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PREFACE 

Thank you for purchasing an AJ Series electronic balance.    This is a precision instrument equipped 
with exacting mechanisms in a compact body.    The AJ series provides enhanced functions, including 
a counting mode for stock control of parts, and a limit function for measuring constant quantities by 
consecutive weighings.    Despite its many functions, the balance is easy to operate and features 
user-friendly keys.    Furthermore, the large liquid-crystal display provides excellent visibility, and the 
instrument’s high speed and stability

intrinsic to a tuning fork design

help boost operational efficiency.     

Before using the balance, please check that the following items have been included in the 
package.

     

Should you find any missing parts, please contact our local dealer.   

(1)  Main unit of balance 

 

(2) Measurement pan  

(one round or square pan) 

 

(3) Pan base 

(one small for the round-pan 
balance; one large for the 
square-pan balance) 

 

(4) Windshield  

(one for round-pan 
balance only) 

 

(5) AC adapter (one) 

 

(6)  DIN5P plug set 

 

(7)  Operation manual (one) 

 

 

 

S

P

F

0

ON/OFF

Summary of Contents for AJ-NT/DBNT Series

Page 1: ...peration Manual SHINKO DENSHI CO LTD To ensure safe and proper use of the balance please read this manual carefully After reading this manual store it in a safe place near the balance so you can revie...

Page 2: ......

Page 3: ...rthermore the large liquid crystal display provides excellent visibility and the instrument s high speed and stability intrinsic to a tuning fork design help boost operational efficiency Before using...

Page 4: ...y Memory Update Method 23 7 Measuring Percentage AJ NT only 24 8 Limit Function 26 8 1 Limit Function Setup 26 8 2 Setup of Limit Values by Actual Quantity Loads 28 8 3 Setting up Limit Values by Inpu...

Page 5: ...ay cause serious results RECOMMENDED This term indicates steps that the user should take to ensure the quality and reliability of the balance Meanings of Symbols Each symbol is accompanied by an instr...

Page 6: ...ctric shock or short circuiting could occur The balance may be corroded with resultant malfunction Do Not Leave Afloat Do not use the balance with its adjusters lifted The balance will become unstable...

Page 7: ...not use volatile solvents for cleaning The body may be distorted To clean the unit of stains use a piece of dry cloth or cloth soaked in a small quantity of neutral detergent Do Not Use Do not use the...

Page 8: ...deal Vibration Shaking The measuring room should preferably be located on the ground floor or in the basement Higher floors are more susceptible to heavy vibration and shaking which make such location...

Page 9: ...s in mind be sure to discharge charged samples before measurement Magnetism A sample affected by magnetism indicates different weight values depending on where it is located on the measuring pan along...

Page 10: ...external calibration weight to ensure accurate measurement at all times For more precise calibration use an external calibration weight that approximates the weighing capacity Moreover calibrate the...

Page 11: ...e red circle Adjusters Round pan type Total of two one on either side of the unit s front Square pan type Total of four one on either side at front and rear AC adapter connector Measurement pan Liquid...

Page 12: ...limit function is active M Display of set values from memory If a value is flashing it is being saved CAL Stays on and flashes while span adjustment is in progress Auxiliary scale interval Lights up...

Page 13: ...ng the limit function F Function key Brief press toggle switches the units to be displayed in succession g Pcs etc Brief press moves the flashing digit in the setup of a limit value when using the val...

Page 14: ...measurement pan on top of it Be sure to mount the pan base in the correct direction as illustrated below 2 Windshield setting Capacity 220g 620g only 1 Set a small panel in a large panel An edge with...

Page 15: ...al of two adjusters one on either side at front Square pan type total of four adjusters one on either side at front and rear Caution Use caution when operating the adjusters on the square pan type to...

Page 16: ...econds after startup the indication is reset to zero 3 Switching the measurement mode Press the Function key Each time the key is pressed the unit of measurement changes as indicated The balance is sh...

Page 17: ...indicate only the weight of the sample loaded in the container Weighing only the weight of an added sample 4 Resetting the indication to zero Press the Zero key The total weight of the sample loaded o...

Page 18: ...mains on If the balance becomes unstable the stability indicator will disappear When a displayed value flickers or the stability mark flashes on and off it is likely that the balance is being affected...

Page 19: ...the next item Press the Function key The indication changes to the next item 2 SEL 0 Limit function 3 Selecting an item Pressing the Function key advances the function items at the rate of one item p...

Page 20: ...f points for judgement 23 Pi 2 Upper limit and lower limit values are set up judges among HI OK and LO 0 Disable balance operates continuously Auto power off 4 A P 1 Enable balance powers off in appro...

Page 21: ...the balance indicated zero or less 5 Outputs once if stable and stops output when unstable Even if the sample is not replaced the balance is output once when it stabilizes next time including the zer...

Page 22: ...e entered prior to use the desired unit of measurement to be displayed can be chosen simply by pressing the Function key For more information on the units of measurement that can be set here please re...

Page 23: ...81 S u to 85 S u prior to use the desired unit of measurement to be displayed can be selected simply pressing the Function key For more information on the units of measurement that can be set please...

Page 24: ...g Sample unit weight weight unit Sample weight Total g g 1 500 500 pcs Measured number of samples If samples to be counted deviate widely in weight or a higher measure of accuracy is desired it is re...

Page 25: ...ight of one sample measurable unit weight is insufficient For the range of unit weights that can be measured and saved please refer to 13 Specifications on page 41 2 In the sampling of Operation Step...

Page 26: ...3 Adding samples Add approximately an equal number of samples as the number currently displayed Add them gradually in groups of approximately the same number until the number of samples is approximate...

Page 27: ...ference weight 1 Activating the percentage mode Press the Function key to disaplay 2 Setting the reference value Press the Set key The display begins flashing P SEt The balance is now ready for refere...

Page 28: ...1 The weight of the reference sample is insufficient For the limit weight that can be saved limit weight please refer to 13 Specifications on page 41 2 While setting up the reference value in Step 2 t...

Page 29: ...weight saved as the limit value 2 Numeric value setup method The limit value is entered with a key stroke The limit values entered are held in memory even when the balance is powered down The respect...

Page 30: ...nges to Judgement Condition Press the Zero key to select the desired condition 5 Setting the judgement range Press the Function key The display changes to Judgement Range Press the Zero key to select...

Page 31: ...the lower limit value has been saved the balance displays it briefly and proceeds to the following setup If One point setup was chosen the setup is complete 4 The upper limit value setup The display...

Page 32: ...y The flashing moves to the digit on the immediate left Each time the key is pressed the flashing digit moves one position left When the leftmost digit is selected the flashing advances to the rightmo...

Page 33: ...e upper limit value after showing H SEt 2 If you make a mistake press the Function key during the setup of actual quantities or the Set key during the setup of values 3 If you press the Memory key whi...

Page 34: ...5 GND Signal ground 1 4 2 5 3 RS232C connector DIN 5 pin female Rear l Zero adjustment is possible by connecting an external zero adjustment input and a signal ground through contacts or a transistor...

Page 35: ...ction with an IBM PC AT compatible IBM PC AT compatible D SUB9P Balance DIN5P 3 2 5 1 7 8 6 4 TXD RXD GND DCD RTS CTS DSR DTR RXD TXD GND 3 4 5 Sample connection with PC9801 Balance DIN5P PC9801 D SUB...

Page 36: ...Transmission codes ASCII codes 8 bit 4 Signal levels Compliant with EIA RS 232C HIGH level Data logic 0 5 to 15 V LOW level Data logic 1 5 to 15 V 5 One character bit configuration Start bit 1 bit Dat...

Page 37: ...D8 U1 U2 S1 S2 CR LF 3 Six digit numeric format for model provided with an auxiliary scale interval Composed of 15 characters including the terminators CR 0DH LF 0AH with added to the left of the auxi...

Page 38: ...2EH Decimal point floating position When the data is an integer it may be omitted and replaced with a blank space SP in the lowest order place SP 20H Space zero of leading portion of value leading ze...

Page 39: ...flow transmission and reception is stored by a full duplex system commands can be transmitted regardless of their data transmission timing 2 When the balance has executed the received command it acti...

Page 40: ...aced the balance is output once when it stabilizes next time including the zero indication 7 4FH 37H Pressing Memory key causes the balance to output once when stable 9 4FH 39H Output once after stabi...

Page 41: ...is switched on Overcharging will also decrease battery life 2 When the balance is used for the first time after purchase the operating time may be shorter than when using a fully charged battery This...

Page 42: ...the balance flashes change the battery at an early stage 2 The balance can be operated with AC adaptor while the dry cell battery is installed does not show in this case 3 Operable hour will be shorte...

Page 43: ...flash at LO Likely to produce errors in the counting mode because the sample weight is insufficient Execute the Memory Update Method 23 o Err appears before the capacity is reached Gross weight excee...

Page 44: ...vibration method Pan Size 118 mm 170mm x 140mm Output Compliant with RS232C Windshield Provided Not provided Option Battery drive Only AJ NT Model AJ 2200NT DBNT AJ 3200NT DBNT AJ 4200NT DBNT AJ 6200...

Page 45: ...imum Indications for Different Indication Units Model Unit of measurement displayed AJ 220NT DBNT AJ 320NT DBNT AJ 420NT DBNT AJ 620NT DBNT AJ 820NT DBNT AJ 1200NT DBNT 220 320 420 620 820 1200 0 01 0...

Page 46: ...110 140 210 280 420 0 01 0 01 0 01 0 01 0 05 0 05 oz 0 001 0 001 0 001 0 001 4 8 7 9 2 13 18 26 0 0005 0 001 0 001 0 001 0 005 0 005 lb 0 0001 0 0001 0 0001 70 100 130 190 260 380 0 01 0 01 0 01 0 01...

Page 47: ...4301 15 43236 1ct 0 2 1 0 00705 0 00044 0 00643 0 12860 3 08647 1oz 28 34952 141 74762 1 0 06250 0 91146 18 22917 437 5 1lb 453 59237 2267 96185 16 1 14 58333 291 66667 7000 1ozt 31 10348 155 51738 1...

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