Sterling Scale XC780 Скачать руководство пользователя страница 15 | Manualshive

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OPERATION

General Operation:

1) Switch the On/Off switch to on. The On/Off switch is

located on the back of the XC780 enclosure.

2) The XC780 will run a display check(all segments on), an

internal self test, and display gross weight in the units

set in parameters. If the Time/Date option is installed,

the XC780 will return to the same mode it was in when

power was interrupted. Allow five minutes to warm up for

maximum precision.

SINGLE

SCALE

OPERATION

COUNTING OPERATION:

Fixed Sample Operation:

1) Place the fixed number of sample parts on the scale

platform and press the COUNT key. The display will show

the sample count.

2) Place the product to be counted on the scale platform.

The display will show the total piece count.

Press the RESET key and repeat steps one and two to count a

different part.

Variable Sample Operation:

1) Place the sample parts on the scale platform and enter the

number of samples used via the keyboard.

2) Press the COUNT key. The display will show the sample

count.

3) Place the product to be counted on the scale platform.

The display will show the total piece count.

ENTER TARE WEIGHT:

Entering tare weight of full container:

1) Place a container of parts on the scale platform

2) Enter the weight of the container via the keyboard and

press the TARE key. The weight of the container is

subtracted.

Taring an empty container:

1) Place an empty container on the scale platform

2) Press the SHIFT key and then press the TARE key. The

weight of the container is subtracted.

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Содержание XC780

Страница 1: ...STERLING SCALE XC780 HIGH ACCURACY PIECE COUNTER OPERATION MANUAL ...

Страница 2: ...rev V1 1 07 02 91 ...

Страница 3: ...peration Single Scale Operation 10 Multiple Scale Operation 11 Standard Features Operation 11 General Operation 14 Tips for Piece Counting 15 Chapter 3 Parameter Setup 17 Parameter List 19 Calibration Quick Calibration 31 Calibration Setup 34 Static Prevention 38 Chapter 4 Glossary of Terms 44 Specifications 46 Warranty 47 ...

Страница 4: ...Sterling Scale reserves the right to make any refinements or changes without notice ...

Страница 5: ...able Ticket Format Operator Programmable Output Format Programmable RS 232 output Available Options include Additional scale inputs Battery operation Barcode reader Barcode printer Ticket printer Tape printer Time date with battery memory backup 20 ma current loop Additional RS 232 RS 485 ports Memory Upgrades Custom only 0 10VDC 4 20ma analog output Wall mount enclosure External relays Over Under...

Страница 6: ...2 Counting ...

Страница 7: ...be empty The XC780 is shipped with the platter assembly disconnected to avoid load cell damage during shipping The assembly is quite simple WARNING DO NOT APPLY EXCESSIVE DOWNWARD UPWARD OR TWIST PRESSURE ON THE LOAD CELL WHEN WORKING WITH THE PLATTER ASSEMBLY THIS COULD CAUSE LOAD CELL DAMAGE Installation 1 Set the XC780 on a flat level surface 2 If the built in scale is used no load cell wiring ...

Страница 8: ...the cell when the screws are loose Figure 2 6 Mount the platter to the platter support assembly by lining up the pins on the bottom of the platter with the grommets on the platter support The platter should slide into place See figure 3 7 Connect any external printer or computer cables required 8 Connect the AC DC adaptor to the input plug in the back of the XC780 The clip supplied in the hardware...

Страница 9: ... unit should be allowed to warm up for five minutes Note Each XC780 is pre calibrated at the factory for the built in scale If an external scale base is connected or the unit displays incorrect weight please consult the chapter on Calibration Setup Note If the XC780 is to be used in a potentially high static area such as plastic filling or counting special precautions MUST be taken See the section...

Страница 10: ...simply enter the tare value on the numeric keypad and press the TARE key The XC780 switches to net weight mode stores the tare weight and displays the net weight The TARE key when pressed without first entering data is used to display the current tare value The tare may be cleared by entering 0 then pressing the TARE key push to TARE The PUSH to TARE key is used for auto tare operation For auto ta...

Страница 11: ...e APW key The XC780 will store the entered APW as the current APW and switch to the count mode Once in the count mode pressing the APW key without entering data displays the currently entered Average Piece Weight STORE The STORE key is used to enter ID APW and tare information into the XC780 memory for recall later The STORE key is operated by first pressing the SHIFT key then the APW STORE key Af...

Страница 12: ...tity to the total stored quantity Press the SHIFT key followed by the 7 ACCUM key The accumulated value is stored by ID See the Accumulator Operation section for details ACCUM The ACCUM key subtracts the current quantity from the total stored quantity Press the SHIFT key followed by the 8 ACCUM key The accumulated value is stored by ID See the Accumulator Operation section for details MEMORY The M...

Страница 13: ...1 key to display the minimum percent accuracy If the value is too low re sample using more parts See Piece Count Operation for more details F2 Reserved for future use ANNUNCIATOR LIGHTS kg The kg lamp is on when the XC780 is displaying weight in kilograms kg g The g lamp is on when the XC780 is displaying weight in grams gr lb The lb lamp is on when the XC780 is displaying weight in pounds lb pcs ...

Страница 14: ...on of center zero TARE The TARE light comes on when any positive tare weight is in XC780 memory SCALE 1 4 The SCALE 1 2 3 4 lights indicate which scale is currently being displayed COUNT The COUNT light comes on when the XC780 is in the piece count mode ID The ID light comes on when a non zero ID is made the current ID in XC780 memory SHIFT The SHIFT light comes on when the shift key is pressed to...

Страница 15: ... to be counted on the scale platform The display will show the total piece count Press the RESET key and repeat steps one and two to count a different part Variable Sample Operation 1 Place the sample parts on the scale platform and enter the number of samples used via the keyboard 2 Press the COUNT key The display will show the sample count 3 Place the product to be counted on the scale platform ...

Страница 16: ... COUNT key The display will show the sample count 3 Place the product to be counted on the scale platform The display will show the total piece count ENTER TARE WEIGHT Entering tare weight of full container 1 Place a container of parts on the scale platform 2 Press the SCALE SELECT key to select the desired platform 3 Enter the weight of the container via the keyboard and press the TARE key The we...

Страница 17: ...y The stored Average Piece Weight will be displayed Reviewing a stored tare value 1 Enter the ID number of the part on the keyboard and press the ID key 2 Press the TARE key The stored TARE will be displayed Clearing an average piece weight tare and accumulated quantity from memory 1 Enter the ID number of the part on the keyboard and press the ID key 2 Press the SHIFT key and then the RESET CLEAR...

Страница 18: ... to the COUNT mode Clear Accumulated Quantity 1 Enter the ID number of the part on the keyboard and press the ID key 2 Press the SHIFT key and then the 9 MEMORY key to display the total accumulated quantity 3 Press the SHIFT key and then the RESET CLEAR key to clear the quantity to zero COMPARATOR SETPOINT OPERATION Comparator UNDER Displayed value OVER Setpoints SP 1 SP 2 Displayed value Enter Un...

Страница 19: ... While in the COUNT mode press the RESET key to return the scale to the weight mode 3 While in the weight mode press the SHIFT key and then the 6 NET key to switch to the net weight mode Display count 1 While in the weight mode press the APW key 2 The APW of the last part counted is recalled The scale switches to COUNT mode and displays the piece count Sample guide 1 Count parts using any method 2...

Страница 20: ...16 Select a new scale 1 Press the SCALE SELECT key to switch to the next scale This button only works if more than one scale is selected in calibration setup ...

Страница 21: ...Using this feature allows the operator to easily get the best samples and the most accurate piece counts See Sample Enhancement in the Parameter Setup section for details 6 Use a low motion band The XC780 waits until motion clears before performing the sample For maximum accuracy use the lowest motion band possible for your application 7 Use push to TARE SHIFT TARE when counting small parts or usi...

Страница 22: ...return to the count mode by simply pressing the APW key The XC780 remembers the last APW used and recalls that value when the APW key is pressed while in the weight mode 12 While in the count mode press the SHIFT GROSS or SHIFT NET keys to temporarily display the weight ...

Страница 23: ...ctly to the parameter you wish to modify By pushing the COUNT key at any time in parameter setup the SEtUP message appears The number following the message indicates the number of the current parameter By entering the number of the desired parameter and pressing the PRINT key the operator can jump directly to that parameter SHIFT CLEAR The SHIFT CLEAR key is used to return the value of the paramet...

Страница 24: ...fy on the keypad and press the PRINT key You may also step through all parameters by pressing the PRINT key repeatedly Step 3 The parameter symbol and the current parameter value will be displayed Select from the options available for the parameter by pressing the SCALE SELECT key till the required value is displayed Step 4 Press the PRINT key to enter the desired symbol or value and go to the nex...

Страница 25: ...f span Quick calibration is used to re calibrate a previously calibrated scale during service maintenance or routine checkup Fine span adjustment may be used to correct small span errors due to load cell drift or calibration errors without performing a complete re calibration Most calibration can be performed using quick calibration Select F If not calibrating or adjusting scale t If doing quick c...

Страница 26: ... Medium averaging and displayed updates HI For High averaging more stable and slower display updates slower response 06 unit lb Unit of Weight Selects the unit of weight for display and data output Select lb If using pounds for unit of weight Kg If using Kilograms for unit of weight gr If using grams for unit of weight 07 BAnd 0 02 Motion Band Width Selects the amount of scale motion in fractions ...

Страница 27: ...ficantly improve the accuracy of part counts by re calculating the average piece weight of the sample quantity to the full internal resolution of the XC780 The XC780 will recompute the APW as pieces are added if 1 Sample enhancement is enabled 2 The XC780 is in the count mode 3 The sample weight is less than 4 of full scale capacity 4 The scale is not in motion 5 The last addition to sample quanti...

Страница 28: ... 13 SPA oFF Setpoint Activation State Sets the normal setpoint comparator output state to normally off relay open or normally on relay closed Select oFF If output is normally oFF open on If output is normally on closed 14 SPD qty Setpoint Data Type Sets setpoint comparator actuation for quantity net weight or gross weight Select qty Output will actuate on quantity data nEt Output will actuate on n...

Страница 29: ... when the XC780 is in weigh or count mode regardless of scale weight or stability StbL If serial data output occurs continuously when the XC780 is in weigh or count mode ONLY when the scale weight is stable Auto If serial data output is to occur ONCE when the scale net weight exceeds 0 04 of capacity and the scale weight is stable no motion The scale gross weight must return to near zero before th...

Страница 30: ...ol t If using ready busy flow control 23 FMt Std RS 232C Data Output Format Selects the format used for serial RS 232 data output Select Std If using standard printer format See the RS 232C Output Format section in the XC780 Technical manual for an example of the standard printer output format This format requires no operator programming CuSt If using the customized printer format feature Once sel...

Страница 31: ...ering or modifying the station number t If entering or modifying the station number After selecting t rue proceed with the following steps 1 The XC780 will prompt with Sttn XX where XX is the current station number 2 Enter the desired number 0 99 on the numeric keypad If 0 is entered the station number will not be output from the RS 232C port If using the XC780 in a multi drop network each XC780 o...

Страница 32: ...current transaction serial number 2 Enter the desired number 0 99999 on the numeric keypad Enter 0 to reset the serial number 3 Press the print key to save the new transaction serial number in non volatile memory ...

Страница 33: ...5 Digital Averaging Digital averaging is used to smooth out the displayed reading The XC780 is a very sensitive instrument which can be affected by vibration or air currents which cannot be felt be the operator Increasing digital averaging will stabilize the weight reading if mechanical vibration is present Decreasing digital averaging will allow the XC780 to respond faster to changes in load Use ...

Страница 34: ...arameter to EnhAnC t Step 2 Count the part See piece count operation Step 3 Add parts one at a time Every three pieces the APW will update Keep adding until the required accuracy is achieved Use the Sample Guide SHIFT F1 to display the percent accuracy If while using sample enhancement the count shows inaccurate remove parts till the display is accurate and press the COUNT key to update the APW Th...

Страница 35: ...e counted by simply entering the ID number Use APW storage if the weight of the parts to be counted are very repeatable from lot to lot Use this mode to count the same part again and again without sampling each time Do not use this mode if the Average Piece Weight of the part may vary from lot to lot When both ID APW and ID tare are not selected only the accumulated quantity is stored 17 ID Memory...

Страница 36: ...ickets select the FMt Std format A description of the standard ticket format is given in the Printer Format section The CUSt om ticket and SPeC iaL operator programmable output formats are used to totally customize the output for printer or computer use These formats are described in detail in the Operator Programmable Custom Ticket Format and Operator Programmable Special Output Format sections o...

Страница 37: ...put the serial number is automatically incremented by one to allow tracking of parts or tickets To enter the serial number Step 1 Select Serno t and press the PRINT key The current serial number will be displayed blank if no serial number entered Step 2 Enter the new Serial number starting point on the numeric keypad Step 3 Press the PRINT key to lock in the new serial number ...

Страница 38: ... used to return the value of the item to its default setting RESET The RESET key is used to exit calibration The J3 jumper on the XC780 logic board is used to lock out entry into the parameter and calibration setup modes Placing a jumper plug on J3 will lock out entry into the setup modes removing the jumper enables access J3 location drawing Some of the messages on the main XC780 display during c...

Страница 39: ...ity is required for accurate calibration Step 8 When the SPAn 0 0 message is displayed calibration is complete Press the RESET key to exit Quick Calibration NOTE If the Adj GAin message is displayed at the end of quick cal it probably means the calibration weight was entered incorrectly Check the weight and units and try Quick Calibration again If the Adj GAin message appears again full calibratio...

Страница 40: ...rors with fine span digital adjust can actually induce larger errors To enter a Fine Span digital adjust correction Step 1 Enter Quick Calibration mode see Quick Calibration and press the PRINT key until SPAN 0 0 is displayed for the scale you wish to modify Step 2 Press the SCALE SELECT key until the required adjustment is displayed Step 3 Press PRINT to enter the value Repeat procedure if necess...

Страница 41: ... scale capacity for scale 1 if necessary The capacity can be entered directly on the keypad or selected using the SCALE SELECT key Press the PRINT key Step 6 The optimum graduation size for the capacity selected in step 3 will automatically be selected and displayed i e 1grd 01 Select a new graduation size if desired Greater than 50 000 counts will not be allowed Press the PRINT key The graduation...

Страница 42: ... finding the optimum calibration point the Adj GAIn message will be displayed This message indicates that either the load cell platform has less than 1mV V output or there is a connection problem Connecting the jumpers J1 and J4 on the analog board will correct for a low output load cell Connect the jumpers and re calibrate NOTE At least 25 of full scale capacity is required for accurate calibrati...

Страница 43: ... be entered 1grd 1grd 01 1st Scale Graduation Size Selects the graduation size for scale 1 The optimum graduation size for the full scale capacity entered for 1st Scale Capacity will be automatically displayed 10 000 to 15 000 displayed graduations Other values may be selected but the XC780 will reject any entered data requiring greater than 50 000 displayed graduations The graduation size is the ...

Страница 44: ...The XC780 can be calibrated with one unit type and display another Select Lb Calibration weights are in pounds lb Kg Calibration weights are in Kilograms kg gr Calibration weights are in grams gr 1CALib 1CALib F Calibrate 1st scale Selects either to calibrate scale 1 or proceed to the next item Select t rue to start calibration of scale 1 F alse to not calibrate scale 1 and proceed to the next ite...

Страница 45: ...Discharge ESD occurs when this developed charge finds a quick and easy path to discharge For example when you walk across a rug in leather shoes the triboelectric effect on a dry day the motion of your shoes against the rug develops an electrical charge faster than it can be dissipated dissipated either through the air or your feet Now when you reach for a door knob the built up charge discovers a...

Страница 46: ...ood products on the market to clean up your ac power The XC780 has been tested to withstand 6000 Volts of standard line transient which should be more than enough for the average user However some industrial locations may generate larger non standard transients and lightning is always a possibility so certain applications may still require transient suppression 1 Surge Suppressors These devices ab...

Страница 47: ...xt to the instrument A support beam or copper pipe which go to earth nearby will also work Be sure the connection at both the XC780 and ground are solid tight connections to bare metal Scrape away the paint if you have to If an external scale platform is being used its platter or deck plate may also be connected to earth ground to stop static charges from traveling up the load cell lines into the ...

Страница 48: ...the optimum calibration point the CAL Error message will be displayed This message indicates that a load cell connection problem exists Check connections and re calibrate Adj gAIn Adjust gain If the Step2 message gets all the way to zero without finding the optimum calibration point the Adj GAIn message will be displayed This message indicates that either the load cell platform has less than 1mV V...

Страница 49: ...ead Error Consult factory representative if this error occurs rA Err RAM Memory Error Consult factory representative if this error occurs Error __ Communications Error Check use of Ready Busy line and consult factory representative ...

Страница 50: ...xpansion BUS activated 1 2 Expansion BUS de activated J2 Interrupt 1 2 Expansion BUS interrupt enabled Control 2 3 Misc interface interrupt enabled Analog board 780 003 J1 External no jumper Use external sense sense 1 2 No external sense J4 External no jumper Use external sense sense 1 2 No external sense J2 3 Gain Adjust no jumper 1 mV V to 3mV V input both on 1 2 5mV V to 1 5mV V input ...

Страница 51: ... between them GO Digital Averaging The process of averaging multiple readings and displaying the result EMI Electro Magnetic Interference Interference from electro mechanical waves Excitation Voltage The voltage used to drive the load cell output Gain The amount of amplification used to increase the load cell signal to a usable amount Gross Weight The total weight on the scale g grams 1 gram 00220...

Страница 52: ...the Average Piece Weight with a larger sample size to achieve a more accurate Average Piece Weight Sample Guide Display the percent accuracy expected for the current sample Sense A connection used to correct for inaccuracies caused by losses in long cables Serial Communication The transmission of data in a string format Setpoint An output triggered when the displayed scale value exceeds the entere...

Страница 53: ...000 000 Display Counts 10 000 recommended 50 000 allowed Display update 10 per second min Input sensitivity 0 5 mV V min 5 uV per count Linearity 0 01 of full scale Overload Capacity 105 full scale Load Cell excitation 10 VDC 250 ma max nine 350 ohm load cells max Calibration Method full digital calibration Range 1mV V to 3mV V uncompensated 5mV V to 1 5 mV V compensated Adjustments Fine span digi...

Страница 54: ... or modification has detrimentally effected the performance or reliability of the product 2 The XC780 has been improperly installed or not setup in accordance with the instruction provided herein 3 The XC780 has been mishandled abused or in the judgement of Sterling Scale has been exposed to an environment for which the product was not designed This warranty constitutes Sterling Scale s exclusive ...

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