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SEWO Car Parking System Cheap Loop Detector
SEWO-T2800 is a single channel inductive loop detector. The principle is based on a change in the inductance within the loop which is caused by the metallic components of passing vehicles. The changes are picked up and evaluated by a microprocessor. Ease of use thanks to automatic calibration when the operating voltage is applied.
Technical Parameters
1. Overall Dimensions | 36*75*86 mm (W x H x L) |
2. Net Weight | 300g |
3. Supply Voltage AC | 220V, 110V, 24V, 12V |
4. Supply Voltage DC | 24V, 12V |
5. Power Dissipation | ≤3W |
6. Frequency Range | 20 KHz to 250 KHz |
7. Sensitivity | adjustable in 3 increments (high, medium, low) |
8. Signal Retention Time | unlimited |
9. Operating Temperature | -40°C to +65°C |
10. Storage Temperature | -40°C to +85°C |
11. Reaction Time | 100ms |
12. Protection Grade | IP30 |
13. Loop Connection | <5m optimal |
14. Loop Inductance | Ideal: 40μH to 1000μH; Max: 80μH to 500μH |
15. Loop Connection wiring | maximum length 200 meters, twisted at least 20 times per meter |
Sensitivity
In order to calibrate on site the wire loop to the loop detector, the sensitivity can be adjusted on the front of the housing by means of a three-stage sliding switch.
High: high sensitivity (e.g. also bicycles can be detected)
Medium: medium sensitivity (e.g. for automobiles)
Low: low sensitivity (preferably Lorries will be detected)
Ensure that the loop is NOT activated when making these adjustments.
Application
SEWO-T2800 single loop detector is used wherever vehicles have to be detected. For example, monitoring and guarding safety of access ways or counting vehicles. The output signal can be used for controlling door and gate drive mechanisms, operating barriers, controlling traffic light systems in car parks or activating card dispensers in car parking systems.
SEWO Car Parking System Cheap Loop Detector