Operating instructions METTLER TOLEDO SG Balances u Men C F 0/T 0d 1/1 Cal O nO f f
Overview of your SG balance Front view SG Rear view SG 3 8 nu Meenu M CC 4 FF 2 7 00/ /TT 6 0d 1/1 al C OOnOnf ff f O 1 5 Display SG 14 15 16 17 NetB AutoCal PTG 13 12 16 + – GN PCS º/ºº # ctlo t kgmo 11 10 9
Display, controls and connections of your SG balance Front No. Rear Designation No. Designation 1 Display 06 Fuses 2 Weighing pan 7 LocalCAN interface connection 3 Leveling foot 8 Fastening for steel wire antitheft device 4 Level check 5 Control keys Display Designation No. Designation Weighing units 14 Status indicator of the weighing process adapter 10 Alphanumeric display (result, menu, etc.
Contents 4 Contents 1. 1.1 1.2 1.3 1.4 Getting to know your SG balance␣ ............................................................................................. Introduction .............................................................................................................................. Overview of the SG balances ...................................................................................................... What you should know about these instructions ...........................
Contents 5 4.11 4.12 4.13 4.14 4.15 4.16 Selecting weighing unit 2 ........................................................................................................... Switching the automatic zero-point correction (Auto Zero) on or off ................................................. Preselecting the automatic shutdown .......................................................................................... Selecting the switch-on mode .............................................................
Getting to know your SG balance 6 1. Getting to know your SG balance The section provides you with detailed information on your SG balance. Please read this section through carefully even if you already have experience with METTLER TOLEDO balances and scales and be sure to familiarize yourself with the safety notes! 1.1 Introduction Thank you for deciding to purchase a balance from METTLER TOLEDO.
Getting to know your SG balance 7 1.3 What you should know about these instructions These instructions contain orientation aids which facilitate your search for the desired information. Work steps are marked by “•”, whereas enumerations are preceded by a “–” . Key designations are enclosed in double angle brackets (e.g. «On/Off» or «±»). 1/10 d Cal The keys of your SG balance have two assignments: The first function of a key (e.g.
Getting to know your SG balance 8 1.4 Safety has priority Please note the following instructions for safe and problem-free operation of your SG balance. Read through these operating instructions carefully, even if you already have experience with METTLER TOLEDO balances and scales. It is essential to note the instructions in section 2 when putting your new balance into operation. Use SG balances only in closed rooms.
Putting the balance into operation 9 2. Putting the balance into operation In this section you will learn how you unpack and set up your new balance and prepare it for operation. On completion of the steps described in this section, your balance is ready for operation. 2.1 Unpacking and checking the standard equipment SG balances are supplied in an environmentally harmless package.
Putting the balance into operation 10 2.2 Selecting or changing the location Your balance is a precision instrument and will thank you for an optimum location with high accuracy and dependability. Firm, vibration-free position as horizontal as possible. No direct sunlight. No excessive temperature fluctuations. No excessive drafts (powerful air conditioning systems can also cause drafts). You will find further tips for an optimum location in section 6.1.
Putting the balance into operation 11 2.3 Leveling the balance Procedure with SG balances • Screw one of the four leveling feet in completely. Level balance using the three remaining leveling feet, which should all be at the same level. Unscrew the leveling foot you first screwed in until it touches the support. 1 PG/SG 06 • The balance must be releveled each time its location is changed. 2.4 Power supply SG balances adapt themselves automatically to a line voltage between 100 V and 240 V 50/60 Hz.
Putting the balance into operation 12 2.5 Adjusting (calibrating) the balance An adjustment (i.e. adjustment to the acceleration due to gravity) is needed when putting into operation for the first time and after every location change. In colloquial language, this operation is frequently also referred to as “calibration” (to avoid misunderstandings, this term is enclosed in brackets when necessary).
Putting the balance into operation 13 The following displays appear during the adjustment: Cal The internal weight is loaded. -----Cal The internal adjustment weight is raised. 0 Cal The balance processes the adjustment results. -----The balance reports successful completion of the adjustment (calibration). CAL donE The balance automatically returns to the weighing mode. =2 g C Abort --BALANCE 18.01.94 CALIBRATION-11:23:34 METTLER TOLEDO Balance Type: SG32000 SNR: 1105238536 Int.
Weighing made simple 14 3. Weighing made simple This section shows you how to perform simple weighings, how you can accelerate the weighing process and print out the weighing result and transfer data. 3.1 Switching the balance on and off Your balance is set in the factory so that it automatically switches to the weighing mode when you load a weight in the standby mode. On Off 0 g On Off OFF To switch the balance on, press the «On/Off» key briefly.
Weighing made simple 15 3.2 Taring the balance The weight of any weighing container can be “tared” at a keystroke to set the display to zero. The taring range covers the entire weighing range of your balance. If you wish to tare a container, place it on the weighing pan. Close all draft shield doors. Press the «#» key briefly to start the taring operation. ------ 0 g Taring runs automatically.
Weighing made simple 16 3.3 Performing a simple weighing Performing a simple weighing is described only for the sake of completeness as this operation comprises only two work steps. After you have tared the balance, place the weighing sample on the pan. Menu C F 0/ T SG 08 0d 1/1 Cal OnOf f 40=6 g Wait until the circular symbol of the stability detector fades. Fading of the symbol indicates that the weighing result is stable. Now read off the weight in the display. 50=5 g 3.
Weighing made simple 17 3.5 Switching weighing units Your balance can display the weighing result in two different weighing units. How you preselect the two weighing units is described in sections 4.10. and 4.11. You can switch between the two weighing units at a keystroke: The balance shows the result in weighing unit 1. 30260 g Press the «“» key briefly. F 30.260 kg The balance shows the result in weighing unit 2. By pressing the «“» key again, you can return to weighing unit 1.
Weighing made simple 18 3.6 DeltaRange balances with movable fine range METTLER TOLEDO DeltaRange balances have a movable fine range with 10 times higher readability. An additional decimal place always appears in the display in this fine range. 1g 0.1 gmg 1g 3200 g 0g The illustration opposite shows the principle of the movable fine range in which one extra decimal place is shown (in this example, the movable fine range encompasses 3200 grams). 16100 g 0.
The menu 19 4. The menu 4.1 What is the menu? The menu allows you to adapt your balance to your specific weighing needs. You can use the menu to change the settings of your balance and activate functions. The menu contains 14 different menu options, each of which offers various selection possibilities. SECUrEd 14. Settings 1. Reset rESEt 2. Adjustment FACT 3. Automatic adjustm. call-up Cal InFo oFF 4. Function F nonE 5. Vibration adapter 2 6. Weighing process adapter 2 7.
The menu 20 4.2 Menu operation In the section you will learn how to work with the menu. You will find information on the individual menu options and the available settings in the following sections. How to switch from the weighing mode to the menu The balance operates in the normal weighing mode. 4876.2 g Press and hold the «Menu» key until the balance switches to the menu. Menu Ÿ≈ENU After release of the «Menu» key, the balance shows the first menu option (“Reset”) directly with the current setting.
The menu 21 How to select the desired setting in a menu option Unit 1 g “» key. The display shows the next setting available in the Briefly press the «“ “» key is pressed, the balance switches selected menu option. Each time the «“ to the next setting. After the last setting, the first is shown again.
The menu 22 4.3 Reset In this menu option you have the possibility to reset all menu settings to the factory setting. Resetting settings to factory setting Menu rESEt long r donE 4.4 If you select this option and then save and quit the menu, all menu settings are reset to the values set in the factory. Before the return to the weighing mode, the resetting is briefly confirmed in the display.
The menu 23 Calibration with external weights (VariCal) The balance is calibrated with a selectable* external weight. UAr∫CAL * With certified versions of the balances, the weight is preallocated and can not be changed. Test of the balance with internal weight tESt int In this setting the accuracy test of the balance is performed with the internal weight. Test of the balance with external weights The accuracy of the balance can be checked with any external weight.
The menu 24 4.6 Preselecting a function In this menu option you can preselect a function which you will then have available in the weighing mode at a keystroke. The following functions are available. No function preselected You have no function available in the weighing mode (factory setting). F nonE Piece counting Your balance counts the pieces you add to or remove from the weighing container.
The menu 25 Dynamic weighing with automatic start F dYn A Your balance determines an average weighing result over a preset time interval. This setting is suitable for unstable weighing samples (e.g. animals). With this setting, the dynamic weighing starts automatically. Dynamic weighing with manual start F dYn Ÿ≈ Analogous to dynamic weighing with automatic start, but the weighing cycle must be started manually. You will find information on working with the functions in section 5. 4.
The menu 26 4.8 Setting the weighing process adapter The weighing process adapter can be used to match your balance to the different types of weighing (absolute weighing, fine dispensing, etc.). The following settings are available: Universal setting 2 This is the factory setting, it is suitable for all types of weighing. The display always corresponds to the current weight. Absolute weighing 3 This setting is suitable for checkweighing and for the weight determination of samples.
The menu 27 4.9 Selecting the repeatability The circular symbol of the stability detector can be found in the bottom left corner of the display. As soon as the weighing result is within preset limits for a certain period of time, the weighing result is considered stable and the symbol for the stability detector fades. You can use the setting of the repeatability (“Repro-Set”) to determine the time period during which the result must lie within the limits for it to be considered stable.
The menu 28 4.10 Selecting weighing unit 1 In this menu option you determine the unit* in which the weighing result should be displayed. The following units* are available: Unit 1 g Display Designation g gram kg kilogram lb pound oz ounce ozt Troy ounce dwt pennyweight ct carat mo momme m mesghal You will find a table with the conversion factors for the different units in section 8.2 of these operating instructions.
The menu 29 4.11 Selecting weighing unit 2 In this menu option you determine the additional unit* in which the weighing result should be displayed. The following units* are available: Unit 2 kg Display Designation kg kilogram lb pound oz ounce ozt Troy ounce dwt pennyweight ct carat mo momme m mesghal H tl Hong Kong taels S tl Singapore taels t tl g Taiwan taels gram You will find a table with the conversion factors for the different units in section 8.
The menu 30 4.12 Switching the automatic zero-point correction (Auto Zero) on or off In this menu option you can switch the automatic zero-point correction on or off. If switched on (factory setting), the zero point is automatically corrected for drift or contamination of the weighing pan. The following settings are available: Auto Zero switched on This is the factory setting. The zero point is automatically corrected. A" on Auto Zero switched off A" oFF The zero point is not automatically corrected.
The menu 31 4.13 Preselecting the automatic shutdown When the automatic shutdown is active, the balance switches itself off automatically after a preselected time (time elapsed after the last operation). When operated from the power supply, the balance is switched to the standby mode after elapse of the shutdown time. The following settings are available: No automatic shutdown The automatic shutdown is deactivated (factory setting).
The menu 32 4.14 Selecting the switch-on mode You can set your balance so that it starts immediately from standby when a weight is placed on the pan or so that it must be switched on with the «On/Off» key and then performs a display test. The following settings are available: Quickstart* qÙ StArt This is the factory setting. The balance can be started directly from standby and is immediately ready for weighing.
The menu 33 4.16 Printing out or saving menu settings In this menu option you have the possibility to save all menu settings. You can also print out the current settings of the menu, presupposing your balance is connected to a printer. Printing out settings LiSt As soon as you save your settings and quit the menu, all settings specified in the menu will be printed out on the attached printer. With “secure 1” you can protect the menu settings against inadvertent changes.
Special applications and functions 34 5. Special applications and functions Your balance can do more than just weigh. Built-in applications and functions expand the possibilities of your balance and facilitate your daily work. The following sections will acquaint you with these applications and functions. 5.1 Piece counting Piece counting presupposes that you have preselected the function “F count” in the menu (see section 4.6). Load the empty container.
Special applications and functions 35 Now load the selected number of reference pieces. Menu C F 0/ T SG 10 0d 1/1 Cal OnOf f Then briefly press the «±» key. As long as the horizontal dashes are displayed, the balance is calculating the reference weight. Menu ------ Note If you do not press a key for 45 seconds, the balance returns to the weighing mode.
Special applications and functions 36 5.2 Percent weighing The “Percent weighing” function allows you to weigh in to a preset value (100%) and determine the deviations from this target value. Percent weighing presupposes that you have preselected the function ”F 100%” in the menu (see section 4.6.). F SEt 100 % Your balance needs a reference weight that should correspond to 100 %. Press and hold the «F» key until you are prompted to load the reference weight. long Now load the reference weight.
Special applications and functions 37 5.3 Formula weighing With the formula weighing function you can weigh and totalize individual weights (components). Your balance processes up to 255 components per formula weighing operation. In addition, you can tare up to 99 weighing containers for each formula weighing operation. If your balance is connected to a printer, the entire formula weighing operation can be recorded.
Special applications and functions 38 Add the first component to the weighing container. Menu C F 0/ T SG 08 0d 1/1 Cal OnOf f F - 1 - Net 0.0 g ----- FORMULATION -----T 1 1 Then press the «“» key briefly. The display shows “- 1 -” briefly to confirm the weighing in of the first component. After weighing in of the first component, the display is reset to zero and the balance is now ready for weighing in of the second component.
Special applications and functions 39 ----- FORMULATION -----T 1 1 2 3 100.2 g Comp. Comp. Comp. T total G If a printer is attached to your balance, a record with the net total weight of all components, the tare weight (weight of the weighing container) and the gross total weight (total weight of all components plus tare weight) is printed out. 12.0 g 2.5 g 3.3 g 100.0 g 117.8 g N total 17.
Special applications and functions 40 F n 3 Press and hold the «F» key again until the number “n” of all components weighed in so far is displayed. long Net F 0.0 g Press and hold the «F» key again until the balance switches back to the weight display. You can now weigh in additional components. long During the formula weighing operation you can always tare additional weighing containers Place the additional weighing container on the weighing pan next to weighing containers already tared.
Special applications and functions 41 5.4 Dynamic weighing of unstable weighing samples The functions “Dynamic weighing with automatic start” and “Dynamic weighing with manual start” facilitate your weighing of unstable weighing samples (e.g. animals). With this type of weighing, your balance determines the weight over a particular time period and calculates a representative mean value. Dynamic weighing presupposes that you have preselected the function “F dyn A” or “F dyn M” in the menu (see section␣ 4.
Special applications and functions 42 t ≠ 3” t ≠ 5” F By pressing the «“» key briefly you can select one of the available time intervals (1, 2, 3, 5, 10 or 20 seconds). Notes The more unstable the weighing sample, the longer the time interval which should be selected. If you do not press a key for 45 seconds, the balance quits the display without changing the inputted value. Then press the «±» key briefly to confirm the selected time interval. Menu 0.
Special applications and functions 43 The set weighing time (time interval) remains stored until it is changed or the power supply of the balance is interrupted. By briefly pressing the «“» key, you can switch between the normal weighing mode and dynamic weighing at any time. By pressing and holding the «F» key when in the dynamic weighing mode, you can recall the preselected time interval to the display and change it. 5.
Special applications and functions 44 5.6 Adjustment (calibration) with internal weight Depending on the setting selected in the menu (see section 4.4), the adjustment (calibration) can be performed with the built-in, internal weight fully automatically (FACT) or semi-automatically. Fully automatic internal adjustment (calibration) FACT Your balance is set in the factory for the fully automatic adjustment with the internal adjustment weight. You are already familiar with this setting from sections 2.
Special applications and functions 45 The following displays appear during the adjustment (calibration): Cal The internal adjustment weight is being loaded. -----Cal The internal adjustment weight is being raised. 0.0 Cal The balance is processing the adjustment results. -----The balance reports successful completion of the adjustment (calibration). CAL donE The balance automatically returns to the weighing mode. 0.2 g C Abort --BALANCE 03.02.
Special applications and functions 46 5.7 Adjustment (calibration) with external weights (VariCal) Depending on the setting selected in the menu (see section 4.4), the adjustment (calibration) can be performed with the built-in weight or with an external weight. In the factory setting, the balance is set to adjustment with the internal weight, which you are already familiar with from section 2.5.
Special applications and functions 47 Place the requested weight in the middle of the weighing pan. Menu C F 0/ T SG 17 0d 1/1 Cal OnOf f Cal ------ 0.0 g CAL donE C Abort --BALANCE 26.01.94 CALIBRATION-11:34:23 METTLER TOLEDO Balance Type: SG32000 SNR: 1105238536 Weight ID:.............. Weight: 4000 g Ext. calibration done Signature: ........................ --------- END ---------- During the adjustment, the horizontal segments are displayed.
Special applications and functions 48 5.8 Test of the balance with internal or external weight You can always test the accuracy of your balance. This test is performed either with the built-in weight or with external weights, depending on your setting in the menu (see section 4.4). Test the balance with the internal weight Make sure that the “Test of the balance with the internal weight” is selected in the menu (see section 4.4).
Special applications and functions 49 Notes You can always abort an ongoing test by pressing the «C» key briefly. C Abort ----- BALANCE TEST ----26.01.94 11:34:23 METTLER TOLEDO Balance Type: SG32000 SNR: 1105238536 Target: Actual: Diff: If the test can not be performed properly (e.g. as a result of vibrations), the balance aborts the operation and “Abort” appears in the display. Press the «C» key to clear this message and restart the test.
Special applications and functions 50 During the test, the horizontal segments are displayed. -----The balance now prompts you to remove your weight. Lift off the weight. 0 g After removal of the weight, the balance processes the results of the test. ------ tSt donE C Abort ----- BALANCE TEST ----28.01.94 15:21:17 METTLER TOLEDO Balance Type: SG32000 SNR: 1105238536 Weight ID:.............. Target: Actual: Diff: ............. 4000 g ............. External test done Signature: ......................
Further important information regarding your SG balance 51 6 Error messages Error messages in the display draw your attention to incorrect operation or that the balance could not execute a procedure properly. Error message Cause Rectification Overload Unload weighing pan. Underload Check that the weighing pan is positioned correctly. No function preselected Preselect desired function in the menu.
Further important information regarding your SG balance 52 Error message Cause Rectification Internal fault Perform in order: Switch balance off then on with the «On/Off» key. Error 9 Disconnect balance from power supply and reconnect. Adjust (calibrate) balance. If rectification not possible: Inform customer service. Wrong or missing weighing pan Mount correct weighing pan. Unload weighing pan. Adjustment (calibration) or test could not be performed properly.
Further important information regarding your SG balance 53 6.1 Preventive maintenance and care Servicing Regular servicing of your balance by an authorized service engineer ensures constant accuracy for years to come and prolongs the lifetime of the instrument. Ask your METTLER TOLEDO dealer for details of the available service options. SG balances Cleaning The balance housing and the weighing pan are made of high-grade, resistant materials.
Further important information regarding your SG balance 54 6.2 Changing the fuses Cautionary note Before changing the fuse, isolate the balance from the power supply, i.e. disconnect SG balances • Turn balance with mounted weighing pan over and rest on weighing pan. • Remove the two plastic covers (1). • Unscrew the fuse links (2) with a screwdriver in a counterclockwise direction. • Replace fuses (3) by new fuses of same rating and type: 1 A slow-blow, IEC␣ 127.
Further important information regarding your SG balance 55 6.4 LocalCAN universal interface Each SG balance is equipped with the LocalCAN universal interface. As you can attach up to five peripheral units at the same time, it offers you a high degree of flexibility in data interchange. Peripherals units (see section 7.3) from METTLER TOLEDO which have the connection cable as part of their standard equipment can be attached in a simple manner to the balance.
Technical data and optional equipment 56 7. Technical data and optional equipment 7.
Technical data and optional equipment 57 Technical data SG8001 SG16001 SG32001 SG16001 Delta Range Readability 0.1 g 0.1 g 0.1 g 0.1 g/1 g Maximum capacity 8100 g 16100 g 32100 g 3200 g/16100 g Taring range 0 ... 8100 g 0 ... 16100 g 0…32100 g 0…16100 g Repeatability (s) 0.05 g 0.05 g 0.1 g 0.05 g/0.3 g Linearity 1) 4) ±0.2 g ±0.2 g ±0.
Technical data and optional equipment 58 7.
Technical data and optional equipment 59 7.3 Optional equipment With optional equipment from the METTLER TOLEDO product range, you can enhance the functionality of your SG balance. You have the following options available: Normal paper printers LC-P45 Printer: Printer with built-in applications (calibration and adjustment records conforming to GLP, statistical evaluations, totalization functions, etc.
Technical data and optional equipment 60 Stand Stand for LC-G terminal, appropriate for S platforms, incl. cable 239268 Wall bracket Wall bracket for LC-G terminal, incl.
Appendix 61 8. Appendix 8.1 Overview of menu Weighing mode SECUrEd 1 Reset Menu OPEn “ 3 Autom. adjustm.
Appendix 62 8.2 Conversion table for weight units Unit Gram g Milligram mg Ounce oz (avdp) Troy ounce ozt Pound lb Pennyweight dwt 1g 1 1000 0.03527396 0.03215075 15.43236 0.6430149 1 mg 0.001 1 0.0000352740 0.0000321508 0.01543236 0.000643015 1 oz 28.34952 28349.52 1 0.9114585 437.500 18.22917 1 ozt 31.10347 31103.47 1.097143 1 480 20 1 lb 453.59237 453592.37 16.00000 14.583336 1 291.66663 1 dwt 1.555174 1555.174 0.05485714 0.05 24 1 1 ct/C.M. 0.
Appendix 63 8.3 SOP (Standard Operating Procedure) In the documentation of a GLP test, the SOPs represent a relatively small but none the less very important part. Practical experience has confirmed that SOPs produced in-house can be followed much better than those produced by an external, anonymous source. In what follows, you will find a brief overview of the responsibilities in regard to SOPs, as well as a check list for the production of an SOP.
Appendix 64 Check list for the production of SOPs Administrative matters Yes No Yes No 1. Use of SOP blank forms 2. Name of the inspection and test equipment 3. Date (production date of the SOP) 4. Filing identifier (code plan) for SOPs 5. Number of pages (1 of n) 6. Title 7. Date of putting into force 8. Modification information 9. Names of people (departments) responsible for implementation 10. Date and signatures: a) author(s) b) checker c) person authorized for approval 11.
Appendix 65 8.
Appendix 66 O Standard equipment On/off switching Overload Standard Operating Procedure 14 Optional equipment Standby 56, 59 6, 12, 63 14, 31, 32 Storing the settings 51 21 T P Percent weighing Piece counting Taring 36 11, 35, 36, 43, 54 Power-up mode 15 Technical data 34 Power supply 56 Test of the balance 22, 48, 49 32 Preventive maintenance Printer 9 U 53 18, 33 Printing settings Underload 33 51 Unstable weighing samples Q 24 V Quickstart 32 VariCal 22, 46 Vibr
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To protect your METTLER TOLEDO product’s future: METTLER TOLEDO Service assures the quality, measuring accuracy and preservation of value of all METTLER TOLEDO products for years to come. Please send for full details about our attractive terms of service. Thank you. *P11780369* Subject to technical changes and to the availability of the accessories supplied with the instruments. © Mettler-Toledo GmbH 1999 11780369 Printed in Switzerland 9906/2.
