Many gas companies choose this solution to retrofit existing low-temperature storage tanks. The core reasons are: it supports installation without stopping production, does not require dismantling the original old gauge, is easy to install, does not affect normal gas supply, and significantly reduces the threshold and risk of digital transformation for old tanks. Internal personnel can complete the installation by referring to guidance videos, and after commissioning, the data is directly uploaded to the cloud.
First, let's look at the industry status. In recent years, newly manufactured oxygen, nitrogen, and argon storage tanks have gradually come standard with intelligent remote level gauges: liquid levels can be viewed on mobile devices, inventory is managed uniformly in the cloud, and abnormalities trigger automatic alerts. However, a large number of domestic gas companies still have a substantial stock of old tanks equipped with traditional mechanical gauges that lack remote transmission capability, data storage, and alarm functions. Over time, three types of problems repeatedly arise: inaccurate inventory measurement, hidden losses that are difficult to investigate, and reconciliation discrepancies; manual inspections are costly, and data lacks traceable records; meanwhile, safety supervision and compliance requirements continue to tighten, and relying solely on mechanical gauges makes it difficult to provide a complete historical ledger.
Everyone is aware of the value of digital transformation, but many companies have yet to implement it due to concentrated concerns: traditional retrofitting is complex and costly, worries about poor compatibility between new instruments and existing tanks, and fears that the measurement stability of new remote gauges may be insufficient, leading to investment not meeting expectations.
The SMTD Wireless Remote Differential Pressure Gauge is specifically designed to address the challenges of retrofitting old tanks. The features of the solution are as follows:
1. Retaining Old Gauges, Adding Retrofit
The retrofit does not require removing the existing mechanical gauge; the original instrument remains on the tank as an on-site reading backup. The SMTD Wireless Remote Differential Pressure Gauge is installed by connecting to the tank's pressure ports, with a complete set of installation accessories. Connected according to the “H end to liquid phase, L end to gas phase” standard, and once sealed and leak-checked with no leakage, the installation is complete. The process requires no tank emptying, no welding or open flame, continuous operation, and uninterrupted gas supply. Company personnel can install it themselves by following instructional videos; if needed, the DeleeTech technical team can be scheduled to implement on-site installation.
2. Specially for Deep Low-Temperature Conditions, Compatible with Various Media
This instrument is specially developed for low-temperature storage tanks and quick-freeze storage tanks for liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquid nitrous oxide, LNG, etc., supporting synchronous acquisition of liquid level and pressure parameters. Liquid level accuracy is ±1% FS; liquid level range is 0~50kPa to 250kPa; pressure range is 0~4MPa; supports multiple units including %, kg, L, kPa, liquid level height H; intrinsically safe and explosion-proof, IP67 protection rating, capable of adapting to complex outdoor tank environments. It is compatible with most vertical and horizontal quick-freeze oxygen, nitrogen, and argon storage tanks on the market, supporting retrofitting of both new and old tanks.
3. 4G Wireless Cloud Transmission, Replacing Manual Meter Reading
Equipped with a built-in 4G wireless transmission module, no on-site wiring is needed, and once installed, the data is automatically uploaded to the cloud platform. Managers can remotely view real-time liquid level and pressure data for each site via mobile phone or computer; anomalies such as high/low liquid levels or overpressure can trigger message alerts. The platform automatically stores all historical data, which can be queried and exported at any time, satisfying the requirements for safety supervision records and traceability.(SMTD supports multiple communication methods such as: 4-20mA, RS485, Bluetooth, supports dual communication modes, supports customization)
4. Long Battery Life Design, Low Maintenance Pressure
Optional versions powered by lithium batteries or external power supply. The lithium battery version has a lifespan of about 3 years, eliminating the need for frequent battery replacements and reducing on-site calibration frequency. Independently developed in China, with a controllable delivery cycle, offering good cost-performance ratio. The technical team provides remote debugging and after-sales support.
For gas operation companies, the value of retrofitting is very clear: the modification process almost causes no production loss; it upgrades management from manual point inspections to proactive cloud-based warnings and controls, allowing medium loss to be quantified, historical data to be traceable, and safety hazards to be detected in advance. This is also why many gas operation companies prioritize using this solution for the digital upgrade of old tanks.
Traditional mechanical gauges can be upgraded to intelligent remote monitoring without shutting down production, enabling same-day installation and same-day online operation. If you need to evaluate a tank retrofit solution, submit your contact information so a specialist can serve you.
Consultation Hotline: 400-690-8880
Jiangsu DeleeTech Measurement and Control Tech Co., Ltd.， National High-Tech Enterprise ， The core team has over 30 years of experience in sensor and industrial instrument R&D, focusing on three core measurement dimensions: liquid level, pressure, and temperature. We provide a one-stop low-temperature tank digital management solution from sensing layer instruments, 4G IoT transmission, to cloud data platforms.
