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9409 Dual Channel
DoorKing 9409 Dual Channel Manuals
Manuals and User Guides for DoorKing 9409 Dual Channel. We have
1
DoorKing 9409 Dual Channel manual available for free PDF download: Information Manual
DoorKing 9409 Dual Channel Information Manual (17 pages)
Underground Loops and Loop Detectors, Plug-In Loop Detectors and Loop Accessories
Brand:
DoorKing
| Category:
Security Sensors
| Size: 3.52 MB
Table of Contents
Table of Contents
3
Introduction
4
Underground Loop
4
Lead-In Wire or Cable
4
Loop Detector
4
Design Facts
4
Section 1 - How the Loop System Works
6
Field of Sensitivity
6
Height of Detection
6
Field Cancellation Effect
7
Field Enhancement Effect
7
Loop Phasing
8
Electrically Reverse the Phase of a Loop
8
Loop Detection Field Interference and Loop Placement
9
Section 2 - Loop Installation Guidelines
10
Saw Cut Loop Guidelines
10
Doorking Preformed Loop Guidelines
12
Section 3 - Typical Loop Layout Examples
13
Slide Gates
13
Swing Gates
14
Section 4 - Troubleshooting Loop Systems
15
Loop Diagnostics
15
Poor Connections
15
Shorted Loop Wire
15
Detector Adjustments
15
Section 5 - Doorking Loop Detectors and Accessories
16
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