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FST Hydrostatic level meter Riels

FST Hydrostatic level meter Riels

Product catalog summary

Overview
The Hydrostatic Level Meter FST-700 by Riels Instruments is a compact device designed for continuous level measurement of non-aggressive liquids in non-pressure environments such as tanks, boreholes, wells, reservoirs, and swimming pools. It features a silicon strain gauge sensor and evaluation electronics housed in a stainless steel probe.

Installation and Usage
The probe is installed by hanging it into the measured area. It includes a 2-wire cable with a capillary for atmospheric pressure compensation. For environments with strong turbulence, the probe should be placed in a stilling tube or away from turbulence sources. When measuring liquids other than water, output correction based on liquid density is necessary.

Features

Moisture-proof and anti-sweat design with IP68 protection.
Resistance to impact, overload, shock, and erosion.
Lightning protection and strong RFI & EMI protection.
Advanced digital temperature compensation.
High sensitivity, accuracy, frequency response, and long-term stability.

Applications

Building automation and constant pressure water supply systems.
Urban water supply and wastewater treatment.
Liquid-level testing and control in industrial processes and automation systems.
Hydraulic and hydropower engineering.

Technical Specifications

Accuracy: ±0.3%FS to ±1%FS.
Zero Drift: ±0.02%FS/°C.
Thermal Sensitivity Shift: ±0.02%FS/°C.
Long-term Stability: ±0.1%FS per year.
Frequency Response: 3.2kHz.
Temperature Range: Compensated (-20 to +85°C), Medium (-10 to +85°C), Storage (-40 to +125°C).
Overload Pressure: 200% FS.
Environmental Protection: IP68.

Electrical Connection

Signal Output: 4-20mA, 0-10Vdc, 0-5Vdc.
Supply Voltage: 9-30Vdc, 15-30Vdc.
Standard Range: Various mH2O levels.

Multifunctional Process Indicator A2X
The A2X is a family of LED indicators with universal input or analog temperature sensors. It features a 5-digit display for signals from industrial transmitters, programmable retransmission, and multiple threshold relay alarms. It is suitable for flush mounting with IP54 protection.

Catalog excerpts

HYDROSTATIC LEVEL METER Hydrostatic level meter Hydrostatic level meter FST-700 is compact measuring device containing silicon strain gauge sensor and evaluation electronics in stainless steel probe. From the probe housing comes out 2-wire cable with capillary (for atmospheric pressure compensation). For continuous level measurement of non-aggressive liquids without gross (solid) impurities in non-pressure tanks, boreholes, wells, reservoirs and swimming pools. Suitability for other than water liquids are advised to consult with the manufacturer. Installation is done by hanging the probe down into the measured area (tanks, boreholes). The probe is left hanging on the cable, or is placed on the bottom. • • Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments The cable includes an air compensation tubing (capillary), so the connection must be done in non-hermetic junction box. In tanks where there are strong turbulences or waves, the probe should be placed in the stilling tube, behind the wall, or at least at the maximum possible distance from the source of turbulence. When using other liquid than water it is needed to make the output correction with respect to the density of the liquid, eventually consult the applicationwith the manufacturer. Moisture-proof, anti-sweat, free of leakage troubles, IP68 Excellent resistance against impact, overload, shock and erosion Efficient lightning protection, strong anti RFI&EMI protection Advanced digital temperature compensation and wide working temperature scope High sensibility, high accuracy, high frequency response and long term stability Applicable Scope • • • • • Building Automation System and constant pressure water supply system Urban water supply and wastewater treatment Liquid-level testing and control in other automation systems Liquid-level testing and control in industrial process Testing and control in Hydraulic and hydropower engineering Electrical connection

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HYDROSTATIC LEVEL METER Technical specifications 2 wire Signal Output Supply voltage Tutti i dati ed i contenuti di questa scheda sono di proprietà esclusiva di Riels Instruments Specifications Accuracy ±0.3%FS ±0.5%FS ±1%FS Zero Drift ±0.02%FS/°C Thermal Sensitivity Shift ±0.02%FS/°C Longterm Stability (1 Year) ±0.1%FS Frequency Response (-3dB) 3.2kHz Compensated Temperature -20+85°C Medium Temperature -10+85°C Storage Temperature -40+125°C Overload Pressure 200% FS Medium Compatibility Various media compatible with the 316L stainless steel Environmental Protection IP68 Multifunctional process...

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FST Hydrostatic level meter Riels

FST Hydrostatic level meter Riels

Catalog excerpts

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