This guide details the installation process for ET410 WiHART sensors. It assumes the user is familiar
with the operation of the IK220 installation kit.
Refer to User guide – IK220 installation kit for more detailed usage instructions.
Refer to Overview – ET410 WiHART system deployment for the full list of system documentation.
Table of contents
Safety notices ........................................................................................................................................................................ 2
Compatibility ........................................................................................................................................................................ 2
Technical background ......................................................................................................................................................... 2
Installation requirements .................................................................................................................................................... 3
Task 1. Mounting the sensor .............................................................................................................................................. 4
Task 2. Fitting the lanyard ................................................................................................................................................ 10
Task 3. Provisioning the sensor on the radio network ............................................................................................... 11
Task 4. Completing sensor installation .......................................................................................................................... 11
Task 5. Sealing the cladding .............................................................................................................................................. 12
Re-installing a sensor (if required) .................................................................................................................................. 13
Re-provisioning a sensor (if required) ............................................................................................................................ 13
Maintenance ........................................................................................................................................................................ 13
Installation guide - ET410 WiHART sensors
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 the relevant datasheet for restrictions on 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
ET410 WiHART sensors can be used in networks with other WirelessHART devices, including Permasense
and Rosemount ET210, ET310 and WT210 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 ET410 sensor requires no couplant and 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. The ET410 sensor
is not intended for use on painted pipes.
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.
Antenna
Power module
Head
Strap & lanyard slot
Foot
Once a sensor is installed, it will communicate with the gateway specified during installation and any other
sensors already installed that are assigned to the same gateway. These sensors form a wireless mesh
network. The gateway manages this mesh, selecting the best path to transmit data from each sensor to the
gateway. The gateway then delivers this data to the Permasense Data Manager software, which the end
user can use to view the data in a browser.
Installation requirements
Before sensor installation:
Emerson Smart Wireless gateway must be installed.
Network ID and provisioning information (join keys) for the gateway must be known.
Access to the sensor locations must be in place.
If lines are insulated, all insulation must be removed at sensor locations to allow suitable access for
sensor installation.
Hardware supplied with the sensor
Permasense ET410 sensor, complete with protective cap
Stainless steel circular heat shield, one per sensor
Lanyard kit, comprising 2m of 316 stainless steel lanyard with looped end and cable lock
Strap (3.5m / 138 inches) and strap tensioner
Permasense BP20E power module, one per sensor
Tooling supplied in IK220 installation kit
Rugged tablet PC, preloaded with Permasense installation software
CC21 USB powered commissioning communicator
Ratcheting wrench with 8mm socket
Tin snips
Hex key, 2.5mm, for power module retaining bolts
Task 1. Mounting the sensor
Note: Two people are required for this operation.
PPE of gloves and safety glasses or full face visor are recommended.
1. Identify the location where the sensor is to be fixed. The securing strap can be installed around pipes
up to 1m (40 inches) in diameter. Ensure all cladding and insulation is removed around the
circumference of the pipe at the desired sensor location.
2. Unbox the strap tensioner and strap from the packaging.
3. Cut a length of strap by wrapping it
around the pipe and cut where the strap
overlaps. Feed the strap into one end of
the strap tensioner and using the wrench
and socket provided, turn the screw on
the tensioner until the end of the strap
emerges from under the worm drive (at
least 5 turns of the worm screw are
required).
4. Clean the area of the pipe where the sensor will make contact, mainly to remove any particles which
might keep the transducer away from the pipe surface or damage the face of the transducer. A
permanent marker may be used to show exactly where each sensor is to be placed on the pipe.
5. Remove the protective cap from the sensor.
Note: Ensure tools and fastenings are kept away from the sensor when the cap is removed as there is
a strong magnetic field at the end of the sensor, and this can be damaged upon impact.
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