Loadrite LR810 Operating Manual
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Loadrite LR810 Operating Manual

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LR810
WEIGHING
SYSTEM
Operating
Manual

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Summary of Contents for Loadrite LR810

  • Page 1 LR810 WEIGHING SYSTEM Operating Manual...
  • Page 2 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...
  • Page 3 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 in connection with the use of any Loadrite branded product.

  • Page 5: Table Of Contents

    Contents 1 About This Manual..............1 2 The Loadrite LR810 Weighing System ........ 2 Main Parts of the LR810 System............2 Weight Measurement................3 Displays ....................3 Indicator Lights..................4 Optical Trigger ..................4 3 Getting Started................ 5 Switching On ..................5 Warming Up ..................
  • Page 6 Clearing Long Totals ................30 Menu Map ..................32 16 Using the LD640 Data Logger ........... 33 Displays ....................33 17 Print Functions..............34 18 Obtaining the Best Accuracy..........36 Lifting Speed ..................36 Trigger Point..................36 Bounce....................36 Centre of Gravity ................36 Uneven Ground ..................

  • Page 7: About This Manual

    1 About This Manual 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...

  • Page 8: The Loadrite Lr810 Weighing System

    The indicator has internal memory which stores settings and production data even when switched off. The LR810 is installed in the cab of the loading machine and is connected to sensors on the lifting arms. Main Parts of the LR810 System...

  • Page 9: Weight Measurement

    The bottom display shows the current weight as it is lifted, then shows the total weight loaded or weight required to reach a target, depending on the mode of operation currently selected. Both displays on the LR810 can be backlit for ease of operation in low light conditions. > > > >...

  • Page 10: Indicator Lights

    (not used with a standard LR810 installation). TARE Light This light is on when a tare has been entered. This means that the LR810 is subtracting the tare weight from the lifted weight and is displaying the net weight.

  • Page 11: Getting Started

    You can ignore the readings on the weight displays as you warm up the machine. Initial Warm up Message If your LR810 has been set up to display an initial warm up message and has been off for two hours or more, it prompts you to warm up the machine before starting weighing.

  • Page 12: Multiple Products

    The top display shows the name (number) of the currently selected product. If your LR810 is set up for one product only, the display simply shows Total instead of a product name. Further information about product names is given on page 13.

  • Page 13: Weighing - Overview

    For best results, operate the lift lever before accelerating the engine so that the machine does not rock as it lifts. As you raise the load past the trigger point, the LR810 beeps and the TRIG light comes on to show that the weight has been measured.

  • Page 14: Multiple Scales

    4 Weighing - Overview 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.

  • Page 15: Total Mode

    As you add successive loads, the LR810 displays the weight of the current load and the updated short total (sum of the loads so far). The LR810 displays short totals on the second line of the top display and on the lower (large) display.

  • Page 16: Long Total

    > > > > To clear the long total While the long total is displayed, press ENT. The LR810 prompts you to confirm: To clear, press ENT. The indicator clears the long total for the current product and then displays the following message.

  • Page 17: Target Mode

    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 payload. Target mode is an optional feature which can be enabled when the LR810 is installed. > > > >...
  • Page 18 6 Target Mode 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 •...

  • Page 19: Product Names

    When used with an LD640 data logger, the LR810 can track up to 999 different products, but these can only be identified by number. One Product Only If your LR810 is set up for one product only, the display simply shows Total instead of a product name. Multiple Products If your LR810 is set up for multiple products, the display shows the name of the currently selected product.
  • Page 20 Notes • If you do not select a new product within a few seconds, the LR810 reverts to the original product. • You can select a different product in the middle of a total or target...

  • Page 21: Zeroing The Lr810

    Large Zero Error If, while zeroing, there is a large zero error (displayed weight greater than 5% of full scale), the LR810 asks you to confirm that the bucket is empty. Depending on your response, the indicator displays “Zeroed” or “Not Zeroed”.
  • Page 22 8 Zeroing the LR810 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: Automatic Zero Prompt

    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 LR810 is installed. The automatic zero prompt reminds the operator to do a zero check: •...

  • Page 24: Adding, Subtracting And Recalling

    > > > > To add a new load Lift the load smoothly until the LR810 beeps and the TRIG light comes on. (The lower display shows the lifted weight.) While the TRIG light is on, press ADD.

  • Page 25: Subtracting A Weight

    (The lower display shows the lifted weight.) While the TRIG light is on, press SUB. The LR810 subtracts the weight from the long and short totals for the current product and displays the result. The information given in the upper display depends on whether you...
  • Page 26 The lower display shows the current short total or the amount to reach the target according to the mode selected. NOTE: The LR810 treats SUB as a similar action to ADD. If you add three weights and then subtract one, on the next ADD the indicator briefly displays 5 added, not 3.

  • Page 27: Recalling Last Weight

    > > > > To recall the previously lifted weight Press RECALL. The LR810 displays the previous weight and the TRIG light comes on. While the TRIG light is on, you can: • ADD (unless the previous action was an ADD) •...

  • Page 28: Batch Weighing Mode

    Batch weighing mode is an optional feature which can be enabled when the LR810 is installed. If it is available in your installation, you can switch batch mode on or off from the MENU options (see page 29).

  • Page 29: Weighing With Tare

    > > > > To enter a push button tare (Use this method if you do not know the tare weight.) Lift the empty container or pallet until the LR810 beeps and the TRIG light comes on. Press TARE. To accept the tare weight, press ENT.
  • Page 30 The LR810 turns off the tare light and briefly displays a confirmation message. Notes on tare • Whenever the tare light is on, the LR810 displays the net weight of the product. • You cannot tare out negative weights. •...

  • Page 31: Operating With Interlock

    Lift the load smoothly until the LR810 beeps and the TRIG light comes on. You can then add or subtract the load as normal. If you attempt to weigh when the interlock light is not on, the LR810 displays a message and no weight is measured.

  • Page 32: 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.
  • Page 33 14 Additional Data You may have either one, two or three numbers available depending on how the LR810 is set up at installation time.

  • Page 34: Operator Menu Options

    • To exit the menu, press EXIT then ENT. • If you do not press a key, the LR810 returns to the Ready state after a short delay. Change Scale If the multiple scale option is enabled in the LR810, you can select Scale 1 or Scale 2.

  • Page 35: Batch Mode On / Off

    The LR810 then prompts you to check zero. Batch Mode On / Off If batch mode is enabled in the LR810, you can switch batch mode on or off. Operating with batch mode is described on page 22. > > > >...

  • Page 36: Clearing Long Totals

    Finally, the LR810 displays the complete time and date for a few seconds before returning to the Ready state. Note: at any time while entering the time and date you can press EXIT to return the LR810 to the Ready state without altering the current time and date. Clearing Long Totals This option allows you to clear the long totals for all products in one go.
  • Page 37 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.

  • Page 38: Menu Map

    15 Operator Menu Options Menu Map The diagram below shows the menu options available when you press the MENU key.

  • Page 39: Using The Ld640 Data Logger

    When the data capsule has stored data up to its capacity, the LR810 briefly displays a message to that effect. You can continue to operate the LR810, but if you want to record the data, you must insert another data capsule.

  • Page 40: Print Functions

    17 Print Functions 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.
  • Page 41 17 Print Functions 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...

  • Page 42: 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 engine revs consistant...

  • Page 43: Temperature

    18 Obtaining the Best Accuracy 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...

  • Page 44: Span Calibration Correction

    (scale house) over a period of time and the corresponding LR810 total. If your LR810 is set up to use two measuring scales, both Scale 1 and Scale 2 calibration must be adjusted. To perform the adjustment you need to obtain a security access code from your Loadrite installer.
  • Page 45 Press  to reach the Alter Span option. Press ENT. The LR810 prompts you to enter the Loadrite value for the weight. Enter the Loadrite weight (26.000 in this example) and press ENT. The LR810 prompts you to enter the weighbridge value.

  • Page 46: Changing The Backup Battery

    When this message appears, you should install a new battery as soon as possible. The battery compartment is at the top of the rear of the LR810 indicator. All totals + time/date. WARNING - memory lost if power off and battery out for 30 seconds >...

  • Page 47: Error Messages

    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 following error message.

  • Page 48: Error Close To Tolerance Limit

    21 Error Messages 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 arms.

  • Page 49: Keys

    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 mode. Allows you to enter a new target weight...
  • Page 50 22 Keys MENU Displays the operator menu options Number keys...

  • Page 51: Specifications

    23 Specifications 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) •...
  • Page 52 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...

  • Page 53: Output/Input Connections

    24 Output/Input Connections 24 Output/Input Connections Transducer 1 Auxillary analog input. (LX400) Transducer 1 current input. +10 volt excitation. Auxillary analog input. (LX400) Shield. Ground. Transducer 2 Auxillary analog input. Transducer 2 current input. +10 volt excitation. Auxillary analog input. Shield.
  • Page 54 24 Output/Input Connections Printer/EDP (12 way) +5V OUTPUT AUX RS232 INPUT AUX RS232 OUTPUT PRINTER RS232 OUTPUT PRINTER BUSY EDP RS232 INPUT EDP RS232 OUTPUT...

  • Page 55: Index

    25 Index 25 Index Accuracy ......36, 45 Scale Adding a weight ...... 18 introduction to.......8 Additional data......26 Scales changing......28 Short total ........9 Batch weighing......22 Span calibration adjustment..38 Specifications ......45 switching on/off....29 Subtracting a weight ....19 Battery........40 Switching on ......5 Bouncing .........

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