The simplest and cost-effective solution to verify your agent storage contents
Verifying the liquid level inside halocarbon fire extinguishing cylinders can often require expensive and heavy equipment, intervention of outsourced expert services, or system decommissioning. To support faster and more straightforward inspections, Viking has developed the Ultrasonic Liquid Level Indicator — a compact device that allows users to check agent storage contents easily and in a cost-effective manner, without dismantling equipment or interrupting operations. Designed for a variety of cylinder types and suppression agents, it provides a practical solution for routine maintenance and verification tasks.
Specifications and functions
The device uses an ultrasonic sensor to easily detect the liquid level inside the cylinder. After applying a small amount of coupling gel, the user places the sensor onto the cylinder surface. An LED immediately lights up when placed at or below the liquid level, and will switch off when placed above.
- Operating temperature range: 0 °C to +50 °C
- Approved cylinder diameter: 406 mm
- Cylinder size range: 80 L up to 180 L.
- Compatible agents: FK-5-1-12 and HFC-227ea
- Fill range:
- FK-5-1-12: 40 to 216 kg
- HFC-227ea: 60 to 205 kg

Ultrasonic Level Liquid Level Indicator – light on
Key advantages
- User-friendly
- Quickly check total mass of agent (both gas and liquid) in seconds.
- Liquid level labels facilitates direct reading without charts or documentations.
- Simple operation with an easy ON toggle.
- Design and performance
- Very accurate level-to-weight mass conversion.
- Up to twice the precision of other content monitoring technologies: ±2.5%.
- Provides more than 6 hours of autonomy.
- Suited for a large range of gas cylinder sizes.
- Compact and portable design.

Ultrasonic Liquid Level Indicator – Approvals
The ULLI is FM approved under FM 5600 “Clean Agent Extinguishing Systems” standard and CE marked.

Disclaimer
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