Ravas SAFECHECK, Installation And User Manual

Page 1: ...ke to inform you about the fact that this RAVAS product is 100 recyclable on the basis that the parts are processed and disposed off in the right manner More information can be found on our website www ravas com Rev 20181015 Printing typographical errors and model changes reserved ...

Page 2: ...nstructions or from negligent operation or assembly even if this is not expressly stated in this instruction manual In light of our policy of continuous improvement it is possible that details of the product may differ from those described in this manual For this reason these instructions should only be treated as guidelines for the installation of the relevant product This manual has been compile...

Page 3: ...the indicator 14 6 4 Installing the indicator and the indicator bracket 14 6 5 Mounting the sensor cable 15 6 6 Remove any air from the hydraulic system 16 6 7 Placing stickers marking the reference altitude 16 7 Settings 17 7 1 Determine the capacity of the truck 17 7 2 Interval setting 17 7 3 Change the delay time 20 8 Calibration 21 8 1 Preparing for calibration 21 8 2 Correcting the zero point...

Page 4: ...difications done to the system must be approved in writing from the supplier prior to any work being completed It is the sole responsibility of the purchaser to train their own employees in the proper use and maintenance of this equipment Do not operate this unit unless you have been fully trained of its capabilities Check the accuracy of the scale on a regular basis to prevent faulty readings Onl...

Page 5: ...d occur First lift the forks past the reference point and then lower the load to the point where the stickers are opposite each other This results in the optimal accuracy 3 3 Accuracy Meassuring the oil pressure is a very precise job but mechanical parts in the lifting mechanism and the position of the mast can adversely affect the accuracy The friction resistance of the roles with which it moves ...

Page 6: ...intenance Use the lift truck at least for 5 minutes or move the forks up and down several times 5x before the zero weighting and or the first weighing is carried out Weigh on a fixed height Do not rise the forks to the reference point too fast The best way is to raise the forks above the reference point the point where the stickers on the fork carriage and the mast are opposite of each other and t...

Page 7: ...he forklift truck The indicator the control panel runs on 6 Volt batteries On the drawing below you can find the parts of this sytem We recommend to have the installation of the sensor in the hydraulic system of the forklift performed by an authorized lift truck dealer Type A 1 central cylinder Indicator T stuk Sensor Sensorkabel Hydraulisch ventielblok sensor cable hydraulic valve block t part ...

Page 8: ...USER MANUAL Safecheck 8 T stuk Sensor Sensorkabel Hydraulisch ventielblok Indicator Type B 2 cylinders on both sides hydraulic valve block sensor cable t part ...

Page 9: ...oltages for forklift trucks are 12 24 48 and 80 V If the battery voltage is higher than 12 VDC the system demands a DC DC voltage converter with an output of 12 Vdc 5 4 Make the system free of oil pressure The forklift truck has to be free of oil pressure There are two ways to do this Option 1 Lower the forks to the ground in the lowest position and make sure the system is without oil pressure you...

Page 10: ... forklift truck such as the mast the mast rollers and the ball bearings can influence the accuracy of the weightings Because of this it is important to keep the parts in good condition make sure there is no local friction in the mast of the forklift keep the system clean make sure you get a good lubrication of the mast and the chains take care for regular maintenance so that the condition of the s...

Page 11: ...possible When the pressure hose splits to multiple cylinders the sensor has to be mounted before the split Do not mount the sensor too close to the engine Large differences in temperature can influence the accuracy of the system If the truck is used intensively a piece of pipe or hose of 50 cm can be mounted between the sensor and the T piece The sensor is sensitive to temperature differences If t...

Page 12: ...sides Mount the T piece into the delivery pipe of the truck near the cylinder for the diversion of the pressure to the Safecheck Mount the T piece so that the sensor with the cable connector is facing down This is to prevent that there remains air in the sensor ...

Page 13: ...USER MANUAL Safecheck 13 S19 2 1 6 2 Mounting the sensor The connector on the sensor is G 1 4 BSP male ...

Page 14: ...heck 14 3 2 1 S13 1 2 S5 3 6 3 Position of the indicator 6 4 Installing the indicator bracket and the indicator The indicator should be easy to operate and to read from S13 1 2 Indicator with RAM mounting bracket option ...

Page 15: ...tem tidy and it minimizes the possibility of damage to the cable It may be necessary to thread the cable through small openings openings through which the 18mm connector does not fit In that case disconnect the cable at the indicator The system is supplied with a protective cover for the cable This can be used when the cable is near parts of the lift truck that become hot the cable is mounted near...

Page 16: ...sure that the chauffeur can see the stickers Make sure that there is minimal distance between the two arrows The larger the distance the more difficult it will be to gauge the height accurately Choose a practical height not too high because then lifting will take more time Moreover it may be dangerous to lift heavy loads too high Bring the forks to maximum height twice to remove any remaining air ...

Page 17: ...capacity of the forklift truck is different then the above mentioned e g 1 500 kg or 3 000 kg a higher capacity should be chosen For 1 500 kg the capacity will be 2 500 kg for 3 000 kg it will be 5 000 kg If you choose a setting and machine sticker with a smaller capacity and therefore a smaller graduation then the measurement range and accuracy will not be in accordance with the specifications Th...

Page 18: ...r capaciteit 3000 5000 kg 20 voor capaciteit 5000 kg Insert the value Change the values of the reading steps with the keys and 10 for capacity 3 000 5 000 kg 20 for capacity 5 000 kg Use the and keys and go to P05 for setting the appropriate capacity Confirm P05 The indicator shows the capacity 2500 kg 5 x 1 x NET kg lb NET kg lb ...

Page 19: ...k 19 NET kg lb NET kg lb NET kg lb 3 sec 12 13 11 Press Enter to return to the normal weighing mode Use the keys and and change the value to 3 for 3 000 kg 5 for 5 000 kg 10 for 10 000 kg Confirm the value of the capacity ...

Page 20: ...n the on off button for 23 sec until the indicator shows P01 do not let go Confirm with the 0 T button The indicator now shows P02 Change the value to 3 seconds using the and button Delay time 0 7 sec Depending on the type of pallet truck Confirm with the 0 T button The indicator shows a delay time 4 sec Push the 0 T button for 3 seconds to return to the weighing mode ...

Page 21: ...R MANUAL Safecheck 21 90 M1 OK OK 8 Calibration 8 1 Preparing for calibration Recommended calibration weight M1 2 3 of the trucks lift capacity Example 1 2 2t truck M1 1500 0 max 40 C 105 F min 10 C 15 F 0 ...

Page 22: ...cm NET kg lb 8 sec NET kg lb 8 2 Correcting the zero point 2 1 5 3 4 Lower the forks till the reference altitude 6 Turn the indicator on with the on off button wait till the indicator is finished with the boot routine Lift the system beyond the reference altitude ...

Page 23: ...USER MANUAL Safecheck 23 NET kg lb NET kg lb 7 Zero calibration is finished The indicator returns to the weighing mode automatically 8 ...

Page 24: ...bration single point 2 1 6 3 4 5 Use the and buttons to go to the middle value 1500 The top indicator bar flashes Use the and buttons to see the 3 programmed values on the display Push the 0 T button You can now put the values of the segments on zero With a single point calibration the middle and highest value have to be put on zero ...

Page 25: ... M1 500kg 8 7 12 9 10 11 Use the and buttons to go to the highest value 2500 Both indicator bars are flashing Put all segments on zero until the top indicator bar flashes Push the 0 T button Repeat this procedure until all values are on zero Single point calibration Use the and buttons to go to the lowest value 500 The lower indicator bar flashes ...

Page 26: ...econds The display counts down and the first calibration point is entered Push the or button until AP XX appears to leave the calibration menu Push the 0 T button until the screen shuts itself down The indicator shows the weight Push the 0 T button briefly The first segment starts flickering Use the and buttons to enter the right values Turn the indicator off and restart it 18 ...

Page 27: ... at which the stickers are on the carriage plate and lower them to the reference height For more information on the reference height see chapter 4 2 9 3 The indicator Display functions The Safecheck has a LCD display which shows the weight which is on the forks Help messages The following messages can be shown in the display HELP 1 The load measurement system has been overloaded HELP 2 The zero po...

Page 28: ...alue The digit on the right flashes Press ENTER for three seconds if the current setpoint value is required To enter a new setpoint value Press the PT key The display shows the current setpoint value The digit on the right flashes Press the key to go up a value or press the key to go down a value until the required value is reached Press ENTER to change the next value Repeat this procedure until t...

Page 29: ...afecheck 10 1 Correct zero point To check the zero point the forks have to be freestanding and they may not touch the ground They should of course be empty 2 1 3 Lift the forks free from the ground Check whether the display on the indicator shows a zero If not press the 0 T button ...

Page 30: ...Before starting a new weighing make sure that there is nothing on the forks Check whether 0 kg is still shown on the display See also the paragraph correct zero point Lift the load off the ground The Safecheck will display the weight When the load is higher than the relay set point value the alarm will go off 2 1 2 3 ...

Page 31: ...equipment on which this converter is installed The installer should also be trained and have experience in electrical systems of forklifts Follow the guidelines and the installation procedures as well as the guidelines of the forklift manufacturer to guarantee a safe an reliable installation Make sure that the power supply is connected safely Make sure the mounting surface is firm Make sure the mo...

Page 32: ...rectly on the battery and not in front of a main breaker Connect the red wire indirectly with plug in between with the positive energy source plus pole of the battery of the forklift Connect the black wire indirectly with plug in between to the negative power source negative pole of the battery of the lift truck Make sure the wire connectors are sufficiently isolated from each other Connect the ba...

Page 33: ... the negative energy source negative pole of the battery of the pallet truck Make sure the wire connectors are sufficiently isolated from each other Connect the battery back on the fork lift truck Read the label on the backside of the indicator for the right power supply Voltage regulator inside 12 VDC Voltage converter inside 20 100VDC 3 15A safety fuse in 12V wiring Forklift battery power supply...