China Lighting Network recently, CIE issued a new technical report "Lighting for Older People and People with Visual Impairment in Buildings" (CIE-227), analyzes the environmental lighting on visual function (such as visual acuity, contrast sensitivity, visual fiel

X3G022579FC1H-V V-1300 formaldehyde buffer solution absorption_hydropenylamine hydrochloride method Key words: formaldehyde; para-rosaniline hydrochloride; mei analysis ; V-1200; V-1300 I. Reagent 1, sodium tetrachloromercury absorption solution: weigh 13.6 g high-mercur

Probe domestic high current needle 150 head diameter 3.0 thread needle high current needle total Operation method of natural slope meter Natural slope meter use: The instrument is used to determine the maximum dip angle formed by the non-condensable soil and its natura

Manufacturers produce direct sales LED lamp bead patch lighting products 0805 white light super bright indicator light dedicated The Mitsubishi plc output indicator is installed on the respective output module, and the PLC output indicator is used to indicate the status o

Single chip microcomputer STM32L151CCU6 Photocoupler 1. Reference voltage adjustment (starting voltage) The reference voltage is the basic condition for the device to start. The adjusted reference voltage requires the motor to rotate immediately after the voltage is app

Crystal oscillator Crystal oscillator 2.5*2.0mm 2520 0.67M~170M OSC can be supplied at any frequency TP-IP4220CZ6 5V 0.35PF breakdown voltage 6V SOT Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin Shunuo varistor / ESD varistor

Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM Photocoupler Analysis of the reasons for the failure of high-voltage switchgear, mostly in insulation, electrical and mechanical aspects. (1) Rejection or misoperation failure This kind of f

LC03-3.3 SOP8 TVS Static Protection 3.3V Probe current voltage pin 420*4450 head diameter 5.0 over current current and voltage pin How to maintain the compressed air dryer in daily production? How to maintain the compressed air dryer? Thanks to the above answerers. My pr

SMD aluminum electrolytic capacitor Programmable Package SG-8018CA(SG7050C) 0.67M~170M One-piece inductor I hope that after converting the plc ladder diagram into an STL program, how can I make the STL program not be restored to the LAD program? A: --------- The simple

Photocoupler 1) When plc is in RUN mode, K20 is sent to the preset value register SV100. If the reset behavior is OFF at this time, K20 in SV100 is sent to the elapsed value register EV100. 2) Each time a rising edge of the counter logic line X0 is detected (the state ch

Filter 18.432M 1, the generation of higher harmonics Generally, the low-voltage inverter with a voltage of 380~500V adopts the "AC-DC-AC" line, and it is a voltage type. Its input has a rectifier circuit, and the output uses an IGBT inverter circuit, so the inp

Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle Photocoupler 1. After receiving the power failure notice, the electrician pulls down the relevant knife switch and accepts the fuse. And lock the operation handle, and hang the