User Manual

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8Chapter 2
Installation
With a direct line-of-sight, the WEMS components communicate up
to 2500 feet. However, without a direct line-of-sight, this distance
decreases.
• Place the iCCU as high as possible to improve signal transmission
and reception.
• Avoid placing sensor modules and iCCUs near electrical equipment
or large metal objects. Electrical devices, such as large electric
motors, power lines, antennas, and electric fences cause electro-
magnetic interference that adversely affect signal quality. Large
metal objects, which are electrically conductive, reflect and scatter
radio signals when placed between two RF-linked modules.
The Luna iMonitoring sensor modules, iCFR, and iCCU meet FCC requirements
for CFR 47 Part 15, which dictate that operation of the device is subject to the
following two conditions:
1 The device will not cause harmful interference, and
2 The device must accept any interference received, including interference
that may cause undesired operation.
Because the device meets FCC requirements for CFR 47 Part 15, the customer
requires no operating license to transmit radio signals using the device.
The Luna iMonitoring iTLM-1 sensor module utilizes ultrasonic technology and is
subject to the following additional authorization: Verification as a non-consumer
ISM device as specified by Part 18.
The Luna iMonitoring iCCU is subject to the following additional authorization:
Verification as a transmitter as specified by Part 25.
Any changes or modifications not expressly approved by the manufacturer will
void the user’s authority to operate the equipment.
Every radio-linked device in the Luna iMonitoring Intelligent Wireless Sensor Suite
carries a label. Figure 2-1 below shows a typical label for a sensor device which
includes the Model Number of the device, the FCC ID Number, the UL certification,
the FCC certification(s), and the Serial Number.