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A&D GF-1000 Instruction Manual

Manual is about: GF Series Precision balance

Summary of GF-1000

  • Page 1

    Gf series gf-200/gf-300/gf-400/gf-600/gf-800/gf-1000 gf-1200/gf-2000/gf-3000/gf-4000/gf-6100 gf-6000/gf-8000 precision balance instruction manual 1wmpd4000209c.

  • Page 2

    ? 2008 a&d company ltd. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, or translated into any language in any form by any means without the written permission of a&d company ltd. The contents of this manual and the specifications of the instrument cover...

  • Page 3: Contents

    1 contents b a s i c o p e r a t i o n 1. Introduction .............................................................................................................................3 1-1 about this manual....................................................................................................

  • Page 4

    2 10-5 description of the item “data output mode” ................................................................................... 36 10-6 description of the item “data format” ............................................................................................. 37 10-7 description of the...

  • Page 5: 1. Introduction

    3 1. Introduction this manual describes how the gf series balance works and how to get the most out of it in terms of performance. Read this manual thoroughly before using the balance and keep it at hand for future reference. 1-1 about this manual this manual consists of the following five parts: ba...

  • Page 6: 1-3 Compliance

    4 1-3 compliance compliance with fcc rules please note that this device generates, uses and can radiate radio frequency energy. This device has been tested and has been found to comply with the limits of a class a computing device pursuant to subpart j of part 15 of fcc rules. These rules are design...

  • Page 7

    5.

  • Page 8: 2.  Unpacking The Balance

    6 2. Unpacking the balance 2-1 unpacking the balance is a precision instrument. Unpack the balance carefully. Keep the packing material to be used for transporting the balance in the future. The packing contents depend on the balance model. See the illustrations to confirm that everything is contain...

  • Page 9

    7 gf-1200/2000/3000/4000/6100/6000/8000 note please confirm that the ac adapter type is correct for your local voltage and receptacle type. 2-2 installing the balance install the balance as follows: 1. Refer to “3. Precautions” for installing the balance. Place the balance on a solid weighing table....

  • Page 10: 3. Precautions

    8 3. Precautions to get the optimum performance from the balance and acquire accurate weighing data, note the following: 3-1 before use install the balance in an environment where the temperature and humidity are not excessive. The best operating temperature is about 20°c / 68°f at about 50% relativ...

  • Page 11: 3-2 During Use

    9 3-2 during use discharge static electricity from the material to be weighed (hereinafter referred to as sample). When a sample could have a static charge, the weighing data is influenced. Ground the balance and try the following: eliminate the static electricity by ad-1683 as an accessory. Or try ...

  • Page 12: 3-3 After Use

    10 3-3 after use avoid mechanical shock to the balance. Do not disassemble the balance. Contact the local a&d dealer if the balance needs service or repair. Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that is moistened with warm water and a mild deterge...

  • Page 13

    11 4. Display symbols and key operation key operation key operation affects how the balance functions. The basic key operations are: “press and release the key immediately” or “press the key” = normal key operation during measurement “press and hold the key” display symbols each key, when pressed or...

  • Page 14: 5. Weighing Units

    12 5. Weighing units 5-1 units with the gf series balance, the following weighing units and weighing modes are available: a unit or mode can be selected and stored in the function table as described on page 15 if a weighing mode (or unit of weight) has been turned off, that mode or unit will be miss...

  • Page 15

    13 the tables below indicate the weighing capacity and the minimum display for each unit, depending on the balance model. Capacity unit gf-200 gf-300 gf-400 gf-600 gf-800 gf-1000 minimum display gram 210 310 410 610 810 1100 0.001 ounce (avoir) 7.40 10.93 14.46 21.51 28.57 38.80 0.00005 pound 0.462 ...

  • Page 16

    14 capacity unit gf-6000 gf-8000 minimum display gram 6100 8100 0.1 ounce (avoir) 215 285 0.005 pound 13.4 17.8 0.0005 pound/ounce 13lb 7.17oz 17lb 13.72oz 0.01oz troy ounce 196 260 0.005 metric carat 30500 40500 0.5 momme 1626 2160 0.05 pennyweight 3922 5208 0.1 grain (uk) 94136 125002 2 tael (hk g...

  • Page 17: 5-2 Storing Units

    15 5-2 storing units the units or modes can be selected and stored in the function table. The sequence of displaying the units or modes can be arranged to fit the frequency of use. The units stored are maintained in non-volatile memory, even if the ac adapter is removed. Select a unit or mode and ar...

  • Page 18

    16 unit setting example the example below sets the units in the order with g (gram) as the first unit followed by pc (counting mode). 1 press and hold the sample key until ba5fnc of the function table is displayed, then release the key. 2 press the sample key several times to display 1 unit . 3 pres...

  • Page 19: 6. Weighing

    17 6. Weighing 6-1 basic operation (gram mode) 1 place a container on the weighing pan, if necessary. Press the re-zero key to cancel the weight (tare). The balance displays 0.00 g. (the decimal point position depends on the balance model.) 2 place a sample on the pan or in the container. 3 wait for...

  • Page 20: 6-2  Counting Mode (Pc)

    18 6-2 counting mode (pc) this is the mode to determine the number of objects in a sample based on the standard sample unit mass. Unit mass means the mass of one sample. The smaller the variables in each sample unit mass is, the more accurate the counting will be. The gf series balance is equipped w...

  • Page 21

    19 notes if the balance judges that the mass of the samples is too light and is not adequate to be used as the unit mass, it displays lo . If the balance judges that the mass of the samples is too light to aquire accurate weighing, it displays an error requiring the addition of more samples to the s...

  • Page 22: 6-3  Percent Mode (Pct)

    20 6-3 percent mode (pct) this is the mode to display the weight value in percentage compared to a 100% reference mass and is used for target weighing or checking the sample variable. Selecting the percent mode 1 press the mode key to select pct (percent mode). If the percent mode can not be selecte...

  • Page 23

    21 7. Response adjustment / self check function 7-1 manual response adjustment the function has three rates as follows: changing the response rate changes the display refresh rate. Indicator parameter response characteristic display refresh rate fast cond 0 mid. Cond 1 slow cond 2 fast response, sen...

  • Page 24: 7-2  Self Check Function

    22 7-2 self check function this function self-checks the internal performance of the balance. Operation 1 press and hold the mode key until response is displayed, then release the key. 2 the balance automatically starts to check its internal performance 3 after self-check, the balance displays the c...

  • Page 25: 8. Calibration

    23 8. Calibration 8-1 calibration modes the gf series balance has the following two modes. Calibration using an external weight calibration test using an external weight (calibration test does not perform calibration.) terms the following terms are defined as follows: external weight = a weight that...

  • Page 26

    24 8-2 calibration using an external weight this function calibrates the balance using an external weight. Operation 1 connect the ac adapter and warm up the balance for at least 30 minutes with nothing on the pan. 2 press and hold the cal key until calout is displayed, and then release the key. 3 t...

  • Page 27

    25 5 confirm that there is nothing on the pan and press the print key. The balance measures the zero point. Do not allow vibration or drafts to affect the balance. The balance displays the calibration weight value. 6 place the displayed calibration weight on the pan and press the print key. The bala...

  • Page 28

    26 8-3 calibration test using an external weight this function tests the balance weighing accuracy using an external mass and outputs the result. This is available only when the “glp output (info)” parameter is set to “1” or “2”. (calibration test does not perform calibration.) operation 1 connect t...

  • Page 29

    27 5 confirm that there is nothing on the pan and press the print key. The balance measures the zero point and displays the measured value. Do not allow vibration or drafts to affect the balance. The balance displays the target weight value. 6 place the displayed target weight on the pan and press t...

  • Page 30: 9-1  Permit Or Inhibit

    28 9. Function switch and initialization 9-1 permit or inhibit the balance stores parameters that must not be changed unintentionally (e.G. Calibration data for accurate weighing, data for adapting to the operating environment, control data for the rs-232c interface). There are five switches for the...

  • Page 31

    29 9-2 initializing the balance this function returns the following parameters to factory settings. Calibration data function table the sample unit mass value (counting mode), 100% reference mass value (percent mode) the data that is stored in the balance using the data memory function external cali...

  • Page 32: 10. Function Table

    30 10. Function table the function table reads or rewrites the parameters that are stored in the balance. These parameters are stored in non-volatile memory, and are maintained even if the ac adapter is removed.. 10-1 structure and sequence of the function table the function table menu consists of t...

  • Page 33

    31 10-3 details of the function table environment display ba5fnc class item param- eter description factory setting note: "digit" is a unit of miminum weighing value. No comparison comparison, excluding "near zero" when stable value or overloaded comparison, including "near zero" when stable value o...

  • Page 34

    32 factory setting data output data output mode auto print polarity auto print difference data memory interval time data number output id number output data output pause auto feed glp output zero after output dout prt ap-p ap-b data int d-no 5-id pu5e at-f info ar-d 1 2 3 0 1 2 0 1 2 0 1 2 0 1 2 3 4...

  • Page 35

    33 caution the balance may not transmit the data completely at the specified refresh rate, depending on the baud rate or data added to the weighing data such as id number. Class item p aram- eter description serial interface density function programmable-unit (multi-unit) unit id number setting baud...

  • Page 36

    34 10-4 description of the class “environment, display” condition ( cond ) cond 0 this parameter is for sensitive response to the fluctuation of a weight value. Used for powder target weighing, weighing a very light sample or when quick response weighing is required. After setting, the balance displ...

  • Page 37

    35 zero tracking ( trc ) this function tracks zero point drift caused by changes in the environment and stabilizes the zero point. When the weighing data is only a few digits, turn the function off for accurate weighing. Note digit, when used for the gf series balance, indicates a unit of minimum we...

  • Page 38

    36 10-5 description of the item “data output mode” the parameter setting of the “data output mode ( prt )” applies to the performance when the “data memory ( data )” parameter is set to “2” (to store the weighing data) and when the data is transmitted using the rs-232c interface. Key mode when the p...

  • Page 39

    37 interval memory mode the weighing data is periodically stored in memory. Required setting dout prt 3 interval memory mode dout data 2 data memory function is used. Stores weighing data. Dout int interval time example “for periodical weighing without a computer command and to output all of the dat...

  • Page 40

    38 kf format 5if type 2 this is the karl-fischer moisture meter format and is used when the peripheral equipment can only communicate using this format. Z this format consists of fourteen characters excluding the terminator. Z this format has no header characters. Z the polarity sign is placed befor...

  • Page 41: 10-7

    39 csv format 5if type 5 separates the data of a&d standard format and the unit by a comma (,). Outputs the unit even when the data is overloaded. When the id number and data number are added, outputs the id number, data number and weighing data in this order and separates each item by a comma and t...

  • Page 42: 10-8  Data Format Examples

    40 10-8 data format examples cr stable a&d dp kf mt* nu lf positive error overload cr lf cr lf cr lf a&d dp kf mt nu h unstable cr lf cr lf a&d dp kf mt nu cr lf cr lf negative error overload cr a&d dp kf mt nu l lf cr lf u s , - 0 0 1 8 3 . 9 6 g lf cr u s - 1 8 3 . 9 6 g - 1 8 3 . 9 6 - 0 0 1 8 3 ...

  • Page 43

    41 note when “pound ounce” is selected, the data is output with the unit of ounce (oz). % % % % g counting mode precent mode ounce (avoir) pound pound ounce troy ounce metric carat momme pennyweight grain tael tael (hk, jewelry) tael (taiwan) tael (china) tola (india) messghal density multi g g g g ...

  • Page 44: 10-9 Comparator Function

    42 10-9 comparator function the results of the comparison are indicated by hi ok lo on the display. Operating conditions: no comparison comparison when the weighing data is stable or overloaded, excluding “near zero” comparison when the weighing data is stable or overloaded, including “near zero” co...

  • Page 45

    43 9 with cp lnt displayed, press the print key. The current setting is displayed. When the current setting is to be changed, change the setting using the following keys. Enter the tolerance value, in percentage to the reference value, as 100%. Sample key to select the digit to change the value. Re-...

  • Page 46: 11-2 Glp Report

    44 11. Id number and glp report the id number is used to identify the balance when good laboratory practice (glp) is used. The id number is maintained in non-volatile memory even if the ac adapter is removed. The glp output format is selected at “glp output (info)” of the function table and can be o...

  • Page 47

    45 a & d mo del gf -2 00 0 s/ n 012 34 56 7 id ab cd ef g da te ti me ca lib ra ted( ex t. ) cal.Weight +2 000. 00 g si gna tu re - - -- - - - - - - - -- - - - ad-8121 format general data format manufacturer model serial number id number date time calibration type calibration weight signature cr lf ...

  • Page 48

    46 title block and end block when a weight value is recorded as the glp data, “title block” and “end block” are inserted at the beginning and at the end of a group of weight values, in the glp report. Note to output the report to an ad-8121b , use mode 3 of the ad-8121b. Caution if the data memory f...

  • Page 49: 12. Data Memory

    47 12. Data memory data memory is a function to store weighing data and unit mass in memory. Of the data in memory, the balance can only display the weighing data. The weighing data in memory is available for outputting at one time to a printer or personal computer. One of the following data set can...

  • Page 50

    48 12-2 memory for weighing data the data memory function can store 40 sets of weighing data. Even if the ac adapter is removed, the data is maintained in non-volatile memory. It is not necessary that the printer or computer be continually connected to the balance, because the balance stores the wei...

  • Page 51

    49 the following commands can not be used during data storage. Q query command for weighing data. S, e sc p query command for stable weighing data. Si query command for weighing data. Sir query command for continuous weighing data. E sc : 1bh in ascii code setting the function table parameter settin...

  • Page 52

    50 recalling the memory data confirm that the “data memory ( data )” parameter is set to “2”. 1 press and hold the print key until recall is displayed. 2 press the print key to enter the memory recall mode. Recall the data in memory using the following keys re-zero key to proceed to the next data se...

  • Page 53

    51 12-3 memory for unit mass in the counting mode the data memory function can store 20 sets of unit mass for the counting mode. Even if the ac adapter is removed, the data is maintained in non-volatile memory. Among the 20 sets, “p01” is the memory function for the standard counting mode. The unit ...

  • Page 54: 13. Underhook

    52 13. Underhook the underhook can be used for weighing large samples, magnetic materials or for measuring density. The built-in underhook is revealed by removing the plastic cap on the bottom of the balance. Use the underhook as shown below. Caution do not apply excessive force to the underhook. Wh...

  • Page 55: 14. Programmable-Unit

    53 14. Programmable-unit this is a programmable unit conversion function. It multiplies the weighing data in grams by an arbitrary coefficient set in the function table and displays the result. The coefficient must be within the range between the minimum and maximum shown below. If the coefficient s...

  • Page 56: 15. Density Measurement

    54 15. Density measurement the gf series balance is equipped with a density mode. It calculates the density of a solid using the weight of a sample in air and the weight in liquid. The density mode was not selected for use when the balance was shipped from the factory. To use the mode, change the fu...

  • Page 57

    55 the relation between the water temperature and density is shown below. Entering the density directly ( ldin 1 ) in the density mode, press and hold the mode key until the density currently set (unit : g / cm 3 , factory setting : 1.000g / cm 3 ) is displayed. Use the following keys to change the ...

  • Page 58

    56 measuring procedure 1 confirm that the balance is in the mode to measure the weight of the sample in air. (“g” displayed and processing indicator blinking) 2 confirm that the balance indicates zero. If it does not indicate zero, press the re-zero to reset the displayed value to zero. 3 place the ...

  • Page 59: 16.

    57 16. Rs-232c serial interface / external input transmission system : eia rs-232c transmission form : asynchronous, bi-directional, half duplex data format : baud rate : 600, 1200, 2400, 4800, 9600 bps data bits : 7 or 8 bits parity : even, odd (data bits 7 bits) none (data bits 8 bits) stop bit : ...

  • Page 60

    58 external input pin 18 and pin 19 perform the same function as pressing the print and re-zero keys respectively by connecting each pin to pin 7 for at least 100 ms. Use of example the external input connector (ax-hdb-25p/ctf) and the foot switch (ax-sw128) are sold separately..

  • Page 61

    59 17. Connection to peripheral equipment 17-1 connection to the ad-8121b printer set the following parameters to use the ad-8121b printer. Function setting description dout prt 0-3 selects a print mode. Dout ap-p 0-2 selects the polarity for the auto print mode. Dout ap-b 0-2 selects the auto print...

  • Page 62

    60 17-3 using windows communication tools (winct) when windows is used as an operating system in a personal computer, the provided winct software can be used to transmit the weighing data to the personal computer. The winct has two communication methods: “rscom” and “rskey”. For details on winct, re...

  • Page 63

    61 5 using the gf series balance memory function the weighing data, instead of outputting it immediately to an external device, can be stored in the balance’s memory. Later, all of the weighing data stored can be output to a personal computer at one time. 6 using a personal computer as an external i...

  • Page 64: 18. Commands

    62 18. Commands 18-1 command list commands to query weighing data c cancels the s or sir command. Q requests the weighing data immediately. S requests the weighing data when stabilized. Si requests the weighing data immediately. Sir requests the weighing data continuously. E sc p requests the weighi...

  • Page 65

    63 commands to control the comparator function hi: ∗∗∗. ∗∗ g sets the upper limit value. E.G.,hi:+2.34 g (to set the upper limit value to 2.34 g: represents a space.) lo: ∗∗∗. ∗∗ g sets the lower limit value. E.G.,lo:+1.23 g (to set the lower limit value to 1.23 g: represents a space.) ?Hi outputs t...

  • Page 66: 18-3 Command Examples

    64 18-3 command examples on command r command standby mode zero display all segments are displayed personal computer time balance on command n cr lf command received command completed akcr lf akcr lf o all segments weighing mode zero display in process personal computer time balance r command r cr l...

  • Page 67

    65 error code weighing mode (unstable) weighing mode personal computer time balance r command r cr lf akcr lf akcr lf cr 1 lf 1 e , c e when the cal command is received, the balance returns to the weighing mode error code cal command a c l cr lf in process command received command completed when the...

  • Page 68

    66 weighing with a tare sets the display to zero zero display personal computer time balance r command r cr lf akcr lf akcr lf place a container zero display tr command r cr lf akcr lf akcr lf t tares Ｐ Ｔ ， ＋ ０ ０ １ ２ ６ ． ８ ７ ｇ Ｓ Ｔ ， ＋ ０ ０ １ ０ ０ ． ０ ０ ｇ cr lf s command r ?Pt command p ? T cr lf in pr...

  • Page 69

    67 setting a negative target value and filling with a sample until the display becomes zero 18-4 control using cts and rts depending on the “ct5” parameter of “serial interface ( 5if )”, the balance performs as follows: ct5 0 regardless of whether the balance can receive a command or not, the balanc...

  • Page 70: 19. Maintenance

    68 19. Maintenance do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that is moistened with warm water and a mild detergent. Do not disassemble the balance. Contact the local a&d dealer if the balance needs service or repair. Use the original packing material...

  • Page 71: 20-2 Error Codes

    69 is the sample placed in the center of the weighing pan? Has the balance been calibrated using an external mass? Has the balance been warmed up for 30 minutes before weighing? Sample and container has the sample absorbed or lost moisture due to the ambient conditions such as temperature and humidi...

  • Page 72

    70 display error code description weighing pan error the weight value is too light. Confirm that the weighing pan is properly installed and calibrate the balance. Sample mass error the balance can not store the sample for the counting mode or for the percent mode because it is too light. Use a large...

  • Page 73: 20-3  Asking For Repair

    71 display error code description ec, e03 timeout error if the timeout parameter is set to “t-up1”, the balance did not receive the next character of a command within the time limit of one second. Confirm the communication. Ec, e04 excess characters error the balance received excessive characters in...

  • Page 74: 21. Specifications

    72 21. Specifications gf-200 gf-300 gf-400 gf-600 gf-800 gf-1000 weighing capacity 210 g 310 g 410 g 610 g 810 g 1100 g maximum display 210.084 g 310.084 g 410.084 g 610.084 g 810.084 g 1100.084 g minimum weighing value (1 digit) 0.001 g repeatability (standard deviation) 0.001 g linearity ±0.002 g ...

  • Page 75

    73 gf-1200 gf-2000 gf-3000 gf-4000 gf-6100 gf-6000 gf-8000 weighing capacity 1210 g 2100 g 3100 g 4100 g 6100 g 6100 g 8100 g maximum display 1210.84 g 2100.84 g 3100.84 g 4100.84 g 6100.84 g 6108.4 g 8108.4 g minimum weighing value (1 digit) 0.01 g 0.1 g repeatability (standard deviation) 0.01 g 0....

  • Page 76: 22. Options

    74 22. Options glass breeze break glass breeze break animal weighing bowl density determination (gx-10) (gx-11) kit (gx-12) kit (gx-13) for gf-200/300/400 for gf-1200/2000/3000 for all models except gf-200 for gf-200/300/400 600/800/1000 4000/6100/6000 the mass of the animal weighing 600/800/1000 80...

  • Page 77

    75 ad-8920 remote display connected to the gf series using the rs-232c interface to display the weighing data away from the balance.. Ad-8922 remote controller connected to the gf series using the rs-232c interface to display the weighing data and to remotely control the balance. Ax-sw128 foot switc...

  • Page 78

    76 ad-1683 dc static eliminator used to minimize weighing errors due to static electricity on the material. Ad-1684 electrostatic field meter this option measures the amount of the static charge on the sample, tare or peripheral equipment and displays the result. If those are found to be charged, di...

  • Page 79: 23. External Dimensions

    77 23. External dimensions.

  • Page 80: 24. Terms/index

    78 24. Terms/index terms stable value the weight data when the stabilization indicator appears. Environment ambient conditions such as vibration, drafts, temperature, static electricity and magnetic fields which affect the weighing operation. Store to save the weighing data, unit mass or calibration...

  • Page 81

    79 index keys and symbols on/off key ............................... 11, 28 sample key .............................. 11, 15 mode key ............................ 11, 12, 15 cal key ...................................... 11, 15 print key .................................. 11, 15 re-zero key............

  • Page 82

    80 mode ...................................................... 78 mt format .................................................... 38 - n - nu (numerical) format................................. 38 - o - output ...................................................... 78 100% reference mass.................