Fast door to ring in control, each side channel can simultaneously monitor a geomagnetic sensor inductive loop, which works by passing vehicles, the metal parts will change the ring sensor values, while signals.
Mounting ring: After determining the shape of the ring must dig a trench in the ground (5-8 mm wide and 50 mm deep, 30) to install the ring. In the four corners of the proposed cut ring (45 degrees) groove angle, angle around the power to reduce friction. Magnetic and electric control box cable must swirled every 20 meters. Installation of electric loop coil depends on the number of substantially circumferential ring, the smaller circumference ring, the greater the number of coils.
Zhou Yuan 3-6 m, 6 laps; circumference of 6-10 m, 5 laps; circumference of 10-25 m, 4 laps; 25 meters over three laps.
Receiver check failure: the detection loop own switch or red light emitting diode under uncontrolled.
Possible Cause: ground fault; second detection loop interference; When an object moves on the surface, probing the ring moves.
Solution: Repair the detection loop, if necessary, due to the detection loop given under ground (when the object moves on the surface, probing the ring can not move), and then re-calibration. If the output relay to generate inductive switch, which will lead to failure, then you must use suppressors (for example, 22 ohms / 0.1uf) protection.
Possible causes: too much or too winding loop detection (detection loop electromagnetic calorimeter: ideal measurement data 80 to 300u H)
Solution: Replace the detection loop (reduce the number of windings), re-calibrate, change fast gate sensitivity switch, wait about three seconds, and then change the sensitivity switch back to the original settings. If necessary, temporarily cut off the power for about 5 seconds.
Possible causes: too small or too small to detect winding ring (ring detect electromagnetic calorimeter: ideal measurement data 80 to 300u H)
Solution: Replace the probe ring (increasing the number of windings), re-calibrated (with flashing the same treatment program twice).
Possible reasons: interference detection loop, ground fault or short circuit (detection loop electromagnetic calorimeter: Measuring the ideal data 80 to 300u H; checking the insulation resistance, the required data is> 20 megohms).