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Summary of Contents for Diablo DSP-19
- Page 1 User Manual DSP-19 Loop and Mini-Loop Vehicle Detector Diablo Controls, Inc. Copyright © 2017 Document: DSP19_MAN_A Released: June 05, 2017 Pros Who Know Trust Diablo...
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Page 2: Table Of Contents
Power LED Flashes Off Every Two 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 DSP-19 User Manual Page 2 of 24 DSP19_MAN_A... -
Page 3: Figures
Figure 6: Loop Installation ............................17 Figure 7: Saw Cut for Home Run Exit and Chiseled Corner for Home Run Exit ............17 Figure 8: Typical Mini-Loop Installation ........................18 Figure 9: Mini-Loop Side Installation ........................19 DSP-19 User Manual Page 3 of 24 DSP19_MAN_A... -
Page 4: Introduction
Contact Diablo Controls for more information on the mini-loop. The DSP-19 can be used as either a safety loop or free exit loop detector. It also has the flexibility to be either “fail-safe”... -
Page 5: Functional Data
250ms ±20ms Vehicle Hold Time: In Normal Presence Mode: Approximately 1 hour for a detection of 1% ΔL/L. In Extended Presence Mode: Approximately 1 to 2 days for a detection of 1% ΔL/L. DSP-19 User Manual Page 5 of 24 DSP19_MAN_A... -
Page 6: Electrical Data
Without detection is 31 ma maximum With detection is 40 ma maximum Environmental Data Operating Temperature: -35°F to 165°F (-37°C to 74°C) Storage Temperature: -40°F to 176°F (-40°C to 80°C) Humidity: Up to 95% relative humidity non-condensing DSP-19 User Manual Page 6 of 24 DSP19_MAN_A... -
Page 7: Mechanical Data
Mounting Position: Housing Material: Lexan Housing Size: 2.362 inches (High) x 2.008 inches (Wide) x .866 inches (Deep) 60.00 mm (High) x 51.00 mm (Wide) x 22.00 mm (Deep) Figure 2: Physical Dimensions DSP-19 User Manual Page 7 of 24 DSP19_MAN_A... -
Page 8: Features And Functions
3. Features and Functions Solid-State Output The DSP-19 has one solid-state (open-drain) output. Solid-state outputs have several advantages over relay outputs: • Allows for a smaller form factor • Lower power consumption • Outputs do not have to be debounced (relay contact bounce when closing) •... -
Page 9: Presence Detection
The factory default is five (5). Like most inductive loop vehicle detectors, the DSP-19 directly measures the change in frequency of the loop and from there, calculates the change in inductance when a vehicle interacts with it. The change in inductance is measured as %ΔL/L (reads as “percent delta L over L”). -
Page 10: Frequency (Dip Switches 1 And 2)
Loop / Magnetometer (DIP Switch 3) The DSP-19 is capable of operating with either a standard inductive loop in the presence mode or the new mini- loop (magnetometer) in the pulse on entry mode. In the magnetometer mode of operation the detector will only hold a detection for 2 seconds. -
Page 11: Normal Sensitivity / Sensitivity Boost (Dip Switch 5)
Fail-Safe / Fail-Secure (DIP Switch 6) On the DSP-19, the option for fail-safe or fail-secure only applies to the main output when in the inductive loop mode. In general, a fail-safe detector will activate the output when the loop circuit is failed. This is useful on a safety loop to prevent accidental closure of a gate on a vehicle. -
Page 12: Output Connector
Output Connector The DSP-19 connects as typical through its rear 9-pin connector. That is, loop inputs and power inputs. However, the main output is through the 2-pin connector located on the top of the detector. The connector is a typical Euro style screw terminal block. -
Page 13: Figure 4: Power Led States
See chart below for actual timing. NORMAL The LED is always on when the detector is in its normal state of operation. Figure 4: Power LED States DSP-19 User Manual Page 13 of 24 DSP19_MAN_A... -
Page 14: Figure 5: Detect Led States
The main output will be deactivated during this time. Main Output Active A vehicle is detected and has activated the main output. Figure 5: Detect LED States DSP-19 User Manual Page 14 of 24 DSP19_MAN_A... -
Page 15: Installation
Wiring: If plugging the detector in to the operator, you should be certain that the operator pin-out for its connector is the same as that of the DSP-19 detector and that the voltage supplied to the detector is between 10 and 30 volts DC. - Page 16 This will also help remove dust from the saw cutting operation from the sides of the saw slot. This will allow better adhesion of the loop sealant to the saw slot. DSP-19 User Manual Page 16 of 24...
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Page 17: Figure 6: Loop Installation
BACKER ROD PIECE LOOP WIRE CUTS DETAIL B DETAIL A Figure 6: Loop Installation Figure 7: Saw Cut for Home Run Exit and Chiseled Corner for Home Run Exit DSP-19 User Manual Page 17 of 24 DSP19_MAN_A... -
Page 18: Mini-Loop Installation
1 inch pieces of backer rod should be used every foot of the saw slot to keep the lead-in cable at the bottom of the saw slot. Figure 8: Typical Mini-Loop Installation DSP-19 User Manual Page 18 of 24 DSP19_MAN_A... -
Page 19: Figure 9: Mini-Loop Side Installation
Mini-Loop in half and does not allow for different sensitivites for the two Mini-Loops. The second is to use another DSP-19 with it’s own Mini-Loop installed on the opposite side of the roadway. In this configuration both Mini-Loops have full sensitivity and their sensitivities are individually adjustable. -
Page 20: Configuration
Configuration Wiring There is only one wiring configuration (pin-out) offered for the DSP-19. Function Loop or Mini-Loop Loop or Mini-Loop No Pin Not Connected Not Connected Not Connected Not Connected DC + DC – and Output Common DSP-19 User Manual... -
Page 21: Troubleshooting
Power LED Displaying 2 Flashes On, Every Two Seconds This flash rate indicates that the channel has a shorted loop, a low resistance across the loop circuit, or insufficient inductance. DSP-19 User Manual Page 21 of 24 DSP19_MAN_A... -
Page 22: Power Led Displaying 3 Flashes On, Every Two Seconds
If you have a single loop, using a megohm meter to check the health of the insulation of the loop wire is the best test to verify that the loop needs to be replaced. A reading of less than 50 megohms is indication that your loop is having problems and needs to be replaced. DSP-19 User Manual Page 22 of 24 DSP19_MAN_A... -
Page 23: Power Led Flashes Off Every Two Seconds
Electrical Interference – There are several possible sources of electrical interference: loop cross-talk, power lines, electric motors, and insufficient twisting of the loop wires, just to name a few. DSP-19 User Manual Page 23 of 24 DSP19_MAN_A... -
Page 24: Detect Led Will Not Come On With A Vehicle Present
If the problem follows the loop the loop is the problem. If it stays in the same detector, replace the detector. DSP-19 User Manual Page 24 of 24...
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