| Water Level Dataloggers |
Model 3001 Levelogger Edge
|
Model 3500 AquaVent
|
|---|---|---|
| Level Sensor | Piezoresistive Silicon with Hastelloy Sensor | Piezoresistive Silicon with Hastelloy Sensor |
| Sensor Type | Absolute | Gauged (Vented) |
| Ranges | 5, 10, 20, 30, 100, and 200 m | 5, 10, 20 m |
| Accuracy | ±0.05% FS (lifetime calibration) (+Barologger inaccuracy) | ±0.05% FS (lifetime calibration) |
| Units of Measure | cm, m, ft, psi, kPa, bar (ºC, ºF) | cm, m, ft, psi, kPa, bar (ºC, ºF) |
| Normalization | Automatic Temperature Compensation | Automatic Temperature Compensation |
| Temp Compensation Range | 0ºC to 50ºC | 0ºC to 50ºC |
| Barometric Compensation | Barologger Edge and Software Data Wizard | Automatic via vent tube |
| Temperature Sensor | Platinum Resistance Temperature Detector (RTD) | Platinum Resistance Temperature Detector (RTD) |
| Accuracy | ±0.05ºC | ±0.05ºC |
| Resolution | 0.003ºC | 0.003ºC |
| Battery | Built-in lithium battery | 4 x 1.5V AA lithium, user-replaceable in Wellhead |
| Battery Life | 10 years based on 1 reading every minute | 8 years based on 1 reading every minute |
| Clock Accuracy | ±1 minute/year (-20ºC to 80ºC) | ±1 minute/year (-20ºC to 80ºC) |
| Operating Temperature | -20ºC to 80ºC | -20ºC to 80ºC |
| Maximum Readings | 40,000 readings in FRAM memory, or up to 120,000 using linear data compression | 40,000 readings in FRAM memory, or up to 120,000 using linear data compression |
| Memory | Slate or Continuous | Slate or Continuous |
| Communication | Optical Infra-red: Solinst RS-232 9600 bps, 38,400 bps with USB optical reader, 1200 baud SDI-12 | 9600 bps Solinst USB, 1200 baud SDI-12, Modbus RS-485/RS-232 (various speeds) |
| Size | 7/8" x 6.25" (22 mm x 159 mm) | 7/8" x 7" (22 mm x 178 mm) |
| Weight | 4.6 oz. (129 grams) | 4.6 oz. (129 grams) |
| Corrosion Resistance | Hastelloy pressure sensor, Titanium ceramic PVD coating | Hastelloy pressure sensor |
| Wetted Materials | Hastelloy, 316L Stainless Steel, Delrin®, Viton®, Titanium ceramic PVD coating | Hastelloy, 316L Stainless Steel, Delrin®, Viton® |
| Programming Options | Levelogger PC Software, Solinst Levelogger App | Levelogger PC Software, Solinst Levelogger App |
| Sampling Mode | Linear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View | Linear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View |
| Measurement Rates | 1/8 second to 99 hours | 1/8 second to 99 hours |
| Deployment Options | Stainless steel cable, Kevlar cord, Direct Read Cable, etc. | Vented Cable & AquaVent Wellhead (SP or SPX) |
| Data Collection Options | Levelogger App Interface, DataGrabber, LevelSender, STS and RRL Telemetry | Levelogger App Interface, DataGrabber, LevelSender, STS and RRL Telemetry |
| Maintenance | Cleaning sensor, replacing o-rings | Cleaning sensor, replacing o-rings, checking vent tube (blow out fitting), no desiccants to replace |
| Applications |
- deeper applications, higher fluctuations - when barometric data is required (barometric efficiency) - very humid conditions, risk of wellhead flooding - areas prone to long-term freezing conditions - hard to reach areas, cumbersome deployment |
- shallow applications, low fluctuations - surface water, wetlands - watershed monitoring - stormwater and flood monitoring - no option for Barologger deployment, or don't want extra step of data compensation |
