详情
Whats Load Moment Indictor
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-A100N 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.
Technical
Paramters
Display: LCD
Working Voltage: DC
24V±15%
System Error:
>±5%
Init Output Junction:
DC 24V, 7A
Working
Temperature:－20℃～60℃
Working Humidity:
95%(25℃)
Power
Dissipation：<
10W
Alarm
Volume：>60db
Application
Cases
Company
Information
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: Safe Load Indicator(Load Moment Indicator or Crane computer),
Crane Monitoring System, CCTV/Camera System, Load cell, Load pin,
Length Angle sensor, Anemometers, A2B limit Switch, 3-color
Alarming light,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 like Sarens,Tat Hong, Tiong Woon,Asiagroup, Big
Crane and Top 500 companies such as ABB, Macgregor,TTS,CNOOC,etc.
Products are been sold to over 30 countries and regions
globally.
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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