Soil Moisture Sensor Model: WN51E Contents 1. Introduction..................................................2 2. Getting Started............................................. 3 2.1 Parts List............................................ 3 3. Overview......................................................3 3.1 Features..............................................4 4. Setup Guide..................................................7 4.1 Install batteries...................................7 5.
1. Introduction Thanks for purchasing this WN51E soil moisture sensor. This device measures soil moisture. The data can be streamed by GW1000 Wi-Fi Gateway (sold separately) and can be viewed on our WS View mobile application after the Wi-Fi configuration done. Or a receiver console can be used to display the received sensor value. The sensor is equipped with a ceramic cap which acts like a breathing filter for exchanging soil moisture to its internal sensing media.
2. Getting Started 2.1 Parts List One Soil Moisture Sensor One User Manual 3.
3.1 Features Soil Moisture Sensor Measures soil moisture content every 71 seconds. Sensor covered with ceramics for more accurate measurement. Custom Mode: with 0%AD and 100%AD custom mode to manually calibrate the low/high moisture value so that you can get more accurate result for different soil types. This mode can only be activated through WS View app and in live data display mode.
When paired Gateway: with a GW1000 Wi-Fi Monitor live sensor data on the Live Data page of the WS View app (requires the gateway and your phone is using the same Wi-Fi network) Up to 8 channels supported. Channel names can be edited on the app. When paired with a Weather Station Console (HP2551/HP3500/HP3501): View soil moisture data in real-time on the Display Up to 8 channels supported. Channel names can be edited on the Display (for HP2551 only).
When uploaded to Ecowitt Weather Server: View current soil moisture data & history records & graph on the website Set and receive email alerts from the server Channel names can be edited on the website Remote monitoring with smart phone, laptop, or computer by visiting the website Note: The WH51 and WN51E will be recognized as the same sensor type by the software. If you purchased both, they will share the eight channels together and the total quantity of the two sensors could not exceed eight.
4. Setup Guide 4.1 Install batteries 1.Open the battery cap of the soil moisture sensor 2.Insert one AA battery and close battery door. 3.
LED indicator will light for 4 seconds, and then flash once per 71 second thereafter. Each time it flashes, the sensor is transmitting data. You may go to Section 5 now to complete the GW1000 gateway configuration first to make its data displayed and resume the steps followed below. 4. Before install the sensor into its permanent location, we would suggest test the sensor in air, and see if moisture reading is 0.
sensing cap size, and bury the sensor completely in the soil. Please do not use excessive force to push the sensor into the soil and this might have the ceramic cap broken. 5. Wi-Fi Configure with gateway To view the soil moisture data on your mobile application and receive email alerts on our weather server, you need to pair this device with our GW1000 Wi-Fi Gateway or HP2551/HP3500/HP3501 Weather Station (sold separately). 5.
GW1000 has this sensor enabled on sensor ID setup page. Note: The gateway can support max 8 soil moisture sensors. Each new sensor will be recognized as a new channel according to the Power-on sequence. You may attach a label of the channel on each sensor for distinction. The channel name can be edited both on the app and Ecowitt Weather server (will not sync). If you want to use a new WN51E sensor to replace the old one (already configured on certain channel), please try the following: 1.
3. Click Re-register on the Sensor ID page. Then the new sensor will be learned and the old sensor will be erased. 5.2 Wi-Fi Connection for the Gateway For this part, please refer to the manual of the GW1000 Wi-Fi gateway. Any question, please contact the customer service. 6. View Online Data on WS View When the Wi-Fi configuration is done, you can view the live data of your soil moisture sensor on the WS View application.
Note: It requires your phone and the gateway using the same network to view your sensor data on the WS View app. To remote monitor the sensor data, please upload the data to our free Ecowitt Weather Server: https://www.ecowitt.net. Detailed operation instructions can be found on the GW1000 manual. Any question, please feel free to contact our customer service at support@ecowitt.
7. Custom mode When in LIVE DATA display mode, you can calibrate the soil moisture sensor by enable the Custom mode. (Click More – Choose Calibration – Choose Soil Calibration – Tick the box on the left side of the Customize).
Custom OFF: Moisture level is calculated based on default dry and wet definition: Dry (0%AD) AD: 70 Wet (100% AD) AD: 500 Soil Moisture = (moisture AD – 0%AD) * 100% / (100% AD – 0%AD ) Example: when sensor moisture AD is 310, calculated moisture is: (310 – 70)*100% / (500-70) = 56%. This is a fixed slope rate linear system. Custom ON: When pot soil at dry or wet condition is not giving the moisture sensor output value that is close to its default assumption, it will give inaccurate moisture level results.
that gives very different output value at same moisture level condition. We introduced this custom mode to make this slope flexible so that it can match your soil type. This becomes a variable slope rate linear system. Adjusting principle: 0%AD is used to adjust for dry condition reading inconsistency. When the displayed moisture readings are too high at dry soil condition, you could lower the slope rate by increasing the 0%AD value. 100%AD is used to adapt for wet condition reading inconsistency.
decrease the 100%AD value to fix it. Please refer to the below example for better understanding. For example: When you use this product at the first time, you may turn off the custom mode and test the product at the following two situations: Situation One: Place the sensor into a glass of fresh water, and the displayed moisture readings is much lower than 95%(e.g.70%). Solution: Enable custom mode, and adjust the 100%AD value.
Soil Moisture = (moisture AD – 0%AD) * 100% / (100% AD – 0%AD ) If: Now AD = 183 0%AD = 70 Target Soil Moisture Reading = 95% Then: 95% = (183 - 70)*100%/(100%AD – 70 ) Result: 100%AD = 188(take the Integer part) Then you can adjust the default 0%AD value to 188 and touch the screen for once to update the data. When you get your expected moisture reading, click Save to save the setting.
water, and the displayed moisture readings are much higher than 10% (e.g.40%). Solution: Enable the custom mode and adjust the 0%AD value.
Then you can adjust the default 0%AD value to 147 and touch the screen for once to update the data. When you get your expected moisture reading, click Save to save the setting. Note: The soil moisture sensor should be inserted totally into the soil for accurate result. Record the 0%AD and 100%AD value for future use (when WIFI network changed). Note: In general, the device has been calibrated in the factory, and you don’t need to calibrate it on your side.
8. Specification Moisture Range:0~100%; Resolution: 1% 0%AD setting range:0~200; Initial value: default to factory calibration.
9. Warranty Information We disclaim any responsibility for any technical error or printing error, or the consequences thereof. All trademarks and patents are recognized. We provide a 1-year limited warranty on this product against manufacturing defects, or defects in materials and workmanship. This limited warranty begins on the original date of purchase, is valid only on products purchased, and only to the original purchaser of this product.
or claims based on misrepresentation by the seller, or performance variations resulting from installation-related circumstances. FCC Statement Statement according to FCC part 15.19: This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: 1.This device may not cause harmful interference. 2.This device must accept any interference received, including interference that may cause undesired operation. Statement according to FCC part 15.
operate the equipment. Statement according to FCC part 15.105: NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: •Reorient or relocate the receiving antenna. •Increase the separation between the equipment and receiver. •Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. •Consult the dealer or an experienced radio/ TV technician for help.
