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 many guides are in the construction elevator
A guide frame on each side of the construction elevator, which is formed by using the section of the standard section in section 1.
Q:How do construction suspension scaffolding be handled in the people's elevator?
Suspension of steel and steel is used to avoid the elevator, and it is OK to encrypt it on both sides of the elevator
Q:Safe use of construction elevator
1. Construction enterprises must establish and improve the construction lifter of all kinds of management system, the implementation of the professional institutions and management personnel, clear the safe use and management responsibility system at various levels. The driver of the elevator should be trained by the competent department of the relevant administrative department for the training of qualified personnel. The driver should do the routine inspection, namely, when the elevator is first run, each class should be free and full of trial operation. 4. Establish and implement the system of regular inspection and maintenance, each week or each ten-day of elevator to conduct a comprehensive inspection, to find out the hidden dangers in accordance with the "armed" principle to carry out the rectification. After the rectification must be checked and confirmed by the relevant personnel, the safety requirement will be used.
Q:How many kw is the sc construction elevator
There is no fixed standard, which is widely adopted, 3X11KW, which is 33 kilowatts. The power of the motor is determined by the speed ratio of the decelerator. The most common lifter is 33 kilowatt, the speed ratio 1:16, 33 meters per minute.
Q:How many people are there for construction workers
Different models of different sizes, small can multiply 10 people, this time see a big, can take 14 people
Q:Construction elevator positioning should consider which problems
First make sure that the whole fence can be put down, and there should be no other extension of the fence that does not interfere with the lifting up and down of the cage Considering the length of the wall support, ensure the effective adjustment of the enclosed wall Then consider the installation of the wall support Consider whether access to the building is appropriate Some sites have been put into buildings directly, and some sites have considered scaffolding between them
Q:When does the construction elevator take off?
This is not specific time, it is the contractor's own
Q:Is the elevator detail a construction plan? Do you have a detailed picture of the elevator?
You're talking about the elevator or the elevator shaft, the elevator is the equipment, the elevator manufacturer has the working paper. As for the elevator well according to the data of zxtech figure design, general construction diagram and structure diagram, industry make a steel cylinder or cone steel structure party sometimes out construction diagram, according to the structure of the construction
Q:How does the driver of the construction elevator do the search for a sudden power failure
When the elevator is running in an abnormal condition, it should stop immediately and take effective measures to bring the ladders down to the ground floor. When the electric is out of control in operation, the stop button should be pressed immediately. The stop button is not allowed until the failure is ruled out.
Q:The tower crane is on a surface with the construction elevator, and only 2 or 3 meters away. Is that allowed
Cranes and elevators from very close, may be the reason for the sites or the position is not reasonable, so close to the distance as long as you ensure the tower crane and tower crane arm when rotating to the above the elevator after satisfying the end, must keep more than 2 meters with elevator recent distance. Or you can refer directly to the tower crane safety code, GB5144-2006.

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