The wireless liquid level transmitter is an intelligent manhole liquid level monitor with an integrated design. The product adopts a micro-power design and uses a silicon piezoresistive liquid level sensor with a stainless steel isolation membrane as the liquid level signal measurement element. The liquid level signal is collected through a high-precision AD converter to achieve zero point and temperature performance compensation for the liquid level in a wide temperature range.

The wireless liquid level transmitter is powered by a large-capacity, long-life lithium thionyl chloride battery pack that can be quickly replaced. It is suitable for outdoor applications or those without mains power supply, such as rainwater and sewage pipe network liquid level monitoring, urban manhole liquid level monitoring, storage tank liquid level monitoring, pool liquid level monitoring, etc. The device uses NB-IoT communication to remotely transmit data to the manhole liquid level monitoring system software, realizing real-time monitoring, alarm processing, statistical analysis and other functions of on-site liquid level data.

Function Overview

1. Liquid level acquisition function

Adopts a new application design to realize the measurement of underground and above-ground liquid levels.

2. Voltage acquisition function

Collects the battery voltage information of the liquid level monitor, monitors the remaining battery power, and truly reflects the remaining battery life, so as to timely grasp the operation of the equipment.

3. Alarm event function

With liquid level upper and lower limit alarms, it realizes the reporting of battery low voltage alarm information.

4. Battery power supply

Uses micro-power design, battery power supply, and battery life of 3 years.

5. External trigger wake-up

When the device is in sleep mode, the liquid level monitor can be triggered to wake up through an external trigger and upload the monitoring data immediately.

6. Support remote configuration

Remote configuration of liquid level monitor parameters is realized according to parameter configuration requirements, which brings convenience to on-site installation and subsequent maintenance.

7. Support local monitoring

Adopts a large-size LED screen design with LCD display function, which can view liquid level, voltage, signal strength, number of data sent and other information locally.

Product Features

1. Use high-precision AD converter to collect liquid level signals.

2. Support NB-IoT communication to remotely transmit data to the manhole liquid level monitoring system platform.

3. Built-in large-capacity and long-life lithium thionyl chloride battery pack that can be quickly replaced for power supply.

4. The LCD panel is rich in content and intuitively presents the working status of the equipment.

5. Waterproof and explosion-proof design, suitable for various harsh environments in the field and outdoors.

6. With data storage function, network failure data will not be lost.

7. With simple and easy-to-use parameter configuration software, device parameters can be flexibly changed.

8. Allow remote modification of device parameters.

Installation Instructions

The wireless liquid level transmitter can be installed in various manholes in the city. The wireless level transmitter is installed in the manhole as a whole, without destroying the manhole structure and manhole pavement. It uses a dedicated high-gain, strong penetration antenna for wireless data transmission to ensure data stability and reliability.