OBSESSIO X1
Potentiometric displacement
An interface for potentiometric displacement sensors, intended in particular for monitoring cracks and expansion joints. Accuracy ≤ 20 µm (module + probe).
See the product — OBSESSIO X1Remote crack monitoring with a wireless crack meter
Monitor how cracks evolve with ADVARNA wireless crack meters, connected crack sensors that send their readings remotely. Compare the potentiometric and LVDT interfaces and the PACK FISSURE AUTONOME to prepare your instrumentation project.
What is a wireless crack meter?
A wireless crack meter is a sensor fixed on both sides of a crack that continuously measures how its opening changes and sends the readings remotely by radio (Sigfox, LoRaWAN or LoRa P2P). Unlike a crack tell-tale or a gauge read on site, it records the evolution over time without visiting the site.
Define what you want to measure
Before choosing a sensor, specify the displacement to monitor, the expected stroke and the accuracy you need. Also describe the structure, the fixing points and the exposure conditions.
Three solutions to consider
OBSESSIO X2
LVDT & potentiometric displacement
An LVDT interface, also compatible with potentiometric sensors, for monitoring cracks and structural displacements. LVDT accuracy ≤ 10 µm.
See the product — OBSESSIO X2
PACK FISSURE AUTONOME
Crack monitoring kit
A crack monitoring pack with a 25 mm or 50 mm stroke and a one-year subscription included.
See the product — PACK FISSURE AUTONOMEPreparing transmission and data access
The transmission options vary by product: Sigfox, LoRaWAN and, for some models, LoRa P2P. Specify the connectivity available on site and your needs for viewing, exporting data and alerts, so the proposed configuration can be checked.
Frequently asked questions
How do I choose between X1, X2 and the pack?
Compare the measuring principle, the sensor stroke, the stated accuracy and what is included: OBSESSIO X1 for a potentiometric sensor (≤ 20 µm), OBSESSIO X2 for an LVDT sensor (≤ 10 µm), the PACK FISSURE AUTONOME for a kit with a MIRAN KTR2 sensor and a one-year subscription. See our comparison to prepare your choice.
Does the PACK FISSURE include a subscription?
Yes, a one-year Sigfox or LoRaWAN subscription is included. Contact ADVARNA for the terms after the first year.
Can the sensor alone tell me the condition of the structure?
No. The measurements track how a phenomenon evolves. Interpreting them and making decisions about the structure is the responsibility of the qualified professionals on the project.
Crack tell-tale, crack gauge or wireless crack meter: what is the difference?
A tell-tale (plaster or glass) only shows whether the crack has moved. A crack gauge is read by eye, on site. A wireless crack meter measures the opening continuously, with an accuracy of ≤ 20 µm (OBSESSIO X1) to ≤ 10 µm (OBSESSIO X2 with LVDT), and sends the readings remotely.
Let’s talk about your monitoring needs
Tell us the type of structure, the number of cracks to monitor and the measurement characteristics you need.