Multi-parameter Integrated Magnetic Level Indicator (Level + Temp + Pressure Monitoring)

Ordinary single-function magnetic level gauges can only measure liquid level independently. In chemical storage tanks, reaction vessels and oil depots, production management needs to obtain liquid level, medium temperature and tank pressure data synchronously to calculate material inventory accurately, judge medium volatilization risks and avoid overpressure safety accidents. Installing separate level gauge, temperature transmitter and pressure sensor requires multiple tank openings, which increases leakage risk, occupies installation space and raises overall procurement & installation costs.

Our multi-parameter integrated magnetic level indicator solves the pain of multi-instrument scattered installation. Based on standard side-mounted magnetic level gauge body, embedded high-precision temperature sensing element and pressure detection unit share one tank connecting nozzle, only one opening is needed on the tank wall to realize synchronous collection of level, temperature and pressure three core parameters. It can match 4-20mA, Modbus-RTU signal output according to site demands, compatible with existing DCS/SCADA systems.

Different from single-function WirelessHART wireless level gauge merely focusing on liquid level wireless transmission, this integrated model realizes three-parameter fusion measurement, which serves tank safety supervision and precise inventory management. Unlike local display type magnetic level gauge without any remote signal output, it supports multi-parameter data remote uploading. Compared with wired single-parameter transmitters, it reduces tank openings by two-thirds, lowers leakage hidden danger and simplifies on-site layout greatly.

The main measuring chamber still adopts full industrial pressure-resistant & anti-corrosion structure of standard magnetic level gauge, adapting to high temperature, high pressure and strong corrosive working conditions in petrochemical, fine chemical and pharmaceutical industries.

• Three-in-one Integrated Measurement: Level + Medium Temperature + Tank Pressure Single tank connection port acquires liquid level height, medium real-time temperature and internal tank pressure at the same time, supports automatic inventory calculation and over-temperature / over-pressure linkage alarm.
• Single Nozzle Installation, Reduce Tank Leakage Risk Only one process connection opening is required on the storage tank, avoiding multiple hole openings caused by separate installation of level, temperature and pressure instruments, improving the sealing safety of pressure vessels.
• Local Visual Observation + Multi-parameter Remote Transmission Dual Mode Bi-color magnetic flapper ensures intuitive on-site liquid level checking for inspectors; integrated sensing module transmits all groups of parameter data remotely to control room for centralized monitoring.
• Complete Anti-corrosion Material Matching System Chamber, flange and float optional 304SS, 316L, Titanium, Hastelloy C276, Inconel 625, 310S, perfectly adapt corrosive solvents, acid-base media, high-temperature oil and other complex working conditions.
• Classified high-temperature protection structure Nylon-aluminum flappers withstand medium temperature ≤150℃ for conventional storage tanks; all-metal flappers support medium temperature up to 400℃ for thermal oil reaction vessels. Temperature & pressure electronic sensors adopt heat insulation isolation design when medium temperature exceeds 120℃.
• Diversified signal expansion options Built-in signal conversion unit can be configured with 4-20mA analog output or Modbus-RTU digital bus output to match different factory control systems.
• Built-in safety early warning logic Supports preset threshold values of high temperature, overpressure and ultra-high liquid level, once exceeding limits, signals will be triggered for interlock protection.
• Compatible with passive limit alarm switches Reserve guide rail installation positions for reed switches, users can add liquid level upper/lower limit alarm functions on the basis of multi-parameter monitoring.

This integrated multi-parameter magnetic level indicator retains the pressure-resistant structural specifications of standard side-mounted magnetic level meters, adds embedded temperature and pressure sensing components without changing the original tank installation mode. All wetted parts are customizable for anti-corrosion requirements, and sensing electronic components are equipped with heat insulation structures for high-temperature working conditions to guarantee long-term stable multi-parameter acquisition. Complete technical parameters are shown in the table below:

This multi-parameter integrated magnetic level indicator is mainly used for tank full-condition safety monitoring scenarios that require simultaneous acquisition of level, temperature and pressure data:

• Petroleum & chemical raw material storage tank area Monitor oil level, medium temperature and tank pressure synchronously, realize accurate inventory accounting and volatile leakage risk early warning of hydrocarbon media.
• Pharmaceutical & fine chemical reaction kettles Track material liquid level, reaction temperature and tank pressure during batch production, provide complete parameter data for production traceability.
• Energy industry condensate & deaerator tanks Cooperate with DCS system to realize linkage control of water replenishment, pressure relief and temperature adjustment of power plant auxiliary tanks.
• New energy electrolyte storage tank warehouse Monitor liquid level, temperature and internal pressure of electrolyte tanks to prevent expansion and leakage caused by temperature rise.
• Waste liquid storage tank of environmental protection factory Realize full-state monitoring of waste liquid tanks, avoid safety accidents such as tank overpressure and overflow.

Q1: What is the essential difference between multi-parameter integrated level meter and WirelessHART wireless magnetic level gauge?

A: The WirelessHART type only measures liquid level and transmits data wirelessly, focusing on wiring-free transformation; this multi-parameter model integrates level, temperature and pressure three measurement functions, mainly used for tank safety monitoring and precise inventory management, which belongs to full-state monitoring equipment.

Q2: Will integrated temperature and pressure sensors affect the measurement accuracy of liquid level?

A: The temperature and pressure sensing units are embedded on the side wall of the measuring chamber without contacting the float assembly, the magnetic follow-up structure for liquid level measurement operates independently, and the level measurement precision will not be interfered.

Q3: Can this multi-parameter level meter be installed on existing old storage tanks?

A: Yes. It adopts the same flange installation standard as conventional magnetic level gauges, can replace the original single-function level gauge directly without modifying the tank structure, and complete multi-parameter upgrading with one replacement.

Q4: Does the three groups of parameters share one signal line for output?

A: Support two modes: multi-channel independent 4-20mA output or Modbus bus centralized transmission. Modbus mode can transmit level, temperature and pressure data through one set of bus cables to save wiring cost.

Q5: Can high-temperature medium damage the built-in temperature and pressure sensors?

A: The measuring cylinder can withstand 400℃ high-temperature medium. When medium temperature exceeds 120℃, the sensing part adopts isolated heat insulation structure to isolate heat conduction and protect electronic sensing components.

If you need to install multiple transmitters on storage tanks to collect level, temperature and pressure data and want to reduce tank openings, cut installation costs and realize tank full-state safety monitoring, our multi-parameter integrated magnetic level indicator is a cost-effective upgrade solution. It combines local observation and multi-parameter remote uploading, with various anti-corrosion materials and signal modes optional.

Provide your tank pressure grade, medium characteristics, required measurement parameters and control system type, our technical team will formulate targeted installation scheme and offer factory quotation.

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