Elevator under-car weight sensors are critical components in the elevator industry, installed directly beneath the elevator car floor to accurately measure load weight. These sensors utilize load cells that convert minute changes in electrical resistance into precise weight measurements. When a load is placed in the elevator car, the pressure is transferred to the load cells, which then convert these pressure changes into electrical signals.
Supply voltage
24V DC ~ 40V DC
Maximum power consumption
0.4 Watt
Sensor type
Magnetic Flux Measurement
Weight display accuracy
4 Digit – 0000 ~ 3000 Kg
Weight measurement accuracy
5Kg
Measurement speed
85 sample/second
Outputs
Relay OVL:
120V AC, 0.5A
24V DC, 1.2A
Calibration
With volume and enter button
Operating temperature
-25C ~ 80C
Capacity Measurement
3000Kg
Maximum environmental humidity
90%
Insulation class
IP52
Electrical conductivity
100%
Frequently Asked
Installation at the central point under the cabin, provided that there are vibration dampers with appropriate elastic properties.
Installation at the central point under the cabin, provided that there are vibration dampers with appropriate elastic properties.
Installation on the spring-loaded rope head on the cabin side in the machine room.
PWR Indicator (Red Light): Indicates that the device is powered on.
OVL Indicator (Yellow Light): Indicates the active state of the overload.
Display: Shows weight numbers and menu symbols.
Enter Key: Used to enter the menu and save measurements in the device memory.
Volume Control: Increases and decreases numbers and menu settings.
It can be connected to a DC voltage ranging from 15 to 40 volts, ideally 24 volts.
The three wires NC, NO, and COM are related to the OVL (overload) relay and can be used for any type of elevator control panel. Depending on whether your control panel sees the overload as closed (NC) or open (NO), you should use the brown wire (as the common overload), and the blue wire (as the open connection) or the yellow wire (as the closed connection).
At least 350 kilograms.
In a 1:1 suspension system, calibration should be done on the lowest floor.
In a 2:1 suspension system, calibration should be done on the middle floor (where the counterweight is opposite the cabin).
Yes. An incorrect magnet pole direction will result in the device not displaying -00-.
According to the installation manual, this issue can be due to one of three reasons:
- The direction of the magnet pole is incorrect.
- The distance between the device and the magnet is either too large or too small.
- The magnet is not centered on the device.
According to the manual, recalibrate the device. The important point in this section is that the magnet must be centered on the device.
Ensure that the cabin’s vibration dampers are functioning correctly.
From top to bottom:
- Brown
- Yellow
- Blue
- Black
- Red