Ship Bilge Level Control of Tuning Fork Liquid Level Switch

Product catalog summary

Introduction
The document discusses the importance of reliable liquid level control equipment in ship bilge areas, particularly in the engine room, which houses various electromechanical power equipment. These environments are prone to interference signals that can cause false alarms, making reliable equipment crucial to avoid potentially disastrous malfunctions.

Challenges in Engine Rooms
Engine rooms are hazardous areas characterized by noise, heat, vibration, and constricted spaces. These conditions can affect the accuracy of liquid control equipment, emphasizing the need for reliable systems.

Solution: Jiwei Ring-11 Tuning Fork Liquid Level Switch
The Jiwei Ring-11 Tuning Fork Liquid Level Switch is highlighted as a suitable solution due to its:

Compact design with a 40mm fork length for use in constricted spaces.
High sensitivity with a measurable medium density as low as 0.5g/cm³.
Strong resistance to disturbances such as foam, bubbles, and vibration.
Capability to operate in high-temperature environments up to 250℃.
Multiple output options including relay, two-wire system, NAMUR, and transistor.
Certification for SIL2/SIL3 Functional Safety, Intrinsic Safety, and Flameproof Enclosure explosion protection.
High reliability through vibration frequency detection.

User Experience
After initial testing, the user found the Ring-11 switch to be stable, safe, and reliable, leading to a decision to establish a long-term relationship with Jiwei due to its high cost-performance ratio.

Catalog excerpts

Ship Bilge Level Control of Tuning Fork Liquid Level Switch-1

Ship Bilge Level Control of Tuning Fork Liquid Level Switch The liquid level control equipment of ship bilge are generally installed in ship engine room. The engine room contains main marine engines, auxiliary power devices, steam boilers, ventilation devices, compressed air devices, marine pumps, pipework, water-based firefighting system, as well as automation system, etc. These electromechanical power equipment are all in a narrow engine room, producing interference signals. However, some liquid level switches cause false alarm due to the signal interference, which put a great test to reliable liquid control equipment, because in many cases the consequences of control equipment malfunction may be disastrous. In addition, an engine room and the associated machinery spaces are hazardous areas and even in the best-run vessels, great care must be taken to avoid accidents. As well as being a noisy, hot, and vibration affected workspace, engine and machinery layouts mean constricted passageways, stairs, obstructions and exposed pipes, cabling, and other hazards. The vibration and hazard working condition can also affect the accurate measurement of the liquid control equipment. Because the environment in an engine room is usually hot, humid and noisy, a normally unmanned engine room is a considerable benefit for the engineering crew. So the reliable liquid control equipment play a significant role in this situation. After carefully comparing the parameters and performance indexes, the user found that Jiwei Ring-11 Tuning Fork Liquid Level Switch fully meets the design requirements and the working conditions:

Open the catalog to page 1

Ship Bilge Level Control of Tuning Fork Liquid Level Switch-2

● With only 40mm fork length, specially designed for pipelines and other applications with constricted space. ● High sensitivity due to the precisely pre-adjusted harmonic resonant frequency of fork, the lowest measurable medium density can be as low as 0.5g/cm³. ● With strong disturbance resistance ability, not influenced by foam, bubbles, viscosity, vibration and other liquid characteristics. ● Industry-leading performance for high temperature working environment. Process temperature can reach up to 250℃. ● Four optional outputs: relay output, two-wire system, NAMUR and transistor. ● Passed...

Open the catalog to page 2