Level TROLL Water Level Sensor and Datalogger

levleTROLL

The Level TROLL contains everything needed for water level measurement and data logging--level and temperature sensors, a data logger, internal power in a 18.3mm (0.72 in) diameter housing with a lot of exciting new capabilities. Since it is built entirely from rugged titanium that is welded to eliminate o-ring seals, you can have total confidence in all applications, even marine environments. The Level TROLL is the easiest way to monitor level ever! With the Level TROLL, you'll discover perfect connections with our new Twist-Lock(TM) connectors (patent pending). And, they are extendable--an industry first! Forget having to change batteries. Our new super low-power system guarantees long-term operation plus the unit can be powered with external power. System integration is easy with built-in RS-485/232 Modbus, SDI-12, and 4-20mA communication capability. Are you ready to monitor level with absolute confidence? Try the new Level TROLL!

Applications:

River, lake & stream gauging
Long-term ground water monitoring
Water resource management, dams
Estuaries and coastal monitoring
Tidal influence & wave characterization
Landfill & industrial water levels
Water pumping management
Combined sewer overflow
Landslide & flood prevention
Marine buoys
Mine sites

Features & Benefits:

Level, temperature & data logging in a 18.3mm (0.72 in) OD -- fits in a 25mm (1 in) well !
Ultra-rugged, all-titanium design -- Perfect for fresh and marine water monitoring. No more worries about corrosion. Excellent for marine, brackish and other harsh environments.
TIG-welded seals -- Prevents flooding of instrument.
Ultra-low power system guarantees 5 years or 2-million data points -- Forget changing batteries or running out of power.
Uses external battery or line power -- no worries about running out of power.
Rugged Cables with Twist-Lock (TM) connectors that "lock" tight -- 100% reliability
Optional halogen-free cables (LSZH rated) -- no worries of toxic fumes if subjected to fire
Extend cables by simply adding additional segments -- maximizes your investment and maintain flexibility with your unit.
Easiest ever Win-Situ software -- get the data you need fast! Large, sizable display that's easy to see from a distance.
Super accurate sensors -- record minute changes in water level and temperature.
Pause logging feature -- Pause logging when removing a unit. Reinstall and restart where you left off!
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.
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
Modbus, SDI-12, and 4-20mA -- provides for easy connections to existing and online systems
Specify start and stop times for logging -- collect the data you need up to the date you want and no more
Friendly Wizards guide every step -- reduces complicated steps and the need for tedious manuals
-20 to 80C temperature range -- useful for research and applications with higher temperatures
100,000 data points of memory (1 MB) -- reduces the interval between data collection/site visits
Protective desiccant options -- allow for barometric compensation for maximum accuracy while preventing water; humidity intrusion
CE and FCC approved -- prevents susceptibility to outside emission interference and transient electrical surges
Submersible ranges up to 351m / cable length up to 1200m -- measure to the depth you need.
Ability to "undelete" files from the unit -- no worries of accidentally deleting your data.
And more!

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 / 100,000+
Logging Rate		User selectable from 1 min -- 49 days
Modbus		1/2 sec
SDI-12		1/2 sec
Measurement Types		Linear
		**dp = data points = single test, single parameter


Level Sensor		Silicon strain gauge
Type		Non-vented or 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: 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 (500 psi)
		Non-vented: 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 (500 psi)
		Note: subtract barometric pressure to obtain usable range


Temperature Sensor
Material		Silicon
Accuracy		+/-0.1C
Resolution		0.01C or better
Range		-20 to 80C


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 (Black)
		Vented or Non-Vented Halogen-Free Polyurethane - LSZH rated
		Vented FEP (Generic Teflon(R), Blue)

Minimum Computer System Requirements: 400MHz Pentium(R) II, 128MB RAM, 100MB free disk space, Internet Explorer(R) 5.0 or higher, Windows(R) 2000 Professional SP2 or better, or Windows XP Professional SP1 or better

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