Varec Servo Tank Gauges

Varec Servo Tank Gauges use a servo-controlled displacer and measuring wire to provide high-accuracy liquid level measurement for tank inventory control and custody-transfer applications.

The family includes the NMS80 and NMS81 Proservo Tank Gauges, with measurement and operating capabilities that vary by model and configuration.

Process Controls Corporation - Varec Servo Tank Gauging Solutions

Available configurations support liquid level, interface level, spot and profile density, and tank- or water-bottom determination.

Model-specific options accommodate atmospheric and high-pressure applications, field communications, connected tank sensors, local indication, hazardous-area installations, and custody-transfer requirements.

Key Characteristics

Servo-operated displacer technology for high-accuracy liquid level measurement
Level measurement accuracy up to ±0.4 mm, depending on model and configuration
Configurable measurement of liquid interfaces and spot or profile density
Atmospheric and selected high-pressure tank configurations
Communication options including Modbus RS-485, V1, WM550, and HART
Model-specific integration of temperature, water-level, pressure, and overfill-prevention instrumentation
Available hazardous area and custody-transfer approvals based on the selected configuration