WTL-A200 Torque limiter

1. Product Introduction

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​WTL-A200 Torque limiterIt is the experience of Weite ElectronicsFifteen years of market validationThe intelligent safety control core of the crane. It adopts a 240×128 large-screen blue light LCD display to dynamically refresh key parameters such as the main hook load, boom amplitude and load rate in real time. When the load rate exceeds the limit, the screen turns red instantly and triggers a beeping alarm of over 60dB, providing national standard-level overload protection for equipment such as truck cranes and port gantry cranes.

​2. Main functions​

​Five-dimensional signal integration monitoring and dual protection​

• ​Global signal acquisition​
  "Synchronous processing"Two weight signals(Such as SHL force sensors) +One Angle signal(Boom inclination Angle) +One height signal(Prevent overrolling) +One long measurement signal(Amplitude feedback
• ​Level 3 Security response​
  → ​LoadThe screen flashes yellow as a prompt
  → ​OverloadRed light lock interface + sound and light alarm
  → ​LimitAutomatically cut off the hoisting power
• ​Extended control interface​
  Five relay outputs control peripheral devices
  RS485/4-20mA supports remote centralized control

​3. Typical application configuration

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​Tire crane protection plan​

​① Deployment of sensor networks​

• ​Top of the hookAnti-overwinding switch (the black component in the picture above)
• ​Fixed end of steel wire ropeSHL force sensor (the silver module in the above picture)
• ​Hinge point of the boomIntegrated length and Angle sensor (the red device in the above picture)

​② Control terminal​

• ​Cab instrument: Off-white main unit (marked as "Monitoring Instrument" in the picture above)
  Real-time display: "Main hook 16.5t, weight 01.42t, load rate 120.0%!" (The screen simulation in the above picture

​4. Core advantages​

​Fifteen years of verified industrial-grade reliability​

​✅ Expand unbounded​
Reserve dual communication interfaces for direct connection to the outdoor LED large screen to display working condition data
​✅ extra-long lifespan​
Fully sealed metal casing + wide-temperature core sheet (-20℃ to 60℃), with a service life of up to 10 years
​✅ transfer in three minutes​
Users can independently complete the reset debugging

​5. Technical parameters

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• ​Monitoring accuracySystematic error ≤±5% (far superior to the national standard ±8%)
• ​Environmental tolerance: 95% no condensation at humidity; IP64 dust and water resistance (resistant to high-pressure water mist)
• ​Electrical characteristics​：
  Power supply: AC220V±10%; Power consumption < 35W (no frequency reduction during continuous operation)
  Control output: 5-channel relays (contact capacity 10A/220VAC)
  Alarm volume: > 60dB (clearly distinguishable at 15 meters)
• ​Refresh rateKey data is updated in real time for 200ms

​6. Installation specifications

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​Compatible design for industrial cabinets​

• ​Overall dimensionsLength: 250mm × Height: 164mm × thickness: 70mm (approximately the size of A4 paper)
• ​Core features​：
  → ​Physical key areaThe 5-key layout on the right (Add/Confirm/Function/Exit/Decrease)
  → ​Emergency control keyAt the bottom, there are independent yellow buttons for "Control Release" and "Reset"
  → ​Cable definition(Bottom interface from left to right) :
  • ​Power cordAC220V input (brown/blue line)
  • ​Control lineRelay output (yellow group)
  • ​Height sensingAnti-overwinding signal (green)
  • ​Weight sensingMain/auxiliary hook force measurement (gray/white)