World Wide Web's dual-channel pressure transmitter (WE-T180 series) in the field of gas regulator application program

I. Application background

Gas regulator box is an important part of the gas transmission and distribution system, because of its compact structure, small footprint, saving investment, easy to install and use and other advantages have been widely promoted. The basic configuration of the box has inlet and outlet valves, filters, regulators and corresponding measuring instruments, and can also be installed with corrugated compensators, overpressure relief valve, overpressure cut-off valve and other ancillary safety equipment. At the same time, according to the use of the situation and user requirements, can be assembled into a single, double or multi-way gas regulator.

Second, the industry pain point: with the least equipment, measuring more channels, to achieve the "look, picking, transmission, reporting, control" and other intelligent IOT full-featured objectives

The traditional pressure or differential pressure monitoring in the regulator box relies entirely on traditional mechanical instrumentation for detection, requiring a large number of operation and maintenance personnel to the scene to do meter reading work, which is inefficient and slow to reflect the emergency situation, the concept of Internet of Things can greatly solve such problems, through the installation of a pressure transmitter to collect real-time regulator air inlet and outlet pressure, through wireless communication technology uploaded to the customer's operation and maintenance monitoring platform, so that real-time view of the specified point pressure data, set alarm thresholds can be the first time to notify the operation and maintenance personnel to make rapid and appropriate treatment in the event of pressure abnormalities. Through the installation of pressure transmitters to collect the real-time pressure of the regulator inlet and outlet, through wireless communication technology uploaded to the customer's operation and maintenance monitoring platform, so as to achieve a real-time view of the pressure data of the specified points, and set the alarm threshold can be in the case of pressure anomalies in the first time to notify the operation and maintenance personnel to make rapid and appropriate treatment.

Third, the product features: small body, large capacity, dual-channel, multi-platform, fast connection

WE-T180 is a series of dual-channel pressure monitoring transmitters, the transmission methods include LoRa, RS485, 4G, NB-IOT, etc., and the power supply methods are battery-powered and 24V-powered. The pressure transmitter adopts high stability digital sensors to realize real-time monitoring and calculation of on-site pressure, and uses LoRa, RS485, 4G, NB-IOT and other communication methods to realize long-distance communication. Combined with the industrial edge computing gateway products of Seiden Technology, the transmitter can be uploaded to Seiden Technology's equipment management platform, or directly uploaded to the customer's designated server to realize real-time collection, analysis, calculation, storage and display of on-site pressure-based physical quantities. It can also be directly uploaded to the customer's designated server to realize real-time collection, analysis, storage and display of on-site pressure physical quantity.

Transmitter body and probe split design, for the site of the measured medium, pressure range, and installation mode and other different needs, to provide a variety of pressure ranges, installation specifications of the pressure probe, the optimal match with the needs of the application scenario, can be widely used in construction buildings, industrial sites, municipal and other application scenarios.

WE-T180 series products adopt "single dual pressure acquisition channel" to connect the probe, the product has the following technical parameters:

• The reported data can be selected from two pressure values or a pressure difference;
• The size of the main body is 78(W)*121(H)*51.4(D)mm (the size of an adult's hand);
• Embedded with 19000mah high energy density battery, the duration of different reporting frequency can reach 5-15 years;
• The range is flexible and optional, gas pipeline is generally 0~0.2Mpa/0~0.4Mpa /0~10Mpa;
• Installation threads are flexible and optional, metric and imperial are all supported, gas pipes are mainly installed with M20 and M16 metric threads;
• Support RS485/LORA/4G/NB-IOT communication, in order to ensure the battery life, the gas pipeline adopts the communication method of NB-IOT;
• Support WeChat small program to read data, debugging data, support Bluetooth 5.1 communication and data interaction, support small program scanning QR code debugging;
• Support OTA remote firmware upgrade, convenient for subsequent firmware operation and maintenance;

Fourth, debugging configuration: Bluetooth connection, platform support, debugging is convenient

WE-T180 pressure transmitter supports WeChat small program bluetooth/sweep read data + debugging, communication protocol using MQTT protocol, standard json format, the platform docking is simple and convenient, the user can directly dock with the hardware to obtain data, but also with the WEDC equipment operation and maintenance platform docking to obtain data.

V. Construction and installation: compact equipment, easy installation, high protection level, strong adaptability

WE-T180 mainframe can be provided with magnetic suction, holding pole, wall mounting and other mounting methods, according to the size assessment, the actual installation effect is roughly as follows.

Where the device antenna can use a glue stick antenna (inside the box) or a suction cup antenna (leading out of the box)

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