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The moment limiter can be used in a variety crane, DFB-2A is a complicated moment limiter which have overload and overwinding protections. When the overload or overwinding happens, it will automatically send alarm signals and prevent the crane to move towards a dangerous direction, thereby preventing boom-breaking or rollovers or any other accidents. The working conditions will be shown by LCD in real time.
Features:
DFB-2 crane moment limiter uses pressure sensor, angle sensor, length sensor (including overwind signal) to acquisition analog and switch, the solenoid valve controls the unloading, 24V DC source is provided by the vehicle battery, controlled by the power take off switch, when the crane began its work, the to protector start working at the same time.
DFB-2 crane moment limiter applies advanced hydraulic power take off method, the reliability is higher than the static rope or moving rope take power(static rope weighing sensor installed in the end of the boom, easy to being damaged, and moving rope power taking is wearable ) it is good to protect the boom angle cylinder.
Specification
(1) comprehensive accuracy: <5%
(2) Display resolution can be set freely(dot-matrix LCD display, Chinese characters)
(3)Power resource scope: 24VDC -15%- +35%;
(4)Working conditions
Temperature scope: -40℃-- 70℃
Relative humidity: not more than 95%RH( at 25℃)
Vibration: acceleration a=4g, frequency f=10-60Hz;
(5) Working way: continuous

 
 
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