Loadrite LR810 Operating Manual

Summary of LR810

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    Lr810 weighing system operating manual.

  • Page 2: Lr810

    Lr810 distributed worldwide by: loadrite ltd 93 first avenue p.O. Box 13-115, tauranga, new zealand facsimile: intl-64-7-5776034 phone: intl-64-7-5782820

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    For: loadrite model lr 810 software # 60042. Version: 3.20 issue date: december, 1996 designed and manufactured by: a member of the loadrite group of companies actronic new zealand ltd reserves the right to make changes to the loadrite range of products without prior notice and assumes no liability ...

  • Page 5: Contents

    I contents 1 about this manual................................................................. 1 2 the loadrite lr810 weighing system ................................ 2 main parts of the lr810 system.......................................................... 2 weight measurement........................

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    Ii clearing long totals .......................................................................... 30 menu map .......................................................................................... 32 16 using the ld640 data logger ........................................... 33 displays ...........

  • Page 7: 1  About This Manual

    1 about this manual 1 1 about this manual this manual describes the day to day operation of the loadrite lr810 weighing system. Other manuals for information on ... See... Installation of the system installation manual calibration of the system setup and calibration manual printing weight data lp750...

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    2 the loadrite lr810 weighing system 2 2 the loadrite lr810 weighing system the loadrite lr810 weighing system measures the weight of loads lifted by front end loaders, log loaders, fork lift trucks and similar machines which use hydraulic rams to lift the load. The heart of the system is the lr810 ...

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    2 the loadrite lr810 weighing system 3 weight measurement the lr810 measures the hydraulic pressure in the lift cylinders as the machine raises the load. The indicator converts pressure into a weight reading and displays the value. An electronic trigger device mounted on the lift arms ensures that t...

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    2 the loadrite lr810 weighing system 4 indicator lights the lr810 provides three indicator lights (positioned between the two displays). Trig light this light comes on when the lifting arms have passed the trigger point. This indicates that the displays now show the currently lifted weight. Interloc...

  • Page 11: 3  Getting Started

    3 getting started 5 3 getting started switching on the on / off switch is on the right hand side of the casing, just below the rubber mounting bush. On power up, the upper display shows a sequence of check messages and then the ready message (or warm up message - see below). The lower display shows ...

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    3 getting started 6 in total mode the lr810 displays each weight lifted and the running total as you add weights. In target mode the lr810 displays each weight lifted and the amount to go to reach a specified target. Details of total mode and target mode are given on pages 9 and 11 respectively . Mu...

  • Page 13: 4  Weighing - Overview

    4 weighing - overview 7 4 weighing - overview when ready to weigh, the lr810 displays ready on the top display. There may be other information on the top display, depending on the mode of operation. The total (or target) weight is shown on the second line of the top display and on the large bottom d...

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    4 weighing - overview 8 these functions are described seperately in this manual. If you don’t press a key, the lr810 beeps and prompts you to take action. If after a further delay, you do not press a key, the lr810 discards the just measured weight and goes back to the ready state. Multiple scales i...

  • Page 15: 5  Total Mode

    5 total mode 9 5 total mode in total mode the lr810 displays each weight lifted and the running total as you add weights. Total mode provides two running totals for each product: • short total • long total • when a load is added, both the short and long totals are updated. The short and long totals ...

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    5 total mode 10 long total the long total is typically used for accumulating the weights lifted over a longer period; for example a shift or a day. >>>> to display the long total • press long . The long total is displayed while the long key is held down and for 3 seconds after it is released. >>>> t...

  • Page 17: 6  Target Mode

    6 target mode 11 6 target mode target mode allows you to enter a target weight and then load up to that weight in a series of lifts. Each time you lift and add a weight, the lr810 displays the remaining amount to reach the target. Target mode is used typically when loading a truck to its optimum pay...

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    6 target mode 12 2. The lr810 returns to the ready state with the new “to load” amount displayed. At this stage you can press targ to enter a new target weight or continue weighing with the current target weight. Target mode notes • if you have lifted and added any weights, you must clear the totals...

  • Page 19: 7  Product Names

    7 product names 13 7 product names identification/tracking the lr810 allows you to weigh and store separate short and long totals for up to sixteen different products. The number of products and names for them can be entered when the lr810 is installed. When used with an ld640 data logger, the lr810...

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    7 product names 14 >>>> to select a different product 1. Press prod . 2. Enter the number or press ≤ or to display the product required. 3. When the required product is displayed, press ent . The lr810 displays the product name corresponding to the number you entered and is ready to weigh. Notes • i...

  • Page 21: 8  Zeroing The Lr810

    8 zeroing the lr810 15 8 zeroing the lr810 when you raise an empty bucket past the trigger point, the indicator should display zero. However, due to build up of material in the bucket or changes in the oil temperature, a small zero error may occur. Zero error affects the accuracy of lifted weights. ...

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    8 zeroing the lr810 16 bucket too heavy message if, while zeroing, the weight is greater than 10% of full scale, the indicator displays the following message and does not carry out any adjustment. This prevents any accidental zeroing of valid weights..

  • Page 23: 9  Automatic Zero Prompt

    9 automatic zero prompt 17 9 automatic zero prompt because zero errors affect the accuracy of lifted weights, it is important to do zero checks regularly. Changes in zero occur more often while the machine is warming up. The automatic zero prompt is an optional feature which can be enabled when the ...

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    10 adding, subtracting and recalling 18 10 adding, subtracting and recalling adding a weight the add function adds the lifted weight to the short and long totals for the current product. >>>> to add a new load 1. Lift the load smoothly until the lr810 beeps and the trig light comes on. (the lower di...

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    10 adding, subtracting and recalling 19 subtracting a weight the subtract function subtracts the lifted weight from the short and long totals for the current product. This can be used, for example, when a log has been added and then removed from a truck. Another example is when only part of a final ...

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    10 adding, subtracting and recalling 20 total mode the upper display briefly shows “subtracted!” and then the reduced short total. Lifted weight 2500 sand 9650 kg then subtracted! 2500 sand 7150 kg then ready sand 7150 kg target mode the upper display briefly shows “increased amount” and then the am...

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    10 adding, subtracting and recalling 21 recalling last weight the recall function is a feature which recalls and displays the last weight lifted. This allows you to correct mistakes in adding or subtracting weights to the totals. Recalling is equivalent to lifting the same weight again, but there ar...

  • Page 28: 11  Batch Weighing Mode

    11 batch weighing mode 22 11 batch weighing mode batch weighing allows you to add the weights of different products together to obtain the total weight of a mix. Batch weighing mode is an optional feature which can be enabled when the lr810 is installed. If it is available in your installation, you ...

  • Page 29: 12  Weighing With Tare

    12 weighing with tare 23 12 weighing with tare a tare is a weight that is lifted but is not part of the payload. (for example, the weight of a wooden pallet). If only the weight of the product is required, the weight of the pallet can be automatically subtracted from the total weight. This is perfor...

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    12 weighing with tare 24 >>>> to enter a keyboard tare (use this method if you already know the tare weight.) 1. Before lifting any load, press the tare key. 2. Enter the tare weight using the number keys 0 to 9 and press ent . (you can use the clear entry key to correct any mistakes.) 3. The lr810 ...

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    13 operating with interlock (not part of standard lr810 installation kit) 25 13 operating with interlock (not part of standard lr810 installation kit) the interlock feature is used to ensure that the bucket or forks are in the correct position for weighing. Interlocking is an optional feature which ...

  • Page 32: 14  Additional Data

    14 additional data 26 14 additional data if this feature is enabled, the lr810 allows you to enter three numbers which provide additional information to the weight data. Each number has a label to identify it. The specific labels for your lr810 are set up at installation time. Typical labels might b...

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    14 additional data 27 you may have either one, two or three numbers available depending on how the lr810 is set up at installation time..

  • Page 34: 15  Operator Menu Options

    15 operator menu options 28 15 operator menu options the operator menu provides options for you to change some of the settings of the lr810. The settings you can change are: • switch between scale 1 and scale 2. • switch batch mode on or off. • set the clock. • clear all long totals. These functions...

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    15 operator menu options 29 3. To change the scale, press ent . The lr810 displays the new scale for a few seconds and then returns to the ready state with the new scale selected. The lr810 then prompts you to check zero. Batch mode on / off if batch mode is enabled in the lr810, you can switch batc...

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    15 operator menu options 30 enter the correct minutes using the number keys. (you can clear mistakes using the clear entry key.) when the minutes are correct, press ent . 5. The display prompts you to enter the hours. Enter the correct hours using the number keys. Toggle between am and pm using the ...

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    15 operator menu options 31 4. The lr810 prompts you to confirm the operation. To clear the totals, press ent . To exit without clearing, press any other key. Note: if the lr810 has a printer connected, the long totals are printed together with a grand total before being cleared..

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    15 operator menu options 32 menu map the diagram below shows the menu options available when you press the menu key..

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    16 using the ld640 data logger 33 16 using the ld640 data logger the ld640 data logger is an optional accessory to the lr810 weighing system. The ld640 consists of a portable capsule which stores the data and a base unit which is connected to the lr810. The ld640 records weight data as you operate t...

  • Page 40: 17  Print Functions

    17 print functions 34 17 print functions when an lp750 printer is connected weight data can be printed as the lr810 makes measurements. Most print options can be set up at installation. The data can be automatically printed when particular functions are performed as listed below. On power up lr810 a...

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    17 print functions 35 time and date always printed zero performed weight zeroed always printed tare performed new tare value or tare cleared change of scale new scale number always printed.

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    18 obtaining the best accuracy 36 18 obtaining the best accuracy lifting speed the hydraulic pressure required to lift a load varies with the speed of lift. The lr810 electronically corrects for most variations, but better accuracy is obtained if you limit the range of lifting speed used. Keep engin...

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    18 obtaining the best accuracy 37 temperature the temperature of the hydraulic fluid in the lifting cylinders affects weighing accuracy. If the loader is idle for more than an hour, the oil cools down. If practical: warm the oil to the normal working temperature before weighing.

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    19 span calibration correction 38 19 span calibration correction this function allows small changes to be made to the lr810 calibration if the bucket or forks of the loader are modified or if no accurate test weight is available when the lr810 is calibrated at installation time. The adjustment is ca...

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    19 span calibration correction 39 5. Enter the access code and press ent . 6. Press ≤ or to reach the alter span option. 7. Press ent . The lr810 prompts you to enter the loadrite value for the weight. 8. Enter the loadrite weight (26.000 in this example) and press ent . The lr810 prompts you to ent...

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    20 changing the backup battery 40 20 changing the backup battery the lr810 has a backup battery which maintains the clock and memory when main power is off. When the battery requires changing, the lr810 displays a “low battery” message each time the unit is switched on. When this message appears, yo...

  • Page 47: 21  Error Messages

    21 error messages 41 21 error messages lift speed changed? For accurate measurement, the speed of raising the lift arms must be smooth, without acceleration or deceleration. The lr810 can detect changing speed as the arms go past the trigger point. If this occurs, the indicator displays the followin...

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    21 error messages 42 error close to tolerance limit if a weighing error is close to but not greater than the tolerance limit, the lr810 displays the following warning message. The weight can be added as usual. Trigger fault the optical trigger uses light beams to sense the position of the lifting ar...

  • Page 49: 22  Keys

    22 keys 43 22 keys this section gives brief descriptions of the function(s) of each key. Adds the measured weight to the short and long totals clears the short total to zero, ready to start another truck load zeroes the lr810 when an empty bucket is lifted switches the lr810 from total to target mod...

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    22 keys 44 menu displays the operator menu options number keys.

  • Page 51: 23  Specifications

    23 specifications 45 23 specifications suitable applications the lr810 measures weight by sensing the hydraulic pressure required to lift a load. An optical trigger mechanism senses the position of the lifting arms. Typical vehicles using the lr810 system are: • front end loaders (bucket and/or fork...

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    23 specifications 46 clock built in clock provides time and date. Hours, minutes, am/pm, day, month, year. Physical lr810 indicator protected to ip54. Dimensions w 170mm, l 270mm, h 90mm. Weight - 2kg with mounting frame. Anti-vibration mounts. Lx400 pressure transducer protected to ip67 optical tri...

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    24 output/input connections 47 24 output/input connections transducer 1 1. Nc. 2. Auxillary analog input. (lx400) 3. Transducer 1 current input. 4. +10 volt excitation. 5. Auxillary analog input. (lx400) 6. Shield. 7. Ground. Transducer 2 1. Nc. 2. Auxillary analog input. 3. Transducer 2 current inp...

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    24 output/input connections 48 printer/edp (12 way) 1. -ve 2. +ve 3. +5v output 4. Aux rs232 input 5. Aux rs232 output 6. Printer rs232 output 7. Printer busy 8. Edp rs232 input 9. Edp rs232 output 10. -ve 11. Nc. 12. Nc..

  • Page 55: 25  Index

    25 index 49 25 index a accuracy ........................... 36, 45 adding a weight ...................... 18 additional data........................ 26 b batch weighing........................ 22 switching on/off.................. 29 battery..................................... 40 bouncing ............