Description
What\'s Load Moment Indicator
Meaning?
Load
Moment Indicator (LMI), also known as Rated Capacity Indicators
(RCI), or a Safe Load Indicator (SLI) or an Automatic Safe
Load Indicator (ASLI) is a device which is installed on mobile or
portal cranes to alert the operator if the lift is exceeding the
safe operating range of the crane. In some cases, the device will
physically lock the machinery in circumstances it determines to be
unsafe. LMI systems are usually composed of a microprocessor
connected to various sensors on the crane itself. The LMI measures
the angle and extension of the boom along with the load weight and
compares this with the manufacturer\'s specifications to determine
if the lift is safe.
A safe load indicator has the capability of detecting the angle,
weight of load lifted, and ground radius of any lifting device. It
controls the lifting equipment to the level that it tries to keep
the crane functioning as per the manufacturer\'s suggested safety
charts.
The crane is fitted with multiple sensors, for each of the measured
parameters, which are then further displayed in the operator\'s
cabin for his benefit.
How Does a Load Moment Indicator Alarm
Working?
Sound
and light alarm function: when the crane boom work amplitude limit
close to work, when lifting load and torque device close to the
permitted load limit, torque system issued a warning of slow
beeping sound. Warning lights flashing slowly torque system.
When jib frame work scope to work limit, when the lifting load and
torque reaches equipment when the permitted load limit moment send
urgent alarm beeping sound. Shortness of loading system alarm
indicating three color warning light flashing.
•The LMI is an operational aid that warns a crane operator of
approaching overload conditions and over hoist conditions that
could cause damage to equipment and personnel.
•The device is not, and shall not, be a substitute for good
operator judgment, experience and use of accepted safe crane
operating procedures.
•The responsibility for the safe crane operation shall remain with
the crane operator who shall ensure that all warnings and
instructions supplied are fully understood and observed.
•Prior to operating the crane, the operator must carefully and
thoroughly read and understand the information in this manual to
ensure that he knows the operation and limitations of indicator and
crane.
•Proper functioning depends upon proper daily inspection and
observance of the operating instructions set forth in the operators
manual
Why Choose WTAU Brand Crane
Load Moment Indicator
System?
Our
WTL-A700 crane safe load indicator (SLI) can be fitted with any
type crane that is used to alert the operator if the lift is
exceeding the range. Our Offered systems are manufactured using
excellent quality components. So, You can rest assured that our
crane safe load indicators give you a long functional life and
hassle free performance.
WTAU Brand Crane LMI System
Advantages
• Easy to Install
• Accurate display of value
• Excellent Sensing
• High Performance
• Low Maintenance
• Can fitted with all types (mobile, crawler, tower
etc) cranes
• An optional data logger that can be used to record
all the lifting activity
• All Our Indicators comes with the 1-year
warranty.
If youre looking for crane indicators that save time and money, the
WTL-A700 safe load indicator is a fully capable LMI at a
cost-effective price. The WTL-A700 LMI is perfect for telescopic
boom cranes & lattice boom crawler cranes giving you all the
benefits of a crane safety system without all the expense.
The 8 full color touched LCD display is easy to read in bright
sunlight and has selectable units and languages (English &
Spanish). It is rated IP65 for use in open and closed cabs.
The WTL-A700 will monitor the load, capacity, boom angle,
length, radius and ATB on both hoist lines. All WTL-A700 LMIs
for mobile cranes & crawler cranes can be sent pre-calibrated
and load charts and calibration data can be saved or uploaded via a
USB connection.
Technical
Parameters
|
Style No.: |
WTL-A700 |
|
Display: |
8
inch LCD |
|
Operating Temperature: |
-20\'C--70\'C |
|
Operating humidity:
|
95%(25\'C) |
|
Signal
input: |
< =6 Channels |
|
Control output: |
< =6 Channels |
|
System composition
error: |
< =5%(F.S) |
|
Power
consumption: |
< 30W |
|
Alarm volume:
|
>60db |
|
IP
grade: |
IP65 |
|
Power Supply: |
AC220V/DC24V |
Full
Set Crane Lmi System Components
Company
Introduction
Weite
Technologies focusing on crane lifting equipment safety management
since 2002,our own brand is WTAU,China Top 3 brand OEM manufacturer
of load moment indicator system.
We help protect cranes and lifting
equipment under safety working condition with customized WTAU
Load Moment Indicator(LMI) System, Crane Management
System,Safe Monitoring System, Anti Collision System, Crane Remote
Monitoring &Management Platform,Marine CCTV Camera System,
Overload Limiter, length angle sensor, load cell sensor,
Anemometers, A2B anti two block device etc.
Nowadays, WTAU products
are widely used in marine,electrical, chemical, steel, metallurgy,
construction, ports and other industries, and have been wide
spreaded to over 60 countries and regions.
FAQ
Q1:Who are you?
A1:This is Cherry from Weite Technologies Co.,Ltd. I am the Crane
Safety Manager.
Q2: What does your company do?
A2: We assist crane owner and operators to keep their crane fleets
under safe working conditions and zero accidents. No matter
Crawler, Mobile, Tower, Gantry, Overhead or Offshore Cranes and so
on.
Q3: What are the products?
A3: Load Moment
Indicator(LMI), Crane Safety Monitoring System, Tower Crane Anti
Collision System,Offshore Crane Collision Avoidance System ,Marine
CCTV Camera System, Crane Safety Device, Crane Remote Monitoring
&Management Platform,Overload Limiter, Length Angle Sensor,
Load Cell Sensor, Anemometers, Anti Two Block Device
etc..
Q4: Is the company well-reputed?
A4: It is a China Top 3 brand focusing on Crane Safety Protection
Equipment. We are also Safety Partners for Global Top 100 Crane
Owning Companies .
Q5: My Crawler Crane\'s display could not show
anymore, can you assist us?
A5: Yes, we can replace a new one for you with WTAU LMI system,
which will make your old cranes back to normal working again.
Q6: What are the components of your LMI
system?
A6:Pls refer to the below pic for compulsory and optional parts.
(display, control box, load sensor, angle sensor, 3-color alarm
light, A2B limit switch, anemometer)
Q7: How you assure the quality?
A7: The Product Warranty for the total item is 12 months. Any
problem after installation, we will change the new one for
free.
Q8: How to install the LMI?
A8: English User Manual(include all the details of each item) will
be offered for installation and trouble shooting(refer to the pic
below). Also free Remote Instant Technical assistance would be
offered by our english engineers. Or we can send our engineers to
assist you locally(for a fee).
Q9: How to contact you?
A9: Send your inquiries to us, will reply you within 24 hours.
Q10: How much is your LMI system?
A10: Send me the crane model(like Kobelco 7055, Sumitomo SCX500),
hook number, working conditions(Luffing Tower Working Condition,
Pilling) and special requirement and the load chart . Your contact
info is a must.
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