The SiloPatrol® SE inventory
monitor "smart" sensors (Refer to Bulletin
343A) can be used in conjunction with the SiloTrack Inventory
Management PC-Based Software (Refer to Bulletin
343B). Communication between the Model SMU "smart" sensors
and the SiloTrack software
is accomplished via 2-wire RS-485 communication format. The SiloPatrol Wireless
Communication Interface can be used to replace the RS-485
wiring between the "smart" sensors and the PC.
With reliable and affordable technology, the SiloPatrol Wireless
Communication Interface can be used to lower the cost of
installation and to overcome obstacles that make hardwiring
impractical or impossible.
OPTIMIZED
RELIABILITY
The SiloPatrol® SE Wireless
Communication Interface uses proven frequency-hopping spread-spectrum technology,
operating in the 900MHz band, to communicate between your PC running SiloTrack Server
software and individual or groups of SiloPatrol "smart" sensors.
The 900MHz band is a FCC license-free band and offers greater transmission
distances, better signal transmission through obstructions and lower signal
loss than other possible frequency bands.
Frequency-hopping spread-spectrum
radio technology utilizes a band of frequencies between 900-928MHz and continuously "hops" or
switches frequencies during radio transmission enhancing reliability and minimizing
disruption of the telecommunications. The spread-spectrum enables a signal
to be transmitted across a frequency band that is much wider than the minimum
bandwidth required by the information signal. This reduces interference and allows for increased data communication.
FLEXIBILITY
The SiloPatrol Wireless
Communication Interface can be utilized in numerous applications, even with
multiple sensor networks and over 100 sensors. Each sensor network will require
a wireless transceiver at the PC. A wireless transceiver is also required at
the sensor location. Up to 16 sensors can be connected with one wireless transceiver
pair.
Single
Network/Point-to-Point: One transceiver
is located at the PC and one at a group of sensors
or at a single sensor. If used with a grouping of
sensors located in close proximity, the sensors would
be wired together with the transceiver.
Single
Network/Multiple-Point: One transceiver is located at
the PC and one transceiver at each of multiple groups
of sensors within a single network or one transceiver
at each sensor.
Multiple
Networks/Point-to-Point: One transceiver for each network
of sensors at the PC and one transceiver at each network
group of sensors.
Multiple
Networks/Multiple-Point: One transceiver is located
at the PC for each network and one transceiver at each
of multiple groups of sensors within each network or
one transceiver at each sensor within each network.
Model Selection
The SiloPatrol® Wireless
Communication Interface is enclosed in a NEMA 4 enclosure
suitable for indoor or outdoor mounting and is provided with
a mounting bracket that be used for mounting on a flat surface
or pipe/railing. Each transceiver includes both
RS-485 and RS-232 interfaces. A choice of antenna is provided
(standard or high gain) along with a choice of power supply
options.
Monitor
Technologies LLC warrants each SiloPatrol® Wireless
Interface it manufactures to be free from defects in material
and workmanship under normal use and service for two (2)
years from the date of purchase. The purchaser must notify
Monitor of any defects within the warranty period, return
the product intact, and prepay transportation charges. The
obligation of Monitor Technologies LLC under this warranty
is limited to repair or replacement at its factory. This
warranty does not apply to any product which is repaired
or altered outside of Monitor Technologies' factory, or which
has been subject to misuse, negligence, accident, incorrect
wiring by others, or improper installation. Monitor Technologies
LLC reserves the right to change the design and/or specifications
without prior notice.
343D.3.0406
Spotlight: Solids Flow Detection
Solids Flow Detection
Microwave solids flow detectors can
be used in a variety of applications including feed mills & grain processing,
consumer foods (cereal, sugar, cocoa, coffee), chemicals & pesticides
and more. For example, one company uses Monitor’s Model SFD-2
solids flow detector to verify the flow of feed pellets through their
various transport lines which involves a process where a horizontal
screw auger is conveying pellets over to a vertical gravity chute. The
chute then directs the pellets to a process down below. They have
carefully placed the SFD-2 so that it detects the pellets as they
fall directly across the sensor face. (See Below)
The Model SFI and SFD-2 line of solids flow detectors
from Monitor Technologies, LLC provide analog or relay outputs to
indicate the flow / no-flow condition of powder and bulk solids materials
in chutes and pneumatic conveying lines. Using microwave Doppler
radar technology these units are non-invasive plus extremely reliable
and rugged to withstand the rigors of the installation and your process
extremes. From automated systems with pneumatic lines to gravity
chutes, solids flow monitors can help to improve process performance.
They can assist in detecting flow problems, as well as, enhance the
level of automation at a facility like turning a conveyor on or off.
For more information on Solids
Flow Detectors
click here or contact Monitor Technologies LLC at 800-766-6486
in the USA and 630-365-9403 worldwide.