Austdac,
utilising the SILBUS two wire transmission system, have
designed and had approved for underground use, an interface
from the SILBUS
to the GEL Extensometer roof monitoring system.
The
roof convergence monitor consists of extensometers, which
are a variable resistance.
Austdac
have designed an interface to monitor the output of the
extensometers and via the SILBUS
two wire transmission, the real time data of the extensometer
is transmitted to the surface, or local PLC network.
The
surface installation could consist of a computer interface
to the SILBUS
underground network, allowing real time access to the extensometer
with the facility for trending, logging, and alarming of
underground roof activity.

Learn
more about this product by clicking on the brochure below:
Roof
Convergence Monitoring