超载限制器 传感器 双梁起重机 起重量限制器

起重量限制器是一种起重机械安全保护装置，可用于1-600t桥吊、门吊和起闭机等起重机设备上。该装置主要由电阻应变式传感器和电气控制仪表两部分组成。

Load limiter is safety equipment for lifting machines.The equipment,which is made of resistance strain-gage transducer and electric control instrument,is used in bridge crane,portal crane and hoist ranging1-600t.

限制器主要技术指标优于GB12602-90《起重机械超载保护安全装置》技术要求见下表

The main technical parameters are better than GB12602-90 Technical requirements for as following:

名称型号ltems 技术要求Technical requirements 精度Precision 显示精度≤5%F.S，动作误差≤3%F.S。Precision of display≤5%F.S,Action error≤3%F.S(full load) 预报警Pre-alarm 额定起重量的90%发出声光报警。90%of the rated lifting out acoustic-optic alarm. 延时报警Delay Alarm 额定起重量的105%持续声光报警，延时1-2秒继电器动作，切断起升电源。105%of the rated lifting weight,sending out acoustic-optic alarm continuously,relay works1 or 2seconds later,cutting off the rising power supply. 立即报警Prompt Alarm 额定起重量的110～130%继电器立即动作，切断起升电源。110～130% of he rated lifting weight,the relay works instantly,cutting off the rising power supply. 工作电源Operating voltage 220V或380vac、50HZ。

220V or 380VAC,50HZ 工作环境Operating environment -20%～60%≤90%RH。 防护等级Protection grade 传感器为IP68,仪表箱为IP42.S蛊惑：IP68，controlle:ip48 传感器过载能力Overload factor 额定起重量的1.5倍。1.5 times of the rated lifting weight.