A&D GP-40K - Manuals

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 ”:

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...

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...

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...

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 ...

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...

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...

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...

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 ...

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...

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...

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...

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...

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...

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...

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 ...

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...

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...

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

93 Index Keys and symbols ON/OFF key ..................................................11 SAMPLE key ...........................................11, 12 MODE key ...............................................11, 13 CAL key .........................................................11 PRINT key ...........