Model: Low-power manhole liquid level meter, manhole water level monitoring
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| General Parameters | |
|---|---|
| Ultrasonic Ranging Measuring Range | 0.5m ..10m |
| Submersible Level Meter Measuring Range | 0m ..1.5m |
| Ultrasonic Level Meter Accuracy | ±0.5%FS |
| Submersible Level Meter Accuracy | ±0.5%FS～±1%FS (depending on local atmospheric pressure) |
| Electrical Characteristics | |
| Operating Voltage | 3.5VDC～3.7VDC |
| Overall Power Consumption | ≤400uA (3.6V, 5-minute upload interval) |
| Supplied Materials | |
| NB-IoT SIM Card | 3 years (activated upon shipment) |
| Lithium Thionyl Chloride (Li-SOCl2) Battery | 3.6V/17AH |
| Ambient Temperature | |
| Operating Temperature | -20～60℃ (submersible level meter must operate in non-freezing conditions) |
| Storage Temperature | -40～80℃ |
| Mechanical Specifications | |
| Cable Length | Ultrasonic sensor default 2m (other cable lengths require customization) |
| Submersible level meter default 1.5m (other cable lengths require customization) | |
| Transducer Thread | NPT 2" |
| Protection Rating (IP Rating) | IP68 |
| Weight | Approx. 500g |
| Housing Material | PA66+GF15%, corrosion-resistant PVDF for sensor |
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