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:: Industry Wide Problem ::
The loads moved by a typical material handling vehicle come in a variety of different shapes, physical sizes and weights. The majority of the forklift operators will experience some difficulty
with problems relating to the theoretical forklift lifting capacity
as indicated on the manufacturer’s ID plate and the unknown
load weights that are moved within the material operating facilities.
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When the weight of the load is not clearly marked and the loads are moved to various lifting heights, there is a danger of the vehicle stability. The travel speed and turning radius that cannot be easily judged will have a substantial effect on the load center of the vehicle. The forklift operator must deal with unknown elements that will have an effect on changes in the vehicle’s center of gravity that has moved outside of the "Stability Triangle" without the operator’s knowledge. It is well know that this can result in the possibility of the vehicle tipping which may cause damage to the goods and the equipment as well as compromising the operator’s safety.
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The ED2-SLL Series SkidWeigh is an electronic device that can be installed on any forklift truck in order to convert it into a mobile load weight indicator showing in % of vehicle lifting capacity. Every time a skid is picked up, the hydraulic pressure on the forklift is automatically activated and converted to a load weight measurement and presented to the operator. The newer ED2-Series is digital load weight indicator showing in % of the vehicle lifting capacity.
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Installation
:
The ED2- SLL Series SkidWeigh can be installed and calibrated
by a local forklift dealer technician or end user forklift mechanic.
The system is calibrated with known weights with a normal load center
of 24" on the forks, raised 3" to 4" of the ground.
Technical
Data :
Electrical
Voltage: 24 to 48 V DC
Current: Operating 200 mA
Environmental :
Operating temperature -25 ºC to + 70 ºC
Water and dust resistant
Triple shock mounting bracket included
Physical :
120 x 80 x 55 mm , polycarbonate enclosure
Technology :
Micro Controller
Pressure Transducer
Standard pressure port connection: G 1/4 , male thread standard
Pressure transducer adapter G1/4 to 1/4"-18 NPT male included in
kit
Optional pressure port : M 12x 1,5
Accuracy: +/- 0.3% of full scale
Repeatability: +/- 0.05% of full scale
Hysteresis: +/- 0.1% of full scale
Stability: +/- 0.2% full scale/yr
Temperature Information :
Compensation: 32° F to 175° F
Drift: +/- 0.03% /50 ° F
Medium: -22° F to 212° F
Ambient: 14° F to 175° F
Storage: -40° F to 212° F
Materials of Construction :
Casing: Stainless steel 1.4305 (AISI 303)
Weight :
95 grams
Shock Sensitivity :
<+/- 0.05% full scale @ 100g for 20 ms
Vibration Sensitivity :
<+/- 0.05% full scale @ 35g & 5-2000Hz
Response Time : < 0.1 ms, 10-90% FS
Frequency Limit : 150 Hz
Proof Pressure, 2,5 x range
Burst Pressure, 2,5 x range
Output, 3 wires 0 - 2,5 V DC
Protection :
Environmental: IP67
Fault :
Reverse polarity
Over voltage
Short circuit
Swiss Made Pressure Sensors
Standard outside thread G 1/4 male, sealed at back DIN3852/E with pressure tip orifice
| Interference Stability | Test Standard | Effects |
| Electrostatic discharge (ESD) | EN 61000-4-2 15 kV air discharge, 6kV contact discharge | No effect |
| High- frequency electromagnetic radiation (HF) | EN 61000-4-6 200mV, 80....1000Mz | No effect |
| Conducted HF interferences | EN 61000-4-6 30V. 0,15...80 Mhz | No effect |
| Fast transients (burst) | EN 61000-4-4 4kV | No effect |
| Surge | EN-6100-4-5 Line-Line, Line-Case 500V, 12Ohm, 9µF | No failure |
| Magnetic fields | EN 6100-4-8 30A/m, 50 Hz | No effects |
| Insulation voltage | 500 V DC ( optional 1000 V DC ) | No effect |
| Interference emit | Test standard | Effects |
| Conducted interference Radiation from housing | EN 55022 0,15... 30Mhz 30... 1000Mhz, 10 meters | No emission
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System Check Weighing Accuracy
:
+/- 0.5% to 1% of forklift lifting capacity
Display :
Six digits LED
Order Number :
ED2-SLL-SkidWeigh 
Integrated Visual Data Technology Inc. Oakville, Ontario, Canada. Copyright © 1996-2008