Magnetostrictive Level Meter

Product Description

The Magnetostrictive Liquid Level Meter is an advanced explosion-proof device based on the Wiedemann effect, designed for high-speed, accurate, and reliable liquid level measurement in explosive gas environments. It measures the absolute position of one or more floating balls at liquid-gas or liquid-liquid interfaces, providing real-time detection with both analog (4-20 mA + HART) and digital (RS485/Modbus) outputs. Featuring versatile probe designs, including rigid and flexible leads, it is ideal for harsh industrial environments, such as volatile or corrosive conditions. This meter excels in detecting multiple liquid levels or interfaces simultaneously, making it perfect for applications like chemical reactors, storage tanks, and fuel depots. Compliant with the GB 21117-2007T standard, it ensures exceptional performance and reliability.

Product Datasheet

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Features

Supports simultaneous detection of multiple liquid levels with high precision and repeatability
Provides absolute position output without requiring zero reset upon restart
Supports measurement at up to 5 points
Convenient for maintenance and monitoring
Offers multiple output options for versatile applications
Long service life with stable and dependable performance
Designed to minimize system heat generation, improving efficiency
Compliant with electrical safety standards for explosive gas environments

Technical Data

Output type

2-wire, 4-20 mA + HART/ Modbus
Output parameter

Liquid level, interface, temperature
Effective range

Rigid lead: 100 to 6,000 mm; flexible lead: 1,000 to 22,000 mm
Resolution ratio

1 mm
Nonlinear error

≤ ± 0.05% F.S
Repeatability precision

≤ ± 0.01% F.S
Indicating error

≤ ± 0.5% F.S
Temperature performance

≤ 100 ppm/ºC
Response time

≤ 100 ms
Working voltage

Rated working voltage: 24 V DC; normal operating voltage: 10 to 30 VDC
Protection rating

IP65
Measuring blind area

Upper blind area ≤ 50 mm; lower blind area ≤ 100 mm
Ambient temperature

- 30ºC to + 70ºC ;
Housing material

Aluminum alloy (standard), SS304 and other materials need to be customized
Medium density

≥ 500 kg/m3
Probe material

SS304, 316L, 304 + PTFE, 316L+ PTFE, other special materials need to be customized
Pressure bearing characteristics

≤ 2.5 MPa, exceed this pressure requires customization
Process connection

DN50 (2") and above (top mounted)
Electrical interface

2 M20 * 1.5
Operating environment

When the ambient temperature is lower than -30ºC, the meter head needs to be insulated on site (such as installing an incubator, etc.)
Overpressure protection

36 V
Polarity protection

Tandem diode
Electromagnetic compatibility

Compliance with the standard of GB 21117-2007-T
Insulation resistance

20 M (100 V)
Insulation strength

500 V
Other functions

5-point temperature measurement; with on-site display and setting functions
Explosion-proof marking

Ex db IIC T6 Gb, ExiaIICT6