Florida Administrative Code › 15 - DEPARTMENT OF HIGHWAY SAFETY AND MOTOR VEHICLES › 15B - Division of Florida Highway Patrol › Chapter 15B-2 - SPEED MEASURING DEVICES › Section 15B-2.014 - Minimum Design Criteria for Laser Speed Measurement Devices

Current through Reg. 50, No. 138; July 16, 2024
(1) Manufacturers of laser speed measurement
				devices (LSMD) shall submit a report to the Department by an independent
				testing laboratory certifying that each model meets the following minimum
				design criteria:
(a) The device shall measure
				transmitted and received light amplified by stimulated emission of radiation,
				otherwise known as LASER.
(b) The
				device determines the speed of vehicles by the pulse - echo method using the
				time of flight of a series of pulses of laser light.
(c) The device shall use solid state digital
				techniques for distance and speed calculations.
(d) The device shall comply with the limits
				for a class A digital device as defined in
				47 C.F.R.
				15.3(h), which is
				incorporated by reference.
(e) The
				device is certified as a Class I (one) eye safe device according to the
				criteria established by the U.S. Department of Health and Human Services,
				Center for Devices and Radiological Health, Food and Drug Administration,
				Rockville, Maryland 20582, (  21 C.F.R. 1040) which is incorporated by
				reference.
(f) The device shall
				only transmit light pulses when a finger operated trigger is pressed. When this
				trigger is released the device shall cease to transmit. The devices shall not
				have any method to lock the trigger in the transmit mode.
(g) The device shall be capable of measuring
				target vehicle speeds over the speed range of 5 mph to 100 mph, with an
				accuracy of plus or minus 1 mph over this range.
(h) The device shall measure distances with
				an accuracy of plus or minus 1 foot, between 50 and 1000 feet, and display
				distances in feet.
(i) The device
				shall be capable of being converted to metric units for distance and speed by
				the manufacturer.
(j) The device
				shall be weather resistant.
(k) The
				device shall have a self test mode, which will operate automatically when the
				device is turned on, and when the self test is initiated by the operator. Self
				test shall verify that the computing and timing circuits are operating
				correctly, and shall illuminate all light emitting indicators so that the
				condition can be verified by the operator.
(l) The device shall truncate decimal values
				of the target speed display to produce whole number values.
(m) The device shall be capable of measuring
				both approaching and receding vehicles, and display a visual indication that
				differentiates direction.
(n) The
				device shall provide an audio tone indicating when a target vehicle has been
				acquired.
(o) The device shall meet
				all the minimum performance specifications over the manufacturers specified
				voltage range. The device shall contain the following features related to the
				power supply circuitry:
1. A power supply
				on/off switch.
2. A visual
				indicator to allow the operator to determine that electrical energy is being
				supplied to the device.
3. A low
				voltage indicator that alerts the operator either visually or audibly of low
				voltage conditions, and automatically prevents operation.
4. Internal circuitry that protects against
				accidental reversal of power supply polarity.
5. An in-line fuse or equivalent mounted
				between the power supply and the device to prevent power surges in excess of
				16.3 volts.
(p) The
				device shall detect spurious readings due to radio frequency interference and
				inhibit any speed display.
(q) The
				device shall be permanently marked with the functions and setting of all
				switches, controls and displays. It shall not be possible to set the controls
				to a functional mode of operation that is not marked or identified.
(r) The manufacturer shall permanently mark
				each device with the name of the LSMD model and the serial number for the
				specific LSMD.
(s) The manufacturer
				shall provide the procedures that verify the accurate alignment of the sighting
				element.
(t) When an Average Speed
				Calculator (ASC) is installed and used as a separate feature of a LSMD, the ASC
				feature must be certified separately and in addition to the LSMD under
				paragraph  15B-2.008(2)(d),
				F.A.C.