RDS Technology Weighlog 200 User Manual
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RDS Technology Weighlog 200 User Manual

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Electro-Magnetic Compatibility (EMC)
This product complies with Council Directive 2004/108/EC
when installed and used in accordance with the relevant
instructions.
Service and Technical Support
PLEASE CONTACT YOUR NEAREST DISTRIBUTOR
If unknown then fax: 44 (0) 1453 733322
© Copyright RDS Technology Ltd 2010
Document number
S/DC/500-10-344 : Issue 6.03 : 6/5/10
\UK344603.DOC
User Guide
Weighlog 200
On-Board
Weighing System
Calibration and Operation
Software Reference WZ305-005 rev.07

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Summary of Contents for RDS Technology Weighlog 200

  • Page 1 Service and Technical Support PLEASE CONTACT YOUR NEAREST DISTRIBUTOR If unknown then fax: 44 (0) 1453 733322 © Copyright RDS Technology Ltd 2010 Document number S/DC/500-10-344 : Issue 6.03 : 6/5/10 \UK344603.DOC User Guide...

  • Page 2: Table Of Contents

    CONTENTS Contents Overview_________________________________________4 Programming Modes ....................5 The Control Switches _____________________________6 Display Units ....................7 Machine requirements ..................7 Lifting procedure ....................8 Before Weighing__________________________________9 Select Channel....................9 Select the Weighing Mode................9 Checking the Weighing Mode..............9 Check Zero Weight ..................10 Zero Weight (Set Tare)...................11 Weighing ______________________________________ 12 Dynamic Weighing..................12 Static weighing....................12...
  • Page 3 CONTENTS Calibration _____________________________________ 18 Programme a Numeric Setting..............18 Entering a Negative Value................18 CAL Mode 1 – Weight Calibration ..............19 6.2.1 Enter CAL Mode 1 ................21 6.2.2 Set Weighing Mode ................. 21 6.2.3 Set Initial Cal. Factor ............... 21 6.2.4 Weight Calibration Routine..............

  • Page 4: Overview

    OVERVIEW Overview The Weighlog 200 is intended for use on industrial and agricultural loading shovels, fore-end loaders, back-hoe loaders, (loader side only), tipping trailers and tipping trucks. It measures, displays and records the net weight lifted, normally based on sensing the lift system hydraulic pressure. Pressure sensing is problematic on certain types of equipment due to the design of the hydraulic system.

  • Page 5: Programming Modes

    OVERVIEW Programming Modes There are 3 programming modes with various calibration factors and default settings. Many of these settings are made on installation and do not normally need to be changed unless the instrument is moved on to a different loader. The operator does not normally need to access the programming modes.

  • Page 6: The Control Switches

    OVERVIEW The Control Switches There are five switches on the front panel used individually or in combination to programme, set, reset or select a function. Channel Indicator PRINTING Channels 1-5 MANUAL WEIGHING Press to print the Press to manually weight total for the sample a weight (i.e.

  • Page 7: Display Units

    OVERVIEW Display Units The instrument can be set to display units as tons (USA)/ tonnes, kgs or lbs. When set to the "kgs" or ‘lbs’ readout option, the display will read up to ‘9990’ rounded to the nearest 10 units. Above this threshold (e.g. when displaying any of the totals) the display will alternate between "lbs x 1000"...

  • Page 8: Lifting Procedure

    OVERVIEW Maintenance : Keep your machine maintained in good condition. Things like excessively worn bushings, pivot pins and slideways, as well as lack of lubrication to these areas can have an adverse effect on weighing accuracy. NOTE: After any major servicing particularly if you have replaced worn components or carried out welding repairs, you should re-calibrate the weighing system.

  • Page 9: Before Weighing

    PRELIMINARY SETTINGS Before Weighing Select Channel Ensure that the correct channel is selected for the attachment / commodity / trailer to be weighed. Simply press the button to cycle through the channels. Figure 3 Select Channel Select the Weighing Mode In the normal operating mode, you cannot switch between...

  • Page 10: Check Zero Weight

    PRELIMINARY SETTINGS Check Zero Weight should check zero weight regularly as part of the daily operating routine. ALWAYS check zero weight if the machine has been left idle for some time and has cooled down. The lifting procedure is different for Dynamic and Static weighing modes.

  • Page 11: Zero Weight (Set Tare)

    PRELIMINARY SETTINGS Zero Weight (Set Tare) The weight should be zeroed if the weight reading for an empty bucket is more than ±0.02t, or 20 kgs, or 40lbs. Ensure that the hydraulic system is up to it's normal operating temperature. It may be necessary to lift and lower a full bucket minutes to exercise the hydraulics and warm the system up.

  • Page 12: Weighing

    WEIGHING Weighing There are two fundamentally different ways of weighing with the Weighlog - Dynamic weighing and Static weighing. You can select the weighing method for each of the five channels on the instrument. Dynamic Weighing Dynamic weighing means that the weight is measured without interrupting the lift.

  • Page 13: Trailer Weighing

    Trailer Weighing Specifically for weighing applications other than for front-end loaders, e.g. for trailer weighing, a special feature of the Weighlog 200 allows you to manually trigger a weighing sample using the REF button. In effect, the REF button performs the function of a Reference/Direction sensor.

  • Page 14: Incorrect Weight Readings

    WEIGHING Incorrect Weight readings After performing the initial weight calibration and loading a few trucks, you may find that the load readings from the instrument are consistently different from weighbridge (weighscale) readings. This situation can also occur after maintenance or repair to the loading shovel e.g. changing a bucket. If the Weighlog reading is more than the true weight, the factor is decreased and vice versa, if the Weighlog reading is less than the true weight, the factor is increased.

  • Page 15: Load Alarm

    WEIGHING Load Alarm Default: - Alarm Off The instrument has a Load Alarm function. If the load exceeds a preset figure set in CAL Mode 2 (6.2.6), an audible alarm is triggered and the weight display will flash. The alarm will continue and weighing is not possible until the overload condition ceases.

  • Page 16: Automatic Printing

    WEIGHING Automatic Printing NOTE: The print mode in CAL Mode 3 (6.4.2) must be set to either “REC” “ROLL” or “ENT” to enable automatic printing. “REC” / “ROLL” Print Mode The instrument will automatically generate a “REC” or “ROLL” type printout when you reset any channel to zero, for example,.

  • Page 17: Totals

    WEIGHING Totals Reset Individual Sub-totals / Grand Total Channels reset independently. Select the appropriate channel. Press and hold the button or the Remote Enter button for 5 seconds. The display will flash 5 times and then go to zero. If “REC” or “ROLL” print mode is enabled, the instrument will automatically generate a printout.

  • Page 18: Calibration

    WEIGHING Calibration Programme a Numeric Setting This applies to any numeric setting that needs changing. With factor displayed, normally, the left-hand digit of the four-digit number will be flashing (Fig.18). While holding the button, PRESS and RELEASE the button to SELECT the digit you want to change, or decimal point to move.

  • Page 19: Cal Mode 1 - Weight Calibration

    CALIBRATION CAL Mode 1 – Weight Calibration The calibration factor is an arbitrary number relating the hydraulic pressure (or strain measurement) in the lift system to the load in the bucket. Accurate results from the Weighlog can only be achieved if the calibration procedure has been carried out carefully and in the correct sequence.
  • Page 20 CALIBRATION Set Zero (with empty bucket) 6.2.2 Set Weighing Mode (“dYn” or “StAt”) 6.2.3 Set Initial Cal Factor (= Max. Load Capacity in tonnes) Weight Cal. Routine DYN. MODE STAT. MODE “Load FASt” Fast lift (full load) “Load Slo” Slow lift (full load) 6.2.4 (i) “Empt FASt”...

  • Page 21: Enter Cal Mode 1

    CALIBRATION 6.2.1 Enter CAL Mode 1 Press the button and power-on the instrument. Press to select the channel you want to calibrate (channels 1 to 5). 6.2.2 Set Weighing Mode Hold the button and press the HOLD PRESS button to toggle between Static mode (“StAt”) and Dynamic mode (“dYn”).

  • Page 22: Weight Calibration Routine

    CALIBRATION 6.2.4 Weight Calibration Routine This continues from section 6.2.3. Proportional Scaling Factor/Speed Compensation NOTE: This appears only if dynamic weighing mode If you want to weigh (“dYn”) is set, otherwise, skip to section 6.2.4 dynamically, you need (ii). only perform this “Proportional Scaling”...

  • Page 23: (Ii) Set Cal. Factor (With A Test Load)

    CALIBRATION NOTE: Note down the average frequency reading (fast/slow lift) with the empty bucket. This figure is required to calculate the threshold value for the Load Alarm on the TOTAL channel (ref. 6.2.6). 11. Dynamic weighing mode : Lift the bucket AT NORMAL SPEED through the reference position.

  • Page 24: Overload Alarm Setup

    CALIBRATION 6.2.5 Overload Alarm Setup Cal 1 - Channel 6 : The default setting is 0000 Hz (Alarm Off). If the load sensor frequency input exceeds the value set on this channel, an audible alarm is triggered and the display flashes. Calculate the threshold frequency as follows, Threshold Hz = Hz for empty lift + (Alarm load (kg) x Cal Factor) Example:...

  • Page 25: Cal Mode 2

    CALIBRATION CAL mode 2 6.3.1 Enter CAL Mode 2 Press the ZERO button and power-on the instrument (fig. .24). Press select the channel. FUNCTION Speed Compensation Live Static REF Button Time / Date Language TOTAL Units Figure 24 : Enter CAL Mode 2 6.3.2 Speed Compensation (Channel 1) Press the...

  • Page 26: Live Static (Channel 2)

    CALIBRATION “GrAd” xxxx (no units). Compensation Curve Factor: This gives the correction for the change in lift speed. If a faster lift gives a lower weight reading, then decrease the “GrAd” figure. “ProP” xxxx (%) Proportional Correction Factor: This gives the reduction in speed compensation for an empty bucket, compared to a full bucket.

  • Page 27: Ref" Button (Channel 3)

    CALIBRATION 6.3.4 “REF” Button (Channel 3) Normally enabled for weighing applications other than front-end loaders, e.g. for trailer weighing. When switched on, pressing the REF button in the operating mode triggers a weighing sample. In effect, the REF button manually performs the function of a reference/direction sensor.

  • Page 28: Units (Total Channel)

    CALIBRATION 6.3.7 Units (TOTAL Channel) The display can be set to suit “tons”, “kgs” or “lbs” readout (ref section 2.1). The default units are tons /tonnes. Press to toggle. When “tons” units is selected, the test load weight is entered in tons / tonnes.

  • Page 29: Cal Mode 3 (Print Setup)

    CALIBRATION CAL mode 3 (Print Setup) 6.4.1 Enter CAL Mode 3 Press the button and power-on the instrument (Fig.24). Press select the channel. FUNCTION Print Mode Handshake (RTS/XON) Print Heading Cal Factor Adjustment TOTAL Figure 25 : Enter CAL Mode 3 6.4.2 Set Print Mode (channel 1) “REC”...

  • Page 30: Handshaking (Channel 2)

    CALIBRATION 6.4.3 Handshaking (Channel 2) The default setting “RTS” suits the RDS ICP200 printer. You only need to change the setting if you wish to connect an alternative printer that requires “XON” handshaking. Press to toggle between “RTS” and “XON”. The full protocol is :- 4800 Baud / Data bits / 1 Stop bit / No Parity.

  • Page 31: Error Message: "Prog

    CALIBRATION Error message: "Prog" The instrument memory has been corrupted. Please contact your local RDS distributor. Error message: "Err" If the display shows "Err" then there is no pressure signal being received, indicating either a poor connection in the sensor wiring or a faulty sensor. Visually inspect the wiring loom and connections first, then if necessary, check continuity of the sensor lead wires between the "Terminator"...
  • Page 32 CALIBRATION Channel Attachment/Trailer Weighing Mode Cal. Factor /Commodity...

  • Page 33: Diagnostic Mode

    CALIBRATION Diagnostic Mode This allows fast and effective problem solving if any issues should occur. Press and hold the “REF” (outer left) button on power-up to access the Diagnostics mode. On entry the screen will display “diag” for 1 second followed by a display of the live frequency from the pressure sensor.
  • Page 34 CALIBRATION Issue 1b: 20/6/02 Original Issue para. 7, p.19 and para. 12a, p.20 Issue 2: 6/9/02 Amendments on p.17. Added p.18 (Note 2). Amendment p.21 Issue 3: 8/6/05 Amendments ref pages 4,6,11,13,14,15,21,23,26 Issue 4 : 14/10/08 Added Diagnostics Issue 5: 10/11/08 Changes for latest software Section 2.1, p.7 - units...

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