DIGITAL SOLUTIONS
Corrosion Proof Vibrating Wire Piezometer
The RST Corrosion Proof Vibrating Wire Piezometers (VW2190 and VW2191-series) are specially designed for extreme corrosive environments including use under demanding acidic geotechnical conditions, such as in heap leach mineral processing facilities. They provide excellent long-term accuracy and reliability.
Overview
Overview
RST’s Corrosion-Proof Vibrating Wire Piezometers (VW2190 and VW2191 series) utilize the VW2100-series principle (vibrating wire technology), while providing enhanced corrosion protection. Vibrating Wire technology provides immunity to electrical noise, tolerates wet wiring common in geotechnical applications, and provides a robust design for long-term monitoring in harsh conditions.
VW2190-Series: Corrosion-Proof Piezometer
- Heavy-duty VW transducer in 316 stainless steel body.
- Glycol-filled bladder with PVC housing to protect the diaphragm.
- External anti-corrosive layer:
UV-resistant, solvent-free tape Heat-shrink adhesive for added durability. - Prevents corrosion on sensitive diaphragm in saline groundwater.
VW2191-Series: Acid-Resistant Piezometer
- Includes all VW2190 features plus enhanced cable and Piezometer body protection for highly acidic monitoring environments.
- Uses EL342202 signal cable: 2-pair, 22 AWG, orange HDPE jacket (0.25” Ø). HDPE selected for acid resistance and long-term durability.
- Recommended usage is in highly acidic conditions for reliable monitoring.
Product features
- Robust construction
- Field proven reliability and accuracy
- Anti-corrosive protection
Benefits
Benefits
Data insights
Ease of use
Improve safety
Features and benefits
Features and benefits
| Description | Specification |
|---|---|
| Over Range | 1.5 X F.S. |
| Resolution | 0.025% F.S. minimum |
| Accuracy | 0.1% F.S. |
| Operating Temperature | -20 to 80°C (-4 to 176°F) |
| Thermal Zero Shift | <0.05% F.S./°C |
| Materials | Hermetically sealed stainless steel housing, PVC, Solvent free tape, Stainless Steel (not exposed) |
| Thermistor Type | NTC 3K Ohms @ 25°C |
| Thermistor Interchangeability | ±0.2°C |
| Thermistor Resolution | 0.1°C |
| Pressure Range | 0.07, 0.175, 0.35, 0.7, 1.0, 2.0, 3.0, 5.0, 7.5 MPa |
Resources
Resources
Industries
Industries
Civil infrastructure
Energy
Surface metal
Underground mining
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We are a global leader in geotechnical, geospatial and structural monitoring. We deliver a complete portfolio, from sensors to services, for mining and civil infrastructure customers. Our expertise is grounded in Orica's innovation and technical excellence that span more than 150 years.
Contact an expert
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Whether you need support, want to request a quote or simply want to learn more, reach out to our Geosolutions team. We’re here to help.