LevelTROLL 700
Introducing the Level TROLL 700... the next breakthrough for professional water level monitoring applications including single or multi-step aquifer testing, precision river gauging, tidal influence studies, wave characterization, geothermal research, storm-event monitoring and more!
The Level TROLL 700 features a rugged, all-titanium construction that is TIG welded to eliminate o-ring seals, Twist-Lock (TM) connectors, an ultra-low power system that eliminates the need to change batteries, and it is only 18.3mm (0.72 in) in diameter making it perfect for 1-inch wells or observation tubing. The 700 series of the Level TROLL offers new logging modes such as Linear, Linear Average, Event, True Logarithmic, Step Linear, and Fast Linear for complete customization. Additional benefits of the Level TROLL 700 include "Pause" and "Re-Start" logging features, a larger memory (350,000+ data points), 0.25 sec sampling (4 samples per second), ability to store and manage up to 50 log files, user notes, advanced compensation settings, and more.
The Level TROLL comes standard with RS-485 Modbus, SDI-12, and 4-20mA communication options. It can be operated using a PC or a RuggedReader handheld and it can easily be connected to a SCADA or other online systems.
True Logarithmic sampling is commonly used for aquifer testing (pumping and slug tests) to collect a large volume of early-time drawdown data while minimizing the amount of data collected later on. A convenient new "Re-Start" feature makes multi-step pumping tests easy. When changing the rate of the pump to the next step, simply press the "Re-Start" button and the logarithmic sampling rate will re-start at the beginning collecting a log cycle within the same file! A single log file can be restarted as many times as needed. Other modes such at "Step Log" and "Fast Linear" provide additional monitoring flexibility.
Level TROLL 700 only features & benefits- Restart logarithmic sampling within the same file - Perform multi-step aquifer tests with ease!
- New logging modes - Linear, Linear Average, Event, True Logarithmic, Step Log, Fast Linear. Log the way you want to!
- Up to 50 logging files can be programmed in the Level TROLL - complete flexibility and new possibilities in logging
- Takes samples as fast as 0.25 seconds (4 samples/sec) - perfect for earthquake detection and wave modeling
- Up to 350,000 data records of memory (4MB) - reduces the interval between data collection
Applications:
- Multi-step aquifer testing
- Slug tests
- Pumping tests
- Tidal influence & wave characterization
- River, lake, stream gauging
- Landslide & flood prevention
- Stormwater monitoring
- Flow measurements
- Research, studies
- Marine buoys
- Water pumping management
- Estuaries and coastal monitoring
Specifications:
| General: | |
| Operating temperature range | -20 to 80C |
| Dimensions | 18.3 mm (0.72 in) OD, 21.6cm (8.5 in) long |
| Weight (includes hanger) | 0.197 kg (0.43 lb) |
| Output options | Modbus (RS-485/232), SDI-12, 4-20mA |
| Housing material | Titanium |
| Nose cone material | Black Delrin (R) |
| Power | |
| Internal battery | 3.6V Lithium |
| Typical life* | 5 yrs or 2-million dp |
| External power | 8-36VDC |
| *Whichever comes first. See battery guide for details. | |
| Logging | |
| Memory / dp** | 1 MB / 350,000+ |
| Logging Rate | User selectable from 0.25 sec -- 49 days |
| Modbus | 1/2 sec |
| SDI-12 | 1/2 sec |
| Measurement Types | Linear, Linear Average, Event, True Logarithmic, Step Log, Fast Linear |
| **data record = one parameter with timestamp | |
| Level Sensor | Silicon strain gauge |
| Type | Vented |
| Material | Titanium |
| Accuracy, FS | +/-0.05% (15C) |
| FS = Full Scale | +/-0.1% (-5 to 50C) +/-0.25% (-20 to -5C & 50 to 80C) *** Accuracy with 4-20mA output option: +/-0.25% typical |
| Resolution | 0.005% FS or better |
| Range | Vented:
|
| Temperature Sensor | |
| Material | Silicon |
| Accuracy | +/-0.1C |
| Resolution | 0.01°C or better |
| Range | -20 to 80°C |
| Rugged Cables with Twist-Lock Connectors | |
| Connector* | Twist-Lock connector OR stripped & tinned wire |
| Number of conductors | 6 |
| Internal Conductor Material | Polypropylene |
| Diameter | 6.7mm (0.265h) |
| Break strength | 127 kg (280 lbs) |
| Bend Radius | 2X diameter of cable = 13.72mm / 0.54 in |
| Cable Types: | Vented or Non-Vented Polyurethane Vented or Non-Vented Halogen-Free Polyurethane - LSZH rated Vented FEP (Generic Teflon(R)) |
Request additional information | Request price quote
