MiniTROLL | Water Dataloggers | Water Transducers

In-Situ MiniTROLL

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The miniTROLL is self-contained and completely submersible and it features the smallest diameter at only 0.72 inches (18.3mm)! TheminiTROLL is used by water professionals around the world to collect real-time information for analysis of both short- and long-term water level trends.

FEATURES

Smallest diameter at only 0.72 inches (18.3mm)
Powerful onboard data logger
Internal memory - up to 1MB (440,000 data points)
Linear, linear average, logarithmic, and event logging modes
User-replaceable AA batteries - no need to return to the factory!
High quality vented Quick-Connect cable (FEP or Polyurethane) - Fully detachable!
Ultimate 4-way pressure compensation including automaticbarometric compensation
Optional stainless steel backshell for cableless applications orsuspension by low-cost wire
Real-time crystal clock
Networking and telemetry capable
Accuracy certified to NIST-traceable standards
Multiple product versions - select only the features you need to match your budget
Always upgradeable!

In-Situ instruments are famous for their ease-of-use and the miniTROLL is no exception. With intuitive Windows-based Win-Situ software you will be able to operate the miniTROLL right out of the box. We have designed the software to be intuitive, with Wizards to step you through every operation. The miniTROLL puts our 25 years of experience into a field-proven tool, used by water professionals in virtually every profession.

User Replaceable Batteries! (Most Ecological and Economical Choice)
Built-in Barometric Compensation options
More Options!! - Gauged (vented) and Absolute (non vented) options
Direct-Read and Wire Suspension Options
No need to merge data sets for temperature and pressure
Powerful and Easy to Use Software
Upgradeable via the Internet
Version Upgradeable - even downhole!
Watertight Pocket PC and Windows interface

The miniTROLL has been deployed for years in all corners of the earth. We continuously improve the miniTROLL in both hardware and software design to give the customer a tool that isthe most current, powerful and has the lowest cost of ownership. Many of the features that make miniTROLL reliable are hidden behind the scenes in our extensive Quality Control and manufacturing process. Other items you may be interested in are built-in and designed to give you a tool that is engineered for years of trouble-free and effortless monitoring. These features include:

316L Stainless Steel Body (far more durable than plain 316 stainless)
Non-Volatile memory
Motorola HC11 Processor
Super-Accurate, Real-time Crystal Clock (More Accuracy Means Less Error)
Digitally Compensated, Media Isolated Silicon Strain-gauge Pressure Sensor
Pressure Rating: 2x range / 3x burst
Up to 6years of Data Logging Capability at 15 minute intervals
FEP(Teflon Equiv.) Cable Option for Harsh Environments Operating Temperature: -5C to 50C

Our Customers and their clients demand accuracy and precision. The miniTROLL has been extensively tested against competing units in every operating environment known. The result? The miniTROLL is considerably more accurate. Our published specifications are very conservative and reflect our high regard for the integrity of data in all environmental conditions, not just the lab. We stand behind our accuracy by providing a calibration report with EVERY miniTROLL. Some competitors do not include an calibration report. Why? Their accuracy is simply an average of poor accuracy readings (see chart below). They can honestly say their Full Scale specification is good due to the "cancellation" of the negative and positive errors or an average of the pressure readings over temperature.

Pressure Accuracy: 0.05%fs @15°C and 0.1%FS over entire range
Temperature Accuracy: +/- 0.25C over entire range
Resolution: 16-bit A-D converter: 1mm (0.00531%FS) for a30-psi sensor
Automatic Barometric Compensation
Automatic Temperature Compensation - across the full temperature range from -5 to 50°C
Fluid Density Correction
Gravitational Acceleration Correction
Liquid Density Correction
NIST-Traceable Calibration

In designing the miniTROLL, as well as in our ongoing product support, we incorporate a philosophy of providing features that our customers will use and appreciate. It does not matter whether a product is the shortest, best-looking or most powerful. In the end, the product must perform flawlessly and effortlessly in the harsh environment of the real-world. Our extensive Marketing Research and world-class Research and Development team constantly test new product improvements and options in the real-world, with feedback from real-world users. This effort has enabled In-Situ to provide our customers with a menu of options to suit their needs as well as budget. All of the miniTROLL products share the same proven technology in both body and internal component materials. Our options simply give you the choice of the right tool for the job. The miniTROLL is also field-upgradeable(even downhole!), should the job requirements change. Here are some of the many optional additions to your toolkit.

Sensor Options

Pressure Only
Temperature Only
Temperature and Pressure
Gauged or Absolute (Vented or Non-vented respectively All probes are fully temperature compensated- 15, 30, 100, 300 and 500-psi (0-351m, 0-1152 ft)