Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -1,148 +1,0 @@ 1 -{{box cssClass="floatinginfobox" title="**Contents**"}} 2 -{{toc/}} 3 -{{/box}} 4 - 5 -= Overview = 6 - 7 -[[image:LHT65N_10.png||alt="LHT65_Image" height="265" width="265"]] 8 - 9 - 10 -The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a(% class="mark" %) **built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% class="mark" %)**Temperature Sensor**(%%)**.** 11 - 12 -The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on. 13 - 14 -LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*. 15 - 16 -LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway. 17 - 18 -LHT65N supports (% class="mark" %)Datalog Feature(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading. 19 - 20 -*The actual battery life depends on how often to send data, please see the battery analyzer chapter. 21 - 22 - 23 -== Features: == 24 - 25 -* Wall mountable 26 -* LoRaWAN v1.0.3 Class A protocol 27 -* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915 28 -* AT Commands to change parameters 29 -* Remote configure parameters via LoRaWAN Downlink 30 -* Firmware upgradeable via program port 31 -* Built-in 2400mAh battery for up to 10 years of use. 32 -* Built-in Temperature & Humidity sensor 33 -* Optional External Sensors 34 -* Tri-color LED to indicate working status 35 -* Datalog feature 36 - 37 -== Specification: == 38 - 39 -**Built-in Temperature Sensor:** 40 - 41 -* Resolution: 0.01 °C 42 -* Accuracy Tolerance : Typ ±0.3 °C 43 -* Long Term Drift: < 0.02 °C/yr 44 -* Operating Range: -40 ~~ 85 °C 45 - 46 -**Built-in Humidity Sensor:** 47 - 48 -* Resolution: 0.04 %RH 49 -* Accuracy Tolerance : Typ ±3 %RH 50 -* Long Term Drift: < 0.02 °C/yr 51 -* Operating Range: 0 ~~ 96 %RH 52 - 53 -**External Temperature Sensor:** 54 - 55 -* Resolution: 0.0625 °C 56 -* ±0.5°C accuracy from -10°C to +85°C 57 -* ±2°C accuracy from -55°C to +125°C 58 -* Operating Range: -55 °C ~~ 125 °C 59 - 60 -= Sensors & Accessories = 61 - 62 -== E3 Temperature Probe == 63 - 64 -== == 65 - 66 -[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]] 67 - 68 - 69 -With Temperature sensor with 2 meters cable long 70 - 71 -* Resolution: 0.0625 °C 72 -* ±0.5°C accuracy from -10°C to +85°C 73 -* ±2°C accuracy from -55°C to +125°C 74 -* Operating Range: -40 ~~ 125 °C 75 -* -55°C to 125°C 76 -* Working voltage 2.35v ~~ 5v 77 - 78 - 79 -= Battery & How to replace = 80 - 81 -== Battery Type == 82 - 83 -LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters. 84 - 85 -The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 86 -[[image:image-20220515075034-1.png||height="208" width="644"]] 87 - 88 - 89 -The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 90 - 91 - 92 -== Replace Battery == 93 - 94 -LHT65N has two screws on the back, Unscrew them, and changing the battery inside is ok. The battery is a general CR17450 battery. Any brand should be ok. 95 - 96 -[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]] 97 - 98 - 99 -== Battery Life Analyze == 100 - 101 -Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life: 102 -https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf 103 - 104 - 105 -= Order Info = 106 - 107 -Part Number: (% class="mark" %)**LHT65N-XX** 108 - 109 -**XX**: The default frequency band 110 - 111 -* **AS923**: LoRaWAN AS923 band 112 -* **AU915**: LoRaWAN AU915 band 113 -* **EU433**: LoRaWAN EU433 band 114 -* **EU868**: LoRaWAN EU868 band 115 -* **KR920**: LoRaWAN KR920 band 116 -* **US915**: LoRaWAN US915 band 117 -* **IN865**: LoRaWAN IN865 band 118 -* **CN470**: LoRaWAN CN470 band 119 - 120 -**YY**: Sensor Accessories 121 - 122 -* **E3**: External Temperature Probe 123 - 124 -= Packing Info = 125 - 126 -**Package Includes**: 127 - 128 -* LHT65N Temperature & Humidity Sensor x 1 129 -* Program cable x 1 130 -* Optional external sensor 131 - 132 -**Dimension and weight**: 133 - 134 -* Device Size: 13.5 x 7 x 3 cm 135 -* Device Weight: 105g 136 -* Package Size / pcs : 14.5 x 8 x 5 cm 137 -* Weight / pcs : 170g 138 - 139 -= FCC Warning = 140 - 141 -This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: 142 - 143 -(1) This device may not cause harmful interference, and 144 - 145 -(2) this device must accept any interference received, including interference that may cause undesired operation 146 - 147 - 148 -
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