Water Level Measurement


Aquarian 1000Plus

The Aquarian 1000Plus satisfies basic electronic local water level indication needs for boiler drums, feedwater heaters and other liquid level applications. Based on the conductivity probe technology now widely accepted in the industry, it has been specifically designed to meet the industry’s growing needs and demand for a reliable, cost effective and versatile means of sensing water levels in a variety of applications. Some of which include generator coolant liquid level, blow down flash tank and turbine extraction drains.

The electronic system in the Detection and Verification (D&V) unit is connected to one to four probes which can be mounted directly into pressure vessels or factory mounted in a column. The D&V unit is capable of distinguishing between water and steam even in water with conductivities as low as 0.5 micromho. Diagnostics are provided to maximize system reliability and redundant power supplies are incorporated to maintain system operation should one of the dual AC supplies fail.

In addition to level sensing, the Aquarian 1000Plus provides output relays for each probe, which serve as a system trip, alarm, or on-off control device. The system is completely field configurable to provide maximum versatility.

Each Aquarian 1000Plus system includes one D&V center and a maximum of four conductivity probes with related hardware.

Key Features:
• Up to 4 conductivity probes
• Redundant power supplies
• Wire continuity monitoring
• Level fault monitoring
• Local fault indication
• Field configurable
• Economical alternative to float level switches



1/4A @ 120VAC
1/8A @ 240VAC

Contact Ratings 1
10A @ 24VDC (resistive)
10A @ 120VAC (resistive)
1/3 hp @ 120VAC

11 3/4" x 7 3/8" x 6 3/4"

Ambient Temperature
32°F to 140°F (0°C to 60°C)

Conductivity Capability
0.5 micromho

Column Ratings 2
2000 psig @ 750°F
3000 psig @ 750°F

1 Form A or C contacts available
2 Other materials available for higher temps



Aquarian 1000Plus
Aquarian 1000Plus

Download a PDF version of full specifications and options for this product:
Aquarian 1000Plus Specifications & Options

Download a Customer Order Form for this product:
Aquarian 1000Plus Customer Order Form

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