazardous substances harmful to our health or the environment as listed in Directive 2002 95 EC or amending legislation Battery disposal in Landfill Sites is more regulated
34. kept ready A Details of your company Name of your company Contact person s name Contact telephone e mail fax or any other methods Details of the unit purchased This part of information should always be available for any future correspondence We suggest you to fill in this form as soon as the unit is received and keep a print out in your record for ready reference Model name of the balance PGW Serial number of the unit Software revision number Displayed when power is first turned on Date of Purchase Name of the supplier and place C Brief description of the problem Include any recent history of the unit For example Has it been working since it s delivered Has it been in contact with water Damaged from a fire Electrical Storms in the area Dropped on the floor etc Adam Equipment Company 2007 Page 42 of 44 WARRANTY INFORMATION Adam Equipment offers Limited Warranty Parts and Labour for the components failed due to defects in materials or workmanship Warranty starts from the date of delivery During the warranty period should any repairs be necessary the purchaser must inform its supplier or Adam Equipment Company The company or its authorised Technician reserves the right to repair or replace the components at the purchaser s site or any of its workshops depending on the severity of the problems at no additional cost However any fr
35. les adamequipment com Adam Equipment S A Pty Ltd 7 Megawatt Road Spartan EXT 22 Kempton Park Johannesburg Republic of South Africa Tel 27 0 11 974 9745 Fax 27 0 11 392 2587 E mail sales adamequipment co za Adam Equipment S E ASIA Pty Ltd 2 71 Tacoma Circuit Canning Vale Perth WA 6155 Australia Tel 61 0 8 6461 6236 Fax 61 0 8 9456 4462 E mail sales adamequipment au com Copyright by Adam Equipment Co Ltd All rights reserved No part of this publication may be reprinted or translated in any form or by any means without the prior permission of Adam Equipment Adam Equipment reserves the right to make changes to the technology features specifications and design of the equipment without notice All information contained within this publication is to the best of our knowledge timely complete and accurate when issued However we are not responsible for misinterpretations which may result from the reading of this material The latest version of this publication can be found on our Website Visit us at www adamequipment com Adam Equipment Company 2007
36. menus If the passcode has not been set the balance will continue as below The display will show zero reading along 20 with the zero symbol ane and the weighing unit last used If automatic GbE time calibration is enabled the balance va b g i i ei A 1 1 be will calibrate after power up and again after the pre set time interval 9 2 PASSCODES If a passcode has been set to limit access to the weighing functions of the balance the display will show PASSCODES with the main digit set to zero The display will change to show 7 digits set to zero with the rightmost digit flashing Use the numeric entry method see section 7 1 to enter the code Make sure to enter the correct passcode to continue See the Section 13 6 for details Adam Equipment Company 2007 Page 14 of 44 9 3 WEIGHING Press 0 T to zero the balance if required 0 will be displayed Place a mass on the pan and the weight will be displayed If a container is used press 0 T to tare the balance when the balance symbol is on Net will be displayed to indicate that the balance is tared When the display shows zero place the item to be weighed Only the net weight will be displayed The capacity tracker at the bottom of the LCD will indicate the weight graphically with respect to the maximum weighing capacity At any time the Unit key can be pressed to select another unit Use the Up or Down
37. of the problems affecting balances If an electronic problem is suspected make sure the mechanical problems that can cause similar symptoms have been eliminated before attempting electronic repairs With the exception of cables most electronic repairs are solved by board replacement The table that follows is a guide of common problems and their solutions Note that many problems may have multiple solutions and there may be problems found that are not listed in the table contact Adam Equipment or your supplier For Service Information BALANCE DOES NOT FUNCTION Problems Possible causes Suggestions The balance is dead when power is applied Power supply failure Check adapter is working Check adapter is correct for the balance Normal adapter is 15VDC 800mA Power supply circuit board failure Short circuit on any circuit board The display does not turn on but the calibration motor moves when power is applied Power is getting to balance display is not working Display cables may be faulty Display module failure The display stays on the initial test screen when power is applied Calibration weight motor is on Unstable balance Balance not working correct Power supply Check if balance is stable by using service menu and view A D values Put draught shield over pan Check power supplies BALANCE WORKS BUT IS NOT STABLE Balance is unstable by a few divisions
38. only kilograms carats ounces measure pounds troy ounce grains pennyweights drams taels Hong Kong Taiwan and Singapore mommes tolas ticals and Newtons Interface RS 232 bi directional Operating 10 C 40 C temperature Power supply 15 VDC 50 60 Hz 800 mA Calibration Internal or External Selectable automatic calibration due to change in time or temperature External 100g 200 g 500g 1000g 2000 g calibration mass Display Backlit LCD with dual digits 24 mm high and capacity tracker Draught shield Supplied as standard Not applicable Housing Die cast aluminium housing glass weighing chamber for models with 1mg readability Pan size 140x140mm 192x192mm Overall dimensions 251 x 358 x 104 mm w x d x h Net weight 5 5 kg Applications Weighing Check weighing Percentage weighing Parts counting Animal dynamic weighing Density determination The same models are available with motorised internal calibration as series denoted with i Adam Equipment Company 2007 Page 7 of 44 3 0 UNPACKING THE BALANCE Remove the balance from the packing by carefully lifting it out of the box Inside the box you will find everything needed to start using the balance CID 4 0 LOCATING THE BALANCE AC adapter Four rubber pan supports Stainless Steel Top Pan Draught shield for mg models only This User Manual Tee K NNN AN ZE e The balance should not be placed in a i location
39. pment Company 2007 Page 35 of 44 13 6 PASSCODES To enable the security features in this balance it is necessary to set passcodes There are 2 passcodes called Operator Passcode and Supervisor Passcode The Operator Passcode allows an authorised user to operate the basic weighing functions of the balance but will not allow access to the Supervisor Menus if the Supervisor Passcode has been set To change or disable a Passcode it will be necessary to enter the current passcode Press Enter when PASSCODES is displayed to enter this section OPERATOR Enter the current passcode OLD first then enter a new passcode if desired A passcode set to zero will disable the security feature and allow unlimited access SUPERVISOR First enter the current passcode OLD and then enter a new passcode if desired A passcode set to zero will disable the security feature and allow unlimited access 13 6 1 Forgotten Passcodes Keep a record of the passcode to ensure you can access this section again If however you have forgotten your passcode you can still gain access by entering a universal code If you have forgotten the current passcode a code of 15 will always allow you to enter the Supervisor area Using the Supervisor menus go to the PASSCODE section and reset the operator or Supervisor passcode using the 15 code as the old number when asked Adam Equipment Company 2007 Page 36 of
40. r or Adam Equipment PRODUCT OVERVIEW The PGW balances are ideal for laboratory and general purpose weighing The balances can also be used for some advanced weighing functions FEATURES e Large easy to read LCD display with backlight Standard applications include weighing check weighing percentage weighing parts counting animal dynamic weighing and density determination Internal Calibration using motorised internal calibration weight External calibration models available f Bi directional RS 232 interface Pow series Can be configured to print a GLP Compliant report after each calibration to include the time date balance number and a verification of the calibration Automatic temperature compensation Display in 4 languages English French German and Spanish Multiple weighing units Capacity tracker Date and time Easy to use sealed keypad Below balance weighing facility Password protection Security locking point Robust metal casing Adam Equipment Company 2007 Page 6 of 44 2 0 SPECIFICATIONS Model PGW PGW PGW PGW PGW PGW PGW PGW 153e 253e 453e 753e 1502e 2502e 3502e 4502e Maximum 150g 250g 450g 750g 1500g 2500g 3500g 4500g capacity Readability 0 001g 0 01g Tare range Full Repeatability 0 001g 0 01g Linearity 0 002g 0 02g Units of grams milligrams for 0 001g units
41. t as shown below Basic Input Commands IKT lt CR gt Tares the balance to display the net weight This is the same as pressing the Zero Tare key when the balance is in the normal weighing mode IKS lt CR gt Enters the Setup section This is the same as pressing the Setup key when the balance is in the normal weighing mode Once entered the Setup section the balance can be controlled remotely using the Input Commands as mentioned in this table which will perform the same key functions as described in section 13 0 IKP lt CR gt Transmits data over RS 232 interface This is the same as pressing the Print key when the balance is in the normal weighing mode IKM lt CR gt Enters the Modes section This is the same as pressing the Mode key when the balance is in the normal weighing mode IKC lt CR gt Enters the Calibration section This is the same as pressing the Cal key when the balance is in the normal weighing mode IKU lt CR gt Enters the Unit selection section This is the same as pressing the Unit key when the balance is in the normal weighing mode Invalid Input Command If an invalid command is received then the command is returned as follows Invalid Command Message returned Remarks INT lt CR gt IEU lt CR gt Command character is not K IKK lt CR gt IEK lt CR gt Key character is not T S P M C or
42. ter to determine the value e After completion of the air weighing the balance will request the weight in liquid by displaying LIQUID WT Submerge the item in the liquid and Adam Equipment Company 2007 Page 23 of 44 press Enter to start the liquid weighing The balance will compute the density of the sample and display it as DENSITY XXXX g cc After completion of the liquid weighing remove the item from the pan Press Mode to continue with a new sample or press Esc to return to normal weighing DENSITY OF LIQUID When finding the density of a liquid it is necessary to weigh a sample of known volume in air and then in the liquid The volume of the sample must be entered by the user The last known volume is stored for use at any time If using the density determination kit the volume of the plumb is marked on its support i e 10 123 Steps Press Mode and then Up and Down to select Density Press Enter to select the Density mode Use Up and Down to scroll through the solid or liquid method When DENSITY LIqUlId is displayed press Enter to enter the liquids method The volume will be asked for Enter the volume using the numeric entry method see section 7 1 or continue using the last volume entered Press Enter to continue The balance will request the weight in air by displaying AIR WEIGHT Place the glass plumb supplied with the density determination kit in air on the
43. th external calibration the balance will call for calibration to be carried out by flashing the CAL symbol on the display As soon as the balance is calibrated the symbol will be turned off The Auto calibration feature can be enabled disabled or changed within the user options to meet the requirements of the users 10 3 CALIBRATION ERRORS Occasionally during calibration an error will be detected These errors can be caused by Unstable readings Improper calibration weights being used Large shifts of zero from the factory settings When an error is found a displayed message will be shown and the calibration must be done again If the balance has error messages more than once it is possible the mechanics have been damaged Adam Equipment Company 2007 Page 26 of 44 11 0 RS 232 INTERFACE The balances have the ability to send or receive data over the serial interface The weighing data can be sent over the interface either automatically or when the user presses the Print key The user has control over what data is to be printed The following gives a description of the RS 232 interface HARDWARE The RS 232 interface is a simple 3 wire connection The input and output connections are Connector 9 pin D sub miniature socket Pin 2 input to balance RXD Pin 3 output from balance TXD Pin 5 Signal ground GND Handshaking is not applied Baud rate 4800 9600 19200 38400 Parity NONE 8N1 EVE
44. weighing pan and press Enter to start the air weighing On completion of the air weighing the balance will request the weight in liquid by displaying LIQUID WT Submerge the glass disk in the liquid and press the Enter key The balance will compute the density of the liquid and display it Remove the item from the pan Press Mode to continue with a new sample or press Esc to return to normal weighing Adam Equipment Company 2007 Page 24 of 44 10 0 CALIBRATION The PGW XXXe series can only be calibrated with an external mass The PGW XXXi series can be calibrated with either an internal mass default method or an external mass if setup by the user to do this See the User Parameters section 10 1 MANUAL CALIBRATION Pressing the Cal key will start calibration Calibration can also be initiated by a change in internal temperature or a set time period as determined by the user see section 13 5 10 1 1 Calibration using Internal Calibration mass e Pressing Esc will abort the calibration at any time e Check the display is at zero Tare if necessary e Calibration will begin automatically When calibration is complete the balance will return to weighing 10 1 2 Calibration using External Calibration mass e Pressing Esc will abort the calibration at any time e Check the display is at zero Tare if necessary e Press the Cal key e The display will show the balance setting a new Zero condition by s
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