DSP-22-2 User Manual Page 2 of 25 DSP-22-2_MAN_E
Contents
Figures .................................................................................................................................................................... 3
1. Introduction ........................................................................................................................................... 4
Functional Data ....................................................................................................................................................... 5
Electrical Data ......................................................................................................................................................... 6
Environmental Data ................................................................................................................................................ 6
Mechanical Data ..................................................................................................................................................... 7
2. Features and Functions ........................................................................................................................... 8
Detector Reset ........................................................................................................................................................ 8
Channel 1 – Enable / Disable (DIP Switch 9) ........................................................................................................... 8
Channel 1 – Sensitivity (DIP Switches 1 and 2) ....................................................................................................... 8
Channel 1 – Normal Sensitivity / Sensitivity Boost (DIP Switch 3) ......................................................................... 9
Channel 1 – Frequency (S3 DIP Switches 1 and 2) .................................................................................................. 9
Channel 2 – Enable / Disable (DIP Switch 10) ......................................................................................................... 9
Channel 2 – Sensitivity (DIP Switches 4 and 5) ....................................................................................................... 9
Channel 2 – Normal Sensitivity / Sensitivity Boost (DIP Switch 6) ....................................................................... 10
Channel 2 – Presence / Pulse (DIP Switch 7) ........................................................................................................ 10
Channel 2 – Loop / Probe (DIP Switch 8) .............................................................................................................. 11
Channel 2 – Frequency (S3 DIP Switches 3 and 4) ................................................................................................ 11
Indicators .............................................................................................................................................................. 12
3. Installation ........................................................................................................................................... 15
General Rules and Best Practices for Inductive Loops ......................................................................................... 15
Detector Installation ............................................................................................................................................. 16
Loop Installation ................................................................................................................................................... 17
Free Exit Probe Installation................................................................................................................................... 20
4. Troubleshooting ................................................................................................................................... 22
No Power LED ....................................................................................................................................................... 22
Detect LED Flashes On Once Every Two Seconds ................................................................................................. 22
Detect LED Flashes On Twice Every Two Seconds ................................................................................................ 22
Detect LED Flashes at the Same Time as the Power LED every Two Seconds...................................................... 23
Power LED Intermittently Comes On (Not Once Every 2 Seconds) ...................................................................... 23
Detect LED Intermittently Comes On / Stays On Without a Vehicle Present ....................................................... 23
Detect LED Will Not Come On With a Vehicle Present ......................................................................................... 24
Detect 1 and Detect 2 LEDs Flash Back and Forth ................................................................................................ 25
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