File Name
Corrosion Proof Vibrating Wire Piezometer Brochure
Resource Type
Brochure| Language | Version | Download |
|---|---|---|
| English |
|
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
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.
| 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 |
- Copper heap leach pads.
- Monitoring wells with leachate solutions.
- Heap leach mineral processing facilities.
- Monitoring pore pressures in low pH conditions.
| PART # | DESCRIPTION |
| VW2190 | Heavy duty piezometer with bladder for saline environment with secondary corrosion protection. For use with EL380004, EL380004K or EL380004HDL cables |
| VW2191 | Heavy duty piezometer with bladder for corrosive environment with secondary corrosion protection. For use with EL342202 cable. |
| EL342202 | CABLE, 2 PAIR, 22 AWG OSD ORANGE HDPE JACKET 0.25”ø For use in acidic environments, leachate in land fills, and salt water. |
File Name
Vibrating Wire Piezometer Manual
Resource Type
Manual| Language | Version | Download |
|---|---|---|
| English | ELM0005W |
|
Speak with an Expert
I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd