WEIGHING SCALE PCB USER MANUAL
Contents
1. SET 2 for a while amp then display 00000 Using the INCREMENT amp SHIFT buttons load the set point 2 value Press ENTER The LED will blink amp your set point values are loaded Place a load greater then set pointl value amp you will hear an intermittent beep from a buzzer Then keep a load larger than the set point2 value amp you will hear a continuous beep from the buzzer Kg Litre Conversion PSEL 2 By pressing the Increment Button the user can toggle between kg or Litre2. Displays If the load placed is more than the maximum load of the scale the display will show sorry If the battery voltage falls below 5 1volts then the display will scroll LOW BATTERY along with buzzer annunciation The display will be switched OFF if the voltage falls still further Piece counting PSEL 0 Press the TARE switch amp SHIFT switch simultaneously The LED will blink amp then display PIECE for a short while amp then display 00000 Place the known pieces of material in the pan amp press ENTER button The LED will blink as acceptance of the load amp the display will show COO000 Using the INCREMENT switch amp SHIFT switch enter the number of pieces of material measured Press Enter Press increment switch and the display shows PIECE for a short while and starts displaying in Counts mode Set Point selection PSEL 1 Press the TARE switch amp SHIFT switch simultaneously The LED will blink amp then display SET 1 for a short while amp then display 00000 Using the Increment and shift switch enter the valuel at which point you wish to get the first annunciation The decimal point will not be displayed so if you want to enter 5kgs as your first set point in rangel setting then you need to enter 05000 amp if the setting is in range2 then you need to enter 00500 Press Enter Now the display will show
3. WEIGHING SCALE PCB USER MANUAL WEIGH SCALE PCB CONNECTOR DETAILS INPUT 0 12V AC RS232 CONNECTOR DISPLAY CONNECTOR gt a KEY PAD BATTERY BATTERY an 5 Q fa a fas 5 rc z 5 a 2 a F Ps KEY PAD SWITCH fa O O oO ee a co K1 K2 K3 K4 RODENT REPELLANT LED KEY4 KEY3 KEY2 KEY1 LAdNI SOTWNY INdNI SOTWNY T149 0V01 HOd 99 A ANNOYS HO PPA How to connect Connect a 0 12volts LAMP transformer to the connecter shown in the above picture IMPORTANT Ensure that the polarity of the battery is correct How to calibrate the board Switch on the power supply keeping the TARE CALIBRATION button pressed You will first see the decimal point on the 6 7segment blink Once the blinking of the LED stops amp the segments displays PIN release the switch Enter your password by pressing the INCREMENT switch amp the SHIFT switch Next press the ENTER button to validate your password then the segments will display PARA To enter into parameter routine press the ENTER button when the display shows PARA If you wish to go to the calibration routine first before entering the parameter values you can do so by holding the INCREMENT button pressed while the display is showing PARA Then it will show CAL Parameter setting The parameters are maximum load L formula value F parameter select value PSEL least c
4. ount Press Enter Display will show Atc Auto Zero selection Enter any value between 0 to 9 as per requirement Press Enter Display will show DO Dummy zero Enter 0 for disabling dummy zero Enter 1 for enabling dummy zero Press Enter The display shows Para again this means that the parameter selection is over Now to Calibrate the scale press the Increment Switch Calibration The display now shows Cal Press Enter Now the display shows Range Decimal Point Selection Enter 0 for selecting the second digit decimal point for eg 9 9999 Enter 1 for selecting the third digit decimal point for eg 99 999 Enter 2 for selecting the fourth digit decimal point for eg 999 99 Enter 3 for selecting the fifth digit decimal point for eg 9999 9 Enter 4 for canceling decimal point selection for eg 99999 Press Enter The display shows the Pan weight in counts Press Enter Now the display shows LOAD Now Keep a known weight for example 5Kg The display will now show the total weight weight of the pan and the 5kg in counts Press Enter Now the display shows 000 000 Enter the value of the weight For example enter 5000 for 5Kg Press Enter The display shows Cal This means that calibration routine is over Now Press Tare and Enter to reset Other
5. ount1 LC1 least count2 LC2 amp auto zero count value AtO and DO After selecting PARA press Enter switch Display will show L for maximum load Enter the max load by pressing the Increment switch and Shift select switch Example for a 30 Kg scale enter the value 30 Press Enter Display will show F for formula Formula value is used for kg litre conversion You need to enter the specific gravity of the liquid say if the oil you wish to measure is 0 970kgs per litre then you need to enter L00970 in your display by pressing the Increment switch and Shift select switch Press Enter Display will show PSEL Parameter Select Value or function select Enter O for for piece counting Enter 1 for selecting set pointl amp 2 Enter 2 for selecting Kg Litre measurement Press Enter Display will show LC1 Least count 1 selection Enter 0 for selecting least countl as 1 Count Enter 1 for selecting least countl as 2 Count Enter 2 for selecting least countl as 3 Count Enter 3 for selecting least count1 as 10 Count Press Enter Display will show LC2 Least count 2 selection Enter O for selecting least count2 as 1 Count Enter 1 for selecting least count2 as 2 Count Enter 2 for selecting least count2 as 3 Count Enter 3 for selecting least count2 as 10 C
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