Level Troll 500 Level Sensor

 

The Level TROLL 500 is a breakthrough for water level logging and temperature monitoring. The Level TROLL is a new product from In-Situ Inc and contains everything which is needed for water level measurement and data logging --level and temperature sensors and data logger. It can be powered internally by a 3.6V Lithium battery or can be powered externally. The product is built entirely from rugged titanium which means it is perfect for all types of applications, even in tough marine environments. The Level TROLL is the easiest way to monitor level ever. The Level TROLL features a super low power system, built in RS-485/232 Modbus, SDI-12 and 4-20mA communication capabilities make system integration easy.

Typical Applications include:

  • Borehole level logging
  • Flow measurements
  • Landslide and flood prevention
  • Marine buoys
  • Long-term groundwater monitoring
  • Water resource management,dams
  • Water pumping management
  • Stormwater monitoring
  • Research studies
  • Mine sites
  • Wetland monitoring
  • Watershed drainage basin monitoring

Features and Benefits

  • An ultra-rugged, all titanium design
  • Super accurate sensors
  • TIG-welded seals which prevent instrument flooding
  • Ultra low power system
  • Can be powered internally or externally
  • System integration is made easy with built in RS-485 MODBUS, SDI-12 and 4-20mA communicaation capabilities.
  • Twist lock connectors
  • Choice of logging types-Linear, Linear fast and Event
  • Ability to "undelete" files from the unit
  • Easy to read memory and battery gauges
  • Submersible ranges up to 351m/cable length up to 1200m
Specifications  
   
General  
Operating temerature range -20 to 80ºC
Dimensions 18.3 mm (0.72 in) OD,21.6cm (8.5in) long
Weight (includes Hanger) 0.197 kg (0.43lb)
Output options Modbus(RS-485/232), SDI-12, 4-20mA
Housing material Titanium
Nose cone material Black Delrin
   
Power  
Internal battery 3.6 Lithium battery
Typical life* 5 yrs or 2-million readings
External power 8-36VDC
*Whichever comes first.
   
Logging  
Memory/data points** 1MB/100,000+
Logging rate User selectable from 0.5sec--49days
Modbus 0.5sec
SDI-12 0.5 sec
Measurement types Linear, Fast linear, Event
**Data point = time and date plus one parameter logged
   
Level sensor Silicon strain gauge
Type Vented, or non-vented
Material Titanium
Accuracy FS*** +/-0.05% (15C)
FS=Full Scale +/-0.1% (-5 to 50C)
  +/-0.25% (-20 to -5C and 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, (3446 kPa, 500 psi)
  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, 500psi)
Note:subtract barometric pressure to obtain usable range.
   
Temperature Sensor  
Material Silicon
Accuracy +/-0.1ºC
Resolution 0.01ºC or better
Range -20ºC to 80ºC(-4ºF to 176ºF). Temperature compensated: -5ºC to 50ºC (23ºF to 122ºF)
   
Rugged Cable with Twist-Lock Connectors  
Connector Twist-Lock connector OR stripped and tinned wire
Number of conductors 6
Internal Conductor Material Polypropylene
Diameter 6.7mm (0.265 in) Break strength 127kg (280 lbs)
Bend radius 2X diameter of cable = 13.72mm/0.54 in
Cable Types:  
  Vented or Non-Vented Polyurethane
  Vented or Non-Vented Haloge-Free Polyurethane-LSZH rated
  Vented FEP (Generic Teflon)

Download Product Specification Download PDF
Download User Manual Download PDF

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