适用范围 Application
1．适用于1区、2区危险场所：
2．适用于HA、ⅡB、ⅡC类爆炸性气体环境。
1．Can be used in Zone 1 and Zone 2 dangerous places．
2．Can be used in NA。ⅡB group explosive a~nosphere
产品特色 Features
BQXB69电动机变频调速箱可通过改变其输出频率来调节普通三相异步电动机的转速，以迭到生产工艺的要求，或实现节电的目的，节电率可迭30％-60％，也可作为电动机软起动控制器，也可通过传感器，变送器等控制电路组成闭环调速系统。安装操作简单，起动平衡无冲击电流(软起动)I电源容量大大降低，功率因数稳定，同时具备故障显示等各种功能。
由于调速变频器的核Jb器件是单片微机，因此具有很强的功能：
1．过电流保护、短路保护、过电压保护，欠电压保护、瞬时停电保护和断相保护；
2．可数字显示或指示或指针显示频率、转速以及负载率或电流等；
3．可手动调节频率，可设定转速按时问变化的工艺曲线。也可由DCS系统给出信号来控制其频率；
4．本产品调速变频器为进口元件。柜内还装有电流表、电压表、自动空气开关，指示灯、交流接触器，工频变频转换开关夏起动，停止按钮等。
可根据不同用户的工艺要求设计，选择器件及配制各种适当的操作方法；
5．钢管或电缆布线均可；
6．符合GB3836-2000、IEC60079标准要求。
BQXB69 governorismainly usedtoadjustthe speed of3-phase asynchroneousmotorby Converting outputfrequency,aoastomeetwith production requirementsorsave alactricalenergy upto 30％“60％．Alsoit can ba usedas soft startingcontrollerofmotor,furthermoreit can be combined with sensor,transforming device，etc，to form speed adjusting system of closed loop．Features：ease toinstall andoperate，start in balance without shock current(soft starting)，decrease supplied power,constant power,constantpowerfactor,fault indication
Themaincomponentsofgovernoris chipmicroprocessor,withfollowingprotections and performances：
1．Protsction ofovercu rrent．short-circuit，overvoltage，undervoltage，instantanaous da-energiza~on and phase-failure
2．Digital or pointer indication offrequency,rotary speed．10ad rate and current．
3．Manuually adjusUng frequency is available，able to set the characteristic curve in accordance with rotary speed accompanied by time passing the frequency is able to be controlled as well by DCS system's sending adjusting signal
4．The main components are imported Inside is arranged ammeter,vol~netsr,air circuit breaker,indicator,ACcontactor,convarsion switch， and bu~onsforsfar~ngorstopping Accordingto users requiremant．componentsoroperatingmodes can bef阳e叶chosenas possible．
5．Conduitwiringorcablewinng．
6．Suitable for GB3836-2000．1Ec60079 stsndard request．
