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INSIDE & OUTSIDE USE
PT-VW-SG Vibrating wire and strain gauge pressure transducers
Rugged pressure transducers for closed-circuit and demanding geotechnical applications. Available in vibrating wire and strain gauge versions with lightning protection and a broad pressure range.
Overview
Vibrating wire and strain gauge Pressure Transducers are designed for uplift measurement in concrete dam foundations, overflow settlement measurement in earthfill and rockfill dams, and other applications requiring a rugged and reliable pressure transducer for measuring fluid pressure in closed circuits.
Both the strain gauge and vibrating wire versions are supplied with either a 1/4-inch NPT thread or a 1/4-inch or 1/8-inch NPT port for easy connection to pipes and other hydraulic circuit components being monitored. Both transducers can be read dynamically when required by the application.
Operational advantages
- Small, rugged package for harsh environments.
- Unique cable seal system to ensure water-tight integrity.
- Broad selection of pressure ranges.
- Compatibility with RST data loggers and computer data acquisition systems.
- Highly reliable lightning protection supplied as standard on both strain gauge and vibrating wire versions.
Applications
The manufacturer highlights civil infrastructure, energy, surface mining, and underground mining applications. They are suitable for monitored hydraulic circuits and geotechnical environments where dependable long-term pressure instrumentation is required.
Product features
- 1/4-inch NPT port or thread.
- Small rugged package for harsh environments.
- Unique cable seal system for water-tight integrity.
- Broad selection of pressure ranges.
- Compatibility with RST instrumentation and computer data acquisition systems.
Specifications: strain gauge transducer
- Accuracy: ±0.1% F.S.
- Standard pressure ranges: 0.035 MPa to 103 MPa.
- Compensated temperature range: -10 C to 80 C.
- Field rangeability: yes.
- Signal outputs: 4-20 mA, 0-5 VDC, 0-10 VDC, 4-20 mA + RS485, 0-5 VDC + RS485.
- Temperature output: optional.
- Standard wetted materials: 316L SS, polyamide, fluorocarbon.
- Electrical termination: sealed cable.
- Dimensions: 109 mm x 25 mm diameter.
- NPT thread: 1/4-inch male with 1/4-inch or 1/8-inch NPT thread.
Specifications: vibrating wire pressure transducer
- Over-range: 1.5 x F.S.
- Resolution: 0.025% F.S. minimum.
- Accuracy: 0.1% F.S.
- Standard pressure ranges: 0.07 MPa to 20 MPa.
- Operating temperature: -20 C to 80 C.
- Diaphragm displacement: less than 0.001 cc at F.S.
- Thermal zero shift: less than 0.05% F.S./C.
- Materials: hermetically sealed stainless steel housing.
- Thermistor: NTC 3K ohms at 25 C.
- Thermistor interchangeability: ±0.2 C.
- Thermistor resolution: 0.1 C.
- Dimensions: 150 mm x 25 mm.
- NPT thread: 1/4-inch female with 1/4-inch or 1/8-inch NPT port.
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