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INSTALLATION AND USER MANUAL
RAVAS SAFECHECK
We would like 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
USER MANUAL – Safecheck
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Table of Contents
Summary of Contents for Ravas SAFECHECK
- Page 1 INSTALLATION AND USER MANUAL RAVAS SAFECHECK We would like 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.
- Page 2 This manual has been compiled with all due care, but the manufacturer cannot be held responsible for any consequences of errors. All rights are reserved and no part of this manual may be reproduced in any way. USER MANUAL – Safecheck...
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Page 3: Table Of Contents
9. Bringing the system into service 9.1 Auto start 9.2 Using the reference height 9.3 The indicator 9.4 The touch panel of the Safecheck 9.5 Enter setpoint value (limit value) 10. The functions of the Safecheck 10.1 Correct zero point 10.2 Gross weighing... -
Page 4: Introduction
Introduction This manual describes the installation and use of the Safecheck. The Safecheck is a hydraulic measuring system for forklift trucks and stackers. The installer must be informed of the contents of this manual. Follow the contents of the manual precisely. This manual should be kept on a safe and dry place. In case of damage or loss the user may request a new copy of the manual from RAVAS. -
Page 5: Principles
Principles 3.1 How the hydraulic system works The Safecheck is an hydraulic weighing system for forklift trucks and stackers. The load measurement system measures the oil pressure with an oil pressure sensor. The pressure in the lifting system depends on the load on the fork lift system. By measuring the oil pressure in the cylinder, you will get an indication of the weight that you are lifting. -
Page 6: Recommendations To Increase The Accuracy
20 reading steps; Make sure the system is relieved before beginning a new weighting; • If the Safecheck sytem is installed on a new lifttruck, it is recommended that you perform a • recalibration after 3 months and 1 year. -
Page 7: Overview Of The Parts
Overview of the parts The Safecheck weighing system exists of two main parts: 1. Indicator 2. Sensor The sensor has to be connected to a T-link on the hydraulic system of the forklift truck. The indicator, the control panel, runs on 6 Volt batteries. On the drawing below you can find the parts of this sytem. - Page 8 Type B: 2 cylinders on both sides Indicator hydraulic Hydraulisch valve block ventielblok T-stuk t-part Sensor sensor cable Sensorkabel USER MANUAL – Safecheck...
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Page 9: Before Setup
Check the forklift truck on the following points before you begin the installation: Capacity of the forklift truck The Safecheck system can be installed on a forklift truck with a maximum capacity of 99 ton. Maximum pressure in the hydraulic system The Safecheck works optimally at an oil pressure up to 350 bar. -
Page 10: The Condition Of The Mechanical Parts Of The Forklift Truck
The condition of the mechanical parts of the forklift truck After you have installed the Safecheck on the forklift truck, the weighing system will be part of the truck. Especially the mechanical parts of the forklift truck, such as the mast, the mast rollers and the ball bearings can influence the accuracy of the weightings. -
Page 11: System Setup
Choose, if possible, a place to mount the sensor where there are the least steering and safety valves between the sensor and the cylinder. Type A: 1 central cylinder Mount the T-piece into the delivery pipe of the truck near the cylinder for the diversion of the pressure to the Safecheck. USER MANUAL – Safecheck... - Page 12 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. USER MANUAL – Safecheck...
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Page 13: Mounting The Sensor
Mounting the sensor The connector on the sensor is G 1/4 "BSP male USER MANUAL – Safecheck... -
Page 14: Position Of The Indicator
Position of the indicator The indicator should be easy to operate and to read from! Installing the indicator bracket and the indicator Indicator with RAM mounting bracket (option) USER MANUAL – Safecheck... -
Page 15: Mounting The Sensor Cable
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 moving parts. • USER MANUAL – Safecheck... -
Page 16: Remove Any Air From The Hydraulic System
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. 90° 32 " 80 cm Attention: In a dirty operating environment it is better to mark the reference altitude permanently USER MANUAL – Safecheck... -
Page 17: Settings
Push the 23 sec. on/off key (do not let go). Switch off the indicator with the on/off key. kg/lb kg/lb Confirm P02 The indicator shows the graduation: 50 (50 kg) 50 for capacity 2.500 kg. USER MANUAL – Safecheck... - Page 18 20 voor capaciteit > 5.000 kg. > 5000 kg. kg/lb kg/lb Use the ˄ and ˅ keys Confirm P05. and go to P05 for The indicator shows setting the the capacity 2500 kg. appropriate capacity. kg/lb kg/lb USER MANUAL – Safecheck...
- Page 19 3 for 3.000 kg 5 for 5.000 kg 10 for 10.000 kg kg/lb kg/lb 3 sec. Confirm the value of Press Enter to return to the normal the capacity weighing mode. USER MANUAL – Safecheck...
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Page 20: Change The Delay-Time
Delay time: 0–7 sec. Depending on the type of pallet truck. kg/lb kg/lb 3 sec. Confirm with the Push the 0/T 0/T button. button for 3 The indicator now seconds to shows P02. return to the weighing mode. USER MANUAL – Safecheck... -
Page 21: Calibration
8. Calibration Preparing for calibration 90° Recommended calibration weight: M1=+/- 2/3 of the trucks lift capacity. Example#1: 2.2t truck => M1 = 1500 min -10°C max 40°C 15°F 105°F USER MANUAL – Safecheck... -
Page 22: Correcting The Zero Point
90° 90° 32" 32" 80 cm 80 cm Lift the system beyond the Lower the forks till the reference altitude reference altitude. kg/lb kg/lb 8 sec. USER MANUAL – Safecheck... - Page 23 Zero-calibration is finished! The indicator returns to the weighing mode automatically. USER MANUAL – Safecheck...
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Page 24: Weight Calibration (Single Point)
Use the ˄ and ˅ buttons Push the 0/T button. to go to the middle value You can now put the (1500). values of the segments on zero. The top indicator bar flashes ! kg/lb kg/lb USER MANUAL – Safecheck... - Page 25 Single point calibration kg/lb 32" Use the ˄ and ˅ 80 cm buttons to go to the lowest value (500). The lower indicator bar Place a known weight on the forks. flashes. (M1 = 500kg) USER MANUAL – Safecheck...
- Page 26 0/T button for menu. 3 seconds. The display counts down and the first calibration point is entered. kg/lb kg/lb Turn the indicator off Push the 0/T button until the screen shuts and restart it. itself down. USER MANUAL – Safecheck...
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Page 27: Bringing The System Into Service
For more information on the reference height see chapter 4.2 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. -
Page 28: The Touch Panel Of The Safecheck
The touch panel of the Safecheck Each key has an operational and an entry function. Operational function Entry function confirm and zero setting and digit to the left automatic tare enter set point decrease flashing digit (limit value) totaling increase flashing digit... -
Page 29: The Functions Of The Safecheck
10. The functions of the Safecheck 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. kg/lb 32" 80 cm Check whether the display on Lift the forks free from the ground. -
Page 30: Gross Weighing
32" The Safecheck will display the weight. 80 cm When the load is higher than the relay set point value - the alarm will go off! Lift the load off the ground. -
Page 31: Power Supply
WARNING! Only qualified personnel should perform an installation to a forklift. Improper installation can injure the operator or cause damage to the system, inverter, and/or the other options! USER MANUAL – Safecheck... -
Page 32: Power Supply By The Trucks Battery
Stekker Indicator +12 V Brown Blue Black Zekering 3,15 A converter omvormer filter Elektrische truck Electrical forklift Forklift Heftruck truck converter Omvormer 3,15 A Indicator Plug battery truck Stekker accu truck Filter Optioneel Optional USER MANUAL – Safecheck... - Page 33 Read the label on the backside of the indicator for the right power supply. Voltage regulator (inside) + = 12 VDC Voltage converter (inside) + = 20-100VDC Forklift battery power supply Combustion truck Brandstof truck Forklift truck Heftruck Converter Fuse Zekering Omvormer 3,15 A Indicator USER MANUAL – Safecheck...