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EWD-H-XJ4 Elevator Load Weighing Device
l This system is applicable to all elevators with movable platform car (containing 4-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.
l Technical index
Scope of application
Applicable to all elevators with movable platform car. range of auto-detention (2.0mm ≤car bottom displacement≤10.00mm ); range of manual set displacement: 2.5~9.9mm ( relate to parameter PD)
Rated load /200 (5.0kg when rated load is 1 ton)
≤1.5% ( 5~40℃ )
Working temperature range≤3.0%
Solid state relay
Programmable universal signal
① 4 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 Contact capacity: DC/AC 32V/15mA
movable platform car of elevator
l Product appearance, internal structure and interface specifications：
J1,J2,J3,J4 4 channels Solid state relay output
System power supply：DC/AC24V(±10%)／150mA
absolutely can't put this device "P7, P8" outside of the directly connected to external power supply output port, thus may cause permanent damage shall not be responsible for the company
1. J1～J4internal solid state relay, Maximum load capacity：DC/AC 32V/50mA。
2. Output signal programmable for "no-load ~ over-load", to participate in the elevator control logic
l Machine dimension and installation schematic diagram
Outlook dimensioninstallation schematic diatgram
1. As near to install this device in the bottom or the elevator the overload switch location, near the center of the system should be installed on the bearing beam of the elevator to the bottom, induction magnet adsorption in the bottom, and the marking surface of weighing device sensing point;
2. System bracket should be made on the basis of the condition of the elevator, but must use the not easy to deformation material, the better of the thickness is more than 4 mm or with stiffener, to prevent sway;
3. Adjust the device, make the bottom magnet aimed at center of end surface. At the same time must ensure that the device end face and the magnet end face parallel to each other.
l If you need details, please send us for this product "user manual".
- 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 is the construction elevator installed
- The construction elevator should choose a good position first, do the elevator foundation, at the same time make the wall in the setting process. This one has the corresponding elevator basic drawing, should the professional personnel carry on setting up and disassembling.
- Q:Construction elevator positioning should consider which problems
- The construction elevator is short for construction. It is an important equipment in high-rise building construction, and construction site accident hazards easily, because it can cause many major accidents, injuries in the inspection should be listed as a key to check the content. Based on past accidents and on-site inspections, we often find topics that we think should be examined in a critical area
- Q:Why is the construction elevator not up to the roof
- The free end of the construction of the lift height is only 7.5 meters high, general construction elevator drive now is the case, so the hoisting cage height and drive around 4.5 meters high, the other national standard construction elevator ceiling limit moves, drive above about 1.8 meters away from the top of the rails. So it's the free end of the construction elevator that can't satisfy the roof. As long as they can set up effective adhesion measures, they can also get on the roof.
- Q:When does the construction elevator take off?
- If the elevator is installed later, can the construction elevator be demolished at this time? It should not be removed because the elevator is used by the local technical supervision bureau. The unused elevator will be fined 5-200, 000 fine and the elevator installation unit will be revoked. No one will take that risk! It is usually done on rooftops, indoors and outdoors, and the materials have been transported upstairs. It is best to be able to remove the elevator when it is finished, so it doesn't affect the progress.
- Q:How large a leakage protector is used for the construction elevator
- A leakage switch with a rated current of 100-160a. The rated action current of the second class is 50-75hm. The rated action current is 30-45hm. The action time is less than or equal to 0.1 s. Comply with safety specification according to this 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:Is there a specification requirement for the floor door of the elevator to the floor? How high
- There is no technical requirement, usually to see party a's request, want to be with party a the ground level that finish finished decorate just like, can,
- 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:How long does the construction elevator do a crash test
- You don't have to do it now. Go straight to the test center. A site is tested once
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