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INSTRUCTIONS
FA/JA ELECTRONIC BALANCE
OPERATION
CONTENT
1. Outline （1）
2. Main technical Specifications （2）
3. Drawings for Balance Installation （4）
4. Operating （8）
A. Preparation （8）
B. Operation （8）
C. Start （8）
D. RNG Weighing （9）
E. UNT Unit Change （9）
F. INT Integrating Time Adjustment （9）
G. ASD Sensitivity Adjustment （10）
H. Balance Calibration （10）
I. PRT Output Mode Setting （10）
J. COU Count Function （11）
K.Weighing,Taring,Add Objects,Read Devitions （11）
5. MaintenanceandTroubleshooting （12）
6. Dats InterfaCe （14）
7. Serial Single （ RS232C ） （14）
8. Random Accessories （15）
can be connected to the microprocessor and various printers.No.Standard Parallel Output.The pin and the corresponding signanls are as follows:
PIN SIGNAL ILLUSTATE
1 SI input signal
2 GND
3 SO serial output signal（baud rate is 1200）
4 GND
7.Serial Single （RS232C）
The connection method between the scale and computer serial port is as follows:
Computer（9pins） Scale（9pins）
2 3
3 2
5 5
1） The baud rate of the serial port of scale is 1200.
2） The date format is 10digits, one start digit is（0） ,8 digits are date positions （ASCII Code,low digits in the front）,1 stop digit.
3） No odd-even check
4） The date will be output continuously without any special reading commands A detailed output frame is as follows:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Type | Space | */Space | +/- | Date | Date | Date | Dot | Date | Date | Date | Date | Unit1 | Unit2 | CR | LF |
8 Random Accessories
1. 200g（and100g）calibration weights 1 piece
2. Wire with both-side plug 1 piece
4 . Weights tweezers 1 piece
5. Handkerchief 1 piece
6. Operation manual 1 piece
7. Certificate 1 piece
| SN | TROUBLE | CAUSE | REMEDY |
| 6 | Display remains at a certain digit or indicates nonsense symbol | ·Instant interference ·Wreng line voltage | ·Turn on the balance once again or replug the power cord ·Chang to normal line voltage |
| 7 | The stable mark “0”on the left of the display doesnt go out | ·A higher balance sensitivity ·undesirable environment such as strong air flow or vibration | ·Set to lower sensitlivity ·Improve the environment |
| 8 | Remain at Waiting Status———— | ·Thr balance position is not correct, e.g. With strong air flow, vibration or great fluctuation of room temp. ·The selected sensitivity is toohigh | Improve the environment ASD-3 |
| 9 | Cal Err Displays | ·There is an object on the pan befpre calibration ·not clear before calibration ·Depress CAL before the | ·Take away the object,clear and recalibrate |
| 10 | Err-1 Err-2 Display | ·Instant interference ·Something wrong with thebalance | ·Ture on the balance once again ·Send it to the service center |
| 11 | The weighing unit on the right dosent display | ·not calibrated ·The calibrated number in the internal memory of the balance has been erased | ·Calibrate the balance |
| 12 | Cou-Err Display | ·No Constant be set before operating counting function ·Overload when setting constant ·Underload when setting constant | ·Set average number before operating counting function |
6.Date Interface
Date interface adopts the standard 9-core RS-232C sDcket. The date interface is provided with RS232C universal two - way serial interface, which
Thank you for busying the type FA/JA series electronic balance frorn our company. For correct and safe fixing and operation, as well as full function apply, we suggest that you should read tha users’ manual before using it Thanks
The balance is multifunctional electronic balance using MCS-5l series SCM This balance has gram, cant, ounce for users to select （cant and ounce for export） besides having automatic calibration, integral time adjustment and stability adjustment functions This balance has RS232C data serial duplexing port to connect with microcomputer and serial port punter This balance is used for fast exact weight measuring widely in enterprise, university, graduate school lab as an ideal lab instrument.
Finally, after reading the manual, please keep it carefully for referring.
2 Main technical Specifications
| Model | FA1004 | FA1104 | FA1604 | FA2004 | FA2104 | |
| Accuracy Degree |
|
|
|
|
| |
| Weighing Range（g） | 100 | 110 | 160 | 200 | 210 | |
| ReadlngAccuracy（mg） | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| Taring Range（g） | 0~100 | 0~110 | 0~160 | 0~200 | 0~210 | |
| Repeatability Standard Deviation（g） | ±0.0002 | ±0.0002 | ±0.0002 | ±0.0002 | ±0.0002 | |
| Linear Error（g） | ±0.0005 | ±0.0005 | ±0.0005 | ±0.0005 | ±0.0005 | |
| Stable Time （Typical）（s） | ≤6 | ≤6 | ≤8 | ≤8 | ≤8 | |
| Integrating Time （Adjustable）（s） | 2/4/8 | 2/4/8 | 2.5/5/10 | 2.5/5/10 | 2.5/5/10 | |
| Pan Dia.（mm） | Φ80 | |||||
| Overall Dimensions （mm） | 360×217×345 | |||||
| Net Weight（kg） | 6.8 | |||||
| Power Supply | 220V | +22V -33 V | 50Hz或110V ±11V 60Hz | |||
| Power Consumption （V .A） | 15 | |||||
| Auto-Cal Weight Range（g） | 100 | 100 | 100 | 200 | 200 | |
| Warm-upTime（mis） | 180 | 180 | 180 | 180 | 180 | |
weight the negative value of the weight dispIay.Put the object to be weighed on the pan.The corre sponding plus or minus deviution will display, comparing the weighed object with the reference weight
UNLOAD
Loose the screwn of the bottom cover,raveal the hook.Put the balance on a woking table with a hole. Level and calibrate the balance .An object can be weighed with the hook.
5.Maintenance and troubleshooting
MATNTENANCE OF THE BALANCE
The batance should be used carefully.Clean the pan and the case frequently with soft cloth and toothpaste.Don,t wipe the batance with strong agent.
TROUBLESHOOTING
| SN | TROUBLE | CAUSE | REMEDY |
| 1 | No ligbt on Display | ·Power is not on ·Disptsy switch is not on ·Instant interrference | ·Check and turn it on again ·Depress ON button ·Switch on again and replug power |
| 2 | Displsy the upper hstf only | ·Overload ·The calibration in the intemal memory may ba damaged ·The pan is not installed correctly | ·Reduce the load immediately ·Recalibrate according to the above procedures. About 8 seconds after the standard weight has been put on,the calibrated result may be displayed. A certain stable time is necessary. ·Take out the pan and reinstall it. |
| 3 | Display the lower half Only——— | ·without pan,too light ·he pun is not installed correctly | ·Reinstall the pan |
| 4 | The weighing result is not stable （date changed swiftly） | ·due to air flow | ·Cheek the windproof cover tu see if it is closed. ·Change to a longer integrating time |
| 5 | The retult is not correct | ·not zeroing before weighing ·Use the balance without calibration or the cal weight is not accurate ·The line vollage is too low or net correct | ·Depress TAR button |
if a normal weighing function is required ,release when COU-00 display, and waiting status“……” will be indicated ,at last0.000g weighing status will be indicated .lf the average value of five is required, release when COU-5 displays, then put5 objectson the pan Depress CAL once again. “……”waiting status displays ,and about several seconds later,5 will be displayed. Take away the objects to be weighed ,zero displays. At that time the counting of the same objects to be weighed can be done （Attention :the weight of the objects to be weighed must not be greater than the maximum weighing rang of the balance）. If you average over 10,25 even SO objects ,then the accuracy of counting will be higher Depress TAR,“0”will be indicated in the display and counting can be done at that time.
K . Weighing ,Taring ,Add Objects ,Read Devitions
WEIGHING
After the selection of the above modes（all the modes can be used for weighing after the power is off ,due to the memorv function of the balance ）,depress TAR,zero will display.Put the object to be
weight on the pan.When the number is stable, i.e.“0”on the left of the displaygoes out,the number
display goes out,the number displayed will be the weight of the object.
TARING
Put the container on the pan, the weight will display.Depress TAR,zero displays. That is taring. Put the objects to be weighed into the container, the value displayed is the net weight of the object to be weighed
ACCUMULATIVE WETGHTNG
Pat the objects be weighed on the pan one by one with taring method and tare and clear for each one.Take away all the objects to be weighed , the absolute value display in the total weight of the objects to be weighed.
ADD OBJECTS
Set the mode of INT-0 and put the container on the pan , then tare. Add the objects to be weighed （liquid or loose objects） into the container one by one the continuous reading value can be obtained quickly. when the added objects reach the required“0”on the left of the display goes out and the number display is the weighing value required by the user. When adding the mixed objects.the net weight of each object can be measured by taring method.
PEAD DEVIATIONS
Put the reference weight（or rample） on the pan and tare . then take off the reference
| Model | JA1003 | JA1203 | JA2003 | JA3003 | JA5003 | ||
| Accuracy Degree |
|
|
|
|
| ||
| Weighing Range（g） | 100 | 120 | 200 | 300 | 500 | ||
| ReadlngAccuracy （mg） | 1 | 1 | 1 | 1 | 1 | ||
| Taring Range（g） | 0~100 | 0~120 | 0~200 | 0~300 | 0~500 | ||
| Repeatability Standard Deviation（g） | ±0.001 | ±0.001 | ±0.001 | ±0.001 | ±0.001 | ||
| Linear Error（g） | ±0.002 | ±0.002 | ±0.002 | ±0.002 | ±0.002 | ||
| Stable Time （Typical）（s） | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ||
| Integrating Time （Adjustable）（s） | 2/4/8 | 2/4/8 | 2/4/8 | 2/4/8 | 2/4/8 | ||
| Pan Dia.（mm） | Φ80 | Φ125 | |||||
| Overall Dimensions （mm） | 360×217×345 | ||||||
| Net Weight（kg） | 6.8 | ||||||
| Power Supply | 220V | +22V -33 V | 50Hz 、110V ±11V 60Hz | ||||
| Power Consumption （V .A） | 15 | ||||||
| Auto-Cal Weight Range（g） | 100 | 100 | 200 | 200 | 200 | ||
| Warm-upTime （mis） | 60 | 60 | 60 | 60 | 180 | ||
Note:The balance is turned on when the power is on. The panel switches activate display only. The power plug should be removed if the balance is not used for a long time.If it is used daily, the power needn’ t be turned off.The only thing needs to be done is to turn off the display.It is not necessaly to warm up due to the power on,so it can be used at any time.（“Aong time”means more than 5 days.）
3.Drawings for Balance Installation
3
2 1.panel
2.gradienter
3.scalepan
1
1 1. Data Interfale
2. Transformer
3.Electrical Outlet
3
2
Take away all the objects to be weighed on the pan. Set RNG-60,INT-3, ASD-2, and unt-g. Depress slightly TAR for clear thebalance.
BALANCE CALIBRATION
Depress slightly CAL.CAI-200 will be on the flash-display. Therefore, put the prepared 200g standard weight on the pan ,the flash-display will stop.
After several seconds, 200.000g will be displayed. Remove the calibration weight,the display should indicate 0.000g. if not clear once again and repeat the above procedures. （Attention:More than two times of calibration are mcommended in order to get accurate result.）
The display sequence of the calibration is shown as the figure.
I . PRT Output Modde setting
Deprss PRT and hold there will be four modes displayed circularly for user to select at will..
PRT-O is the mode of indefinite time output ; slghtly depress PRT once ,the weighing
result will be.out on the output interface once.
Attention: At this time you should depress the button slisghtly and quickly, otherwise, the next output mode will be displayed
PRT-1 output once every half a minute
PRT-2 output once every minute
PRT-3 output once every two minutes
The setting of PRT is the same as RNG
J. COU Count Function
The balance has a function of counting. The average number are 5,l0,2nd 50,total of four .The Setting of Range of Average Numbers
Only depress COU and hold ,the display will be circulating continuously as the following.
It means the average value of （5,10,25,50）objects respectively
E.UNT Unit Change
If the accuracy of the reading needs to be 0.1mg release when the display is mg-60; and the appears waiting state...,the weighing state will be shown at last.
Depress ERY button and hold until the display is shown as the following figure circulating continuously.
“g” means the value is expressed in gram .“—” means the value is expressed in metric carat
“y” means the value is expressed in oz.t.The unit will be set same as RNG.
F. INT Integrating Time Adjustment
Four modes of integrating time can be selected circularly as shown in the figure
The corresponding integrating time is as follows:
INT-0 fast, NT-1 shorter, INT-2 short, INT-3 longer
The selection of the integrating time will be the same as RNG
G. ASD Sensitivity Adjustment
Same as INT interrating time adjustment button: there are four circulating modes
provided for sensitivity adjustment.
ASD—0 the highest ASD—1 high ASD—2 higher ASD—3 low
ASD-0 is used for test run and not to be usd by the users.
The selection of sensitivity is the same as RNG.
Here is a list of ASD usesd with INT for user’s reference only.
The fastest weighing: INT-1 ASD-3
Normal: INT-3 ASD-2
With undesirable environment INT-3 ASD-3
H. BALANCE CALIBRATION
Normally, the balance should be calibrated after a long period of storage, movement, change of environment or in order to obtain precise measurement.
Preparation for the balancce calibration:
Single Measuring Range
1
2
1.Cover Honrd 2..Pothook
4. Operating
A. Preparation
·Unpack the box and remove all packings . Take out buffer sponge in the wind proof cover and install pans.
·Put the balance on a stable working table free form vibration, sunshine and air flow.
·Ambient temperature:
20℃±5℃ for the first class balance with a fluctuation of temperature not greater than 1℃/h;
20℃±7.5℃ for the second class balance with a fluctuation of temperature not greater than 5℃/h;
·Relative humidity:50%-75% for the first class lance, 50%-80% for the second class balance.
| +22V -33 V |
·Working voltage: 220V 50Hz 、110V ±11V 60Hz
B. Operation
·Check the level meter before opertion,lf the bubble is not in the center, adjust the level legs to make the bubble in the center..
·The balance adopts soft touch buttons , so it can be controlled with multikey boards .lt is easy to operate .Function change and selection can be realized simply by depressing the corresponding buttons.
C. Start
·Select an appropriate line voltage and set the voltage switch to the corresponding position.
·Turn the power on and the balance is ready to run（but the display doesn’t work ）,normally one hour after power is one , the display can be operated.
| ± 。 | 8888888 | FA2004 % g |
Function of the keyboard:
“ON”DISPLAY ON
Depress slightly the button “ON” the display will be lighted..
Check the function of the display ,about 2 seconds later ,the model of the balance will be displayed.
For example:
then the weighing mode.
0.0000g or 0.000g
or
“OFF” DISPLAY OFF
Depress slightly the button“OFF” ,the display will go out. If the balance will not be used for a long time ,the power plug should be taken off.
“TAR” Clear and Tare
Put the container on the pan,the weight of the container should be displayed:
Depress “TAR” button,the display will go out and the display will be all zeroes. Taring ia completed:
When the container is removed, a negative value of the container weight will be displayed.
Depress“TAR”again, the display will be all zeroes,i.e.the balance clears.
D.“RNG”Weighing
The balance has two reading accuracles: 0.1mg within range 0-60g; if the range is above 60g the balance changes its accuracy to 1mg automatically. But through the function of taring of 0-210g,the accuracy will be 0.1mg for reading step if the total
weight is below 210g,（the analysis quantity is below 60g）;i.e.if the weight of the contaner is above 60g, depress slightly “TAR”,taring the weight of the container first,then weigh the object（≤60g）, the reading accuracy is still 0.1mg.
set the Weighing Range
Depresa“RNG”and hold until the display is shown as the following figure. circulating continuously.
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