R8 -- Rectangular Tunnel Detector
The R8 detector is the latest addition to NMT's complement of Coded Wire Tag
detectors.
The R8 replaces the "tubular" detectors previously offered by NMT. The R8 will
accommodate large, single fish such as salmonids approaching 40 lbs (18 kg); the
continuous flow of fish such as pollock or herring on a conveyor belt; or batches of fish
such
as bushels of shrimp or scallops. The detection capabilities of the R8 are superior to
any
detector ever produced to date.
- the R8 weighs 64 pounds (28.6 kg)(73 pounds [33.2 kg] with legs), is 15 3/8
inches (39.1
cm) wide, 11 7/8 inches (30.2 cm) high and 41 1/4 (1.0 m) inches long
- the R8 is designed to be rugged while still being lightweight and performing as a
precision
instrument
- the R8 comes with aluminum tubular legs that can be compactly folded for easy
transportation, or it can be mounted or 'built-in" to a sampling system
- the basic version of the R8 is designed to detect fish moving through the unit
within a
range of speeds, chosen to accommodate fish sliding down an angled tube under the
influence of gravity
- a tagged fish is indicated visually via and LED and audibly by a sonalert
beeper
- also available is an enhanced version which incorporates an electronics package
that will
address conveyor belts, diverter gates and externally attached beepers or lights
- the basic version is powered by batteries only and the enhanced version can be
powered
by either batteries or external power sources
- the R8 carries NMT's standard warranty and can be purchased or rented when
available

- Northwest Marine Technology, Inc
- P.O. Box 427, Ben Nevis Loop Road, Shaw Island, Washington 98286
- Telephone (360) 468-3375 Fax (360) 468-3844