Diamond Traffic Products TTC-4420 Manuel - Page 4

Parcourez en ligne ou téléchargez le pdf Manuel pour {nom_de_la_catégorie} Diamond Traffic Products TTC-4420. Diamond Traffic Products TTC-4420 14 pages. Trail counter

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Diamond Traffic Products redesigned the trail traffic counter to use integrated

circuits to lower battery consumption and allow use of "D" cell batteries and

also offer an hourly time interval count recording feature with RS-232 serial

data output. The new counter is lightweight, easy to conceal, resistant to false

tripping, and operates one year or more on a set of "D" cell flashlight batteries.

It consists of the following components—a scanner in a cast aluminum case, a

three inch reflector, a keyfob with magnet and three mounting bolts. The

scanner is mounted on one side of the trail, the reflector on the other side as

shown in Figure 1. The scanner and the reflector can usually be separated up to

75 feet. The new TTC-4420 indicates return beam strength on its display and

tells operator how strong the signal is. We recommend signal strength of 60 or

above

The Trail Counter works as follows: the scanner sends a beam of pulsed

infrared light to the reflector, which reflects the beam back to the scanner.

When the scanner is deprived of a specific number of pulses by an object

passing between the scanner and reflector, the unit will detect a person or object

such as a car and advance the LCD display one digit. An audio alignment signal

can be switched on using the key fob. The audio signal is muted only when the

reflector is placed in the beam and the scanner is receiving the reflected light

pulses.

To prevent detection by hikers, which may result in vandalism or tampering, the

scanner housing has been designed to be as small as possible and is finished in

dull camouflage. The infrared beam is not visible to the naked eye, and the

counter cannot be heard when the audio signal is disabled.

The 15-75 foot range of the scanner gives field personnel opportunity to

camouflage

the

unit

natural

vegetation.