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| Categories | Presence Detectors Sensor | 
|---|---|
| Brand Name: | Merrytek | 
| Model Number: | MSA237K 99 A2 | 
| Certification: | CE | 
| Place of Origin: | Shenzhen, China | 
| MOQ: | 100PCS | 
| Price: | Negotiation | 
| Payment Terms: | T/T | 
| Supply Ability: | 10000 pcs/month | 
| Delivery Time: | 1, Sample and small order: Within 5 working days after receiving your payment. 2, Bulk order: 3-4 weeks after receiving deposit. | 
| Packaging Details: | White box+ White box tags+ Clapboard+ Carton(K=A) | 
| Working voltage: | 12-30Vdc | 
| Working mode: | KNX presence detectors | 
| Mounting height: | 2.5-4.0m | 
| Life time: | 5 years warranty@Ta 230V full load | 
| Working Power: | ≤1W | 
| Working frequency: | 24GHz ±24.25GHz | 
| Detecting type: | Breath detecting, Major motion detecting, minor motion detecting | 
| Mounting: | Surface mounting and flush mounting | 
| Company Info. | 
| Shenzhen Merrytek Technology Co., Ltd. | 
| Verified Supplier | 
| View Contact Details | 
| Product List | 
24G KNX bus power supply KNX presence detectors with breath
detecting for office area
1. Feature
1. Exclusive Merrytek Lifebeing Presence Detection
2. FMCW modulation technology applied to detect micro movement
brought by breathing
3. Germany RF technology applied for 5-year guarantee assurance
4. Accurate Presence/Absence Output
5. Daylight Sensor Available
6. Support KNX communication
7. 24Ghz ISM Band Millimeter Wave Radar technology
2. Parameters
| INPUT | Auxiliary Power Supply Voltage Range | 12-30V DC | 
| KNX Terminal Voltage | 21-30V DC | |
| Auxiliary Power Supply Working Current | 12V : 55±3mA Max 24V: 30±3mA Max | |
| KNX Terminal Current | 3±1mA | |
| Working Power | ≤1W @24V DC | |
| Sensor Parameter | Working Frequency | 24GHz-24.25GHz ISM band | 
| Transmitting Power | 5mW Max | |
| Detection Area | ETS/remote setting: 0.5-4m | |
| Hold Time | ETS/remote setting: 3S-7200S Remark: For better presence detection, hold time shall be set >30S | |
| Detecting Range | major/minor/micro-movement(3m height installation): 3.5±0.5m(based on 41㎡ open area test and might change due to different space) | |
| Remote Control | Support | |
| Mounting Height | 2-4m, typical value: 3m | |
| 3db Beam Angle | 100° (XZ field) | |
| 100° (YZ field) | ||
| Application environment | Flush-mounted Hole Size | Φ55mm | 
| Working Temperature | 0℃...+50℃ | |
| Storage Temperature | -40℃...80℃, Humidity: ≤85%(non-condensing) | |
| Certificate Standard | Certificate | FCC/RED | 
| Environmental Requirement | Compliant to RoHS | |
| IP Rating | IP20(flush mounting) IP54(surface mounting) | |
| Guarantee | 5 year(only for product quality problem under indoor application) | |
| “N/A” means not available | ||
3. Product Function
4. Dimension
5. Wiring
Wiring layout suggestion:
1. KNX bus wiring suggestion hand in hand to the end, star or tree
wiring is not recommended to ensure the stability of signal
transmission.
2. KNX bus wiring wire recommends KNX standard EIB shielded wire or
Category 6 network cable, the length of the bus wiring is
recommended not to exceed 400 meters, and the number of sensor
connected to a bus is recommended to not exceed 12.
3. The number of sensors connected to a bus needs to fully consider
the current load capacity of the power supply: that is the sum of
the currents of all KNX devices (including sensors) shall not be
greater than the load current of the KNX power supply.
5. Detection
6. Initialization
After routing the physical addresses and setting the channel parameters, follow these steps:
(1) Connect the Bus interface;
(2) Set the Bus and auxiliary power on (note: please make sure that the product has an auxiliary power supply, otherwise the device may not work properly);
(3) Press the programming switch of the product, the LED light will turn red;
(4) Use the bus interface to download the physical address through the ETS software. The programming LED light is off to indicate that the physical address download is completed;
(5) Download the application after setting the required application parameters.
(6) After downloading the application, the product goes into initialization. During initialization, the detection function is disabled. After 20S, the initialization is completed, and the product works normally;
Note: Please use the latest version of ETS 5 or 5.7.2. Please
obtain this sensor's ETS engineering configuration file from our
sales staff.
7. Installation Instructions
Embedded mounting installation

8. Factory Default Setting
Detection Area: 4m Hold Time: 30S Indicator Light: open
Sensitivity: medium sensitivity
9. Remote Control MH18
10. Application Notice
Our microwave motion sensor is an electromagnetic product that aims to detect moving objects and shall be firmly fastened. Strong reflect material like metal or metallic coating or moving pet or moving fan have false trigger chance, so we need to consider the below aspect during installation
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