Centeron
®
Digital Two Channel Monitor Instruction Manual
Robertshaw Industrial Products
Page 4
3.0 Installation
A Quick Installation Guide, which provides an overview of the Digital Two Channel
Monitor installation procedure, is included with this product.
The following sections of this manual explain in detail the site selection and installation
process:
3.1
RF Site Guidelines
The Digital Two Channel Monitor contains sensitive alarm trigger circuitry and a radio
transmitter. Large metal objects such as buildings and vehicles may affect the
transmission of radio signals. Electrical equipment may produce electronic noise that
could adversely affect signal quality.
§
Direct line of sight between the Monitor and Receiver will provide optimum radio
reception.
§
The Monitor and Receiver can communicate at distances up to one mile under
optimum line-of-sight conditions.
§
When obstructions such as walls, buildings, and vehicles exist between the Monitor
and Receiver the distance between these units should be limited to less than 500 feet.
§
Multiple obstructions (such as two or more walls or a tank and a wall) between the
Monitor and Receiver should be avoided, if possible.
§
Electrically conductive objects such as metal buildings, concrete reinforcement rods,
tanks, silos, and vehicles reflect radio signals. This reflection can be either an
advantage or disadvantage to good radio reception at a particular installation site:
a. Metal objects between the Monitor and Receiver may reflect and scatter RF
energy and reduce radio signal strength at the Receiver.
b. Metal objects behind the Monitor or Receiver may increase the radio signal
strength at the Receiver by reflecting radio signals toward the Receiver.
§
Even small metal objects such as tank vents or toolboxes between the Monitor and
Receiver can significantly reduce radio signal strength if they are within a few feet of
the Monitor or Receiver. These objects can reflect radio signals and cause a RF
“shadow” which may prevent radio signals from reaching the Receiver.
