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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... ... @@ -27,7 +27,7 @@ 27 27 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915 28 28 * AT Commands to change parameters 29 29 * Remote configure parameters via LoRaWAN Downlink 30 -* Firmware upgrad eable via program port30 +* Firmware upgradable via program port 31 31 * Built-in 2400mAh battery for up to 10 years of use. 32 32 * Built-in Temperature & Humidity sensor 33 33 * Optional External Sensors ... ... @@ -57,52 +57,9 @@ 57 57 * ±2°C accuracy from -55°C to +125°C 58 58 * Operating Range: -55 °C ~~ 125 °C 59 59 60 -= Sensors & Accessories = 61 - 62 -== E3 Temperature Probe == 63 - 64 -[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]] 65 - 66 - 67 -With Temperature sensor with 2 meters cable long 68 - 69 -* Resolution: 0.0625 °C 70 -* ±0.5°C accuracy from -10°C to +85°C 71 -* ±2°C accuracy from -55°C to +125°C 72 -* Operating Range: -40 ~~ 125 °C 73 -* -55°C to 125°C 74 -* Working voltage 2.35v ~~ 5v 75 - 76 - 77 -= Battery & How to replace = 78 - 79 -== Battery Type == 80 - 81 -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. 82 - 83 -The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 84 -[[image:image-20220515075034-1.png||height="208" width="644"]] 85 - 86 - 87 -The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 88 - 89 - 90 -== Replace Battery == 91 - 92 -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. 93 - 94 -[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]] 95 - 96 - 97 -== Battery Life Analyze == 98 - 99 -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: 100 -https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf 101 - 102 - 103 103 = Order Info = 104 104 105 -Part Number: (% class="mark" %)**LHT65 N-XX**62 +Part Number: (% class="mark" %)**LHT65-XX** 106 106 107 107 **XX**: The default frequency band 108 108 ... ... @@ -115,10 +115,6 @@ 115 115 * **IN865**: LoRaWAN IN865 band 116 116 * **CN470**: LoRaWAN CN470 band 117 117 118 -**YY**: Sensor Accessories 119 - 120 -* **E3**: External Temperature Probe 121 - 122 122 = Packing Info = 123 123 124 124 **Package Includes**: ... ... @@ -134,6 +134,7 @@ 134 134 * Package Size / pcs : 14.5 x 8 x 5 cm 135 135 * Weight / pcs : 170g 136 136 90 + 137 137 = FCC Warning = 138 138 139 139 This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: ... ... @@ -143,3 +143,4 @@ 143 143 (2) this device must accept any interference received, including interference that may cause undesired operation 144 144 145 145 100 +
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