Laser LS8000-3 manual Standard Operating Parameters

	LaserSpeed 8000-3 Instruction Handbook
	LaserTrak Software
Standard Operating Parameters
Material Present Input	Controls how the gauge determines Material Present. The sensor can use
Mode	either the amount of reflected laser light (Internal), or it can use an external
	input signal (Active Low/Active High).
Material Present	Sets the time that Material Present can be lost before the sensor triggers the
Dropout Time	end of a measurement. If you are taking measurements and the Material
	Present signal is lost for less than the selected Material Present dropout time,
	the loss is considered to be a momentary loss of signal and is ignored. If the
	signal is lost for longer than the selected Material Present dropout time, it is
	considered the end of the material. This function is very useful when making
	length measurements on poor reflecting material.
Material Present	Sets the maximum time that can elapse between the detection of Material
Validation Time Limit	Present and the acquisition of valid velocity readings. If the acquisition of valid
	velocity readings exceeds this time limit the gauge will consider the length
	measurement to be invalid and output 999999.999 as a length.
Material Present	A value from 0 to 4095 that indicates the relative reflected laser light threshold
Threshold	level of the Material Present signal. A setting of 0 would take very little
	reflected light to trigger Material Present. A setting of 4096 will take a lot of
	light on the detector to trigger MP. A good starting place is in the center of the
	range. This setting is only applicable when the Material Present Input Mode is
	set to Internal.
Walking Threshold	The velocity value below which, the output is forced to zero regardless of
	whether or not valid readings are obtained. This setting is useful for eliminating
	accumulation of length when the material is vibrating while stationary in the
	measurement zone. Setting this value to 0 disables the setting. The range is 0
	to 2000
Minimum Final Length	When in Final Length mode, sets the minimum length that will be reported.
	This is useful for ignoring momentary glitches in Material Present caused by
	outside disturbances such as water droplets or spray passing through the
	measurement area. Any measured length less than this setting will not be
	reported as a Final Length. The range is 0 to 999,999.999.
Index Pulse Length	Sets the Index pulse length in 10 ms increments. The range is from 10ms to 2
	seconds.
Index Pulse Every	Sets the distance between index pulses in the selected measurement units.
	The range is 0.1 and 2000
High Speed Pulse Rate	Sets the number of pulses per unit length for the high speed pulse output. The
	unit length can be configured by setting the Units of Measurement setting. The
	gauge is capable of transmitting pulse rates as high as 5MHz on this pulse
	output. Select a Pulse Rate setting that will produce a frequency lower than
	5MHz at the maximum expected line speed. The range is 0.001 to 100,000.
Low Speed Pulse Rate	Sets the number of pulses per unit length for the adjustable voltage pulse
	output. The unit length can be configured by setting the Units of Measurement
	setting. The sensor is capable of transmitting pulse rates as high as 250kHz
	on this pulse output. Select a Pulse Rate setting that will produce a pulse rate
	lower than 250kHz at the maximum expected line speed.
	For example, if the maximum line speed was 1000 m/min, a setting of 10,000
	pulses/meter would produce an output frequency of about 167kHz. (1000

Part No. 93463 / Drawing No. 0921-01561 Page 109 of 221 Revision A (Sep 2007)