220/220VAC,60/50Hz,1Φ,400W

要看用什么整流电路,如果整流电路中有稳压电路,那,输出电压一样的.

澶ф?灏辨槸杩欐牱浜?涓嶈繃浼氭湁璇?樊璇疯皡瑙Ⅻbr/>3 then duly 220VAC and 24VDC main power and backup power supply,switch mode of choice for the "automatic",open the control counter-board power switch,control board counter the "main power" and "standby power" light is lit,"automatic sampling" light is lit,the system automatically run the first warm-up mode (the length of time for 0-1 minutes,can be observed on the screen Guangzhu progress),after the completion of warm-up into the automatic purge mode,use after decompression 4KG/CM2 the highest clean air for all testing conducted scavenging accommodation in order to rule out the possibility of sampling the water and gas pipelines and other objects,all detected light work of accommodation shown as "Scavenging"; Purge work is completed,sampling pumps work automatically to regulate the flow meter instructions to 1 L / MIN,the system automatically switches through the electromagnetic valve sampling space,the corresponding indicator light detection work space shown as "sampling",the screen shows the current measuring point of the combustible gas concentration readings ( Each detection channel switching time sampling length of 1-999 seconds,can be adjusted on the screen menu,the channel sampling the length of time can be individually set to a long time can also be unified settings).At this point the system has entered a state of normal operation.
4.4 Press the control panel counter test button,all lights and the panel should work buzzer.
4.5 If a class of combustible gas detection concentration above 10% LEL alarm default pre-concentration (0-50% LEL,can adjust the menu screen),pre-alarm status indicator light flashes (low frequency),buzzer-ming ring (low frequency),press the mute button,buzzer stopped ringing,pre-alarm status indicators into Always; if other detection accommodation exceeded again,the sound and light warning will come up again; If all the combustible gas detection accommodation concentration of less than default,press the reset button,pre-alarm status indicator goes out.Pre-alarm space,time,concentration of historical records and other information can display the relevant page inquiries,show.When the pre-alarm state,please stop hot work industry,check the relevant class of combustible gas leakage,and to exclude.
4.6 If a class of combustible gas detection concentration above 30% LEL alarm default main concentration (0-50% LEL,can adjust the menu screen),the main alarm status indicator light flashes (HF),buzzer ringing (high frequency),press the mute button,the buzzer to stop ringing,the main alarm status indicators into Always; if other detection accommodation exceeded again,the sound and light warning will come up again; If all the testing space combustible gas concentrations below the default,press the reset button,indicator light to turn off the main report to the police state.Alarm Master of accommodation,time,concentration of historical records and other information can display the relevant page inquiries,show.When the main report to the police state,please stop hot work industry,check the relevant class of combustible gas leakage,and to exclude.
4.7 Internal control cabinet combustible gas concentration monitoring by separate combustible gas sensor is responsible for continuous monitoring at any time,if the concentration of combustible gases inside the instructions more than 30% LEL default value of the main report to the police,the system automatically stops the control operation,"cabinet superscalar "light blinking,buzzer sound,press the mute button,the buzzer to stop ringing,the screen shows" superscalar inside." Combustible gas concentration inside until the readings dropped to normal,after troubleshooting inside,press the "reset inside superscalar" button "inside superscalar / reset" indicator goes out,the system can be re-run of the detection of accommodation for Sampling and Monitoring.
6.Failure to deal with
6.1 false alarm
6.1.1 to carry out artificial Purge pipeline,scheduled to make the residual gas sampling tube,the re-sampling measurement.
6.1.2 display alarm settings to check whether it is normal,if not correct,re-setting.
6.1.3 using a standard calibration gas sensors,if there is deviation,re-zero,gain calibration.
6.1.4 Inspection PLC working condition.
6.2 does not alarm
6.2.1 display alarm settings to check whether it is normal,if not correct,re-setting.
6.2.2 using a standard calibration gas sensors,if there is deviation,re-zero,gain calibration.
6.2.3 Inspection PLC working condition.
6.3 sampling pump does not work
6.3.1 sampling pump power to check whether it is normal for loop.
6.3.2 check whether it is normal for sampling pump.
6.3.3 inspection system for locking the state of alarm inside and if so,to reset.
6.3.4 inspection system is in purge mode.
6.4 system can not automatically switch sampling loop
6.4.1 inspection system in the automatic mode to choose whether or not a state.
6.4.2 Inspection PLC working condition.

EMI电路可用共模差模抑制器,浪涌电路可用负温度系数电阻,或大电阻和可控硅的组合防浪涌电路,很简单的.

这个只是告诉你这个电源是交流电220V,电流是4A,频率是50赫兹的.

1.怎样解读UPS容量?是不是220W以上的设备不能用啊?
500VA是容量就是实在功率,300W是有功功率,由此可以计算出无功功率是400Var,实质功率=有功功率X功率因数（即ups逆变器效率,多数取0.8）,即：3000.8=240W,所以不能使用240W以上的设备.
2.假如只对100W的电灯供电,能用多长时间?
这个是还要最主要考虑ups蓄电池的容量
3.还有他写输出最大1.5A,是不是220W以上的设备不能用啊?
1.5是电流,电流跟功率成正比的.也就是说负载300W的设备时,电流是1.4安左右,所以取1.5A.电流=功率÷电压

计算功率322.62w,标称为300w或是350w,看厂家心情,求保险则300w,但350w的可能性比较大

在输入220V交流与20MHz 带宽47uF电解电容+0.1uF瓷片电容时.供你参考.
不是距离.Vp-p值是指最高点和最低点的差.比如幅值为1V的交流信号,其Vp-p=2V

220VAC经过整流滤波后电压就为：220*根号2=311VDC
所以整流后的滤波电容一般需要耐压：400V

5V*38=190V
220-190=30V
R=30/15=2K
电阻功率 P=30*15=450mw
用2k 欧姆电阻,功率用1瓦

两位回答很好,关键是继电器线圈电压,要交流220V的.你现在烧的原因就是底电压直流的(12V,)接在220V交流上,还好让你现场交学费?此事很正常,有的电工换接触线圈将220V的接上380V一会就冒烟.,小继电器线圈电压透过罩子能看见,220AC在线圈外包纸上.我作设备用噢母龙的,OMRON,MY4NJ,220V/240V,AC带插座,线圈你接13和14,控制输出点常开接.1和9或.2.10或.3.11

220VDC：这个电容的耐压（正常工作的电压）是220V直流电
220VAC：是电容的耐压,不得超过交流220V
50Hz：是指该机子的转子每秒钟转过50圈,

可以接220伏交流电压,触点通过电流大小,负载是纯电阻的可以承载5安培的电流,负载是感性的可以承载的电流大小是3安培.

硫酸提纯不能用电解的方法