Active Member
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[China]
Address: 7D，Block A, Olympic Building, 8th Chang An North Road, Xi'an, Shaanxi,China
Contact name:Cherry
Xi'an Excellent Electromechnical Co.,Ltd |
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EWD-H-J3 Elevator parts load weighting device /load cell
INTRODTION MANUAL
This system is applicable to all elevators with movable platform
car (containing 3-channel programmable switch signals)
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.
3Set up all parameters on the spot.
1 | 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) | |||
2 | sensitivity | Rated load /200 (5.0kg when rated load is 1 ton) | |||
3 | System error | ≤1.5% ( 5~40℃ ) | Working temperature range≤3.0% | ||
4 | nonlinearity | ≤1.0% | |||
5 | Output form | Solid state relay | Programmable universal signal | ① 3 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. | |
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/DC24(10%)V/150mA | |||
11 | Installation position | movable platform car of elevator | |||
12 | Machine dimension | 45X45X90㎜3 | |||
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.
| EWD-H-J3 | Other weighing devices |
Working principle | Adopting Holzer sensor. Accomplishing contactless inductive
working. | 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. | Complicated adjustment owing to the analog signal. |
Connecting the interface of output signal on the select layer device | 3-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. | Average |
Any information needed, please ask for the operation manual from
us.
