elevator weighting sensor,elevator load cell,load cell, weighting sensor EWD-H-J3

EWD-H-J3 Elevator parts load weighting device /load cell

Type EWD-H-J3 Elevator Load Weighing Device

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.

• 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 kin.ds of traction elevator with movable platform car.
• Integrated structure design: small size, easy installation.

• 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. ②　Each channel can be programmed as dynamic close or dynamic break contact. ③　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/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.

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