Related Manuals for Cardinal 748P
Summary of Contents for Cardinal 748P
- Page 1 Cardinal Cardinal Scale Manufacturing Co. 748P WEIGHT INDICATING INSTRUMENT TECHNICAL/OPERATION MANUAL P.O. Box 151 Webb City, MO 64870 8539-M258-O1 Rev A PHONE: 417-673-4631 07/99 FAX: 417-673-5001 Printed in USA...
- Page 3 SPECIFICATIONS .......... 1 installation, calibration and operation of the Model INSTALLATION ..........1 748P Weight Indicating Instrument. It is intended Gimbal Mounting ........2 to be used as a guide to the operation of your Model Load Cell Connection ....... 2 748P Weight Indicating Instrument.
- Page 4 Non-automatic Weight Indicating Instrument Model Number 748P and 748L Serial Number EXXX01-XXX The undersigned hereby declares, on behalf of Cardinal Scale Manufacturing Company of Webb City, Missouri, that the above-referenced product, to which this declaration relates, is in conformity with the provisions of:...
- Page 5 SPECIFICATIONS Power Requirements ..115 VAC 60 Hz @ 0.07A (optional 230 VAC 50/60 Hz @ 0.03A) Enclosure Size ....NEMA 4X: 12 3/8"W x 7 1/4"H x 4"D Operating Environment .. Temperature: 14˚ to 104˚ F or -10˚ to +40˚ C Humidity: 90% non-condensing (maximum) Display......
- Page 6 The 748P gimbal may be mounted on a desktop or other smooth, flat, horizontal surface or may be mounted on a wall. Refer to figure no. 1 for a layout of wall-mounting bolts. If wall mounted, make certain that the mounting surface is strong enough to support the instrument.
- Page 7 ON key. See figure no. 4 for location. DOMESTIC/INTERNATIONAL JUMPER (J12 DOM/INT) Remove the jumper to comply with OIML requirements. The 748P will perform the following functions: 1. A “lamp test” will be performed on power-up.
- Page 8 Configure Serial Port. RECORD FORMAT The information transmitted from the printer output port depends on the operation mode of the 748P at the time the PRINT key is pressed as well as the print format entered. Refer to the CALIBRATION, PRINT and FUNCTION key section of this manual for additional information on the programming of the printer output format.
- Page 9 - weight with leading zeros space WEIGHT ON DEMAND If the bi-directional serial has not been setup for continuous output, the 748P will respond to a weight request (ENQ). The host device (computer) sends: (hex 05) The 748P will respond: Sxxxxxx^UU^M^CC^CR - if no decimal point in weight display.
- Page 10 PASSIVE END SERIAL INPUT COMMANDS The second serial port on the 748P is a bi-directional port and can both receive and transmit serial data. It is possible to control the operation of the 748P by transmitting serial commands to the instrument via this serial port.
- Page 11 Key Command Equivalent Keyboard Key - lb/kg Function - Toggle the 748P beyween Lb and Kg modes Serial Command Format - STX2CKsumETX Hex Format to Transmit - 2H 32H 33H 32H 3H Equivalent Computer or Terminal Keys to press - Ctrl B 2 3 2 Ctrl C...
- Page 12 HEX ChecKsum value. RESPONSES TO SERIAL COMMAND FUNCTIONS The 748P will respond to every serial command received. The format will serve to indicate the manner in which the serial command was processed. The general format for the response to a serial...
- Page 13 An optional relay assembly must be used to power AC powered devices. If your 748P is equipped with the optional feature, PWC relay assembly, be sure to follow the connection instructions under that section to prevent damage to your indicator.
- Page 14 8539-C062-0A SETUP AND CALIBRATION Your 748P indicator has been thoroughly tested and calibrated before being shipped to you. If you received the indicator attached to a scale, calibration is not necessary. If the 748P is being connected to a scale for the first time or recalibration is necessary for other reasons, proceed as indicated.
- Page 15 Pressing the PRINT key will advance to the Prt= prompt. CAUTION: When using the dual interval feature of the 748P, do not attempt to use a division value in the low range that is too small to provide adequate signal strength for stable operation of the instrument.
- Page 16 “C” NUMBERS Press ENTER to show the current value of the C1 number. If the 748P was calibrated previously and you recorded the four (4) “C” numbers, you may enter the value for C1. By entering the “C” numbers previously recorded, you can return to that calibration setting without having to use test weights.* If you wish to use test weights for calibration,...
- Page 17 FIRST CALIBRATION WEIGHT This is the first of two calibration weights: NO LOAD or CAL 1= ZERO and the TEST WEIGHTS or TEST LOAD. Press the ENTER key and the display will show 0 for NO LOAD. If the first calibration weight is to be ZERO or NO LOAD, press the ENTER key again.
- Page 18 POWER-UP ZERO FEATURE Press ENTER to show the current setting. Press 0 or 1 to PUO= enter the new setting and press ENTER to save it or to save the current setting. no = No Re-Zero on Power-Up YES = Automatic Re-Zero on Power-Up FILTERING Press ENTER to show the current setting.
- Page 19 PWC OUTPUT STATE: UNDER PRESET WEIGHT VALUE If 1 or more presets were entered, this prompt will appear Undrl= for each preset entered - the 1 position will indicate the PWC number. Press ENTER to show the current setting for the PWC output. on indicates that the PWC output is high (the PWC relay is on) at weights under or less than the preset weight and will switch to off (the PWC relay is off) at the preset weight and above.
- Page 20 YES, then press ENTER to continue. If you do not want to change or review the configuration of the serial port settings, press 0 for NO then press ENTER to continue. If you bypass this section, the 748P will advance to the PRINTER TAB SETTINGS. SERIAL PORT BAUD RATE Press ENTER to show the current baud rate.
- Page 21 PRINTER PORT PARITY Press ENTER to show the current parity setting. Press 0 PrtYP= through 2 to enter the new parity setting for the printer serial port. Then press ENTER to save it or to save the current setting. 0 = No Parity 1 = Odd Parity 2 = Even Parity PRINTER PORT DATA BITS...
- Page 22 TAB SETTING (General Format Information) The general format for the input is A = YY.XX where A is the character identifying the data printed, YY is the number of lines down and XX is the number of spaces to the right. Printed Data NOTE! Enter 00 in either location, YY or XX, to disable the data from printing.
- Page 23 GROSS WEIGHT PRINT LOCATION This display shows the current position for printing the G=4.01 gross weight. If you do not wish to change it, press the ENTER key, otherwise use the numeric keys and enter the desired value, then press the ENTER key. TARE WEIGHT PRINT LOCATION This display shows the current position for printing of the t=5.01...
- Page 24 Each number may be up to three (3) digits in length. By recording these numbers you will be able to return the 748P to its present calibration settings without using test weights simply by entering the four (4) “C” numbers. Note that your scale is used in a commercial application for buying or selling, you may not use the “C”...
- Page 25 SETUP AND CALIBRATION BEGIN 1. Press OFF key FLt= 2. Set the calibration switch to the CAL position filtering? 3. Press the ON/ZERO key dual dUAL interval? 0 = no filtering 3 = custom 1 = minimal filtering filtering 2 = moderate filtering yes = 1 key interval no = 0 key...
- Page 26 continued from previous page PrtYS= time bi-directional yy.xx location port parity page 00.00 = disable 0 = none 1 = odd 2 = even printed data date yy.xx bitSS= no. of location yy = line no. data bits xx = no. of 00.00 = disable spaces 7 or 8...
- Page 27 Tare Weight Net Weight To enable the Setup Review feature, first turn the 748P off by pressing the OFF key. Press and hold the GROSS key and press and release the ON/ZERO key. Release the GROSS key. The 748P will respond by showing the prompt for the selection of power-up zeroing (PUO=).
- Page 28 SETUP REVIEW 1. Press OFF key 2. Press and hold the F1 key 3. Press the ON/ZERO key PrtYS= bi-directional port parity 0 = none 1 = odd 2 = even PU0= re-zero on power up bitSS= no. of 0 = no 1 = yes data bits UnSt= 7 or 8...
- Page 29 Continued from previous page tAbS? page printed data yy = line no. Truck Storage = yes xx = no. of spaces Truck Storage = no Temporary Truck First Printing time yy.xx location time yy.xx location 00.00 = disable date yy.xx 00.00 = disable location date...
- Page 30 The Gross annunciator will be turned on. GROSS TARE KEY - There are two (2) TARE keys on the 748P. The top TARE key is used to momentarily display the stored tare value. The other TARE key is used to enter a new tare weight value.
- Page 31 If the weight is correct, press the ENTER key, otherwise use the numeric keys to enter the new value of stop weights and press the ENTER key. The 748P will now resume normal operation using the new start and stop weight values for the bar graph display.
- Page 32 1 to 8 depending on the number of preset weight comparators enabled during setup of the 748P. Press the ENTER key to display the currently stored value of preset weight. If the weight is correct, press the ENTER key to advance to the Trim value. If the weight is incorrect, use the numeric keys to enter the correct weight then press the ENTER key to save it and advance to the Trim value.
- Page 33 Storage or Digital Fill Control programs) the 748P will check the selected format to verify if it has been programmed. If it has not, the 748P will use print format 1 or, if format 1 is not available, format 0, the Print Tab Settings.
- Page 34 ACCUMULATORS To view the accumulators: 1. Press the ACCUM key. The display will show ACC= and flash the ACCUM annunciator. 2. Press the ID, PRESET, GROSS, or NET keys to select the type of accumulator to view. To view a single ID accumulator, press the ID key. The display will show id=. Input the ID number to be viewed (1 - 999,999) and press the ENTER key.
- Page 35 To print all Preset accumulators: 1. Press the ACCUM key. The display will show ACC= and flash the ACCUM annunciator. 2. Press the PRESET key. The indicator will display bin= and flash the BIN/PWC annunciator. 3. Press the PRINT key. 4.
- Page 36 Note that annunciators are turned on to indicate that the display is in the mode corresponding to the annunciator label and that the annunciators flash on and off to indicate that the 748P is waiting for an input from the keyboard for the mode indicated by the flashing annunciator.
- Page 37 Press ID. The ID annunciator will flash. Enter up to a six (6)-digit identification number and press the ENTER key. The 748P will store the current scale weight under this identification number and print a ticket. If the display shows Error, the identification number entered already exists and you must enter a different number.
- Page 38 3. A ticket containing the stored weight and accumulated weight along with the ID number will be printed. 4. If the ID number entered does not exist, the display will flash ErrorOr and the 748P will return to normal operation.
- Page 39 SINGLE SPEED, EIGHT BIN (presets) DIGITAL FILL CONTROL OPERATION This standard feature of the 748P fills one ingredient up to a Preset Target weight limit minus a stored Trim weight. It can control relays to fill from eight seperate bins but it can only fill one material at a time.
- Page 40 ERROR CODES The 748P is equipped with software that indicates when an error in the operation takes place. The following lists the error code displays supported by the 748P along with their meaning. Should you encounter an error display, please refer to this list for the cause.
- Page 41 Err3 Internal RAM failure. CORRECTIVE ACTION: consult your scale serviceman. Err r The RAM test has detected one or more failures in the external 748P RAM memory. CORRECTIVE ACTION: consult your scale serviceman. no bbr No battery-backed RAM. The time and date, zero dead load, DAC output calibration, and truck file data has been lost.
- Page 42 Included with the I/O option are eight (8) programmable inputs that may be used to remotely (up to 100 feet) initiate various functions within the 748P. These inputs are accessed via a terminal block on the back of the option board (see figure no. 9). Four (4) of the inputs are defined while the remaining four (4) are available for special applications and will vary from application to application.
- Page 43 4 mA. Adjust the OFFSET potentiometer on the I/O board to set the voltage output to zero and/or the current output to 4 milliamperes. On completion, press ENTER. Step 7 The 748P will return to Step 1. NOTE: Because of interaction between the OFFSET and SPAN adjustments, answer YES to Step 1 and repeat calibration until no further adjustment is necessary.
- Page 44 APPENDIX B - PART IDENTIFICATION figure no. 12 - enclosure rear panel Item Part No. Description Item Part No. Description 6013-0039 Hex nut #6-32 6800-1020 AC adapter 230 VAC/ 6021-0695 Screw pan head #6-32 x 18 VDC @ 800MA 1/2 PHMS 6980-1014 Power cord set 18/3 SVT 6021-1506...
- Page 45 APPENDIX C CALIBRATION SEAL INSTALLATION If your Model 748P Weight Indicating Instrument is used in a commercial application it must be tested and sealed by your local weights and measurements official. The 748P is designed to accept a lead and wire security seal to prevent unauthorized access to the calibration adjustments.
- Page 46 This addendum is to inform users of function changes to the PRESET and START/STOP keys and the operation of the Digital Fill Control feature. This addendum should be used in addition to the 748P Technical/Operation Manual. That manual should be consulted for information concerning the installation, setup, operation and service of this instrument.
- Page 47 SINGLE SPEED, EIGHT BIN (presets) DIGITAL FILL CONTROL OPERATION This standard feature of the 748P fills one ingredient up to a Preset Target weight limit minus a stored Trim weight. It can control relays to fill from eight separate bins but it can only fill one material at a time.
- Page 48 Again, only the display prompt was changed. New Serial Command - WEIGHT On Demand and Consecutive Number If the bi-directional serial has not been setup for continuous output, the 748P will respond to a request for weight and consecutive number by transmitting the computer formated weight followed by the "#"...
- Page 49 ENTER key to complete the ticket selection. Pressing the FUNCT key a second time (without entering a print format number) will abort the print operation and return the 748P to normal operation. Note that when a print format is selected, it will remain active until changed by the operator.
- Page 50 748P SOFTWARE ADDENDUM DIGITAL FILL CONTROL II October 9, 2000 Rev. 1.0 Cardinal Scale Manufacturing Co. P.O. Box 151 - 203 E. Daugherty Webb City, Missouri 64870 Phone: (417) 673-4631 - Fax: (417) 673-5001 http://www.cardinalscale.com...
- Page 51 Digital Fill Control II 748P Addendum INTRODUCTION This 748P software is a modified version of the 748P Digital Fill Control feature. It allows for the selection of Single Speed or two types of Two Speed operation. The three (3) methods of operation are:...
- Page 52 OPERATION SINGLE SPEED OPERATION This method of the 748P Digital Fill Control fills one ingredient up to a Preset Target weight limit minus a stored Trim weight. It controls a single relay (preset #1) to fill at one rate (fast). Note that this Digital Fill Control feature must have been set to a “1” during setup and calibration of the 748P to be operational .
- Page 53 Trim weight. It controls two relays (preset #1 and #2) to start the fill operation at a fast rate then to a slow rate before stopping. Note that this Digital Fill Control feature must have been set to a “2” during setup and calibration of the 748P to be operational.
- Page 54 Digital Fill Control II 748P Addendum OPERATION TWO SPEED, A B then B OPERATION (Cont.) 4. The display will change to tr=, the prompt for the stored Trim Weight. Press the ENTER key to show the current value. If the setting displayed is acceptable, press the ENTER key again to save it.
- Page 55 OPERATION TWO SPEED, A then B OPERATION This method of the 748P Digital Fill Control fills one ingredient up to a Preset Target weight limit minus a stored Trim weight. It controls two relays (preset #1 and #2) to start the fill operation at a one rate then change to a different rate before stopping.
- Page 56 Digital Fill Control II 748P Addendum OPERATION TWO SPEED, A then B OPERATION (Cont.) 10. At the slow cut-off point (SLO=), the B relay will be turned off and the two bar graph elements directly beneath Preset #2 will be turned off.
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