Emerson 2130 RBM Consultant Pro, Reference Manual

Page: 52 / 394

2-32 Setting Up and Using Laser Alignment Fixtures
Communication Between the Fixtures and Analyzer
The analyzer conducts communication with the fixtures via a short-range, low-
power radio frequency (RF) carrier (916.5 MHz) or by cable.
Radio Frequency (Models 821500 and 822500 only) - With RF, communication
occurs in much the same manner as with other short-range wireless systems (for
example, cordless phones) — a direct line-of-sight communication is not required.
A typical operating range of up to 50 feet (15 meters) can be achieved using RF
communication, but this range is greatly influenced by building construction mate-
rials and contents, other radio systems operating in the vicinity at or near the same
operating frequency, and noise generated by nearby equipment. It is not unusual
to achieve four times the typical operating range in electrically quiet environment
or to achieve less than the typical operating range in an electrically noisy environ-
ment.
Note
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide a reasonable protection against
harmful interference when the equipment is operated in a commer-
cial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
Caution!
Changes or modifications not expressly approved by Emerson could void the
user's authority to operate the equipment.
There may be times when an RF communication between each sensor head and
the analyzer is not convenient. Moving or keeping the analyzer closer to the laser
heads can minimize this inconvenience.