Good elevator parts load sensor,load cell EWD-GD match EW-RLG-SJ3

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Product Description:

EWD-RLG-SJ3 elevator load weighing device

l This system can be adopted to all kinds of fixed car 2:1 traction drive elevator with three-way programmable switch output.

l Main features:

1. Equipped with variety of intelligent sensors: A. Ultrathindisctype load sensor to direct detect the changes of the car load, there is no need to change the traction taper sleeve rodB. Choosing the character intelligent tension sensor with easier installationC. The convex stress intelligent sensor is specially suitable for elevator manufacturer. D. Adopting the character load sensor.

2. All operating parameters can be set at the spot.

3. The unique programmable output signal control method can meet the the requirements of the weighing signal of varieties of fixed car platform.

4. It is easy to operate the self-learning model at the spot. The user can choose 20~100% rated self-learning model or rated set modelfor type A, quite easy to operate.

5. With the ability to amend the working parameters automatically and

self-adoption intelligent landing compensation.

l Technical parameters



Being applicable to all traction elevators fixed car platform (less than 60 landings) with the load of 500kg-5000kg.


Floor Compensation

Auto accommodating to the following compensation methods: Up and down leveling; Up command +door zone; Fuzzy and intelligent.



Elevator Rated Capacity/200 (Example: The rated capacity is 1000kg, and the sensitivity is 5 kg) [This data may be affected by elevator mechanical performance]


System error







The method of circuit parallel connection is applicable to the signal source system of DC 12-32V. Also, the interior fault of this system does not affect the original operation mode of elevator.


Output mode


Programmable universal signal

3-channel programmable output models are: no load, light load, semi load, full load, heavy load, rated load, and overload(customer may set the changing range freely.)

Each channel can be programmed as dynamic Close or Open contact.

Contact Capacity: DC/AC 48V/100mA

Analogue quantity

Overall Compensation Range 0-10V, -10V~+10V. 0V~+5V


Ambient Temperature

Temperature: -20~50


Relative Humidity



Reaction Time

0.5 Second, The communication distance between the intelligent and control is 0-400m.


Power Supply



Installation place

Sensor section: A the place of traction rope shackle

Controller section: control Cabinet in machine-room. See the figure 3 for installing dimension.


Overall size

Sensor section: see figure[3]: controller section115×90×40mm3

Description of the System Controller Terminals

l Working principle and installation method:

With the adoption of highly accurate intelligent ”tension” or ”load” and “stress” sensors, the electric signal produced by elevator car load changing is tested and inspected. System sensor installed at the traction rope hitch: Type “EWD-LG-SJ3”With the adoption of serial communication technology, the signal can be transmitted remotely,

highly accurately without loss.Type “EWD-RLG-SJ3”There is an 8-meter-long signal transmitting cable with the sensor. And the single-chip built-in the controller may do scientific calculations fulfilling the aim of weighing the effective load in elevator car.

Sensor of EWD-GA/ GB/ GC/ GD



1. For sensor in conjunction with EWD-GW1transducer, a cable

of 1 meter long is supplied with it.

2. For directly connected sensor, default length of the cable supplied with it is 8 meters.









Sensor Type

“Disc” type Load


Character “”type Tension Sensor

“Convex” type Stress


Character “”type

Load Sensor

Controller of EWD-RLG-SJ3

Install at the rope

hitch of car top


Application Range

Be applied to elevator of 2:1 roping drive with the rope hitch at

the car top. The sensor uses 2 wires of the car traveling cable for serial communication with the controller.













Illustration of the Appearance of Sensor and Install Method

AStandard “Disc” type Intelligent loading Sensor

Installing and fitting scheme:

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