Adam Equipment PGW SERIES (P.N. 8080, Revision D3, January 2007) Software rev.: 2.
Page 2 of 44 © Adam Equipment Company 2007
Page 3 of 44 TABLE OF CONTENTS 1.0 KNOW YOUR BALANCE ..........................................................................................5 2.0 SPECIFICATIONS .....................................................................................................6 3.0 UNPACKING THE BALANCE ....................................................................................7 4.0 LOCATING THE BALANCE .......................................................................................7 5.
Page 4 of 44 13.3 ENABLE SERIAL INTERFACE PARAMETERS..................................................31 13.4 SETUP PARAMETERS.......................................................................................33 13.5 CALIBRATION SETUP........................................................................................34 13.6 PASSCODES ......................................................................................................35 13.6.1 Forgotten Passcodes ....................................
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 supplier or Adam Equipment.
Page 6 of 44 2.0 SPECIFICATIONS Model* Maximum capacity Readability Tare range Repeatability Linearity (±) Units of measure Interface Operating temperature Power supply Calibration External calibration mass Display Draught shield Housing Pan size Overall dimensions (w x d x h) Net weight Applications *The PGW 153e 150g PGW 253e 250g PGW 453e 450g PGW 753e 750g PGW 1502e 1500g 0.001g PGW 2502e 2500g PGW 3502e 3500g PGW 4502e 4500g 0.01g Full 0.001g 0.01g 0.002g 0.02g grams, milligrams (for 0.
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 balance9 9 9 9 9 AC adapter Four rubber pan supports Stainless Steel Top Pan Draught shield (for mg models only) This User Manual 4.0 LOCATING THE BALANCE • The balance should not be placed in a location that will reduce the accuracy. • Avoid extremes of temperature.
Page 8 of 44 5.0 SETTING UP THE BALANCE 5.
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. 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 “Î0Í “ symbol is on to the left of the display area. 6.
Page 10 of 44 SYMBOLS AND TEXT The LCD has unique symbols to indicate the following: Î0Í Zero Busy Stable A fill guide with set point markers g, mg, kg, ct, oz, lb, 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” “ºC” “ti” “Net” “0%”, “100%” When calibration is occurring or about to occur When a temperature is shown or a temperature driven calibration is to occur For a time driven calibration When a net weight is s
Page 11 of 44 7.0 KEYPAD The keypad has the following keys to operate the balance. Keys [Î0/TÍ] or [Esc] [Unit] / Ð or [Down] [Mode] / Î or [Advance] [Print] / Í or [Back] [Cal] / or Ï [Up] [Setup]/ or [Enter] 7.
Page 12 of 44 8.0 INPUT/OUTPUT The rear panel has connectors for RS-232 serial and buffered I2C-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 I2C to the desired protocol. The basic unit includes RS-232 serial communications only.
Page 13 of 44 9.0 OPERATIONS 9.1 INITIALISATION When the balance is first switched on, it will display the balance serial number (if set), software revision, model capacity 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).
Page 14 of 44 9.3 WEIGHING • Press [Î0/TÍ] to zero the balance, if required • “Î0Í “ will be displayed • Place a mass on the pan and the weight will be displayed • If a container is used press [Î0/TÍ] 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.
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. Grams will always be one of the units enabled, by default. 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: Unit g. ct.
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.
Page 17 of 44 9.4.2 Percent Weighing Percent weighing will be done by defining a certain weight to be 100%.
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.
Page 19 of 44 • Next the beeper setting is displayed.
Page 20 of 44 MANUAL MODE When the balance is in the MANUAL mode – If [Enter] is pressed when “rUN” is selected, balance will display “START ?” 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.
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 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”.
Page 22 of 44 9.4.5 Density Determination It is possible to determine the density of solids or liquids using this mode. 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.
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.
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.
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 2ºC 2. Time since last calibration exceeds a preset time, typically 4 hours or 15 minutes after power is applied.
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.
Page 27 of 44 Tare weight Unit weight Count Reference weight Percent Checkweigh lower limit Checkweigh upper limit A blank line printed Tare: xxx.xxx g Unit wt: xxx.xxx g Count: xxxx pcs Ref. wt: xxx.xxx g Percent: xx.xxx % Low: xxx.xxx g High: xxx.xxx g 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).
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 as shown below). Basic Input Commands: !KT 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.
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.
Page 30 of 44 13.0 SUPERVISOR MENUS Pressing the [Setup] key while in normal weighing gives access to the menus. • When [Setup] is pressed and passcodes are not enable the display will show the message “SUPERVISOR”.
Page 31 of 44 13.2 ENABLE WEIGHING MODES Same steps are followed to enable or disable the weighing modes. • 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.
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.
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 English French German Spanish TIME 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.
Page 34 of 44 The sub-menu is entered by pressing [Enter] – • 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 • 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.
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.
Page 36 of 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.
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 balance 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.
Page 38 of 44 Electronic Problems: These are the rarest 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.
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 *A complete inspection of the mechanics to look for sources of friction. Balance programming *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. Electronic problems Some electronic problems can also cause this.
Page 40 of 44 Poor Linearity Usually a mechanical problem 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 Electronic Problems *A problem in the analogue circuit board or power supplies can cause poor linearity.
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.
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.
Page 43 of 44 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.
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. ADAM’s products are predominantly designed for the Laboratory, Educational, Medical and Industrial Segments.
