Summary of EJ-120
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1wmpd4001917.
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This manual and marks all safety messages are identified by the following, “warning” or “caution”, of ansi z535.4 (american national standard institute: product safety signs and labels). The meanings are as follows: warning a potentially hazardous situation which, if not avoided, could result in dea...
Page 3: Contents
1 contents 1. Introduction .............................................................................................................3 2. Unpacking ...................................................................................................................3 3. Part names and functions........
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2 11. Maintenance ..........................................................................................................34 11-1. Notes on maintenance ...............................................................................................................34 11-2. Error codes .................
Page 5: 1. Introduction
3 1. Introduction this manual describes how this balance works and how to get the most out of it in terms of performance. Ejseries balances have the following features: the ej series are high-resolution type electronic balances having a display resolution of 1/12,000 ~ 1/60,000. The balance has a co...
Page 6: 3. Part Names And Functions
4 3. Part names and functions turns the power on or off. Held down to enter the function setting mode. Pcs mode: enters the sample unit weight storing mode. % mode: enters the 100% weight storing mode. Clears the display to zero (combined zero and tare). Outputs the weight value to printer. Stores a...
Page 7: 4. Setting Up
5 4. Setting up 4-1. Setting up your balance 1. Place the weighing pan on the main unit as shown in “2. Unpacking”. 2. Adjust the level of the balance using the leveling feet. Use the spirit level to confirm. The bubble should be in the center of the circle. 3. Calibrate your balance before use. (se...
Page 8: 4-3. Breeze Break
6 remove batteries when the balance is not to be used for a long time. They may leak and cause damage to the balance. Damage due to battery leakage is not covered by the warranty. Installing batteries 1. Turn off the balance and disconnect the ac adapter if used. 2. Slide the battery cover off. 3. P...
Page 9: 5. Operation
7 5. Operation 5-1. Turn the power on and off 1. Press the on:off key to turn the power on. All of the symbols are displayed as shown above. (about units: only the units available will be displayed.) the display turns off except for a weighing unit and the decimal point. The balance waits for the we...
Page 10: 5-3. Units
8 5-3. Units the most common unit of weight used around the world is the gram, but there is often a need to shift to alternative units specific to the country where the balance is used or to select modes such as counting or percent. The units and the order they appear in the display are as follows: ...
Page 11: 5-5. Basic Operation
9 5-4. Selecting a weighing unit press the units key to select a unit. The following sections are a description of the three common units: g (gram mode), pcs (counting mode), and % (percent mode). 5-5. Basic operation 1. Select a weighing unit. 2. When the display does not show zero, press the re-ze...
Page 12: 5-6. Counting Mode (Pcs)
10 5-6. Counting mode (pcs) weighs the sample pieces and calculate its unit weight. Using the sample unit weight, the scale counts the number of parts or items. As for the minimum unit weight acceptable, see the function setting “umin”. Selecting the counting mode 1. Press the units key to select . ...
Page 13: 5-7. Percent Mode (%)
11 9. The balance re-calculates the unit weight while the acai indicator is blinking. Do not touch the balance or samples on the pan until the acai indicator turns off. 10. Counting accuracy is improved when the acai indicator turns off. Each time the above operation is performed, a more accurate un...
Page 14: 6. Comparator
12 6. Comparator the results of the comparison are indicated by hi, ok or lo on the display. The comparison is as follows: lo operating conditions (see the function setting “cp”): no comparison (comparator function disabled). Compares all data. Compares all stable data. Compares plus data except tho...
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13 entering the upper and lower limit values 6. With cp hi displayed, press the print key. Enter the upper limit value using the following keys. Sample key to select the digit blinking to change. Re-zero key to set the value of the digit selected. Hold down the key to switch the sign “+” and “-“. (“...
Page 16: 7. Calibration
14 7. Calibration this function adjusts the balance for accurate weighing. Perform a calibration in the following cases. When the balance is first used. When the balance has been moved. For regular calibration. 7-1. Calibration using a weight prepare the calibration weight (sold separately) in advan...
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15 5. At step 3, pressing the print key to weigh the zero-point value. Do not touch the pan during weighing. 6. Place the calibration weight with the same value as displayed on the pan. Press the print key to weigh it. Do not touch the pan during weighing. 7. End appears. Remove the weight from the ...
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16 7-2. Gravity acceleration correction when the balance is first used or has been moved to a different place, it should be calibrated using a calibration weight. But if the calibration weight cannot be prepared, the gravity acceleration correction will compensate the balance. Change the gravity acc...
Page 19: 8. Functions
17 8. Functions 8-1. Key operation cancels the operation and turns off the balance. Item key selects a class and an item. In the weighing mode, press and hold the key to enter the function setting mode. Enter key proceeds to the selected class. Stores the settings per class and goes to the next clas...
Page 20: 8-3. Setting Example
18 8-3. Setting example to set auto power-off function to “enabled”, and the acai function to “disabled”. 1. Press and hold the sample key to display func . 2. Press the print key. The balance displays poff 0 . 3. Press the re-zero key to display poff 1 . 4. Press the sample key several times to dis...
Page 21: 8-4. Storing Weighing Units
19 8-4. Storing weighing units it is possible to store the weighing units that will be actually used from the units available. For the units available, see “5-3. Units”. Select and store the weighing units as described below: 1. Press and hold the sample key to display func . 2. Press the sample key...
Page 22: 8-5. Function List
20 8-5. Function list class item param- eter description 0 auto power-off disabled poff auto power-off 1 auto power-off enabled automatically power off 0 fast / sensitive 1 2 3 cond response 4 slow / stable software filtering 0 stable when within ± 0.5d/0.5s 1 stable when within ± 1d/0.5s st-b stabi...
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21 class item param- eter description 0 acai disabled acai acai function 1 acai enabled if “0” is set, no additional samples required. 0 1 d 1 1/10 d umin minimum unit weight 2 total sample weight ≥5d ( ** ) d = the minimum display division 0 10 pcs 1 25 pcs 2 50 pcs 3 100 pcs smpl sample number 4 5...
Page 24: 9. Options
22 9. Options the following options are available for the ej series: ej-02 usb interface ej-03 rs-232c serial interface ej-07 underhook for ej-3000 / ej-4100 / ej-6100 ej-08 underhook for ej-1500 / ej-2000 ej-11 breeze break ej-12 carrying case ej-13 density determination kit for ej-120 / ej-200 / e...
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23 4. Secure the ej-02 with the screws supplied with the ej-03. Connector inside the option slot. Interface specifications transmission system eia rs-232c transmission form asynchronous, bi-directional, half-duplex data format baud rate: 1200, 2400, 4800, 9600 bps data: 7 bits + parity 1bit (even or...
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24 data format s t , + 0 0 0 0 0 . 0 0 g c r l f header data unit terminator there are four types of headers: st : stable weighing data (including % data) qt : stable counting data us : unstable weighing data (including count and %) ol : out of weighing range (over) the data is normally 9 digits inc...
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25 key mode set the function “prt 1, 2 or 3”. When the print key is pressed while the weighing data is stable (the stable indicator is on), the balance transmits the data. When the data is transmitted, the display will blink one time. Auto-print mode a set the function “prt 2”. The balance transmits...
Page 28: 9-3. Ej-07 / Ej-08 Underhook
26 9-3. Ej-07 / ej-08 underhook by attaching the underhook to the bottom of the balance, large objects that are difficult to load on the weighing pan can be weighed, and the density (specific gravity) of objects may be measured. Refer to the “9-6. Ej-13 density determination kit” for the information...
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27 9-6. Ej-13 density determination kit using this option and calculation program, the balance can determine the density (specific gravity) of a sample. Ej-13 installation push the fixing frame out, and remove the weighing pan. Attach the beaker stand to the balance and fit the pan stand to the pan ...
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28 change the function table selecting a way to set the density of a liquid select the liquid density input method from the function table below. The function table is available only when the density measurement mode is selected. Class item param- eter description 0 water temperature func ldin liqui...
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29 2. Place a sample on the upper pan. 3. Wait for the stable indicator to be displayed and press the sample key to store the weight in air. 4. The display shows that lo blinks and the balance starts to measure weight in water. 5. Place the sample on the lower pan in water. Adjust the amount of wate...
Page 32: 10. Id Number And Glp
30 10. Id number and glp the id number is used to identify the balance when good laboratory practice (glp) is used. The id number is held in memory even if power to the balance is switched off. The following glp data is transmitted to a printer or a computer using the optional rs-232c interface. • t...
Page 33: 10-2. Output Example
31 10-2. Output example to print the glp report, set the function “info 1” and use mode 3 of the printer ad-8121b. To output the glp report to a personal computer, set the function “info 2”. Data format for “calibration report” perform calibration using a weight. Then the balance will output a calib...
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32 “title block” and “end block” when a weight value is recorded as the glp data, “title block” and “end block” are added at a group of weight values in the glp report. To output the glp report to the printer ad-8121b , use mode 3 of it. 1. With the weight data displayed, press and hold the print ke...
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33 2. Cc 0 is displayed. 3. If necessary to change the weight value to check, press the sample key and change the weight value using the following keys. Sample key to select the digit blinking to change. Re-zero key to set the value of the digit selected. Print key to store the value and return to s...
Page 36: 11. Maintenance
34 11. Maintenance 11-1. Notes on maintenance do not disassemble the balance. Contact your local a&d dealer if your balance needs service or repair. Please use the original package for transportation. Do not use organic solvents to clean the balance. Use a warm lint free cloth dampened with a mild d...
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35 the unit weight. Note: pressing the print key without adding samples may reduce counting accuracy. Starting from the 100 samples, 100 - may be displayed when the sample weight is light. This is for your notice and press the print key without adding any samples. When “acai 0” (acai disabled) or “u...
Page 38: 12. Specifications
36 12. Specifications 12-1. Ejseries model ej-120 ej-200 ej-300 ej-410 ej-610 weight capacity 120 g 210 g 310 g 410 g 610 g min. Display “d” 0.01 g 0.01 g 0.01 g 0.01 g 0.01 g repeatability (std. Deviation) 0.01 g 0.01 g 0.01 g 0.01 g 0.01 g linearity ±0.01 g ±0.01 g ±0.02 g ±0.02 g ±0.02 g sensitiv...
Page 39: 12-2. Other Weighing Units
37 12-2. Other weighing units model ej-120 ej-200 ej-300 ej-410 ej-610 capacity 4.233 7.408 10.935 14.462 21.517 oz. Min. Display 0.001 0.001 0.001 0.001 0.001 capacity 0.2646 0.4630 0.6834 0.9039 1.3448 lb min. Display 0.0001 0.0001 0.0001 0.0001 0.0001 capacity 3.858 6.752 9.967 13.182 19.612 ozt ...
Page 40: 12-3. Options
38 12-3. Options ej-02 usb interface ej-03 rs-232c interface ej-07 underhook for ej-3000 / ej-4100 / ej-6100 ej-08 underhook for ej-1500 / ej-2000 ej-11 breeze break ej-12 carrying case ej-13 density determination kit for ej-120 / ej-200 / ej-300 / ej-410 / ej-610 12-4. Dimensions ej-120 / ej-200 / ...
Page 41: Gravity Acceleration Map
39 gravity acceleration map values of gravity at various locations amsterdam 9.813 m/s 2 manila 9.784 m/s 2 athens 9.807 m/s 2 melbourne 9.800 m/s 2 auckland nz 9.799 m/s 2 mexico city 9.779 m/s 2 bangkok 9.783 m/s 2 milan 9.806 m/s 2 birmingham 9.813 m/s 2 new york 9.802 m/s 2 brussels 9.811 m/s 2 ...
Page 42: World Map
40 world map.