This is provided to protect the measuring element from over speeding when the meter discharges to atmosphere . also , prevents damage to the backflow preventer due to excessive flow 当仪表排放到大气时,这种装置保护测量元件不会受到过高流速的破坏。此外,也防止防回流阀受到过大流量的破坏。
This system can self - locking when there are two mine cars or one and one mine cars at the same place in inclined lane , mine car is jammed , winch cable is broken , mine car is unhooked , and mine car runs over speed , the system has alarm function also , so the occurrences of major accidents caused by above things can be prevented 实现了人、车互锁;矿车卡车自锁;钢丝绳断绳自锁;矿车脱钩自锁;矿车超速自锁及其相应的报警等功能,可防止斜井提升中由于脱钩、断绳、超速等原因引起的重大事故。
This system is exploited completely according to national standard of vehicle traveling data recorder , can implement all of the function of the national standard of vehicle traveling data recorder , including date , time , car speed , mileage , start time , stop time , driving time , over speed , overtime , alarm of over speed and overtime , status identify of ic card , and many kind of status of on - off signal , including on - off vehicle door , brake status , turn signal status , dipped headlight and high beam etc . 本系统就是完全依照汽车行驶记录仪的国家标准而开发的,目标是实现国家标准中规定的所有汽车行驶记录仪应该达到的功能指标,包括可靠记录日期、时间、车速、行驶里程、开车时刻、停车时刻、行驶时间、超速时间、超时时间、超速超时告警、 ic卡身份识别等信息和车门开关、刹车状态、方向灯状态、近/远光灯等各种开关信号的状态的功能。