Compact, lightweight and cost-effective, the AquaTroll 500 can be used for spot measurements and sampling with the Wireless-Troll Com battery pack, as well as a robust probe for long-term monitoring applications with an external data logger or the VuLink telemetry unit. Like the Aqua TROLL 600, it has 4 slots and can be flexibly equipped with the market-leading drift-resistant in-situ smart sensors. 

Probe features 

- LCD display for visual check of battery, sensor and memory status. 

- Integrated Bluetooth interface, RS-485/MODBUS, SDI-12  

- Field-proven design with corrosion-resistant housing. Two-sided titanium protective cage serves as a storage cap/ 50 mL calibration cup. 

• Low calibration effort due to drift-stable sensors 
   
• The compact size enables use in level tubes from 5 cm / 2 inch diameter. 
   
• Versions: with vented/ unvented/ without pressure sensor in the probe body. for various pressure ranges up to 200 m.   

See data sheet for measuring ranges and accuracy of the sensors.

- Optional anti-fouling system: The programmable double-sided anti-algae wiper integrated into the probe head automatically cleans all sensors for reduced maintenance and a longer service life. The protective basket with copper coating serves as a passive anti-fouling system. 

In-situ platform 

The AquaTroll 500 has the usual advantages of the in-situ measuring platform: simple and low-maintenance use and calibration of the probes, and the proven corrosion-resistant probe design with titanium protective cage.  The extremely stable and length-true Rugged Troll cables with the patented titanium bayonet connectors are available in any length and can also be subsequently coupled/extended using the Rugged Cable Splitter/Cable Extender. The easy-to-use free VuSitu app for Android/Apple provides instant data, graphs, measurement logs, GPS coordinates and auto-calibration, as well as simplified routines for log setup or creating sampling protocols.  

The Troll range combines market-leading water quality sensors with smartphone mobility by allowing you to collect and analyze data using the VuSitu Mobile app on your Android™ device. Alternatively, the data can be read out via the Windows software Win-Situ on the PC or via the HydroVU Online Portal. 
Nitrate (ion-selective) 

The AquaTroll probes can be flexibly equipped with the market-leading, drift-resistant in-situ smart sensors. The calibration is stored directly on the sensor head. This means that the sensors can be inserted into any AquaTroll 500 - 800 in any slot with a flick of the wrist and used immediately. The robust sensors can be replaced quickly and easily, even when wet.  

Available sensors:  

• Temperature/ conductivity/ TDS combined sensor 
• pH/ORP combination sensor 
• Turbidity sensor 
• Optical oxygen sensor (RDO®) 
• Chlorophyll-a (fluorimeter) 
• Blue-green algae: Phycocyanin & Phycoerythrin (Fluorimeter) 
• FDOM (Fluorescent Organic Matter, Fluorimeter) 
• Crude oil sensor (fluorimeter) 
• Uranine/Fluorescein (Fluorimeter) 
• Ammonium (ion selective) 
• Chloride (ion selective) 
• Nitrate (ion selective)

• Datenblatt Aqua TROLL 500

• Wireless TrollCom
   
• Wiper 
   
• VuLink 
   
• In-Situ Troll Cable Extender 
   
• In-Situ Troll Cable Splitter 
   
• In-Situ Troll Desiccant Cartridges 
   
• Low Flow System (flow cell)