Ad-weighing GH-252 Manuel d'utilisateur

ふ Analytical Balance GH-120 GH-200 GH-300 GH-202 GH-252 1WMPD4000891C

8 3.2. During Use Note the following items to get accurate weighing data. Discharge static electricity from the weighing material. When weighin

9 Press the RE-ZERO key before each weighing to prevent possible errors. Calibrate the balance periodically so as to eliminate possible errors.

10 4. Display Symbols and Key Operation Display Key operation Press and release the key immediately" or "Click the

11 5. Weighing Units 5.1. Units All weighing units and weighing modes are as follows: A unit or mode can be selected and stored

12 The tables below indicate the weighing capacity and the minimum display for each unit, depending on the balance model. GH-252 Standard range

13 GH-300 GH-200 GH-120 Unit Capacity Minimum display Gram 320 220 120 0.0001 Milligram 320000 220000 120000 0.1 Ounce (Avoir) 11.29 7.76 4.23 0.

14 5.2. Changing the Units The units or modes can be selected and stored in the function table. The sequence of displaying these can be arranged

15 5.2.1. Unit setting example The example below sets the units in the order with g (gram) as the first unit followed by pcs (counting mode). 1

16 6. Weighing Precautions for the weighing operation Press the RE-ZERO key each time, before placing a sample on the weighing pan, to prevent p

17 6.2. Dual Range Weighing range GH-252 GH-202 Available minimum displayPrecision range 0 g to 101 g 0 g to 51 g 0.01 mg 0.1 mg 1

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18 6.3. Counting Mode (PCS) This is the mode to determine the number of objects in a sample based on the standard sample unit mass. The unit mas

19 Counting mode using the ACAI function The ACAI is a function that improves the accuracy of the unit mass automatically by increasing the number

20 Pan Container 100% mass Place sample Percentage 6.4. Percent Mode (%) The percent mode displays the weight value in percentage compared to a

21 7. Response Adjustment This function stabilizes the weight value, reducing the influence on weighing that is caused by drafts and/or vibration

22 7.2. Manual Response Adjustment 1 Press and hold the MODE key until RESPONSE is displayed, then release the key. Press the MODE key a

23 8. Calibration 8.1. Calibration Group Calibration Automatic self calibration (Calibration due to changes in temperature) Calibration using

24 8.2. Automatic Self Calibration Automatic self calibration due to changes in temperature This function automatically calibrates the balance w

25 8.4. Calibration Test Using the Internal Mass This function tests the balance accuracy using the internal mass. (Balance is not calibrated) W

26 8.5. Calibration Using an External Weight This function calibrates the balance using an external weight. 1 Connect the AC adapter and war

27 8.6. Calibration Test Using an External Weight This function tests the weighing accuracy using an external weight. Calibration test report

1 Contents Basic Operation 1. Introduction...

28 8.7. Correcting the Internal Mass Value The balance can correct the internal mass value within the range shown below. This function corrects

29 9. Function Switch and Initialization 9.1. Permit or Inhibit The balance stores parameters that must not be changed unintentionally (Example

30 9.2. Initializing the Balance This function returns the following parameters to factory settings. Calibration data Function table The sam

31 10. Function Table The function table reads or rewrites the parameters that are stored in the balance. These parameters are maintained in non-

32 Setting procedure 1 Press and hold the RANGE key until ba5fnc of the function table is displayed in the weighing mode, then release the

33 Setting example This example sets "Stores weighing data" for "Data memory" and "1 minute" for "Interval ti

34 10.2. Details of the Function Table Class Item and Parameter Description 0 Fast response, sensitive value FAST 1 MID.Cond Condition 2 Slow r

35 Class Item and Parameter Description 0 Every measurement 1 2 seconds 2 5 seconds 3 10 seconds 4 30 seconds 5 1 minute 6 2 minute 7 5 mi

36 0 No limit t-Up Timeout 1 1 second Selects the wait time to receive a command. 0 No output erCd AK, Error code 1 Output AK: ASCII code 06h

37 10.3. Description of the Class "Environment, Display" Condition ( Cond ) Cond 0 This parameter is for sensitive response to the fluct

2 10.6. Data Format Examples ... 42 10.7. Clock and Cale

38 10.4. Description of the Item "Data Output Mode" The parameter setting of "Data output mode (prt)" applies to the performan

39 Interval memory mode The weighing data is periodically stored in memory. Example For periodical weighing without a personal computer comma

40 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

41 LAB-0123CRLF2004/07/01CRLFCRLF12:34:56CSV format 5if type 5 This format separates the data of A&D standard format and the unit by a comma

42 10.6. Data Format Examples Stable Unstable Overload Positive error Overload Negative error Space, ASCII 20h Carria

43 Units A&D D.P. KF MT g mg Counting mode Precent mode Ounce (Avoir) Troy Ounce Metric Carat Momme Pennyweight Grain Tael (HK general, Singapo

44 10.7. Clock and Calendar Function The balance is equipped with a clock and calendar function. When the "GLP output (info)" parameter

45 Setting the date 7 Set the date using the following keys. RANGE key...The key to select the digits to change the value. The selec

46 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

47 11.2. GLP Report Set the following parameters to output the report. Refer to "15.2. Connection to peripheral equipment" for conn

3 1. Introduction This manual describes how the balances of GH series work and how to get the most out of them in terms of performance. Read this

48 Calibration test report using an internal mass Note Calibration test does not perform calibration. Key operation 1 Press and hold the CAL k

49 Calibration report using an external weight Key operation 1 Press and hold the CAL key to display Cal out and release the key. 2 Cal

50 Calibration test report using an external weight Note Calibration test does not perform calibration. Key operation 1 Press and hold the CAL

51 -----------A-&-D MODEL-----GH-300 S/N-----01234567 ID------LAB-0123 DATE--2004/07/01 START TIME----12:34:56 WT--+123.4567--g WT--+123.4612-

52 12. Data Memory Data memory is a function to store weighing data and calibration data in memory. The data stored in memory are available for o

53 12.2. Data Memory for Weighing Data The balance can store 200 sets of weighing data in memory (if time and date are added, the balance can sto

54 Automatic self calibration can not be used while the interval memory mode is active. The following commands can not be used during data stora

55 Recalling the memory data Confirm that the "Data memory (data)" parameter is set to "1". 1 Press and hold the PRINT key

56 12.3. Data Memory for Calibration and Calibration Test Calibration data (when and how it is performed) and calibration test data can be stored

57 13. Underhook The underhook can be used for magnetic materials or density measurement. The built-in underhook is revealed by removing the cap

4 1.2. Features Automatic self calibration, using the internal mass, adapting to changes in temperature. Response adjustment adapting to draft

58 14. Density Measurement The balance is equipped with a density mode. It calculates the density of a solid using the mass value of a sample in

59 Entering the density of a liquid Two ways to set the density of a liquid are available in the function table, "Liquid density input (ldin)

60 Measuring the density Note If the liquid temperature or the type of liquid is changed during measurement, input again the value of the liquid de

61 15. Standard Input and Output Interface 15.1. RS-232C Interface The balance is a DCE device. Connect the balance to a personal computer (DTE)

62 1 2 3 4MODEON1 2 3 4MODEON 15.2. Connection to Peripheral Equipment Connection to an AD-8121B printer Preset the following parameters to

63 Connection to a computer and the use of WinCT The balance is of the DCE type (Data Communication Equipment), which can be connected to a person

64 15.3. Commands 15.3.1. Command List Note A command has a terminator added, that is specified using "5if Crlf" of the function table,

65 15.3.2. Acknowledge Code and Error Codes When the "Serial interface function (5if)" parameter is set to "erCd 1", the bala

66 15.3.5. Command Examples This example uses the "erCd 1" of "5if" so that the <AK> (06h) code is output. ON command

67 CAL command (Calibration with internal mass) Computer Time Balance CAL command Zero display Command received Command completed Zero displ

5

68 Weighing with a tare This example uses "erCd 1" of "5if" so that the <AK> (06h) code is output. Computer Time Balan

69 Setting a negative target value and filling with a sample until the display becomes zero This example uses "erCd 1" of "5if"

70 16. Maintenance 16.1. Treatment of the Balance Clean the balance with a lint free cloth that is moistened with warm water and a mild detergent

71 Display Error code Description Sample mass error The balance can not store the sample for the counting mode or for the percent mode because it

72 Display Error code Description EC,E00 Communications error A protocol error occurred in communications. Confirm the format, baud rate and pari

73 16.4. Checking the Balance Performance and Environment The balance is a precision instrument. When the operating environment or the operating

74 17. Specifications GH-120 GH-200 GH-300 GH-202 GH-252 220 g 250 g Weighing capacity 120 g 220 g 320 g 51 g 101 g 220.0084 g 250.0084 gMax

75 17.1. External Dimensions Unit: mm

76 17.2. Options and Peripheral Equipment GH-02 USB interface The interface to connect a balance to a personal computer, and is used to transm

77 AD-1653 Density Determination Kit Example Temperature Water density 0°C 0.99984 g/cm3 10°C 0.99970 g/cm3 20°C 0.99820 g/cm3 30°C 0.99565

6 2. Unpacking the Balance Unpack the balance carefully. Keep the packing material to be used for transporting the balance in the future. See th

78 AX-T-314A-S External key Plug This plug produces the same operations as pressing the RE-ZERO and PRINT keys. It enables remote control

79 Other options Order code Name and description AD-1682 Rechargeable Battery This option allows use of the balance in a place where AC power is

80 18. Terms/Index 18.1. Terms Calibration Adjustment of the balance so that it can weigh accurately. Calibration weight A weight used for calib

81 18.2. Index % Unit of percent mode ... 20 CAL key ... 10, 31 MODE key ...

82 Numerical format ... 40 Options ... 76 out Rep

83 MEMO

84 MEMO

7 2.1. Installing the Balance Install the balance as follows: 1 Consider the section "3. Precautions " for installing your balance. Pl