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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 LR810 is installed.

The automatic zero prompt reminds the operator to do a zero check:

•

Every 15 minutes for the first hour.

•

Every 30 minutes thereafter.

The reminder consists of a series of short beeps and the following display.

You should then carry out the zeroing operation described on page 15.

Note

The automatic zero prompt does not appear if you have recently checked
zero.

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Содержание LR810

Страница 1: ...LR810 WEIGHING SYSTEM Operating Manual ...

Страница 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 ...

Страница 3: ... 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 1996 ACTRONIC NEW ZEALAND LTD When re ordering this manual quote Doc number 80085 05 MAN ...

Страница 4: ......

Страница 5: ...5 Total Mode 9 Short Total 9 Long Total 10 Clearing Totals for all Products 10 6 Target Mode 11 7 Product Names 13 Identification Tracking 13 One Product Only 13 Multiple Products 13 8 Zeroing the LR810 15 9 Automatic Zero Prompt 17 10 Adding Subtracting and Recalling 18 Adding a Weight 18 Subtracting a Weight 19 Recalling Last Weight 21 11 Batch Weighing Mode 22 12 Weighing with Tare 23 13 Operat...

Страница 6: ...ing Speed 36 Trigger Point 36 Bounce 36 Centre of Gravity 36 Uneven Ground 36 Temperature 37 19 Span Calibration Correction 38 20 Changing the Backup Battery 40 21 Error Messages 41 Lift Speed Changed 41 Bouncing Load 41 Error Close to Tolerance Limit 42 Trigger Fault 42 22 Keys 43 23 Specifications 45 24 Output Input Connections 47 25 Index 49 ...

Страница 7: ...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 Data Printer Manual Storing data LD640 Data Capture Manual Parts list LR810 LP750 Spare Parts Manual ...

Страница 8: ...the load The heart of the system is the LR810 indicator which provides a keypad for entering instructions and LCD screens to display readings and messages 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 The main p...

Страница 9: ...alibrated so that only the weight of the payload is displayed When a weight is displayed the driver can add it to a total or use one of the other functions described later in this manual Displays The LR810 provides two displays The top display gives instructions and information to the operator including product names and weight data The bottom display shows the current weight as it is lifted then ...

Страница 10: ...ht If the interlock feature is enabled this light comes on when the bucket is in the correct weighing position 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 Optical Trigger To ensure consistent and accurate measurement the LR810 sys...

Страница 11: ...ature If the machine has been standing idle or used only occasionally during the last 30 minutes the empty bucket should be lifted a few times A zero check should be performed before weighing 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...

Страница 12: ...de are given on pages 9 and 11 respectively Multiple Products The LR810 allows you to weigh and store totals for up to sixteen different products The selected number of products are enabled when the LR810 is installed 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 ...

Страница 13: ...trigger sequence begins The LR810 is correctly zeroed Weighing a Load To weigh a load Raise the load smoothly through the trigger point using normal engine revs 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 ...

Страница 14: ... just measured weight and goes back to the Ready state Multiple Scales If the multiple scale option is enabled in your LR810 you can measure weights using Scale 1 or Scale 2 Scale 1 and Scale 2 allow two different load bearing implements to be used for lifting For example two different types of bucket fork attachments The scale currently in use is displayed on the top line of the display To change...

Страница 15: ...mode when switched on You can return to total mode from Target mode by pressing TOTAL Short Total The short total is typically used to display the total weight lifted onto a truck 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 lar...

Страница 16: ... you to confirm 2 To clear press ENT The indicator clears the long total for the current product and then displays the following message In this example the long total for product number 1 was cleared The next ADD operation starts a new long total for the current product Clearing Totals for all Products To clear the short totals for all products you need to select each product in turn and clear th...

Страница 17: ...ished cleared the last target operation 2 Press TARG The indicator prompts you to enter a new target weight 3 Enter the new target using the number keys 0 to 9 or simply press ENT to select the displayed target weight again You can use the CLEAR ENTRY key to correct any errors made while entering the number The indicator displays the amount To Load to reach the target and goes to the Ready state T...

Страница 18: ...et or change the target weight During a target weight operation you can check the amount added so far by pressing TOTAL to switch to total mode You can then return to target mode by pressing TARG During a target weight session you can review the target weight and the weight still to go by pressing and holding down TARG If the total of the weights added exceeds the target by a certain percentage th...

Страница 19: ...ogger 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 The LR810 maintains a separate short and long total for ea...

Страница 20: ...played press ENT The LR810 displays the product name corresponding to the number you entered and is ready to weigh 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 operation and return to the original at any time without losing the data ...

Страница 21: ...rms smoothly past the trigger point To zero the LR810 1 Raise the empty bucket smoothly until the LR810 beeps and the TRIG light comes on 2 While the TRIG light is on press ZERO 3 The LR810 performs the zero adjustment and displays a confirmation message 4 The LR810 then returns to the Ready to weigh state Large Zero Error If while zeroing there is a large zero error displayed weight greater than ...

Страница 22: ... 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 ...

Страница 23: ...ro 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 Every 15 minutes for the first hour Every 30 minutes thereafter The reminder consists of a series of short beeps and the following display You should then carry out the zeroing operation described on page 15 Note The automatic zero prompt does not appe...

Страница 24: ...t The displays depend on whether you are in Total mode or Target mode as shown below Total mode When the weight is added the upper display briefly shows the number of lifts and then the short total for the product Lifted Weight 1000 Sand 1500 kg Then 2 Added Sand 2500 kg Then Ready Sand 4000 kg Target mode The upper display briefly shows Reduced amount and then the amount still required to reach t...

Страница 25: ...terial is required You can add the full bucket weight and then re weigh and subtract the amount remaining in the bucket To subtract a weight 1 Lift the load smoothly until the LR810 beeps and the TRIG light comes on The lower display shows the lifted weight 2 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 ...

Страница 26: ... and then the amount required to reach the target which has been increased Ready To Load 12000 kg Then Lifted Weight 2500 To Load 12000 kg Then Increase Amount To Load 14500 kg Then Ready To Load 14500 kg 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 ...

Страница 27: ... is equivalent to lifting the same weight again but there are some limitations You can only recall the last weight if it has been Added Subtracted or Timed out ignored To recall the previously lifted weight 1 Press RECALL The LR810 displays the previous weight and the TRIG light comes on 2 While the TRIG light is on you can ADD unless the previous action was an ADD SUB unless the previous action w...

Страница 28: ...ch mode on or off from the MENU options see page 29 When batch mode is on the functions of the weight displays change as follows Top display While the TRIG light is on shows the lifted weight While the TRIG light is off shows the short total for this product Bottom large display While the TRIG light is on shows the lifted weight While the TRIG light is off shows the sum of the short totals for all...

Страница 29: ...the unwanted weight eg pallet separately The LR810 then automatically subtracts this tare weight from all subsequently measured weights 2 Keyboard tare The unwanted weight is already known and is entered using the keyboard The LR810 then automatically subtracts this tare weight from all subsequently measured weights To enter a push button tare Use this method if you do not know the tare weight 1 L...

Страница 30: ... weights Note The LR810 rounds the tare weight to the weighing resolution of your installation If the weighing resolution is set to 100kg and you enter a tare of 260kg the LR810 rounds the tare weight to 300kg To clear the tare To clear a tare use the keyboard as described above to enter a tare of zero The LR810 turns off the tare light and briefly displays a confirmation message Notes on tare Whe...

Страница 31: ...xcept that the bucket or forks of the machine must be in the correct position before a weight can be measured The correct position is indicated when the interlock light centre light on the LR810 is on To weigh with interlocking 1 Make sure the LR810 is Ready 2 Operate the bucket to pick up the load 3 Move the bucket to the correct lifting position The interlock light comes on 4 Lift the load smoot...

Страница 32: ...s long If you have the appropriate equipment installed this information can be stored in the data logger and or printed with the weight data To enter additional data numbers This explanation uses the example labels above 1 When the LR810 is Ready press DATA The LR810 displays the first label and prompts you to enter a number 2 Enter a number up to eight digits and press ENT The LR810 displays the ...

Страница 33: ...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 ...

Страница 34: ... security code to allow access to these functions Menu Keys The same keys are used for all menu options as follows To access the menu press MENU To accept an option press ENT To obtain the next menu option press or shown as on the display 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...

Страница 35: ...ode option 3 To change the mode press ENT The LR810 displays the new setting of batch mode for a few seconds and then returns to the Ready state Setting the Time and Date The LR810 has an internal clock which can used for inserting the time and date into recorded and printed data You can also display the time and date on the upper display by pressing the TIME key The LR810 has a backup battery whi...

Страница 36: ... as prompted day 1 31 month 1 12 year 0 99 pressing ENT between each part 7 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 tot...

Страница 37: ...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 ...

Страница 38: ...15 Operator Menu Options 32 Menu Map The diagram below shows the menu options available when you press the MENU key ...

Страница 39: ...tor Displays The LD640 causes the LR810 to display the following messages at certain times When data capsule inserted When a data capsule is inserted into the base the LR810 briefly displays the following message 4 2 is replaced by the actual amount of data in the capsule When data capsule removed If the data capsule has been removed from the base and the LR810 attempts to send data to it the LR81...

Страница 40: ...al User defined number 3 Optional SUB performed Sequence number Optional Weight Optional Clear short total Product number Optional Total weight Optional User defined number 1 Optional User defined number 2 Optional User defined number 3 Optional ID number of loader Optional Time and date Optional User title company name Optional Product name Optional Scale Number Optional Clear long total Product ...

Страница 41: ...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 ...

Страница 42: ...terms of time at least 2 seconds of lift before the trigger point Bounce Most loaders have pneumatic tyres which can cause the machine to bounce when lifting Any bounce causes variation in the hydraulic pressure and affects the accuracy of the weight measurement To minimise the effect of bounce Always operate the lift lever before accelerating the engine and as recommended above Start the lift wel...

Страница 43: ...mperature 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 ...

Страница 44: ... to obtain a security access code from your Loadrite installer WARNING The LR810 alters its calibration every time this function is used It is important that you only use this function once with a given set of data If the same weights are entered again the LR810 will over correct and its accuracy will be seriously impaired The method is explained below using an example Suppose a bucket loader load...

Страница 45: ...mits the LR810 alters its calibration briefly displays a value of scale factor and then returns to the ready state If the required adjustment is too large the LR810 displays an error message and does not change its calibration Checking the Adjustment You can check the calibration adjustment by obtaining and comparing new Loadrite and weighbridge totals If necessary the calibration adjustment can b...

Страница 46: ...his 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 To replace the battery 1 Make sure the LR810 is switched on to prevent loss of data 2 Remove the battery cover which is held in place by four screws 3 Unplug the old bat...

Страница 47: ...ing and decelerating at or near the trigger sequence 2 If weighing error is turned off and a weight is displayed You can add the weight to the running total bearing in mind that the weight measurement is not reliable or you can ignore this weight and repeat the lift again avoiding acceleration and deceleration at or near the trigger sequence Bouncing Load If the lift arms are bouncing significantl...

Страница 48: ...quite powerful and pass through normal build up of dirt or dust However a large chunk of dirt or mud may block one of the beams If this occurs the indicator displays the following message If this occurs clean the faces inside the U shaped trigger sensor with a damp cloth There are two dark lenses on either side through which the light beams pass In most situations the beams are never blocked Howev...

Страница 49: ...ct a new product TOTAL Switches the LR810 from target to total mode TARE Allows you to enter or acquire a tare weight Scrolls the menu options DATA Allows you to enter additional data EXIT Exits some menu options Clears a numeric entry made in error Accepts data or options entered 4 Enters the number 4 RECALL Recalls the last measured weight SUB Subtracts the measured weight from the totals Scroll...

Страница 50: ...22 Keys 44 MENU Displays the operator menu options Number keys ...

Страница 51: ...al lift LR810 Power Requirements Supply Voltage 11 4 to 32 Volts DC Supply Current LR810 120mA typical 220mA max LP750 printer 50mA standby 4A peak LD640 data logger 120mA Automatic transient suppression exceeds relevant SAE specifications for DC automotive power supply transients Clock and data backup 9V alkaline battery 8µA typical drain Typical battery life 2 3 years Signal Inputs and Outputs P...

Страница 52: ...mounting frame Anti vibration mounts LX400 pressure transducer Protected to IP67 Optical trigger IP67 Available Options LP750 printer 24 column LD640 data logger Provides electronic data collection Remote ADD button For operator convenience Interlock system To disable weighing under defined machine conditions A large number of additional operating features can be enabled at installation time ...

Страница 53: ...Shield 7 Ground Transducer 2 1 NC 2 Auxillary analog input 3 Transducer 2 current input 4 10 volt excitation 5 Auxillary analog input 6 Shield 7 Ground Power Control 15 way 1 VE SUPPLY 2 VE SUPPLY 3 INTERLOCK 4 REMOTE ADD 5 AUXILLARY ANALOG 2 6 TRIGGER 1 7 AUXILLARY ANALOG 1 8 AUX INPUT 9 AUXILLARY INDICATOR 10 TRIGGER 2 11 AUX OUTPUT 12 NC 13 NC 14 VE SWITCHED OUTPUT 15 VE SWITCHED OUTPUT ...

Страница 54: ...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 ...

Страница 55: ...enu map 32 Menu options 28 O Operator menu 28 P Product names 13 introduction to 6 R Recalling last weight 21 S Scale introduction to 8 Scales changing 28 Short total 9 Span calibration adjustment 38 Specifications 45 Subtracting a weight 19 Switching on 5 T Tare clearing 24 entering a tare weight 23 light 4 Target mode 11 Time key 43 setting 29 Total mode 9 TRIG light 4 Trigger cleaning 42 optica...

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