好看的课外书,盗墓笔记小说下载

參數(shù)表節(jié)選：的技術(shù)參數(shù) LD31/LV31/25/38/115

產(chǎn)品闡述
Thru-beam sensor, 30 m detection range, red light, light on, DC version, relay contact output, fixed cable

System components
Emitter		LD31/76a/115
Receiver		LV31/25/38/115
General specifications
Effective detection range		0 ... 30 m
Threshold detection range		43 m
Light source		LED
Light type		modulated visible red light , 630 nm
Diameter of the light spot		approx. 800 mm at a distance of 30 m
Angle of divergence		Emitter: 0.5 ° , Receiver: 1.5 °
Functional safety related parameters
MTTF_d		620 a
Mission Time (T_M)		20 a
Diagnostic Coverage (DC)		0 %
Indicators/operating means
Function indicator		LED yellow: 1. LED lit constantly: signal > 2 x switching point (function reserve) 2. LED flashes: signal between 1 x switching point and 2 x switching point 3. LED off: signal < switching point
Electrical specifications
Operating voltage		12 ... 30 V DC
Output
Switching type		light on
Signal output		Relay, 1 alternator
Compliance with standards and directives
Directive conformity		EMC Directive 2004/108/EC
Standard conformity
	Product standard	EN 60947-5-2:2007 IEC 60947-5-2:2007
Mechanical specifications
Degree of protection		IP67
Connection		Emitter: 2 m fixed cable , 3-wire Receiver: 2 m fixed cable , 5-wire
Material
	Housing	Polycarbonate
	Optical face	PMMA