5
TI 01W06A51-10EN
Mar.26,2019-00
2. Avoiding locations near the ground
When it comes to establishing wireless communication, the ground is an enormous
obstacle. Stable communications can be possible by installing the sensor far above the
ground.
3. Installing the Sushi Sensor perpendicular to the ground
Install the Sushi Sensor perpendicular to the ground whenever possible. The Sushi Sensor
is designed so that the quality of wireless communication reaches the utmost level when it is
installed perpendicular to the ground.
2.3
Influence on Existing Devices
This section describes influences the Sushi Sensor and the gateway (LoRaWAN device) may
have on existing devices.
As a prerequisite for evaluation of influences, it is assumed that general industrial equipment
satisfies the IEC standards or equivalent requirements related to immunity levels shown below.
The table below shows the offset distance in which the electric field intensity generated from the
LoRaWAN device installed near an existing device falls below the required level.
Devices
Standards to comply with
Required
immunity level
Offset distance
Devices for heavy
industrial environments
Measuring instruments for
industrial environments
• IEC 61000-6-2
• IEC 61326-1:
Industrial Electromagnetic
Environment
10V/m
8cm
Devices for residential and
commercial environments
Information technology
equipment
Measuring instruments for
general environments
• IEC 61000-6-1
• CISPR 24
• IEC 61326-1:
Basic Electromagnetic
Environment
3V/m
26cm
For devices such as motors and compressors classified as devices for heavy industrial
environments used in plants, providing an offset distance of eight centimeters or more between
the electronic circuit that controls the industrial device and the antenna of the LoRaWAN device
reduces the electrical field intensity generated from the LoRaWAN device below the required
immunity level. For devices for residential and commercial environments and general information
technology equipment, an offset distance of 26 centimeters or more is required to ensure
electrical field intensity below the required immunity level.
