Peek Traffic SL58P User Manual

Operator Manual

SL58-P Loop Detector

for the Peek ADR Series Traffic Recorders

11/19/2012
p/n: 99-578

Rev 1

© 2012 Peek Traffic Corporation, a Signal Group company
All rights reserved.

Information furnished here is believed to be accurate and reliable, however Peek Traffic does not warranty the
accuracy, completeness, or fitness for use of any of the information furnished. No license is granted by
implication or otherwise under any intellectual property. Peek reserves the right to alter any of the Company's
products or published technical data relating thereto at any time without notice.

The information contained within this manual is intended to serve as a guide to users in the operation of the
SL58-P Loop Detector. An effort has been made to insure the accuracy of the information contained in this
manual. However, the information is supplied without warranty of any kind. Further, there is no warranty of
the applicability of the information to all cases.

The SL58-P loop detector card has been designed and certified to operate within limits and a frequency range
compliant with FCC and IC regulations.

Model : SL58-P
FCC ID : PMN-SL58P
IC : 10596A-SL58P
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

this device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.

This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est
conforme à la norme NMB-003 du Canada.

The IC & FCC ID are labeled on the SL58-P. When the SL58-P is installed in an ADR unit, a screw driver
may be used to open the ADR unit to view this label.

This unit must be installed and operated as specified in this manual. Any changes or modifications not
expressly approved by Peek Traffic could void the user's authority to operate the equipment.

The user is cautioned to fully program and thoroughly test the controller for its intended application prior to
placing it in operational service. Peek Traffic reserves the right to add, delete, and/or modify the material in
this manual at any time.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or via
any electronic or mechanical means for any purpose other than the purchaser’s personal use without the
expressed, written permission of Peek Traffic Corporation.

Peek Traffic Corporation
2906 Corporate Way
Palmetto, FL 34221 U.S.A.

Trademarks

ADR-1000, ADR -2000, ADR -3000, ADR –Sabre and SL58-P Loop Detector are trademarks or registered
trademarks of Peek Traffic Corporation, a Signal Group company, in the USA and other countries. Microsoft
and Windows are trademarks or registered trademarks of Microsoft Corporation. Other brands and their
products are trademarks or registered trademarks of their respective holders and should be noted as such.

ABOUT THIS MANUAL

This is the operator manual for Peek Traffic Corporation’s SL58-P Loop Detector™.
This manual provides:
 General information regarding the installation of the SL58-P Loop Detector, power-

up, and operation

 Guidelines for installing and connecting inductive road loops
 Instructions for operating the loop detection within FCC compliance limits
 Instructions for using the SL58-P LED indicators and buttons
 Instructions for making adjustments to Loop Detector loop frequencies, and other

settings

 Glossary
 Index

SL-58P Loop Detector Operating Manual iii

Document

Part Number

ADR-6000 Operating Manual

99-273

ADR-Plus Operating Manual

99-133

Peek Traffic Corporation - Customer Service Center

2906 Corporate Way
Palmetto, FL 34221
toll free in the U.S.: 1 [phone]
tel: [phone]
fax: [phone]
email: [e-mail]

ADDITIONAL GUIDANCE

For more guidance on the configuration and use of the Peek ADR Series traffic
recorders, and related devices, refer to the following documents and contacts.

Documentation

These documents provide useful information concerning ADR Series traffic recorders.
Table 1 — Additional documentation available for ADR products

Technical Support

Use this information to contact the technical support staff of Peek Traffic Corporation,
should you require additional help concerning IQ Connect devices.

iv SL-58P Loop Detector Operating Manual

Contents

About this Manual ............................................................................................................ iii

Additional Guidance ........................................................................................................ iv

Documentation ............................................................................................................................ iv

Technical Support ........................................................................................................................ iv

Contents ............................................................................................................................ v

Table of Figures ............................................................................................................... vi

Chapter 1 — Introduction ................................................................................................. 1

Overview ............................................................................................................................ 1

Features .......................................................................................................................................... 1

Detector Installation Notes ............................................................................................... 2

Chapter 2 — Using the Detector ...................................................................................... 3

Basic Detector Operation ................................................................ .................................................. 3

Front Panel LEDs and Buttons (Rack-mounted version) ............................................................... 4

Power-down and Power-up .............................................................................................................. 4

Reset ................................................................................................................................ ............... 5

Setting Operating Parameters via Host ............................................................................................ 5

Switching Channels Off/On ........................................................................................................... 5

Hysteresis and Sensitivity ............................................................................................................. 5

Frequency Level Selection ............................................................................................................... 6

Speed Measurement .................................................................................................................... 7

Failsafe on Fault Conditions ............................................................................................................ 8

FCC Compliant Operation ................................................................................................................ 8

Chapter 3 — Installing Loops for Data Collection ........................................................ 11

Basic Loop Theory .......................................................................................................... 11

Loop Construction........................................................................................................... 11

Loop Wire ...................................................................................................................................... 11

Size of Loops ................................................................................................................................. 12

Height of Detection ...................................................................................................................... 12

SL-58P Loop Detector Operating Manual v

INSTALLING THE LOOP ................................................................................................................ 13

Site Safety ................................................................................................................................... 13

Site Selection .............................................................................................................................. 13

Loop Wire Installation .................................................................................................................. 13

Splicing Loop Wires ..................................................................................................................... 14

Using Harness 81-303 ................................................................................................................. 16

Glossary .......................................................................................................................... 17

Index ................................................................................................................................ 22

Table of Figures

Figure 1 – Typical loop and detector configuration ................................................................ ..... 3

Figure 2 – LEDs and Buttons ...................................................................................................... 4

Figure 3 – Frequency Level Jumpers J20 and J19 ..................................................................... 7

Figure 5 –Loop wire installation .................................................................................................14

Figure 6 – Wire Splicing Guidelines ..........................................................................................15

vi SL-58P Loop Detector Operating Manual

OVERVIEW

Note For more information regarding ADR devices, and equipment

usage in general, refer to the Operator Manual for the specific
ADR device(s) in use (see Additional Guidance, p. iv).

The SL58-P is a low-current, eight-channel inductive vehicle detector, designed primarily
for use with the ADR Series traffic recorders, in traffic data monitoring applications. The
loop detector monitors changes in the inductive level for each loop, indicating vehicle
presence, as part of a traffic study array deployment strategy.

Features

 The detector energizes up to eight individual inductive loops (channels), and

monitors changes in the inductive level for each loop, detecting vehicle presence.

 The detector uses channel scanning techniques which permit freedom from cross-

channel interference from the eight channels within a detector.

 Automatic tuning upon power-up or reset allows detector operation in 2 seconds.
 Power up or reset clears any detect and fault outputs already set in the detector.
 Host device menus can be used to adjust sensitivity and hysteresis per individual

channel. These adjustments can be made while the detector is working, although
this causes the detector to reset.

 Detector channels can be switched on/off individually (via host device settings);

normal operation of remaining channels in use is maintained. When a channel is
switched off, its connected road loop is not energized.

 Failsafe on fault (open or short circuit loop). Automatic retune of a channel occurs if

the loop inductance changes by a nominal + 18% of its initial start-up inductance.

Chapter 1 — Introduction

SL-58P Loop Detector Operating Manual 1

Chapter 1 — Introduction

Caution Be sure the power supply to any detector modules in a rack is switched off,

or in the case of installation in a discreet ADR unit, the battery disconnected,
before installing a detector into or removing a detector from a module rack or
recorder unit slot.

Caution Observe all safety precautions when working with electrical circuitry within

the unit. Also take care to prevent damage from electrostatic discharge, and
avoid contact with circuit board traces and components. Failure to do so can
result in personal injury or damage to equipment.

DETECTOR INSTALLATION NOTES

The SL58-P Loop Detector is designed to be used with Peek Traffic ADR Series traffic
recorders. Refer to “Additional Guidance,” p.iv, for more information on ADR Series
traffic recorders and related products.

Always take the necessary safety precautions whenever servicing and operating
electrical equipment.

2 SL-58P Loop Detector Operating Manual

Chapter 2 — Using the Detector

Once installed and powered up, you can use the SL58-P loop detector to connect up to
eight inductive road loops as part of your array. Typically, no adjustments to detector or
settings, such as frequency level, or hysteresis, are needed for successful operation.

Adjustments can be made, if necessary, in detector frequency or hysteresis settings, if
necessary to enhance detection accuracy or help overcome detection issues (see “Setting
Operating Parameters via Host,” p. 5, or “Frequency Level Selection,” p. 6).

Basic Detector Operation

The SL58-P loop detector channels drive alternating current through the connected
inductive loop, creating an electromagnetic field. The loop detector channel forms a
tuned electrical circuit of which the loop wire is the inductive element.

If a conductive metallic mass passes through the electromagnetic field, eddy currents
will be induced in the conductive material. Since the loop inductance is proportional to
the magnetic flux, it results in a decrease in loop inductance. The detector channel
electronics sense the change in inductance and then activate signal output.

Figure 1 – Typical loop and detector configuration

SL-58P Loop Detector Operating Manual 3