Pennsylvania Scale Company Model 400B Battery Powered Digital Indicator Operation & Calibration Manual

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1 Pennsylvania Scale Company Model 400B Battery Powered Digital Indicator Operation & Calibration Manual Pennsylvania Scale Company 1042 New Holland Avenue Lancaster PA For online interactive tech support or more information on Pennsylvania Scale products, visit our website at Revised September 3, 2002

2 PENNSYLVANIA SCALE MODEL 400B WEIGH & COUNT INDICATOR INSTALLATION INSTRUCTIONS PENNSYLVANIA SCALE CO. 21 Graybill RD. Leola PA

3 INSTALLATION Your Pennsylvania Scale Model 400B weighing and counting indicator has been packaged at the factory to ensure safe, damage free arrival. Please carefully inspect the box and packaging materials for any external physical damage before removing the indicator from the box, and report any damage to your carrier service. The 400B is a battery powered indicator that runs on eight standard, D-cell alkaline batteries. These batteries are installed before the indicator leaves the factory, and should supply approximately 2000 hours of operation when used with a weighing platform using (4) 350 ohm load cells. (4000 hours with a single 350 ohm load cell platform) INDICATORS SUPPLIED WITH PENNSYLVANIA SCALE PLATFORMS If your 400B indicator has been matched to a Pennsylvania weighing platform before leaving the factory, the proper mating connector is supplied on your platform cable to connect directly to the load cell connector on the back of the indicator. Your platform and indicator have been matched and calibrated, no further calibration will need to be done. Simply plug your platform into the appropriate load cell connector on the back of your indicator as shown: Load Cell Connector #1 Optional Load Cell Connector #2 ON/OFF Switch BACK OF INDICATOR Flip the ON/OFF switch to the ON position and refer to the Operator s Manual supplied with your indicator. 3

4 MATCHING THE 400B INDICATOR TO A WEIGHING PLATFORM If your indicator was purchased without a matching platform, it will need to be wired and calibrated to your platform. Your indicator has been shipped with a mating male 7 pin connector to attach to your platform s cable. This mating connector has 7 solder pins and will require the use of a soldering iron. - Unscrew the black plastic strain relief nut from the strain relief, and the strain relief from the connector body. - Slide the strain relief nut over the platform cable, rounded end first - Then slide the strain relief over the platform cable. - Trim and then solder the platform cable wires to the connector, following the pin assignments below EXCITATION Excitation SENSE 2. + Signal Signal SIGNAL Sense SIGNAL 5. - Sense Excitation SENSE Shield - EXCITATION 7 - SHIELD LOAD CELL CONNECTOR PIN OUT - Screw and tighten the strain relief on to the connector. - Screw and tighten the strain relief nut onto the strain relief. - Plug the connector onto the appropriate load cell connector on the back of the 400B indicator. Load Cell Connector #1 Optional Load Cell Connector #2 ON/OFF Switch - Flip the ON/OFF switch to the ON position and refer to the calibration instructions to calibrate the your 400B to your platform. 4

5 PENNSYLVANIA SCALE COMPANY MODEL 400B WEIGH AND CONUT INDICATOR CALIBRATION MANUAL Pennsylvania Scale Co. 21 Graybill Rd. Leola PA

6 TABLE OF CONTENTS INTRODUCTION TO CALIBRATION ENTERING CALIBRATION MODE CALIBRATION PROGRAMMING CAPACITY AND RESOLUTION HOW TO ENTER CAPACITY PROGRAMMING PROCEDURE ADJUSTING THE WEIGHT CALIBRATION LEAVING CALIBRATION CLEARING MEMORY ERROR CODES SPECIFICATIONS ELECTRICAL SPECIFICATIONS ANALOG SPECIFICATIONS GENERAL SPECIFICATIONS 18 6

7 1.0.0 INTRODUCTION TO CALIBRATION Before beginning calibration of the Pennsylvania 400B indicator, one should become familiar with the operation of the front panel buttons and the display. The display is made up of two LCD display modules, both having six numeric digits and a number of arrow indicators that point to various scale functions labeled around the outside of the displays. In normal operation, the upper display shows the weight information and the lower display shows average piece weight and count information. SAMPLE READOUT kg lb OUT < ZERO NET ^ > FUNC PIECES APW TOTAL Scale 1 Scale 2 BATT The Above picture shows Scale 1 reading out in pounds and is set on zero. The keypad on the 400B is made up of 16 buttons. Ten numeric buttons, a decimal button, function button and four scale operation buttons. Numeric buttons 1 through 9 also have a secondary operation showing in a white block below each number. These secondary operations are initiated by pressing the function button and then the desired key. EXAMPLE: To operate the CLEAR button: - Press FUNC - The arrow indicator under FUNC on the display will come on. - Press 1/CLEAR G/N FT kg/lb ADD TOTAL CL TOT CLEAR ZERO C-OUT FUNC 0. TARE APW SAMPLE SCALE SELECT 7

8 When the indicator is put into the calibration mode, some of the buttons become re-defined to operate calibration functions. These functions are as follows: BUTTON CLEAR CL TOT TARE APW SAMPLE CALIBRATION FUNCTION Returns the indicator to the initial calibration step without changes. Clears the indicator s memory. Is used as a scroll button to select calibration values. Becomes an increment button, used to enter numbers onto the display. Becomes an enter button, used to enter information and move to the next program step ENTERING CALIBRATION MODE - First locate and remove the calibration access plate on the bottom of the indicator. Claibration Access Plate Bottom of Indicator Under the calibration access plate you will find a button and a slide switch. The button is the calibration button and is used to enter the indicator into the calibration mode. The slide switch is a memory protection switch that allows the memory information to be changed or deleted. Claibration Button Memory Protection Switch CALIBRATION ACCESS - Next flip the ON/OFF switch to ON and wait for the diagnostic countdown to begin. 8

9 - During this diagnostic countdown, press the calibration button. - The display will show the weight in the upper display and the word COUntS in the lower display. SAMPLE READOUT 0.00 C O U n t S - Slide the memory protection switch to the off position. > CALIBRATION ON OFF From the calibration entry screen, two calibration sections may be accessed. These are, Adjusting the Weight Calibration and setting the Capacity, Resolution, and other Parameters. Adjusting the weight calibration is described in section and parameter programming is found in section These two calibration sections may be done independently of each other and calibration may be ended after completing either section PROGRAMMING CAPACITY AND RESOLUTION When programming the 400B to a platform for the first time it will be necessary to configure the indicator s weighing capacity, resolution and other parameters HOW TO ENTER CAPACITY 9

10 Before attempting to enter a capacity for the indicator, an explanation of the process is necessary. The capacity is tied to the number of divisions, or graduations, that the indicator can show and the placement of the decimal point within those graduations. The possible entries for the divisions are numbers from 500 to 10,000. Using a 5000 lb platform as an example, 5000 would be entered as the number of divisions and 0 would be entered for the number of decimals. This sets the capacity to 5000 and allows for up to 5000 graduations for weighing. In the case of a 5 lb scale the number 5000 would also be entered, but the placing of the decimal point at three decimal positions makes the capacity 5 lb by 5000 graduations. A chart showing common entries for the program steps; Divisions, Graduations, and Decimals for typical platform capacities is shown below. CAPACITY # OF DIVISIONS STEP DECIMAL 5 lb lb lb lb lb lb lb lb lb To determine other capacity / resolution use the following formula: Capacity/Divisions rounded up to 1, 2 or 5 = Step and Decimal PROGRAMMING PROCEDURE - From the calibration entry screen, press APW. - Display will show: SAMPLE READOUT d l u l S I - Key in the number of divisions. Possible entries are between 500 and 10, Press SAMPLE. 10

11 - Display will show: SAMPLE READOUT 1 S t E P - Use the TARE button to select the graduation size. Selections are 1, 2, or 5. - Press SAMPLE. - Display will show: SAMPLE READOUT 0 d E C I n A - Use the TARE button to select number of decimal places. Selections are 0,1,2, or 3. - Press SAMPLE - Display will show: SAMPLE READOUT 0. 5 S t A b d 11

12 - Enter the value of the stable window. (This is the amount of weight motion the platform must see before the stable indicator will flash on or off.) This is entered by number of divisions. Possible entries are from 0.1 to Press SAMPLE. - Display will show: SAMPLE READOUT 0. 5 Z E r O d - Enter the Auto Zero Tracking value. (When the 400B indicator is on zero, placing a weight less than this value on the platform will cause the indicator to zero that weight off.) This value is also entered in number of divisions. Possible entries are 0.1 to Press SAMPLE. - Display will show: SAMPLE READOUT 10 I n I t Z r - Use the TARE button to select the percent of full capacity that may be zeroed off. Possible selections 2% or 10%. - Press SAMPLE. 12

13 - Display will show: SAMPLE READOUT In APW - Use the TARE button to select how the average piece weight is to be displayed and entered. Possible entries are, weight for one piece or weight per 1000 pieces. Enter: (0.001 = weight of one piece) or (1.000 = weight per 1000 pieces) - Press SAMPLE. - Indicator will return to the calibration entry screen: 13

14 2.3.0 ADJUSTING THE WEIGHT CALIBRATION - From the calibration entry screen. - Press the SAMPLE button to enter weight calibration mode. - The display will show: SAMPLE READOUT G A I n 1 - This is the gain adjust for the analog signal, the selections are 1 or 2 and are made with the TARE button. 1 is the normal setting, used for platforms with an output of 2 mv/v or less. - Press SAMPLE to enter the information and move to the next step. - Display will show: SAMPLE READOUT A Z E r O - This step is the deadload or calibration of the zero point. If the upper display shows the letter A as above it indicates that a zero value is already stored, this must be cleared by pressing the FUNC button and then the CLEAR button before a new zero can be entered. When the upper display shows a 0 press SAMPLE with no weight on the platform. 14

15 IMPORTANT NOTE: At this point you must select the unit of measure to perform the calibration in. Press FUNC and KG/LBS to cycle through the selections of LBS or KGS - Display will show: SAMPLE READOUT V E I G H t - Place a calibration weight on the platform and key in the value of the weight being used. NOTE: A calibration weight less than 10% of the platform s maximum capacity is not recommended. - With the calibration weight on the platform, and the correct value of the weight showing on the display, press SAMPLE. - Display will return to the calibration entry screen: SAMPLE READOUT 0.00 C O U n t S 15

16 2.4.0 LEAVING CALIBRATION - Slide the memory protection switch to the ON position - To leave the calibration mode, first press the FUNC button and then the CLEAR button. - The display will go through the diagnostics and then display the weight. < - Replace the calibration access plate CLEARING MEMORY ON OFF While in the calibration mode, with the calibration entry screen being displayed, it is possible to completely clear the programming memory of the 400B. This is done by first pressing the FUNC button and then the CL TOT button. 16

17 3.0.0ERROR CODES The following is a list of error codes and troubleshooting messages: CODE NUMBER Blank Display Displays all dashes Test 8 Error 1 Error 13 Error 14 Error 51 Error 52 Error 60 Error 61 Error 62 Error 72 POSSIBLE PROBLEM Check Batteries Check Fuse Weight on platform at power up exceeded zero range. Check load cell wiring or cable Defective Platform EEPROM memory erased, no calibration data Too many decimal positions for the number of graduations. Defective CPU Board Indicator unstable Memory protection switch in the wrong position Average piece weight value too small. Keyed entry not compatible with graduation size. Divisions, decimal point and display graduation not compatible with load cell input, signal too low. Divisions, decimal point and display graduation not compatible with load cell input, signal too high. Load cell signal too low to calibrate, add more test weights. 17

18 4.0.0 SPECIFICATIONS ELECTRICAL SPECIFICATIONS Working Temperature Input voltage Load cell excitation voltage Power Consumption - 10 C to +40 C 8 D-Cell batteries, 12 vdc 6 vdc (+3 vdc, -3 vdc), gated power supply ( gate time 2 ms ) Approximately 2000 hours continuous, driving (4) 350 ohm load cells ANALOG SPECIFICATIONS Maximum input range Minimum dead load value Maximum dead load value Minimum signal input grad Minimum load cell impedance 20 mv 0 mv 5 mv 2.5 uv 87 ohms (4) 350ohm load cells GENERAL SPECIFICATIONS RFI/EM shielding Meets NIST H-44 guidelines Physical dimensions Height 6 1/2, width 10, depth 5 1/2 Overall height, with universal stand, 9 Load cell connector 7 pin circular, waterproof Indicator Enclosure NEMA 4 water washdown Certifications NTEP Certificate No OIML EC type-approval 89/366/ECC EN Class A & EN

19 PENNSYLVANIA SCALE MODEL 400B WEIGH & COUNT INDICATOR OPERATOR S MANAUAL PENNSYLVANIA SCALE CO. 21 Graybill RD. Leola PA (717) Fax (717)

20 TABLE OF CONTENTS DISPLAY/KEYBOARD DISPLAY KEYBOARD DUAL KEY FUNCTION DESCRIPTIONS INITIAL POWER_UP/DIAGNNISTICS WEIGHING WEIGHING WITHOUT TARE WEIGHING WITH TARE KEYPAD TARE FUNCTION PLATFORM TARE CLEARING TARE COUNTING MODE COUNTING BY ENTERING KEYPAD PIECE WEIGHT COUNTING DETERMINING PIECE WEIGHT BY SAMPLE COUNTING OUT (REVERSE COUNTING) ACCUMULATING TOTALS ACCUMULATING WEIGHT AND COUNT ACCUMULATING WHEN COUNTING OUT 27 20

21 1.0.0 DISPLAY/KEYBOARD DISPLAY The Pennsylvania Scale Model 400B indicator display is made up of two LCD display modules, both having six numeric digits and a number of arrow indicators that point to functions labeled around the outside of the displays. The upper display shows weight information and the lower display is used for average piece weight and count information. kg lb OUT < ZERO NET ^ > FUNC PIECES APW TOTAL Scale 1 Scale 2 BATT - Two, six digit LCD displays,.5 in height - Upper display, displays weight - Lower display, displays piece count - Twelve illuminated status arrows to indicate the following: Zero Net Scale 1 Scale 2 Pounds (lb)* Kilograms (kg)* Count-Out Function Battery Status Pieces Average Piece weight Totals. (* The lb and kg arrow indicators also act as stable indicators. They will only come on when the motion of the platform is within the stable window.) 21

22 1.2.0 KEYBOARD G/N FT kg/lb ADD TOTAL CL TOT CLEAR ZERO C-OUT FUNC 0. TARE APW SAMPLE SCALE SELECT The keyboard on the 400B is made up of 16 buttons. Ten numeric buttons, a decimal, a function, and four scale operation buttons. Numeric buttons 1 through 9 also have a secondary operation, shown in the white block below each number. These secondary operations are initiated by pressing the function button and then the desired key. EXAMPLE: To operate the CLEAR button: - Press FUNC - The arrow indicator under FUNC will come on. - Press 1/CLEAR 1.2.1Dual Function Key Descriptions CLEAR: Erase entry ZERO: re-zeroes the indicator C-OUT: Counting Out feature ADD: Add to accumulator, weight and count TOTAL: Displays total accumulated weight and piece count. CL-TOT: Clears the accumulated totals G / N: Switches weight display between gross and net weight. FT: Fixed tare kg / lb: Switches weight between kilograms and pounds. TARE: Numeric tare, platform and accumulated tare weights. APW: Enters the piece weight from the keypad entry, and displays piece weight. SAMPLE: Enters number of sample pieces. SCALE SELECT: If 2 nd Scale option is installed, selects platform. FUNC: Used to select numeric key secondary functions. [ 0 ]: Numeric zero key [. ]: Decimal point. 22

23 2.0.0 INITIAL POWER-UP/DIAGNOSTICS After the power switch is placed in the ON position, the indicator will display the software version number <<S-HHOG>> in the upper display, and <<Od 1001>> in the lower display for a few seconds. The display will then go through a diagnostic countdown, displaying all 0 s through all 9 s. Once the display test is finished, the indicator auto zeroes. The upper display will show 0 and the lower display will be blank WEIGHINNG WEIGHING WITHOUT TARE If the 2 nd Scale option has been installed, select Scale #1 or Scale #2. Remove all weight from the platform. If the NET indicator is on, press 7 G / N to return to gross weight mode. If the 400B is not on 0 press FUNC 2 ZERO to zero the platform. Place item to be weighed on the platform. Read the weight in the upper display WEIGHING WITH TARE Tare weights may be entered into the indicator either through the keypad, (Keypad Tare) or by placing the item to be torn off on the platform and pressing TARE (Platform Tare) KEYPAD TARE FUNCTION If the 2 nd scale option is installed, select scale #1 or scale #2 and zero the platform. Using the numeric keypad, key in the known tare weight (numbers will show in lower display as they are entered.). Press TARE The NET arrow indicator will come on. If no weight is on the platform, the tare weight will show in the weight display as a negative number. If weight is already on the platform, the tare value will be subtracted from the weight displayed. 23

24 The net weight may now be read. Removing the net and tare weight from the platform, will cause the indicator to return to zero and the tare weight will be cleared. If the same tare weight is to be used more than once, the tare value may be stored by using the Fixed Tare (FT) button before the weight is removed. Press FUNC 8 FT Tare weight will remain fixed until cleared PLATFORM TARE If 2 nd Scale option is installed, select scale #1 or scale #2. Remove all weight from the platform. Clear any previous tare weights by pressing 0 TARE Place empty container to be torn off onto the platform and press TARE The NET arrow indicator will come on and the weight display will go to zero. Place items to be weighed into the container and read the net weight. Removing all weight from the platform will return the weight display to zero and clear the tare weight If the same tare weight is to be used more than once, the tare value may be stored by using the Fixed Tare (FT) button before the weight is removed. Press FUNC 8 FT Tare weight will remain fixed until cleared CLEARING TARE To clear the fixed, or stored tare weight press COUNTING MODE 0 TA RE 24

25 Counting on the 400B indicator may be done by one of two methods. Entering the weight of a single piece into the indicator via the keypad, or by placing a previously counted sample onto the platform and allowing the 400B to calculate the average piece weight. In addition the sampling may be done by either adding the sample to the platform or, in the case of a full container, removing it from the platform COUNTING BY ENTERING KEYPAD PIECE WEIGHT If the 2 nd Scale option is installed, select scale #1 or scale #2. Use the keypad to key in the weight of a single piece of the items to be counted, this will show in the lower display. Press APW Place items to be counted onto the platform. The count will be displayed on the lower display. To count items in a full container, place the full container onto the platform. Key in the weight of the container and press TARE. To count items into a container. Place empty container onto the platform, press TARE and pour or count items into the container COUNTING BY DETERMINING PIECE WEIGHT BY SAMPLE If 2 nd Scale option is installed, select scale #1 or scale #2. With no weight on the platform, clear all previous tare weights and zero the indicator. If a container will be used to hold the items being counted, place it on the platform and press: TARE Count out the items to be used in the sample (a quantity of 10 is typical). Place them into the container. Key in the sample quantity and press: SAMPLE The indicator will display the calculated average piece weight for several seconds and then the piece count will be displayed and the PIECES indicator arrow will be lit. The larger the sample used to calculate the average piece weight, the greater the accuracy of the calculation. The average piece weight calculation may be improved upon at this time by adding another sample, larger then the first, on top of the original. The lower display will show the new count. Press: SAMPLE The new average piece weight will be displayed momentarily, and then the display will return to 25

26 the count. The rest of the items to be counted may now be added to the platform. The calculated average piece weight may be displayed at any time by pressing the APW button. The piece weight may be cleared by pressing: 0 SAMPLE COUNTING OUT (REVERSE COUNTING) The Counting Out feature is used to count items as they are removed from a full container, also known as reverse counting. If 2 nd Scale option is installed, select scale #1 or scale #2. Be sure there is no weight on the platform. Clear all previous tare weights and zero the indicator. Place full container of parts on the platform. Press FUNC 3 C-OUT and then The indicator will perform an auto tare function and display will go to zero, with the NET arrow indicator lit. And the out arrow will come on. Remove and count the sample of parts from the container. Key in the sample quantity and press: SAMPLE The lower display will show the average piece weight for several seconds and then display the number of pieces removed. The display will now show the quantity of parts removed as items are taken from the container ACCUMULATING TOTALS The Pennsylvania Model 400B is capable of accumulating and storing both weight and count information ACCUMULATING WEIGHT AND COUNT With weight or parts to be accumulated on the platform, press: FUNC 4 ADD The 400B will add the weight and count information to the accumulator totals. 26

27 The display will momentarily show the accumulated totals, and then return to the normal operating mode. This process may be repeated as often as necessary. (limited only by the 6 digits on the display) Pressing the them. FUNC 5 TOTAL will display the totals without adding to Pressing the then clear them. FUNC 6 CL-TOT will momentarily display the totals and ACCUMULATING WITH COUNT OUT Establish a Count Out piece weight as described in section above. SAMPLE After the Press: FUNC 4 ADD button has been pressed and the sample quantity is displayed. The indicator will store the displayed count and re-tare the indicator. Each time and accumulation is performed, the indicator will momentarily display the total count and re-tare the indicator. The total accumulation may be viewed at any time by pressing: FUNC 5 TOTAL To clear the accumulated total press: FUNC 6 CL-TOT 27

Digital Weight Indicator Setup / Operation Manual

Digital Weight Indicator Setup / Operation Manual Load Cell Central follows a policy of continuous improvement and reserves the right to change specifications without notice. 2013 Load Cell Central Toll