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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... ... @@ -34,7 +34,6 @@ 34 34 * Tri-color LED to indicate working status 35 35 * Datalog feature 36 36 37 - 38 38 == Specification: == 39 39 40 40 **Built-in Temperature Sensor:** ... ... @@ -59,9 +59,54 @@ 59 59 * Operating Range: -55 °C ~~ 125 °C 60 60 61 61 61 += Sensors & Accessories = 62 + 63 +== E3 Temperature Probe 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 + 80 += Battery & How to replace = 81 + 82 +== Battery Type == 83 + 84 +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. 85 + 86 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 87 +[[image:image-20220515075034-1.png||height="208" width="644"]] 88 + 89 + 90 +The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 91 + 92 + 93 +== Replace Battery == 94 + 95 +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. 96 + 97 +[[image:image-20220515075440-2.png||height="338" width="272"]][[image:image-20220515075625-3.png||height="193" width="257"]] 98 + 99 + 100 +== Battery Life Analyze == 101 + 102 +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: 103 +https:~/~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf 104 + 105 + 62 62 = Order Info = 63 63 64 -Part Number: (% class="mark" %)**LHT65-XX** 108 +Part Number: (% class="mark" %)**LHT65N-XX** 65 65 66 66 **XX**: The default frequency band 67 67 ... ... @@ -74,7 +74,11 @@ 74 74 * **IN865**: LoRaWAN IN865 band 75 75 * **CN470**: LoRaWAN CN470 band 76 76 121 +**YY**: Sensor Accessories 77 77 123 +* **E3**: External Temperature Probe 124 + 125 + 78 78 = Packing Info = 79 79 80 80 **Package Includes**: ... ... @@ -90,4 +90,13 @@ 90 90 * Package Size / pcs : 14.5 x 8 x 5 cm 91 91 * Weight / pcs : 170g 92 92 141 += FCC Warning = 142 + 143 +This device complies with part 15 of the FCC Rules.Operation is subject to the following two conditions: 144 + 145 +(1) This device may not cause harmful interference, and 146 + 147 +(2) this device must accept any interference received, including interference that may cause undesired operation 148 + 149 + 93 93
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