Benefits of the Level TROLL 400 Data Logger
Level TROLL 400 Specifications
In-Situ Level TROLL 400,500, 700 and BaroTROLL Comparison
Overview
The Level TROLL 400 measures and logs water level, water pressure, and temperature in a maintenance-free system ideal for long-term monitoring at flood-prone or high humidity sites. Durable titanium construction guarantees long-lasting performance in fresh or saline groundwater and surface-water environments. Available in non-vented (absolute) pressure ranges up to 1120 ft (341 m). Integrate with telemetry systems and HydroVu Data Services for real-time feedback on all of your water monitoring sites.
- Sub-1 inch diameter for easy fit
- Non-vented (absolute) pressure ranges up to 1120 ft (341 m)
- Fully sealed, all titanium construction and sensors
- Flexible communication protocols (4-20 mA, SDI-12, RS-485)
- Direct-read or periodic data download capable
- NIST calibration report
- Rugged twist-lock cable sold separately
Benefits of the Level TROLL 400 Data Logger
- Zero maintenance – No desiccant required.
- Convenient real-time data – Open communication protocols integrate easily with existing telemetry systems and HydroVu Data Services, SCADA, or data logger/sampling system.
- Protect your data and your equipment – Solid titanium construction outlasts specially coated data loggers, even in harsh environments.
- Reliable data – Advanced accuracy and precision provide high quality results you can trust.
- Streamline data collection and analysis – Powerful software with special logging modes automates water level corrections, post-processing, report generation and data export.
- Reduce field time – Low-power loggers last 10+ years.
Level TROLL 400 Specifications
| Weight | 0.5 lbs |
| Dimensions | 8.5 x .72 in |
| Level/Depth/Pressure Sensor Range | 100 psia: 60 m (197 ft), 100 psig: 70 m (231 ft), 15 psig: 11 m (35 ft), 30 psia: 11 m (35 ft), 30 psig: 21 m (69 ft), 300 psia (200 m (658 ft), 300 psig: 210 m (692 ft), 5 psig: 3.5 m (11.5 ft), 500 psia: 341 m (1120 ft), 500 psig: 351 m (1153 ft) |
| Protocols | 4-20 mA, Modbus/RS485, SDI-12 |
| Memory | 4.0 MB |
| Logging Modes | Event, Fast Linear, Linear |
| Battery Type | 3.6 V lithium |
| Diameter | 1.83 cm (0.72 in.) OD |
| Level/Depth/Pressure Sensor Accuracy @ 15° C | ±0.05% Full Scale |
| Warranty | 3 Year |
| Battery Life | 10 years |
In-Situ Level TROLL 400,500, 700 and BaroTROLL Comparison
| General | Level TROLL 400 | Level TROLL 500 | Level TROLL 700 | Level BaroTROLL |
| Temperature ranges1 | Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Calibrated: -5-50° C (23-122° F) | Storage: -40-80° C (-40-176° F) Calibrated: -5-50° C (23-122° F) Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Calibrated: -5-50° C (23-122° F) | Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Calibrated: -5-50° C (23-122° F) | Operational: -20-80° C (-4- 176° F) Storage: -40-80° C (-40-176° F) Calibrated: -5-50° C (23-122° F) |
| Diameter | 1.83 cm (0.72 in.) | 1.83 cm (0.72 in.) | 1.83 cm (0.72 in.) | 1.83 cm (0.72 in.) |
| Length | 21.6 cm (8.5 in.) | 21.6 cm (8.5 in.) | 21.6 cm (8.5 in.) | 21.6 cm (8.5 in.) |
| Weight | 197 g (0.43 lb) | 197 g (0.43 lb) | 197 g (0.43 lb) | 197 g (0.43 lb) |
| Materials | Titanium body; Delrin® nose cone | Titanium body; Delrin nose cone | Titanium body; Delrin nose cone | Titanium body; Delrin nose cone |
| Output options | Modbus/RS485, SDI-12, 4-20 mA | Modbus/RS485, SDI-12, 4-20 mA | Modbus/RS485, SDI-12, 4-20 mA | Modbus/RS485, SDI-12, 4-20 mA |
| Battery type & life2 | 3.6V lithium; 10 years or 2M readings | 3.6V lithium; 10 years or 2M readings | 3.6V lithium; 10 years or 2M readings | 3.6V lithium; 10 years or 2M readings |
| External power | 8-36 VDC | 8-36 VDC | 8-36 VDC | 8-36 VDC |
| Memory
Data records3 Data logs |
2.0 MB
130,000 50 logs |
2.0 MB
130,000 50 logs |
4.0 MB
260,000 50 logs |
1.0 MB
65,000 2 logs |
| Fastest logging rate | 2 per second | 2 per second | 4 per second | 1 per minute |
| Fastest output rate | Modbus: 2 per second SDI-12 & 4-20 mA: 1 per second | Modbus: 2 per second SDI-12 & 4-20 mA: 1 per second | Modbus: 2 per second SDI-12 & 4-20 mA: 1 per second | Modbus: 2 per second SDI-12 & 4-20 mA: 1 per second |
| Log types | Linear, Fast Linear, and Event | Linear, Fast Linear, and Event | Linear, Fast Linear, Linear Average, Event, Step Linear, True Logarithmic | Linear |
| Sensor Type/Material | Piezoresistive; titanium | Piezoresistive; titanium | Piezoresistive; titanium | Piezoresistive; titanium |
| Range | Absolute (non-vented) 30 psia: 11 m (35 ft) 100 psia: 60 m (197 ft) 300 psia: 200 m (658 ft) 500 psia: 341 m (1120 ft) | Absolute (non-vented) 30 psia: 11 m (35 ft) 100 psia: 60 m (197 ft) 300 psia: 200 m (658 ft) 500 psia: 341 m (1120 ft) | Absolute (non-vented) 30 psia: 11 m (35 ft) 100 psia: 60 m (197 ft) 300 psia: 200 m (658 ft) 500 psia: 341 m (1120 ft) 1000 psia: 693 m (2273 ft) Gauged (vented) 5 psig: 3.5 m (11.5 ft) 15 psig: 11 m (35 ft) 30 psig: 21 m (69 ft) 100 psig: 70 m (231 ft) 300 psig: 210 m (692 ft) 500 psig: 351 m (1153 ft) | 30 psia (usable up to 16.5 psi; 1.14 bar) |
| Accuracy4 | ±0.05% full scale (FS) ±0.1% FS | ±0.05% FS ±0.1% FS | ±0.05% FS ±0.1% FS | ±0.05% FS ±0.1% FS |
| Resolution | ±0.005% FS or better | ±0.005% FS or better | ±0.005% FS or better | ±0.005% FS or better |
| Units of measure | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O Level: in., ft, mm, cm, m | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O Level: in., ft, mm, cm, m | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O Level: in., ft, mm, cm, m | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O |
| Temperature Sensor | Silicon | Silicon | Silicon | Silicon |
| Accuracy | ±0.1° C | ±0.1° C | ±0.1° C | ±0.1° C |
| Resolution | 0.01° C or better | 0.01° C or better | 0.01° C or better | 0.01° C or better |
| Units of measure | Celsius or Fahrenheit | Celsius or Fahrenheit | Celsius or Fahrenheit | Celsius or Fahrenheit |
| Warranty | 3 years | 3 years | 3 years | 3 years |
| Notes | 1 Temperature range for non-freezing liquids. 2 Typical battery life when used within the factory-calibrated temperature range. 3 1 data record = date/time plus 2 parameters logged (no wrapping) from device within the factory-calibrated temperature range. 4 Across factory-calibrated pressure range. 5 Across factory-calibrated pressure and temperature ranges. 6 Up to 5-year (total) extended warranties are available for all sensors—call for details. Delrin is a registered trademark of E.I. du Pont de Nemours and Company. Specifications are subject to change without notice | |||