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セキュリティセンサー EDI 222 SeriesのPDF 操作マニュアルをオンラインで閲覧またはダウンロードできます。EDI 222 Series 17 ページ。 Inductive loop detector sensor unit

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1.1 GLOSSARY

A - Ampere

C - Celsius

Component - Any electrical or electronic device

Crosstalk – a symptom of interference between two adjacent loops running at similar frequencies

∆L/L – Change of inductance divided by the nominal inductance

DC - Direct Current

DIP – Dual Inline Package

Firmware - A computer program or software stored permanently in PROM

FLASH – An IC Memory with nonvolatile, electrically erasable, programmable features

Hz - Hertz

IC - Integrated Circuit

Inductance - The property of an electric circuit by which an electromotive force is induced in it as the

result of a changing magnetic flux

Jumper - A means of connecting/disconnecting two or more conductive by soldering/desoldering a

conductive wire or by PCB post jumper

LED - Light Emitting Diode

LOGIC - Negative Logic Convention (Ground True) State

mA - milliAmpere

uH - microHenry

ms - millisecond

MCU - Micro Controller Unit

N.C. - Normally closed contact

N.O. - Normally open contact

Q Factor – A numerical rating for the quality of a resonant circuit. A higher number indicates lower

losses.

PCB - Printed Circuit Board

RAM - Random Access Memory

RMS - Root-Mean-Square

ROM - Read Only Memory Device

s – second

Schmitt Circuit – a circuit that provides hysterisis in the threshold

SW – Switch

uF - microfarad

VAC - Voltage Alternating Current

VDC - Voltage Direct Current

1.2 GENERAL DESCRIPTION

The Eberle Design Model 222 is a dual channel inductive loop vehicle detector sensor unit designed

to meet Caltrans specifications TEES 2009 including Errata #2 (December 2014). The sensor unit

occupies one position of a 170 standard input file. The sensor unit card incorporates a double-sided

44 pin edge connector for the connection of power, loops and call signals. Each channel has

individual front panel controls for setting sensitivity, operational mode and frequency, and is equipped

with high intensity front panel LEDs which are used to indicate the detect state. Call outputs are

optically-isolated and solid-state transistors.

Eberle Design Inc.

Model 222

Operations Manual

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