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Permasense Ltd, Alexandra House, Newton Road, Manor Royal, Crawley, RH10 9TT, UK
www.permasense.com
+44 20 3002 0922
Safety notices
Installation of this sensor in an explosive environment must be in accordance with the
standards and practices appropriate to the site.
Review the
Regulatory Compliance
section in
Datasheet
–
ET310 WiHART sensor
for
restrictions for safe installation.
Only fit approved Permasense or Rosemount BP20E power modules.
Use supplied lanyard to prevent sensor falling from heights, potentially causing injury.
The sensor contains magnets which can be harmful to pacemaker wearers.
The sensor can be suddenly attracted to other objects such as tools. This can cause injury as well as
damage to the sensor. Only remove the protective cap when necessary and then take great care.
Cut strap may have sharp edges, wear appropriate PPE.
Do not put fingers in the gap between the tensioner bolts and the strap.
Do not cut the strap while it is under tension as this may result in damage or injury.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
Ensure the device is installed with an antenna separation distance of at least 20cm (8”) from all persons.
Potential electrostatic charging hazard - do not rub or clean with a dry cloth.
Compatibility
ET310 WiHART sensors can be used in networks with other WirelessHART devices, including Permasense
and Rosemount WT210, ET210 and ET410 sensors. Compatible with Emerson Wireless 1410 and 1420
Gateways. For compatibility with other gateways, contact Permasense.
Technical background
Permasense systems are corrosion monitoring solutions for
use in oil and gas and other industrial facilities using
permanently installed ultrasonic wall thickness measurement
sensors.
An ET310 sensor requires no couplant and is intended for
use on painted pipes. It is held against the surface of the pipe
using a low force produced by its internal magnet and the
securing strap. Multiple sensors can be attached to a pipe
using a single strap.
Once correctly installed the sensor creates ultrasonic waves
in the surface of the pipe which travel through and
reverberate in the pipe wall. One or more echoes are seen
in the received signal. The thickness is calculated from this
signal.
Ring
Antenna
Power module
Head
Shoe
Lanyard hole
Foot
Strap Slot
slot
