3001 Levelogger Edge vs. 3500 AquaVent

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