Solinst 3250 LevelVent 5 Water Level Datalogger
The Solinst LevelVent 5 is a vented version of our popular Levelogger®. The highly-accurate datalogger is designed to record water level and temperature measurements during shallow groundwater and surface water deployments.
The LevelVent 5 logger contains pressure and temperature sensors, a battery, memory for up to 150,000 data logs, and hydrophobic filter within a 22 mm x 173 mm (7/8" x 6.8") stainless steel housing with a corrosion-resistant coating.
The LevelVent uses a gauged pressure transducer; it is open to the atmosphere via a vented cable to the wellhead. The compact LevelVent wellhead is designed to fit in a Solinst 2" Well Cap Assembly, and provides easy connection for communication accessories.
The vented cable and Solinst LevelVent 5 logger are protected from moisture by permanent, built-in desiccants and hydrophobic filters in the logger and the wellhead.
The vented pressure transducer is made of Hastelloy®, making it extremely durable and accurate in a wide range of temperature and monitoring conditions. The sensor provides an accuracy of 0.05% FS, and can withstand 2 times over-pressure without permanent damage.
Vented Datalogger Advantages
• Continuous, reliable water level data for longterm monitoring projects
• No barometric compensation required, saving data processing time
• Instant water level data for real-time aquifer test results
Features:
Corrosion and abrasion-resistant coating baked-on using polymerization technology
Gauged pressure sensor for highly-accurate water level measurements: 0.05% FS
Compact wellhead makes deployment simple using a Solinst 2" Well Cap Assembly
Communication cables and accessories connect directly to the wellhead
Long-lasting battery included in logger
Built-in hydrophobic filters and desiccants – no need to replace, reduces maintenance
Applications:
Ideal for shallow deployment: up to 20 m (65 ft)
submergence
Aquifer characterization: pumping tests, slug tests, etc.
Stream gauging, lake, reservoir and dam management
Watershed, drainage basin and recharge monitoring
Stormwater and runoff monitoring
Water supply and tank level measurement
Long-term water level monitoring in wells and surface water
| Level Sensor | Piezoresistive Silicon with Hastelloy Sensor |
| Accuracy | ± 0.05% FS Typical |
| Stability of Readings | Superior, low noise |
| Resolution | 0.001% FS to 0.0006% FS |
| Units of Measure | m, cm, ft., psi, kPa, bar, ºC, ºF |
| Normalization | Automatic Temp Compensation |
| Temp. Comp. Range | 0ºC to 50ºC |
| Temperature Sensor | Platinum Resistance Temperature Detector (RTD) |
| Operating Temperature | -20ºC to 80ºC |
| Temp. Sensor Accuracy | ± 0.05ºC |
| Temp. Sensor Resolution | 0.003ºC |
| Battery Life Estimate | 10 years (based on 1 reading/minute) |
| Clock Accuracy | ± 1 minute/year (-20ºC to 80ºC) |
| Maximum # Readings | 150,000 sets of readings |
| Memory | Slate and Continuous |
| Communication | 9600 bps Solinst USB |
| Size: | 7/8" x 6.8" (22 mm x 173 mm) |
| Weight | 190 grams (6.7 oz.) |
| Corrosion Resistance | Baked-on coating using polymerization technology (inside and out) |
| Other Wetted Materials | Delrin®, Viton®, Polyurethane (TPU boot) 316L stainless steel, Hastelloy, PFAS-free PTFE coating |
| Sampling Modes | Linear, User-Selectable with Repeat Mode, & Event, Future Start, Future Stop, Real-Time View |
| Measurement Rates: | 0.125 second to 99 hours |
| Barometric Compensation | Automatic |