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Pennsylvania Scale Company 

 

Model 7500 Scales 

& 

7500/4 Indicator 

Operation 

& 

Calibration 

Manual 

 
 
 

Pennsylvania Scale Company 

1042 New Holland Avenue 

Lancaster PA 17601 

 

For online interactive tech support or more information on Pennsylvania 

Scale products, visit our website at 

www.pascale.com

 

 

Version 4.02 

Revised September 3, 2002

 

Содержание 7500 Series

Страница 1: ...r Operation Calibration Manual Pennsylvania Scale Company 1042 New Holland Avenue Lancaster PA 17601 For online interactive tech support or more information on Pennsylvania Scale products visit our website at www pascale com Version 4 02 Revised September 3 2002 ...

Страница 2: ...YS AND INDICATORS 10 PUSH BUTTON FUNCTIONS 10 WEIGHING WEIGHING WITHOUT TARE 11 WEIGHING WITH TARE 11 COUNTING COUNTING WITHOUT SAMPLE UPDATE 12 COUNTING WITH SAMPLE UPDATE 12 BI DIRECTIONAL SERIAL ASCII COMMUNICATIONS CAPABILITIES 14 RS 232 CONNECTOR PIN OUT 14 RS 232 COMMUNICATIONS PARAMETERS 15 COMMAND FORMATS 15 SCALE COMMANDS 16 SAMPLE COMPUTER PROGRAM 18 ERROR MESSAGE LIST 20 ...

Страница 3: ...D PRINT CODES 31 COMMAND FORMATS 34 RS 232 SCALE COMMANDS 35 RS 232 CONFIGURATION 36 RS 232 PRINT CODES 37 RS 232 SERIAL INTERFACE 38 CALIBRATION COMMANDS 39 CALIBRATION EXAMPLE 41 CAL COMMAND 42 7500 SERIES ADDENDUM SECTION 3 INTRODUCTION 44 7500 AC DC Operating Instructions 45 7500 Basis Weight Scale 47 7500M Money Manager Scale 48 ...

Страница 4: ...th a selectable output for communications with a computer or printer Ø Adjustable response time Ø Optional remote displays Ø Single board electronics for ease of servicing Ø Simple one button counting operation Ø Weight reading may be switched between two weighing units In addition the 7500 employs a digital calibration technique that allows calibration with the keypad or through the RS 232 Interf...

Страница 5: ...removed 3 Remove any options which may be packed with the scale 4 Carefully remove scale from the packaging by grasping both sides of the base NOTE DO NOT LIFT THE SCALE BY THE TOP SPIDER OR THE SUB PLATFORM ASSEMBLY 5 Place the scale on a stable level surface for operation 6 Adjust the corner leveling feet until the level bubble indicates the unit is level Firmly tighten hex jam nuts on the level...

Страница 6: ...idge resistance of 87 to 2000 ohms CONNECTING THE 7500 4 IN NON WASHDOWN APPLICATIONS All Pensylvania Scale non washdown weighing platforms are shipped with the proper mating connector and need only to be plugged into the round CPC style connector on the bottom of the indicator If your 7500 4 indicator is to be attached to a platform of a manufacture other that Pennsylvania a mating CPC connector ...

Страница 7: ...GREEN SIGNAL 1 WHITE SIGNAL 2 SHIELD SHIELD 3 4 BLACK SENSE 5 BLUE EXCITATION 6 RED SENSE 7 BROWN or ORANGE EXCITATION 8 A four wire load cell hook up may be used but is not recommended If a four wire hook up is necessary short the EXCITATION to the SENSE on the terminal block After attaching your 7600 4 Indicator to a platform it may be activated by plugging the line cord into any grounded 50 60 ...

Страница 8: ... 0 0 0 0 0 0 No Test Initializing system may take several seconds After the countdown is completed the scale performs an initial zeroing of the system No weight should be on the platform at this time NOTE Allow at least 20 minutes for initial warm up and load cell stabilization If you have the scale version of the 7600 it will have already been calibrated at the factory If your 7600 is an indicato...

Страница 9: ...e memory during programming Sample Update Piece weight accuracy may be improved after the initial sample by adding a quantity of parts to the platform less then the original sample When this is done the scale will recalculate the piece weight display the message UPdAtE for 2 seconds and then return to the counting mode Disable Count The counting mode may be turned off during programming allowing t...

Страница 10: ...h button Sets scale to zero functions as a CONTINUE switch during the self diagnostic check i e If the meter stops at a diagnostic check number The switch may be pressed to resume the count down SAMPLE SET Push Button When being used as a counting indicator this button enters the scale into the sampling mode UNITS Push button Pressing this button cycles the scale between the Primary weighing unit ...

Страница 11: ...display resolution are placed on the platform individually the weight may be zeroed off by the AZT feature Add light items to the platform simultaneously WEIGHING WITH TARE Ø Remove any items from the weighing platform and press ZERO Ø Press the UNITS button to select either the Primary or the Secondary weighing unit Associated indicator will be lit Ø Establish the tare weight by placing the conta...

Страница 12: ... onto the platform all at one time Ø Scale will display for about 2 seconds and then display the count The remainder of the parts to be counted may now be added to the scale at any time COUNTING WITH SAMPLE UPDATE Ø Remove all objects from the scale platform and press ZERO Ø If a container will be used to hold the parts being counted place the empty container onto the platform at this time Ø Press...

Страница 13: ...the new larger sample This may continue indefinitely during the counting process as long as the amount of parts added is less then the original sample The update feature is disabled when a quantity of parts greater then the original sample is added to the scale all at one time or the original sample is removed from the scale and the scale is allowed to return to zero Once the update has been disab...

Страница 14: ...14 ...

Страница 15: ...d 2 Transmission and alteration of specific data upon request from an external device 3 Alteration of the unit s operating mode upon request from an external device 4 Alteration of scale Calibration and RS 232 communications parameters and print formatting information Refer to the Programming and Calibration Section 2 of this manual for more information RS 232 PIN ASSIGNMENTS AND IMPLEMENTED FUNCT...

Страница 16: ...brate button for 5 seconds For information on how to reconfigure the RS 232 parameters refer to the Calibration and Programming Manual COMMAND FORMATS The Model 7500 can be controlled from an external device such as a computer or terminal by various commands each three letters long which represent related English phrases or words For example to tell the scale to zero type ZRO followed by a carriag...

Страница 17: ...ght MODEL 7500 RS 232 SCALE COMMANDS General Commands ATW Acquire Tare Weight CHK Initiate self diagnostics CHecK LCK LoCK out keypad PON Power ON POF Power OFf RES RESet clears tare weight and piece weight SCM Select Count Mode SSS Select Sample Size SWM Select Weight Mode UCK UnloCK keypad UNP UNit Primary UNS UNit Secondary ZRO ZeRO scale Commands Which Enter Information into the Unit IPW FLOAT...

Страница 18: ...d Configure Commands CAL CALibrate Same as pressing SW4 button CFC ConFigure Communication To set baud rate etc CFP ConFigure Print codes To enter print codes CLE CaLibration End To save calibration data CLP CaLibrate Primary To set up primary calibra tion data CLS CaLibrate Secondary To set up secondary cali bration data CLU CaLibration Unstable To set up print stable unstable CLW CaLibration Wei...

Страница 19: ...A Z 50 FALSE 0 TRUE NOT FALSE 60 KEY OFF CLS LOCATE 25 1 70 PRINT SPACE 20 Press Alt X to Exit Terminal Program 80 LOCATE 1 1 90 OPEN Com1 300 o 7 1 FOR RANDOM AS 1 Handshaking Enabled 100 OPEN test dta FOR OUTPUT AS 2 110 WHILE NOT QUIT 120 KEYBOARDINPUT INKEY 130 IF KEYBOARDINPUT CHR 0 CHR 45 THEN QUIT TRUE 140 IF KEYBOARDINPUT THEN PRINT 1 KEYBOARDINPUT 150 IF LOC 1 0 THEN 160 SCALEINPUT INPUT ...

Страница 20: ...ing 300 baud Odd parity 7 data bits and 1 stop bit These represent the default settings for the scale other entries may be used if the scale settings have been changed Valid entries for baud rate are 300 600 2400 4800 9600 or 19200 Valid entries for parity are N none E even or O odd Valid entries for data bits are 7 or 8 Valid entries for stop bits are 1 or 2 Com2 may be used if the scale is attac...

Страница 21: ...ror Err2 EEPROM Err 10 Count too large none Err 11 Keyboard Entry Error none Err 13 Negative number less then 99 999 will not fit on display Err 30 Illegal Zero none Err 31 Illegal Tare none Err 40 Load Cell error none Err 80 RS 232 Input Error none Err 81 RS 232 Input Error none Err 82 RS 232 Overflow none Err Cnf Config load error on startup Err 85 Reset to 300 baud Err xx Undefined Consult Fact...

Страница 22: ...ramming and calibration of the Pennsylvania Scale Model 7500 series The 7500 can be calibrated from the keypad or through the RS 232 Interface A digital calibration technique is employed that makes it very versatile when matching the indicator to the requirements of the application at hand ...

Страница 23: ...button twice will clear the display The correct data can then be entered INCREMENT INC This button is used to key numbers onto the display The value of the number increases by one each time the button is pressed Holding the button will engage automatic incrementing NOTE This switch will also act as a scroll push button used to make calibration selections where noted in the instructions For all oth...

Страница 24: ...he display will stop flashing and show 0 2 Press INC three more times or hold INC closed until a 3 appears 3 Press ADV The display will show 30 4 Press INC two times or hold INC closed until a 2 appears in the right most position The display will show 32 5 Press ADV The display will show 320 6 Press D P CLR for the decimal point The display will show 320 0 7 Press ENT to commit this value to the s...

Страница 25: ...t CAL Setup printer output format At any of the above steps Ø Press ENTER to access that category Ø Key in number of any other category and press ENTER to move to that category Ø Key in a 0 and press ENTER to leave calibration When the last calibration step of each category is reached the calibration automatically advances to the next category Calibration categories 50 60 70 and 80 may be accessed...

Страница 26: ...egin calibration 7500 4 Ø Remove the fastening screws holding the back plate of the indicator and carefully lift off the back plate Ø The main circuit board is mounted to this back plate Turn the plate and locate the calibration button on the main circuit board This button is labeled SW4 and CAL SEL CAUTION Since this must be done with the indicator turned on care MUST be taken not to come in cont...

Страница 27: ...ect the weighing units from the following chart with the INC button 1 lb 5 lb t 9 c 13 tons 2 kg 6 g 10 oz f 14 lb oz split display special order 3 g 7 dwt 11 ml only 4 oz t 8 oz 12 l Prt 25 Print Stable First Unstable Use the INC button to select whether the scale will respond to a print request only when stable StAbLE is to print the first stable non zero weight FirSt or any time a print is requ...

Страница 28: ... and press ENTER If a 1 2 capacity weight is unavailable place a substitute weight on the platform key in the amount of weight being used and press ENTER FUL 44 Full Capacity Apply a full capacity weight to the platform and press ENTER If a full capacity weight is unavailable place a substitute weight on the platform key in the amount of weight being used and press ENTER WARNING When using a subst...

Страница 29: ...ds Press ENTER default bAU 61 BAUD RATE Select a baud rate from the table below using the INC button to view the options press ENTER when you reach the desired baud rate 300 baud 4800 baud 600 baud 9600 baud 1200 baud 19200 baud 2400 baud LEn 62 WORD LENGTH Select the word length from the table below using the INC button to view the options press ENTER when you reach the desired word length 7 bits...

Страница 30: ...appear if scale has the time and date option installed StF 71 Select type of clock 0 Time and date OK skip to SLP 74 1 24 hour clock 2 12 hour clock currently AM 3 12 hour clock currently PM td1 72 Enter the current time as HHMMSS Based on the type of clock selected in step 71 Clock will begin with the pressing of the ENTER button CAL 70 Setting of time and date cont d td2 73 Enter the current dat...

Страница 31: ... print slot If a print code is entered that is not legal the message Illegal Print Code will be sent out with the Formatted Print When you are finished entering data to construct the formatted print 99 is entered to mark the end of print formatting NOTE The code 0 allows you to exit the building or examining of a formatted print at any time without destroying or altering print codes already entere...

Страница 32: ...32 TARE 1 000 LB ...

Страница 33: ...642 Print Commands 14 Prologue 15 Epilogue Print Data Only Formatted Print Codes 20 Print Current gross weight 21 Print Current tare weight 22 Print Current net weight 23 Print Current Count 24 Print Piece Weight 25 Print Sample Size Print Prefix Data and Suffix Formatted Print Codes 30 Print Gross weight prefix data and suffix 31 Print Tare weight prefix data and suffix 32 Print Net weight prefix...

Страница 34: ...nstable non zero weight G Gross secondary unstable zero weight H OL UL gross primary stable J OL UL gross primary unstable L OL UL gross secondary stable N OL UL gross secondary unstable P Net primary stable non zero weight Q Net primary stable zero weight R Net primary unstable non zero weight S Net primary unstable zero weight T Net secondary stable non zero weight U Net secondary stable zero we...

Страница 35: ...ous output compatible with other Pennsylvania Scales 54 Select Leading Zeros 59 No Operation Print Special ASCII Characters Formatted Print Codes 60 Print an ASCII space SP 61 Print an ASCII horizontal tab HT 62 Print an ASCII line feed LF 63 Print an ASCII start of header SOH 64 Print an ASCII carriage return CR 65 Print an ASCII carriage return and line feed CR LF 66 Print an ASCII form feed FF ...

Страница 36: ...s buffer and data will be lost Be sure to send commands to the scale at a rate which does not exceed 125 characters every 500 ms The basic command formats are 1 add cmd cr 2 add cmd flt cr Where cmd is a three letter command add is a scale address number 0 255 cr represents a carriage return and flt is mixed number the brackets are used to indicate an optional part of the command The following are...

Страница 37: ...ion into the Unit IPW FLOATING POINT NUMBER Input Piece Weight ITW FLOATING POINT NUMBER Input Tare Weight Commands Which Request Information SAI Send All Information All setup information SAO Send Abbreviated Output Same as SRP SCI Send Configuration Information SCO Send COunt SDT Send DaTe Time and Date option only SGW Send Gross Weight SMI Send Metrological Information SNW Send Net Weight SPC S...

Страница 38: ...rated by spaces The entire command string must be terminated with a carriage return CONFIGURATION OF RS 232 COMMUNICATION PARAMETERS The unit leaves the factory with the following default communication settings BAUD 300 WORD LENGTH 7 bits STOP BITS 1 PARITY ODD These settings may be changed using the local or remote display keyboard as described above or RS 232 Interface commands If the RS 232 Int...

Страница 39: ... Interface commands When communication with the unit has been established the CFP ConFigure Print code command may be used as follows COMMAND FORMAT DESCRIPTION CFP CFP 30 65 31 99 ENT Send gross weight CR LF Send the net weight End Up to 21 print codes can be entered Refer to the Formatted Print Code List for additional print codes NOTE Spaces must separate the settings and a 99 must be the final...

Страница 40: ...ther printing is allowed when unit is stable or not In order to change these parameters the internal calibration switch SW4 must be pressed Refer to page 5 for instructions on accessing the calibration switch To begin calibration enter any of the Calibration commands The Model 7X00 Series Product will prompt to the terminal one of the following messages RESPONSE TO TERMINAL parenthesis indicate sc...

Страница 41: ... Enters the Calibration Factors for the Primary weighing mode The example shown selects 10 0 Full scale Capacity 0 002 Resolution 5 0 Zero Range 1 Units code LBS 2 CLU CaLibration Print when Stable or Unstable COMMAND CLU 0 ENT Selects print when stable or unstable Options 0 Selects print when NOT stable 1 Selects print when Stable Required for NTEP 3 CLW CaLibration Weight COMMAND CLW 3 ENT Enter...

Страница 42: ...minal or scale after each 0 000 lb LoAd 0 000 5 000 lb LoAd 5 000 Current weighing unit 10 000 lb LoAd 10 000 selected will be displayed 0 000 lb LoAd 0 000 4 CLS CaLibrate Secondary COMMAND CLS 2 0 002 Sets secondary weighing unit to KG and resolution to 002 KG Refer to page 6 for a chart showing possible weighing unit entries 5 CLM CaLibrate Modes COMMAND CLM 0 0 1 ENT Turns off Canadian specs 0...

Страница 43: ...ration commands might be CLP 10 0 0 002 5 0 1 Enters the primary calibration factors CLU 0 Selects print while Unstable for non NTEP CLW 3 Enters the weight calibration mode CLS 2 0 001 Enters the secondary calibration factors CLE Ends the calibration process stores results See the individual command descriptions for complete command and response information ...

Страница 44: ...er calibration mode has been entered The parenthesis indicates the current entry in the scale Words inside of will not appear on the screen but indicate possible entries The list below uses the standard entries for a 25 LB capacity scale as an example Calibration Step 20 20 21 Capacity 25 000 25 000 22 Primary Resolution 0 005 0 005 Enter display resolution 23 Zero Range 25 000 25 000 Zero to full...

Страница 45: ...ion Step 70 70 71 Set Time Flag 1 1 Selections on page 7 T D option 72 Set Time 135056 135056 Enter time HHMMSS T D Option 73 Set Date 11894 110894 EnterdateMMDDYY T DOption 74 Sleep Time 0 0 0 Sleep time in minutes 5 to 12 Configuration Step 80 80 81 Print Slot 65 65 Print codes on p 10 82 Print Slot 30 30 Print codes on p 10 83 Print Slot 65 65 Print codes on p 10 84 Print Slot 99 99 Print codes...

Страница 46: ...ent software program options for special application use This addendum to the manual provides instructions on operational differences between these scales and the standard scale The addendum instructions cover only the differences in operation and are meant to be used in conjunction with the rest of this manual ...

Страница 47: ...wer supply line cord packed separately that needs to be removed from the box up to Step 8 activating the scale To operate the scale on AC 1 Remove the platform and stand the scale on its right side This will allow access to the line cord socket on the bottom of the scale 2 Plug the DIN type connector on the line cord into the mating connector on the scale and return the scale to an upright positio...

Страница 48: ...o a grounded AC outlet The battery will be charging as long as the scale is plugged in The scale does not have to be turned on to charge the battery It is strongly recommended the scale battery be recharged after every use NOTICE The battery used in the 7XOO series AC DC scales is a sealed lead acid Gel Cell type battery It is important that this type of battery not be allowed to go into a deep di...

Страница 49: ...y pressing the SAMPLE SET button and adding the sample weight pressing the UNITS switch after displaying the third basis weight will display the count Press the UNITS switch again to return to normal weight display The multipliers and and the display resolutions for the basis weight are programmable Using Calibration steps 31 32 and 33 the user may specify nay multiplier from 1 to 10000 and any di...

Страница 50: ...n the scale Enter calibration and set options as desired except for cal steps 50 54 It is necessary to skip this block as the sampling will over ride the default piece weights When calibration gets to step 50 enter 0 to end calibration or 60 to skip coin configuration and continue with calibration The value and piece weights for the coins may be calibrated using Calibration Steps 50 54 Refer to th...

Страница 51: ...hts and values Quarter Dime Nickel Penny Unplug the scale and press the internal calibration button while plugging the scale back in NOTE This will also restore the default RS 232 setup 300 baud 7 data bits 1 stop bit odd parity and print formats The following RS 232 Interface Commands have been added or modified for this application SCM Select Coin Mode Same as pressing the COIN button on the key...

Страница 52: ...ale is in the Coin mode and a prefix indicating the current Coin 32 Send Net Weight with prefix and suffix Modified to send the Net value of the coins selected on the platform if the scale is in the Coin mode and a prefix indicating the current Coin 33 Send Count with prefix and suffix Modified to include a suffix indicating the current Coin selected 34 Send Piece Weight with prefix and suffix Mod...

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