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Compression Load Cell for Elevators GS714


Features:
Used in elevators for safety, traffic control and energy control; Low profile; Amplified output (0.4 - 12.4Vdc);Located under the inner cage.

Outline Dimensions (in mm)


Dimensions(In mm)
The Model GS714 is a low-profile, pancake-type load cell, especially designed for use in elevators. Model GS714 is equipped with a built-in amplifier and is commonly placed between the inner and outer cages of the elevators cabin. The number of load cells required depends upon the cabin size and ranges from two to eight load cells (some may be dummies). Model GS714 is used for 3 reasons:

1.Safety - The load cell is an over load sensor, that indicates if the weight in the elevator passes a certain value that was allowed by the elevator designers. It also can be used prevent a child using the elevator, if the elevator control system does not allow it to drive if a demand from a low weight user (a child) is made.

2.Traffic Control - The load cell is a sensor that transmits load information to the elevator control system, used in buildings with more than one elevator. This information can be used to decide which elevator to send to a user, taking into account the load in the elevator, in order to shorten waiting time or prevent full/semi full elevators from stopping.

3.Energy Saving - The load cell is a sensor that transmits load information to the elevator control system, used in buildings with more than one elevator. This information is used in energy saving algorithms of the control system. A common elevator is constructed from an external cage with an internal cabin. The cabin is positioned on several rubber dampers, according to its size. Load cells (or dummies) are located between these dampers and the cabin (under the cabin). The number of load cells depends on the design

Technical Parameter:
Rated load 500kg
Sensitivity (1.0±0.1%) mV/V
Combined error ±5% F.S
Creep Error(30min) ±0.02% F.S
Zero balance ±1% F.S
Temp. effect on zero: ±0.02% F.S/10℃
Temp. effect on Span: ±0.02% F.S/10℃
Input resistance: 385±5Ω
Output resistance: 352±2Ω
Insulation resistance: ≥5000MΩ
Operating Temperature Range -30~+70℃
Maximum safe over load: 150%F.S
Ultimate over load: 300%F.S
Recommend excitation voltage: 10~12V DC
Maximum excitation voltage: 15V DC
Sealing Class: IP65
Element material: Alloy Steel, Stainless Steel
Cable: Length=L:5m
Citation GB/T7551-1997/ OIML R60
Mode of Connection Red(Input+),Black(Input-),Green(Output+),White(Output-)