详情
What is a Load Cell & How Does it
Work?
A load
cell (or loadcell) is a transducer which converts force into a
measurable electrical output. Although there are many varieties of
force sensors, strain gauge load cells are the most commonly used
type.
Except for certain laboratories where precision mechanical balances
are still used, strain gauge load cells dominate the weighing
industry. Pneumatic load cells are sometimes used where intrinsic
safety and hygiene are desired, and hydraulic load cells are
considered in remote locations, as they do not require a power
supply. Strain gauge load cells offer accuracies from within 0.03%
to 0.25% full scale and are suitable for almost all industrial
applications.
How does a load cell
work?
A load
cell works by converting mechanical force into digital values that
the user can read and record. The inner working of a load cell
differs based on the load cell that you choose. There are hydraulic
load cells, pneumatic load cells, and strain gauge load cells.
Strain gauge load sensors are the most commonly used among the
three. Strain gauge load cells contain strain gauges within them
that send up voltage irregularities when under load. The degree of
voltage change is covered to digital reading as
weight.
When to
use a load cell?
A load
cell measures mechanical force, mainly the weight of objects.
Today, almost all electronic weighing scales use load cells for the
measurement of weight. They are widely used because of the accuracy
with which they can measure the weight. Load cells find their
application in a variety of fields that demand accuracy and
precision.
Why Choose Three Pulley Tension
Sensor?
three pulley tension sensor: The
three pulley tension sensor adopts high quality
material, durable in use. Three pulley tension sensor is made
of high quality material for maximum durability.
- the three pulleys load sensing adopts
engineering machinery special high strength nylon
wheel synthetic materials, widely used in large cranes,
manned elevator, etc., have strong adaptability of wire,
low wear rate characteristics, easy installation and
maintenance, than common iron pulley has better
mechanical properties.
- the three pulleys load sensing using rope
tension stress produced reaction to produce pulley shearing
force by measuring hang the weight, precision reliable, range
range, protection grade can achieve IP67, be applicable to the
outdoor environments.
- the
three pulleys load sensing adopts gimbal fixed, convenient
installation, light weight, also suitable for the wire rope in
the sport the swing, have good force measurement
results.
- applicable to vehicle cranes, crawler cranes, etc
without fixed ropes head lifting equipment
Technical
Parameters
Specified
load:start from500KG
Temperature Effect On Output:±0.02%F.S/10℃
Max overload:
250%F.S
Sensitivity:
1.0±0.005mV/V
Input
impedance: 750±20Ω
Driving voltage: 10~12V DC
Synthetic
errors: ±0.02%F.S; ±0.03%F.S Output impedance:
703±3Ω
Max driving
voltage: 15V DC
Creepage(30 min): ±0.02%F.S
Insulation
resistance: ≥5000MΩ Sealed
IP: IP67
Null balance:
±1%F.S
Working
temperature range:-30~+70℃
Material: high
strength nylon wheel synthetic material
Null
temperature influence: ±0.02%F.S/10℃
Safe overload:
150%F.S Cable: Φ 5mm
Pacaking
Details
Applications
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.
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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