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Introducing the NEW Level TROLL® 700... the next breakthrough for professional water level monitoring applications including single or multi-step aquifer testing, precision river gaging, 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 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. |
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Applications:
- Multi-step aquifer testing
- Slug tests
- Pumping tests
- Tidal influence & wave characterization
- River, lake, stream gaging
- Landslide & flood prevention
- Stormwater monitoring
- Flow measurements
- Research, studies
- Marine buoys
- Water pumping management
- Estuaries and coastal monitoring
Features & Benefits:
- Ultra-rugged, all-titanium design – Perfect for fresh and marine water monitoring. No more worries about corrosion. Excellent for marine, brackish and acidic sites.
- Super accurate sensors – record minute changes in water level and temperature.
- TIG-welded seals – Prevents flooding of instrument.
- Ultra-low power system guarantees 5 years or 2-million readings – Forget changing batteries or running out of power.
- Uses external battery or line power – no worries about running out of power.
- RS-485 MODBUS, SDI-12, and 4-20mA – provides for easy connections to existing and online systems
- Twist-Lock connectors that “lock” tight – 100% reliability
- Halogen-free cables (LSZH rated) – no worries of toxic fumes if submitted to fire
- Sealed desiccant options – allow for barometric compensation for maximum accuracy while preventing water & humidity intrusion
- Extend cables by simply adding additional segments – maximizes your investment and maintain flexibility with your unit.
- -20 to 80ºC temperature range – useful for geothermal and hot spring research and monitoring
- Easiest ever Win-Situ® software – get the data you need fast! Large, sizable display that’s easy to see from a distance.
- Linear logging – perfect for long-term monitoring
- Pause logging feature – Pause logging when removing a unit. Reinstall and restart where you left off!
- Specify start and stop times for logging – collect the data you need up to the date you want and no more
- Ability to “undelete” files from the unit – no worries of accidentally deleting your data.
- Data saved by sites not files – collect and save information by site automatically. No need to transfer data later.
- Easy-to-read memory and battery gauges – know exactly how much is left
- Friendly Wizards guide every step – reduces complicated steps and the need for tedious manuals
- Submersible ranges up to 351m / cable length up to 1200m – measure to the depth you need.
- FCC and CE emission tested – prevents susceptibility to outside emission interference and transient electrical surges
- Version, range, and manufacturing info printed on side of the unit – know the details of the unit without opening the software. Reduces accidental over pressuring
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 points of memory (4MB) – reduces the interval between data collection
Click here for more details on the Level TROLL®
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| General: |
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| Operating temperature range |
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-20 to 80C |
| Dimensions |
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18.3 mm (0.72 in) OD, 21.6cm (8.5 in) long |
| Weight (includes hanger) |
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0.197 kg (0.43 lb) |
| Output options |
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Modbus (RS-485/232), SDI-12, 4-20mA |
| Housing material |
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Titanium |
| Nose cone material |
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Black Delrin® |
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| Power |
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| Internal battery |
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3.6V Lithium |
| Typical life* |
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5 yrs or 2-million readings |
| External power |
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8-36VDC |
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*Whichever comes first. See battery guide for details. |
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| Logging |
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| Memory / data points** |
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4 MB / 350,000+ |
| Logging Rate |
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User selectable from 0.25 sec -- 49 days |
| Modbus |
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0.5 sec |
| SDI-12 |
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0.5 sec |
| Measurement Types |
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Linear, Linear Average, Event, True Logarithmic, Step Log, Fast Linear |
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**data point = time and date plus one parameter logged |
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| Level Sensor |
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Silicon strain gauge |
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Vented |
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Titanium |
| Accuracy, FS*** |
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+/-0.05% (15C) |
| FS = Full Scale |
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+/-0.1% (-5 to 50C) |
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+/-0.25% (-20 to -5C & 50 to 80C) |
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*** Accuracy with 4-20mA output option: +/-0.25% typical |
| Resolution |
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0.005% FS or better |
| Range |
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Vented:
- 3.5 m, 11.5 ft (34.4 kPa, 5 psi)
- 11 m, 35 ft (103.4 kPa, 15 psi)
- 21 m, 69 ft (206.8 kPa, 30 psi)
- 70 m, 231 ft (689.5 kPa, 100 psi)
- 211 m, 692 ft (2068 kPa, 300 psi)
- 351 m, 1153 ft (3446 kPa, 500 psi)
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Non-vented:
- 10.9 m, 35.8 ft (206.8 kPa, 30 psi)
- 60.1 m, 197.3 ft (689.5 kPa, 100 psi)
- 200.7 m, 658.7 ft (2068 kPa, 300 psi)
- 341.3 m, 1120 ft (3446 kPa, 500 psi)
- 692.9 m, 2273 ft (6795 kPa, 1000 psi)
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| Temperature Sensor |
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| Material |
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Silicon |
| Accuracy |
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+/-0.1C |
| Resolution |
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0.01C or better |
| Range |
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-20 to 80C |
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| RuggedCable® with Twist-Lock Connectors |
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| Connector* |
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Twist-Lock connector OR stripped & tinned wire |
| Number of conductors |
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6 |
| Internal Conductor Material |
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Polypropylene |
| Diameter 6.7mm (0.265 in) |
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Break strength 127 kg (280 lbs) |
| Bend Radius |
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2X diameter of cable = 13.72mm / 0.54 in |
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| Cable Types: |
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Vented or Non-Vented Polyurethane |
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Vented or Non-Vented Halogen-Free Polyurethane - LSZH rated |
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Vented FEP (Generic Teflon®) |
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Minimum System Requirements: 400MHz Pentium® II, 128MB RAM, 100MB free disk space, Internet Explorer® 5.0 or higher, Windows® 2000 Professional SP2 or better.
 Download In-Situ® Modbus Networking Specifications | www.modbus.org
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