Page 2 - manual are subject to change for improvement without notice.
© 2006 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 instrume...
Page 3 - CONTENTS; Basic operation
1 CONTENTS Basic operation 1. INTRODUCTION ............................................................................................................................ 3 1-1 About This Manual ...............................................................................................................
Page 5 - -1 About This Manual
3 1. INTRODUCTION This manual describes how the GP 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 9 - UNPACKING THE BALANCE
7 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 10 - -2 Installing the Balance
8 Separate display type: GP-30KS/32KS/60KS/61KS/100KS 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. 2. Adjust the leveling feet to...
Page 11 - Caution
9 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 13 - -5 Display Symbols and Key Operation; Key operation; Display symbols
11 3-5 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 o...
Page 14 - -6 Smart Range Function; Precision range/standard range value
12 3-6 Smart Range Function The GP-32K, GP-32KS and GP-102K are equipped with two ranges. The precision range has a higher resolution. The standard range has normal resolution. The range is switched automatically, depending on the value displayed. Pressing the RE-ZERO key allows weighing in the prec...
Page 18 - -2 Changing the Units
16 4-2 Changing the 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 so as to fit the frequency of use in the function table. Select a unit or mode and arrange the sequence of display as follows: 1 Press and hold...
Page 21 - Counting operation; Counting mode using the ACAI function
19 Counting operation 7 Place the samples to be counted on the pan. Note Up to 50 unit masses can be stored in memory for the multiple sample. For details, refer to “11. DATA MEMORY”. Counting mode using the ACAI function The ACAI is a function that improves the accuracy of the unit mass automatical...
Page 22 - Reading the percentage
20 5-3 Percent Mode (%) 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 % (percent mode). If the percent mode can not be selected, r...
Page 23 - -5 Accumulation Function; Selecting the unit
21 5-5 Accumulation Function The accumulation function adds the weighing data and displays the total value. To use the accumulation function, set the “Accumulation function ( add )” parameter of the function table as described below. Note While the accumulation function is in use, the data memory fu...
Page 25 - RESPONSE ADJUSTMENT / SELF CHECK FUNCTION; -1 Automatic Response Adjustment / Self Check Function; Operation
23 6. RESPONSE ADJUSTMENT / SELF CHECK FUNCTION This function detects the influence on weighing that is caused by drafts and/or vibration at the place where the balance is installed and sets the response characteristic automatically. When this function is selected, the balance self-checks the perfor...
Page 26 - -2 Manual Response Adjustment
24 Notes If improper performance is found in the self check, the balance displays CH no . Contact the local A&D dealer for repair. If the automatic response adjustment fails, the balance displays CH ng . Check the ambient conditions such as breeze and vibration, also check the weigning pan. Then...
Page 27 - -1 Calibration Group; Terms; Caution on using an external weight
25 7. CALIBRATION 7-1 Calibration Group The GP series balance has the following modes as a calibration group. Calibration Automatic self calibration (calibration due to changes in temperature) Calibration using the internal mass (one-touch calibration) Calibration using an external weight Calibratio...
Page 28 - Display; -2 Automatic Self Calibration; (Calibration due to changes in temperature)
26 Display This indicator means “the balance is measuring calibration data”. Do not allow vibration or drafts to affect the balance while this indicator is displayed. 7-2 Automatic Self Calibration (Calibration due to changes in temperature) This function automatically calibrates the balance when th...
Page 29 - -3 Calibration Using the Internal mass; About the internal mass
27 7-3 Calibration Using the Internal mass (One-Touch Calibration) This function calibrates the balance using the internal mass. The only operation required is to press the CAL key. Operation 1 Plug in the AC adapter and warm up the balance for at least 30 minutes with nothing on the weighing pan. 2...
Page 30 - -4 Calibration Using an External Weight
28 7-4 Calibration Using an External Weight This function calibrates the balance using an external weight. Operation 1 Plug in 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, then release the key. 3 The b...
Page 32 - -5 Calibration Test Using an External Weight
30 7-5 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 Con...
Page 34 - -6 Correcting the Internal Mass Value
32 7-6 Correcting the Internal Mass Value The GP series balance can correct the internal mass value within the range shown below. This function corrects the internal mass value to conform to an external weight. The corrected mass value is maintained in non-volatile memory even if the AC adapter is r...
Page 36 - FUNCTION SWITCH AND INITIALIZATION; -1 Permit or Inhibit; Switches
34 8. FUNCTION SWITCH AND INITIALIZATION 8-1 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 37 - -2 Initializing the Balance
35 8-2 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 38 - -1 Structure and Sequence of the Function Table; Example; -2 Display and Keys
36 9. FUNCTION TABLE The function table reads or rewrites the parameters that are stored in the balance. These parameters are maintained in non-volatile memory, even if the AC adapter is removed. 9-1 Structure and Sequence of the Function Table The function table menu consists of two layers. The fir...
Page 39 - -3 Details of the Function Table
Page 42 - -4 Description of the Class “Environment, Display”; Stability band width (; Hold
40 9-4 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 displa...
Page 43 - trc; Display refresh rate (; pnt; Capacity indicator (; Accumulation function (
41 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 GP series balance, indicates the smallest display...
Page 44 - -5 Description of the Item “Data output mode”; Key mode
42 9-5 Description of the Item “Data output mode” The parameter setting of “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 PRIN...
Page 45 - Interval memory mode; -6 Description of the Item “Data format”; A&D standard format
43 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 Optional setting dout 5-td1 , 2 , or 3 Adds the time and date. Example “For periodical w...
Page 47 - Description of the Data Format Added to the Weighing Data
45 9-7 Description of the Data Format Added to the Weighing Data ID number dout 5-id 1 The number to identify a specific balance. This format consists of seven characters excluding the terminator. Data number dout d-no 1 This format outputs the data number just before the data is transmitted using t...
Page 48 - -8 Data Format Examples
Page 50 - -9 Clock and Calendar Function
48 9-9 Clock and Calendar Function The balance is equipped with a clock and calendar function. When the “GLP output ( info )” parameter is set to “ 1 ” or “ 2 ” and the “Time/Date output ( 5-td )” parameter is set to “ 1 ”, “ 2 ” or “ 3 ”, the time and date are added to the output data. Set or confi...
Page 52 - -10 Comparator Function; Setting example 1
50 9-10 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 53 - Setting example 2
51 Weighing input mode Press the RE-ZERO key. The balance displays 0.0 g. Place a sample, with a mass that corresponds to the upper limit value, on the pan. Press the PRINT key to store the upper limit value. Remove the sample. The balance displays Cp lo . 9 With Cp lo displayed, press the PRINT key...
Page 54 - -11 Adding the Comparison Results; Selecting a unit
52 9 With Cp lnt displayed, press the PRINT key. The current setting of the tolerance value is displayed with all the digits blinking. When the current setting is not to be changed, press the PRINT or CAL key to proceed to step10. When the current setting is to be changed, press the RE-ZERO key. The...
Page 55 - Setting the function table; Setting the comparator values
53 Setting the function table 2 Press and hold the SAMPLE key until ba5fnc of the function table is displayed, then release the key. 3 Press the SAMPLE key several times to display Cp fnc . 4 Press the PRINT key. 5 Press the SAMPLE key several times to display Cp-b 0 . 6 Press the RE-ZERO key to dis...
Page 56 - ID NUMBER AND GLP REPORT; 0-1 Setting the ID Number; Display character set
54 10. 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...
Page 57 - Calibration report using the internal mass
55 10-2 GLP Report Set the following parameters to output the report. To print the report, set the “GLP output ( info )” parameter to “ 1 ” and use MODE 3 of the AD-8121B. For details on using the printer, refer to “15-1 Connection to the AD-8121B Printer”. To output the report to a personal compute...
Page 58 - Calibration report using an external weight; Calibration test report using an external weight
56 Calibration report using an external weight When the setting is “ info 1 ”: When the setting is “ info 2 ”: Calibration test report using an external weight (Calibration test does not perform calibration.) When the setting is “ info 1 ”: When the setting is “ info 2 ”:
Page 59 - Title block and end block
57 Title block and end block When weight values are recorded as GLP data, a “Title block” is inserted at the beginning and an “End block” is inserted 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 m...
Page 60 - 1-1 Notes on Using Data Memory; Releasing “
58 11. DATA MEMORY Data memory is a function to store weighing data, calibration data and unit mass in memory. Of the data in memory, the balance can only display the weighing data. The weighing data and calibration data in memory are available for outputting at one time to a printer or personal com...
Page 61 - 1-2 Memory for Weighing Data; Storing the weighing data
59 11-2 Memory for Weighing Data The data memory function can store 200 sets of weighing data (100 set if time and date are added). 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 balan...
Page 64 - 1-3 Memory for Calibration and Calibration Test Data; Storing the calibration and calibration test data
62 11-3 Memory for Calibration and Calibration Test Data Calibration data (when and how it is performed) and calibration test data can be stored in memory. All the data in memory is available to be output at one time to a printer or personal computer. Up to 50 data sets of the latest calibration or ...
Page 65 - 1-4 Memory for Unit Mass in the Counting Mode; Storing the unit mass
63 11-4 Memory for Unit Mass in the Counting Mode The data memory function can store 50 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 50 sets, “ p01 ” is the memory function for the standard counting mode. The uni...
Page 66 - Recalling the unit mass
64 Weighing input mode In the weighing input mode, the specified number of samples is placed on the pan to store the unit mass. Re-storing the unit mass or performing Automatic Counting Accuracy Improvement (ACAI) on the re-stored unit mass is possible. Follow the procedure described in “5-2 Countin...
Page 67 - 1-5 Memory for Comparator Settings; Storing the upper and lower limit values
65 11-5 Memory for Comparator Settings The data memory function can store 20 sets of upper and lower limit values for the comparator mode. The reference value or tolerance value for the comparator mode can not be stored in memory. The upper and lower limit values in memory can be recalled easily usi...
Page 69 - Recalling the upper and lower limit values (Quick selection mode); 1-6 Memory for Tare Value
67 Recalling the upper and lower limit values (Quick selection mode) The procedure below describes an easy way to recall the upper and lower limit values to be used for weighing. When the recalled upper and lower limit values are to be changed, refer to “Storing the upper and lower limit values”. 1 ...
Page 70 - Storing the tare value
68 Storing the tare value To store a new tare value: Recall the stored tare value to be changed (“ t01 ” to “ t20 ”). Then, change the recalled tare value using the digital input mode or the weighing input mode, and store the new value. Notes When the RE-ZERO key is pressed with nothing placed on th...
Page 72 - Recalling the tare value (Quick selection mode); Canceling the tare value data
70 Recalling the tare value (Quick selection mode) The procedure below describes an easy way to recall the tare value to be used for weighing. When the recalled tare value is to be changed, refer to “Storing the tare value”. 1 Set the “Data memory ( data )” parameter to “ 5 ”. 2 Press the MODE key t...
Page 74 - 1-8 Data Memory: Confirmation and Storage Mode
72 11-8 Data Memory: Confirmation and Storage Mode The confirmation and storage mode can change and store the recalled data. Of the three types of memory data listed below, one may be selected in the function table, and is available for changes using this mode. Unit mass in the counting mode Compara...
Page 76 - DENSITY MEASUREMENT; Formula to obtain the density; Measuring the density
74 13. DENSITY MEASUREMENT The GP 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 80 - External contact input
78 External contact input By connecting pin 18 to pin 7, or pin 19 to pin 7, for more than 100 ms, the same operation as performed by pressing the RE-ZERO key or the PRINT key, will be performed. Use of example The external input connector (AX-HDB-25P/CTF) and the foot switch (AX-SW128) are sold sep...
Page 81 - CONNECTION TO PERIPHERAL EQUIPMENT; 5-2 Connection to a Computer
79 15. CONNECTION TO PERIPHERAL EQUIPMENT 15-1 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 82 - 5-4 Using the WinCT software, the balance can do the following:
80 15-3 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 software has two communication methods: “RsCom” and “RsKey”. For details on ...
Page 85 - 8-1 Checking the Balance Performance and Environment; Checking that the balance performs properly
83 17. MAINTENANCE Do not disassemble the balance. Contact the local A&D dealer if the balance needs service or repair. Use the original packing material for transportation. Do not use organic solvents to clean the balance. Clean the balance with a lint free cloth that is moistened with warm wat...
Page 88 - Other symbol; 8-3 Asking For Repair
86 Display Error code Description Memory type error Type of memory set in the function table and type of data stored are different. For details, refer to “11. DATA MEMORY”. EC, E00 Communications error A protocol error occurred in communications. Confirm the format, baud rate and parity. EC, E01 Und...
Page 91 - EXTERNAL DIMENSIONS
89 20. EXTERNAL DIMENSIONS Standard Type: GP-12K/20K/30K/32K/40K/60K/61K/100K/102K Note The size in parentheses is for the GP-100K/102K Unit: mm
Page 95 - Index; Keys and symbols
93 Index Keys and symbols ON/OFF key ..................................................11 SAMPLE key ...........................................11, 12 MODE key ...............................................11, 13 CAL key .........................................................11 PRINT key ...........
Page 97 - MEMO
