elevator parts load cell.low cost of load cell from china supplier EWD-H-J5

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Product Description:

elevator parts low cost load cell for passanger elevator
Type EWD-H-J5Elevator Load Weighing Device

INTRODTION MANUAL

l This system is applicable to all elevators with movable platform car (containing 3-channel programmable switch signals)

l Main characters:

1. Contactless inductive working mode, solid state relay output, no need to fix the original position of elevator overload switch, and to change structure of elevator platform car.

2. Electrical properties is in compliance with the standard of the International Electro-technical Commission.

3. Set up all parameters on the spot.

4. Adopt strong inductive magnet, improve the anti-interference ability to the utmost.

5. System carry scientifical computing out according to mathematical equations to automatically amend detention of error. It also has no-load auto zero capacity

6. It is totally convenient to adjust on the pot by means of artificial self-study or artificial displacement.

7. Control method of programmable output signal created by ourself is applicable to all kinds of traction elevator with movable platform car.

8. Integrated structure design: small size, easy installation.

Technical index

1

Scope of application

Applicable to all elevators with movable platform car. range of auto-detention (2.0mm car bottom displacement10.00mm ); range of manual set displacement: 2.5~9.9mm ( relate to parameter PD)

2

sensitivity

Rated load /200 (5.0kg when rated load is 1 ton)

3

System error

1.5% ( 5~40)

Working temperature range3.0%

4

nonlinearity

1.0%

5

Output form

Solid state relay

Programmable universal signal

① 5 channel programmable output mode are following: no- load, light- load, semi-load, heavy load, rated load and overload (user can freely set up the range of change.

② Each channel can be programmed as dynamic close or dynamic break contact.

③ Coding contact capacity: DC/AC 32V/15mA

Elevator load "no load~rated load", analog quantity:0~10Vlinearly changing

6

Storage environment

-25~75

7

Working environment

Temperature:-20~55

8

Relative humidity

20%~99%RH

9

Reaction time

0.25s

10

Power supply

AC/DC2410%V/150mA

11

Installation position

movable platform car of elevator

12

Machine dimension

45X45X903

l Working principle

Referring to diagram, by means of Holzer sensor this system tests displacement changing based on platform car of elevator and load elastic variation principle. It use single chip microcomputer to scientifically compute to correct error in terms of given parameter and measuring results based on mathematic equations, which accomplish effective load weighing of the elevator platform car.

l EWD-H-SJ3 TESTING LOAD OF INDUCTIVE ELEVATOR

  Appearance & interior structure

l Function comparison with other load weighing devices

EWD-H-J5

Other weighing devices

Working principle

Adopting Holzer sensor. Accomplishing contactless inductive working.

Advantages:

① Has long working life in that this system don't bear load of elevator.

② Width induction & high positioning precision.

③ No system damage arising from insufficient overload capacity and mechanical vibration.

④ Micro sensor & microcomputer make system highly intelligent and lower power waste.

⑤ Automatically amending detection error by means of digital. Good linearity.

Directly bear elevator load by the way of pressure sensor.  

Installing method

Only need to fasten the device in the middle of bottom of platform car or original position of mechanical switch in the condition of failure to change structure of platform car. Small size & Easy installation.

Need to change structure of  the platform car. Uneasy to install & more work.

Adjusting on the pot

① Thanks to the high intelligence personnel may complete adjustment of elevator weighing device on the spot after separately press the button of sensor two times following the completion of installation system sensor when elevator is no load or rated load.

② Elevator producer may directly complete quick adjustment of similar elevator by the way of setting-up the manual displacement.

Advantages: easy & quick to adjust

Complicated adjustment owing to the analog signal.

Connecting the interface of output signal on the select layer device

5-channel programmable output terminal could be set up by user themselves. Selection: no load, light load, semi-load, heavy load, rated load, overload; 0~10V analog output. It is convenient for user to finalize the items below: 1 vandal resistant function. 2 full bypass function. 3 energy saving function. 4 debugging system torque compensation.

Single function

Economic analysis

① High-performance to price ratio, easy to use, low breakdown.

② Less accessories, low additional cost & simple processing

Average

High additional cost

l Any information needed, please ask for the operation manual from us.  


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Q:How to save the elevator accident
Expert clew Do not take an elevator with no safety check mark. The elevator person is safe to protect the condition, the passenger has no life danger, after the alarm, the patient wait for the person to help. When emergency situations such as earthquake, fire and elevator water are taken, the use of an elevator should not be used and the emergency passage or staircase should be used instead.
Q:How much cable does the construction elevator 44KVA need?
44KW three phase power: 79A, BV5X16
Q:There are differences between the construction elevator and the construction elevator
The principle is different, the construction elevator operates in the litter box. The elevators are short for construction elevators, which are very high in the safety and performance of large facilities that can be used on the site. The construction elevator should be a dual-use lifting device.
Q:The difference between the derrick and the construction elevator?
You want the picture to still want to explain, the words to go to baidu search all can. The derrick is not to be multiplied by the person, the setting height is not more than 30 meters, now most of the place begin to phase out the use of the derrick, because the safety coefficient is low. The construction elevator can carry cargo, set up a height of 150 meters, and can carry a weight of 1-3 tons
Q:The construction elevator can not operate during the use of several stages of wind power
11, when the wind speed exceeds 20m/s and the bad weather, such as hail, not use the lift." I'm a construction elevator This is the norm It's about a six-stage wind by 20m/s.
Q:The construction elevator is commonly used in the process of the project
The construction elevator is commonly used in the process of the project. It is best to give a time period You're just saying one of its USES, I want to know what is the stage of what is going on in the project
Q:The safety officer shall be responsible for the work of the construction elevator
(1) the use of dual-use functions of the construction elevator, the installation and removal of the professional personnel issued by the competent department of construction administration shall be undertaken by the professional personnel. The personnel who have passed the training, qualified for the examination and obtained the certificate of the post shall be operated and repaired. (2) the capacity of the concrete base culture cooperation should not be less than 150kPa, the tolerance of 10mm and the drainage facility should be allowed. The distance between the guide bracket of the elevator and the wall of the building should be suitable, and the smoothness should be stable. (3) the lifter is used to control two directions, and the vertical control is 0.05%. Each floor shall have a platform, a passage, a fence and a protective door. No obstacles can be found. (4) the elevator that is installed in a dark place, and the passage shall be illuminated and a floor display lamp and floor number; A closed barrier should be set up in the well. The elevator shall be subject to acceptance by the technical director and the relevant departments, and shall be tested by the crash and shall be used in the rear. (5) in the use of or during the use of the elevators, the manufacturer or designated unit shall conduct the debugging and maintenance and verification. The lifter should undergo a fall test every three months and the fall test should be adjusted when the fall test exceeds 1.2 m. Every time it falls, the receiver should be repaired once.
Q:How does the construction elevator add up
You can use a ready-made high-altitude operating platform and a high-altitude working platform
Q:How many meters is the wall of the construction elevator?
I know the bunter lift is six meters so you can get it
Q:The maximum allowable deviation of the vertical is the vertical degree when the construction elevator is installed
The development of the elevator is in a peak state, because most of the manufacturers or individuals to improve the utilization efficiency of space, more options for multistory buildings, which also need a device to convenient up and down by the goods. Due to the common elevator cost is high, bearing capacity is low, not suitable for carrying dozens of tons or hundreds of tons of cargo, so developed a high bearing capacity of hydraulic lift to assist in the production and transportation of goods. The elevators are both safe and super loadable, and convenient for maintenance, making the special industry grow faster.

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