The Vented Data Logger is a reliable and labour-efficient solution for continuous groundwater level monitoring and data logging. Suspended in a well using a direct-read cable, the logger maintains a connection to the surface, allowing users to access the instrument directly at the wellhead without removing it from the well.
Specifications
General
Specification | Details |
|---|---|
Memory | 128,000 readings |
Download Speed | 19,200bps (128,000 readings downloads in 6 minutes) |
Factory Calibrated Ranges | 10m(aprx. 30ft), 30m(aprx. 100ft), 60m(aprx. 200ft), 120m(aprx. 400ft) |
Operational Range | 10m(aprx. 30ft), 30m(aprx. 100ft), 60m(aprx. 200ft), 120m(aprx. 400ft) All ranges are representative of use at sea level. Use above sea level will result in higher operational range |
Overpressure Rating | 2X Factory Calibrated Range |
Operating Temperature | -20°C to 80°C |
Battery Life (Readings) | up to 5 million (depending on usage) |
Battery Life (Max) | Up to 15 Years (depending on usage) |
Wetted Material | 316 Stainless Steel, Delrin® & Rubber Buna (PFAS free Wetted Materials) |
Length | 14.5cm (5.7″) |
Diameter | 22mm (9″) |
Weight | 170g (.37lbs) |
Pressure
Specification | Test Condition | Typical | Max |
|---|---|---|---|
Water Level Accuracy (Typical) | +/-0.05%FS (0°C to 50°C) | ||
Water Level Accuracy (Max Error) | +/-0.1%FS (0°C to 50°C) | ||
Water Level Resolution | 0.01%FS | ||
Pressure Accuracy | Typical error band of +/-0.3%FS | ||
Pressure Response Time | 100ms | ||
Pressure Stability | 500,000 pressure cycles from 0% to 50%FS | +/-0.05%FS/y | +/-0.1%FS/y |
Temperature
Specification | Test Condition | Typical | Max |
|---|---|---|---|
Temperature Accuracy Typical | -20°C to +50°C | +/-0.05°C | +/-0.1°C |
-40°C to +70°C | +/-0.05°C | +/-0.15°C | |
-40°C to +100°C | +/-0.1°C | +/-0.2°C | |
-55°C to +125°C | +/-0.1°C | +/-0.25°C | |
-55°C to +150°C | +/-0.1°C | +/-0.3°C | |
Temperature Resolution | 0.0078°C | ||
Temperature Reading Range | -55°C to +150°C | ||
Temperature compensated range | 0°C to 50°C | ||
Temperature Response Time | 2 minutes | ||
Lifetime Temperature Stability | 300 hours continual reading at 150°C | +/-0.03°C | |
Temperature Repeatability | 8 Averages | +/-0.0078°C | |
Temperature cycling and hysteresis | 8 Averages | +/-0.0156°C | |
Temperature sensor meets ASTM E1112 and ISO 80601-2-56. Nist Traceability |
Characteristics
Specification | Details |
|---|---|
Communication Protocol | RS-232 (custom implementation) |
Battery | Lithium Cell |
Realtime clock crystal accuracy | 32,768Hz +/- 10ppm |
O-Rings | Rubber Buna Primary Seals, Viton Secondary Seals |
Transducer Material | 316 Stainless Steel, Piezoresistive Silicon |
Logging Modes | Linear, and predetermined Log |
Launch modes | Immediate and future start |
Environmental Rating | IP68 |
Certification | CE |
Communication Interfaces | USB via Heron Com-Cable |
Programming | Desktop Application (Windows 10) |
Logging Intervals | 1 second to 255 hours |
Supported Pressure Units | mH2O (Meters), FTH2O (Feet), psi, bar, atm, cmHg, hPa, inH2O, inHg, kgf/cm², kgf/m², KPa, Mpa, ksi, mmHg, N/m², psf, Pa, Torr |
Supported Temperature Units | Celsius, Fahrenheit, Kelvin, Rankine |