Rack Mount Loop Detectors -LM622 Dual Channel NEMA TS-2 TYPE A
The LM622 has been specifically designed to deal
with all traffic and highway applications and meets
or exceeds all requirements of NEMA Standard
TS2-2003, Section 6.5 (Inductive Loop Detectors).
Rugged Handle Assembly: The rugged integrated
handle assembly is made of GE LexanTM, which is a
super durable polycarbonate resin. The design of this
assembly strengthens and protects the whole PCB
assembly much better than conventional metal face plates.
The temperature stability of critical components is improved
with the larger more encompassing enclosure. Detailed operating instructions are conveniently attached
directly on the side of the unit, eliminating the need for
instruction cards.
Separate Detect / Fault LEDs: The Fault (FLT)
indicator displays the type of fault: Short, Open or
25% change of inductance. Each type of fault is
indicated by a unique sequence of flashes allowing the user
to diagnose loop failures at a glance. Individual
indicators eliminate the confusion encountered with
other detectors that use only one LED to display both
faults and detection.
Loop Fault Memory: Loop Fault Memory reports
previous loop fault information. If a loop problem
self-heals, the detector channel will resume normal
operation. The contents of the memory will be displayed
on the Fault (FLT) indicator. This feature can be used to
isolate the source of intermittent loop failures.
Standard Features
Automatic Tuning / Loop Configuration: No manual
tuning is required and works effectively on all inductive
loops from 20 to 2500 microHenries.
Fifteen (15) Levels of Sensitivity: Allows users to fine
tune to their application.
Four Loop Frequencies and Sequential Scanning: Together
these features greatly reduce the incidence
of crosstalk.
Three Selectable Modes: Short Presence: For normal detection; Long Presence:
For sites where loops may be occupied for extended
periods of time.
Pulse: For counting and volume.
Environmental Tracking: Ensures reliable operation by
continuously adjusting for changes in ambient conditions.
Options: Relay Outputs, Model LM622R