Doppler Microwave Motion Detection Sensor Module GH-719 GH719

Product Description

Doppler Microwave Motion Detection Sensor Module GH-719 GH719

GH-719 microwave displacement module for use:
GH-719 microwave sensor shift module is the use of Doppler (Doppler Radar) design principles of the microwave detector moving objects, microwave frequency 10.525GH, direct plus DC 6-20V power supply to work.
GH-719 microwave sensor displacement signal processing module uses SCM process analysis, and high reliability. Circuit board has 16 sensitivity adjustment, adjustable sensing distance within 0.3 to 10 meters. 4 kinds of trigger mode selection signal output time: 2 seconds, 3 seconds, 10 seconds, 20 seconds, plus trigger photosensitive resistance inhibit daytime, mainly used in automatic door control switches, industrial automation and control, indoor and outdoor security systems, ATM automatically ATM automatic video control systems, field safety cautionary and other places.
GH-719 microwave sensor module is a non-contact displacement detection modules, RFI capability, independent of temperature, humidity, light, air, dust impact, can be installed in a certain thickness of plastic, glass, wood and other non-metallic shell inside, convenient to control a variety of products or equipment above.
Second circuit board adjustment Description:
 A 16-level sensitivity adjustment: circuit board has four marked connection point 0123 of.
1: short-circuit the following four connection points, the sensitivity can be adjusted 16 so that sensing distance adjustable within 0.3-10 meters.
2: 4 connection points disconnected, sensing distance recently, within 0.5 meters.
3: 1 short circuit connection point, not short-circuited to 0, all short circuit, the highest sensitivity, adjusted as follows:
1: 0000.2: 0001.3: 0010.4: 0011.5: 0100.6: 0101.7: 0110.8: 0111.
8: 1000.9: 1001. a: 1010. b: 1011. c: 1100. d: 1101. e: 1110. f: 1111.
 B 4 trigger modes Adjustment: circuit board has two connection points labeled 45 in.
1:00 unrepeatable touch trigger type:
 Detect moving objects, high signal output 3 seconds after stop, delay 2 seconds before testing, to detect moving objects and output for 2 seconds, followed by cycle. Undetectable until moving objects, high signal output stops.
2:01 repeatable trigger touch-type, delay time of 2 seconds:
 Detect moving objects, high signal output 2 seconds, 2 seconds in time, the module at the frequency of 30 times per second, could not detect if a moving object is detected again, the time delay of 2 seconds to continue, undetectable until moving object,
High signal delay 2 seconds after stop.
3:10 repeatable trigger touch-type, delay time of 10 seconds:
 Detect moving objects, high level signal output 10 seconds, within 10 seconds time, the frequency module 30 times per second
It could not detect if an object is detected moving again, the time delay of 10 seconds to continue until not detect moving objects,
High signal delay 10 seconds after stopping.
4:10 repeatable trigger touch-type, delay time of 20 seconds:
 Moving object is detected, the output of 20 seconds kinds of high level signal within 20 seconds time, module 30 times per second frequency
It could not detect if an object is detected moving again, the time delay of 20 seconds to continue until not detect moving objects,
High signal delay of 20 seconds after the stop.
 CDS photosensitive resistance:
1: Connect photoresistor can be suppressed during the day or at a relatively bright light environment triggered.
2: Trigger a valid:
   Then photoresistor, can at night or low light environment, when detecting a moving object can be triggered. Within the selected trigger mode time, even if the light from the darkness becomes bright, do not change the trigger status and the delay time until the output signal goes low, photoresistor only control action.
 Precautions:
 Sensitivity and trigger mode selected, the controller needs to perform a new selection function after power reset.
Three main technical parameters:
    Center frequency: 10.525 GHz 2 Operating voltage: DC3.7V ± 20V
    3 quiescent current: 2mA 4 high / low output level: 3.3V / 0V
    5 3 dB antenna pattern – azimuth 80 ° 6 3 dB antenna pattern – pitch 40 °
    7 sensing distance: 1-12 m 16 adjustable 8 Trigger: four options
    9 Ambient temperature: -30-70 degrees 10 Form Factor: 45 * 37 * 15mm