ZORN ZFG 3.1 | Light Weight Deflectometer (LWD)

Dynamic plate load test: handy and compact

The ZFG 3.1 is an ergonomic handheld device made of robust plastic. This version of our Light Weight Deflectometer comes with the smallest measuring electronics available. A durable full-leather case is also included. This protects the measuring electronics against dust and splashing water during the measurement process. The transparent control window allows you to see all measured values and navigate through the measurement process. An acoustic signal indicates when the test impact can be dropped and when the test is complete.  

Power is supplied by four standard R6 batteries (Mignon / AA). You can perform approximately 1,500 tests with one set of batteries (included in delivery). 

You will find all the important details in the technical data sheet.

The current ZFG 3.1 is even more convenient, lighter and, above all, more comfortable to use than its predecessors. Just like its counterpart, the ZFG 3000, the simple menu navigation of the ZFG 3.1 allows even inexperienced users to safely perform and evaluate dynamic plate load tests. The ZFG 3.1 is an upgrade to the existing ZFG 3.0.

The Light Weight Deflectometer enable compaction testing of soils in the fields of road construction, civil engineering, landscaping, bridge construction, etc. The LWD is used to determine the dynamic deformation modulus Evd (MN/m², dynamic plate load test). This provides information about the bearing capacity and compaction quality of soils.

The mechanical components of the LWD are surface-finished, making them robust and durable. We also offer a case for storing the measuring electronics and printer (optional). The measuring electronics are equipped with a data memory for more than 10,000 measurements. The mega-powerful battery ensures long runtimes for smooth measurements on the construction site. The integrated GPS receiver is included, as is the integrated WLAN module for wireless transmission of measurement data (fast and secure to smartphone, tablet or PC).

All the advantages of the LWD can be found here.

ZFG 3.1 Fallgewichtsgerät mit Elektronik im Koffer

Handy and compact

Expandable with many accessories.

Integrated WLAN

With this new model, ZORN has made the transmission of measurement data via WLAN (Wi-Fi) to mobile devices standard. WLAN can be activated with just two clicks in the electronics settings. That's it. Data transmission via SD card remains available as an alternative. 

Background: The fast transfer of Evd measurement data is becoming increasingly important for LWD users. In 2019, ZORN successfully introduced the ZORN D plus measurement electronics, which connects the ZFG to smartphones and tablets via Bluetooth (controlling the measurement process, evaluating data, creating reports: all directly via the connected device).

Nevertheless, there is still a majority of users who prefer a ‘real’ electronics box for their Light Weight Deflectometer. For them, the ZFG 3.1 is the perfect choice: a tailor-made measuring device with independent software. Measure, transfer data to a corresponding end device via Wi-Fi or SD card and create reports with the specially developed ZORN FG WebApp

Improved GPS receiver

For the LWD 3.1 we offer an improved, internal GPS receiver. This captures the signals from up to three different satellite systems (GNSS) simultaneously, namely GPS, Galileo and GLONASS. This improves the horizontal accuracy to two meters - compared to the three to five meters we had with GPS only (all values CEP). The GPS module is now integrated.

As usual, the LWD 3.1 can be supplemented with a thermal printer. For easy transport, we recommend the matching case. Further accessories can be found here.

In just 2 minutes you get the result

The operation of the LWD Light Weight Deflectometer is convenient and simple, as faulty measurements are automatically excluded by an internal plausibility check. This ensures that even a non-expert can operate the LWD professionally after a short briefing and perform precise measurements for soil compaction.

Perform measurements as usual and create full-fledged test reports with the ZOFN FG Software. All you need to do is register online once, then you can log in anytime, anywhere and get started. The app registration is not device-specific and is available to you free of charge. 

ZORN Light Weight Deflectometer - very easy to handle
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