Hydrostatic Sensor

For use with TLS and ILS Systems

Veeder-Root's Hydrostatic Reservoir Sensor accurately detects fluid level change in the reservoir and interstice of a double-wall storage tank. Dual-float and single-float technology models are ideal for locations with high or low water tables.

Available in a dual-float or single-float configuration. The Dual-Float Hydrostatic Sensor is ideal for high groundwater areas, and can differentiate between a high level alarm condition and a low level alarm condition. If an inner-wall leak occurs, the brine solution seeps into the tank lowering the brine level in the reservoir. The Dual-Float Sensor will then trigger a low level alarm. If an outer-wall leak occurs, the groundwater seeps into the reservoir. The dual-float sensor will then triggers a high level alarm.

The Single-float sensor is ideal for low groundwater areas, since it only detects low level alarm conditions. If an inner wall leak occurs, the brine solution seeps into the tank. If an outer-wall leak occurs, the brine solution leaks out of the tank. In both cases, the brine level decreases and the Single-Float Sensor triggers a low level alarm.

This product is designed to meet California's requirement for secondary space monitoring for tanks as required by AB 2481.

Features

Dual-float sensor alarm conditions:

Leak in inner wall triggers a low level alarm
Leak in outer wall triggers a high level alarm in high groundwater areas; low level alarm in low groundwater areas

Single-float sensor alarm conditions:

Leak in inner or outer wall triggers a low level alarm in low groundwater areas

Temperature Rating

Storage: -40 degrees C to + 70 degrees C
Operating: -25 degrees C to +40 degrees C

Rests in salt brine solution of up to 30% calcium chloride

Cable length: 12 feet Single-Float Sensor Dimensions: 6.0" high, 2.5" diameter

Dual-Float Sensor Dimensions: 19.3" high, 2.5" diameter

Withstands removal from reservoir several times a year without sensor damage
Clear plastic housing for visual inspection or float operation

Standard Models

Form No.	Description
794380-301	Single-Float Hydrostatic Reservoir Sensor
794380-303	Dual-Float Hydrostatic Reservoir Sensor

Hydrostatic Reservoir Sensor Console Capability

The Series 7943 Hydrostatic Reservoir Sensor is comparable with the following consoles:

Console	Series
TLS-350R*	8482
TLS-350*	8470
TLS-350J	8470
TLS-300i	8485
TLS-300C	8485
TLS-250i	7941

*Note: An Interstitial Sensor Interface Module is required for the use of the Hydrostatic Sensors with the TLS-350 Console.

-	Related Links and Documents


»	Liquid-Phase Product Detectors - Results of U.S. E.P.A. Standard Evaluations (576013-917 Rev. B) (PDF) Products: 847990-001, 847990-002
»	Point Sensor - Liquid Contact Product Detectors - Certification Reports - Results of U.S. E.P.A. Standard Evaluations (576013-864 Rev G) (PDF) Products: TLS-350, TLS-300, TLS-300i, ILS-350, EMC, EMC BASIC, ProMax, ProPlus, Simplicity
»	Sensor Products - Application Guide (577013-750 Rev M) (PDF)
»	MicroSensor - Installation Guide (576013-285 Rev D) (PDF)
»	Oil/Water Separator Sensor Installation Manual (577013-737 Rev B) (PDF)
»	High/Low Level Sensor for Guardian Systems Installation Guide (576013-309 Rev C) (PDF)
»	Hydrostatic Reservoir Sensors for Double-Wall Fiberglass Tanks - Installation Guide (576013-795 Rev E) (PDF)
»	Universal Mounting Kit Installation (576013-827 Rev B) (PDF)

Features

Temperature Rating

Standard Models

Hydrostatic Reservoir Sensor Console Capability

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