Elevator Levelling Sensor
Overview
Elevator levelling sensors are the magnetic or optical devices that read the floor vane in the shaft and tell the controller when the car is level with the landing. They decide stopping accuracy, which is what passengers judge the lift by. One Elevator supplies replacement sensors, vanes and the mounting brackets used in most levelling systems.
Applications
They are used in passenger lifts, hospital beds lifts, freight elevators and service lifts in residential blocks, office towers, hotels and hospitals, and are made to fit OTIS, KONE, Schindler, Mitsubishi, ThyssenKrupp and Fujitec controllers. Poor levelling accuracy is almost always traced back to a dirty sensor or a bent vane rather than the drive. In hospital and freight applications, accurate levelling also protects trolleys and beds at the threshold. Sensors on the car top are exposed to dust and oil, so we recommend a sealed version on machine-room-less installations.
Types and Range
- Magnetic reed and Hall-effect levelling sensors
- Optical and slot sensors for high-accuracy levelling
- Two-sensor and three-sensor sets for re-levelling systems
- Floor vanes, magnet plates and shielding brackets
- Sensor cables, connectors and junction boxes
- Pre-levelling and re-levelling sensor kits
Sensing distance and output logic are matched to your controller input.
Selection Guide
Order by checking three things: the sensor type and output (NPN, PNP or relay), the sensing distance, and the supply voltage. Also confirm the vane width, since a narrow vane with a slow controller produces overshoot and a second re-levelling cycle. Where vane brackets are bent, the bracket must be replaced with the sensor or the fault will return. Every sensor is tested for switching accuracy, response time and temperature drift. On higher-speed lifts we recommend a two-sensor arrangement, which holds accuracy across the full travel.
Ordering and Lead Time
Stock sizes dispatch in 5-7 working days; matched sensor and vane sets take 10 days. Send your controller model and vane dimensions and we will confirm fitment before you order.
Frequently asked questions
- How do I select a levelling sensor?
- Send the controller model and the vane dimensions, and confirm the sensor output type and the switching distance.
- Why is the car stopping out of level?
- A drifted sensor, a bent vane or a dirty sensing face. Levelling faults are usually the reference rather than the drive.
- Can you supply the sensor and vane as a set?
- Yes, and matched sets take about ten days. Buying them together avoids the mismatch that causes a repeat levelling fault.
