1、 Precautions during installation phase

1. Fixed and angle control
   • Use the bottom fixing screw holes to securely install the sensor on the equipment base, avoiding loosening caused by vibration.
   • Ensure that the pull rope is level with the outlet, with a tilt angle not exceeding ± 3 °, to prevent friction between the steel wire rope and the outlet, protect the surface PTFE protective layer, and maintain detection accuracy.
2. Travel and speed restrictions
   • It is strictly prohibited to use beyond the travel limit. The pulling amount of the rope should be within the effective length range to avoid excessive force on the steel wire and prevent it from breaking.
   • The working speed should be kept as low as possible. Frequent high-speed use will significantly shorten the lifespan of the sensor, especially for models with resistance potentiometers inside.
3. Safety operation standards
   • After pulling out the rope, it is strictly prohibited to suddenly release it to prevent the high-speed recovery and swinging of the steel wire rope from damaging equipment or personnel.
   • When fixing the wire rope hanging head, the wire rope should be pulled out to a position greater than the maximum stroke, clamped with a tool, and then fixed to avoid instantaneous rebound and fracture.

2、 Operating environment management

1. Dust and dirt prevention
   • Prevent dust, debris, oil and water from entering the interior of the sensor, and prevent poor contact or short circuit of the measuring element.
   • When installing in harsh environments (such as high dust and humidity), protective devices (such as sealing covers and dust covers) need to be installed.
2. Temperature and Humidity Control
   • Keep the environment dry and avoid prolonged exposure to high temperatures (such as exceeding the rated temperature of the sensor) or humid environments to prevent internal component aging or insulation performance degradation.
   • High temperature resistant sensors should be selected in high-temperature environments to prevent the melting of coated steel wire ropes and the cracking of welding points.
3. Electromagnetic Interference Resistance
   • Separate the signal lines from the strong wires of the equipment, use grounding brackets, and ensure that the casing is grounded to reduce electromagnetic valve drive power, frequency modulation interference, and electrostatic interference.
   • When testing for electrostatic interference, a power cord can be used to connect the sensor cover screw to the metal section of the equipment. If the interference disappears, grounding measures need to be strengthened.

3、 Key points of daily maintenance

1. Appearance and connection inspection
   • Regularly check the appearance of the sensor for deformation or damage, and whether the cable is damaged.
   • Confirm that the wiring is correct to avoid sensor damage caused by wiring errors.
2. Maintenance of steel wire rope
   • When used outdoors, regularly lubricate the stainless steel wire rope to prevent rusting.
   • Regularly replace the steel wire rope to avoid fatigue fracture caused by long-term use.
3. Cleaning and sealing
   • Regularly clean the dust and debris on the surface, internal pulleys, and outlet of the sensor to prevent the steel wire rope from being obstructed during operation.
   • Check the sealing of the sensor to ensure good protective sealing and prevent moisture from entering and causing zero drift or abnormal output.

4、 Fault handling and prevention

1. Data instability handling
   • If the sensor output data jumps or is unstable, check whether the contact resistance of the electric brush changes due to impurities or oil stains entering, clean and recalibrate.
   • Check if the power capacity is sufficient to avoid display changes or measurement errors caused by power fluctuations.
2. Parameter calibration and replacement
   • Regularly calibrate the sensor accuracy to ensure that the error is within the standard range.
   • If the sensor is aging or the circuit connector is loose, replace the electronic components or replace the sensor as a whole in a timely manner.
3. Prohibition of unauthorized disassembly
   • The internal structure of the sensor is precise, and unauthorized disassembly may result in damage or loss of warranty eligibility. It needs to be repaired by professional personnel.