The WirelessEZ Communication Interface (radio modem) is compatible with the the SiloPatrol® SE (SMU) "smart" cable-based sensor or Flexar guided wave radar level sensor. It can also be used for wire-replacement applications for equipment not manufactured by Monitor Technologies (consult factory for details). Communication between the sensors and an operator interface like the HMI2 control console or the SiloTrack inventory management software is accomplished via half-duplex (2-wire) RS-485 communication format. The WirelessEZ Communication Interface can be used to replace the RS-485 wiring between the sensors, the HMI2 or the PC. The WirelessEZ Communication Interface can be used to lower the cost of some installations and to overcome obstacles that make hardwiring impractical or impossible.
The WirelessEZ Communication Interface uses proven frequency-hopping spread-spectrum technology, operating in the 900MHz band, to communicate between two points. 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 available higher frequency bands.
The WirelessEZ Communication Interface has a durable powder-coated die cast aluminum housing and is provided with a mounting bracket that can be used for affixing to a flat surface or pipe / railing. Each transceiver includes RS-485 half-duplex (2-wire) interface.
With reliable and affordable technology, theWirelessEZ
Communication Interface can be used to lower the cost of
installation and to overcome obstacles that make hardwiring
impractical or impossible.
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Principle of Operation
The WirelessEZ Communication Interface uses proven frequency-hopping spread spectrum technology,
operating in the 900MHz band, to communicate between your PC running SiloTrack Server
software or HMI2 control console and
individual or groups of SiloPatrol® SE (SMU) "smart" sensors or Flexar guided wave radar 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.
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.
Communication Interface can be utilized in numerous applications, even with
multiple sensor networks and over 100 sensors. Each sensor network will require
a wireless modem/transceiver at the PC. A wireless modem/transceiver is also required at
the sensor(s) location. SMU and Flexar sensors need to reside on separate RS-485 networks.
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.
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.
Networks/Point-to-Point: One transceiver for each network
of sensors at the PC and one transceiver at each network
group of sensors.
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.
Communication Interface has a powder
coated die cast aluminum housing that
is 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.
A choice of antenna is provided
(standard or high gain).
Radio channels & communication / serial ports are pre-programmed at the factory based on your rquirements: >Select communication protocol: SMU, Flexar or customer-
specified >Select radio channel #: 1-10, Channel #1 is standard
85 to 265
VAC (±15%); 8VA; 50/60Hz
+150° F (-40° to +65° C)
Data Input Signal:
ft. (1,000 m)
(North America); 1W
(2) 0.88in (22.4mm) dia. holes
Green LED: Power
coated die cast aluminum,
wall or pipe/rail
Technologies LLC warrants each WirelessEZ 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.
Updated July 2014
Mass Flow Measurement Systems
The QuantiMass in-line mass flow sensor measures the flow of quantities in pneumatic conveying & free-falling processes. The sensor is based on the latest Microwave Doppler Effect technology and provides fast, in-line / on-line measuring without the use of weight scales.
The sturdy, non-intrusive design of the sensor minimizes maintenance. In addition, the compact size of the sensor makes for easy installation into existing processes. Suitable for powders, dust, pellets, and granular up to 0.75 inch (2cm).
Ultra Series-Includes controller
PRO Series-Includes transmitter
A practical application for the QuantiMass would be to monitor material flow rates to verify blending mixture ratios.
Principle of Operation:
The QuantiMass Mass Flow Measurement Sensor / Meter is designed with the latest microwave technology and is used to continuously quantify the flow of powders & solids being conveyed in metallic pipes. The QuantiMass is based on technology that has been developed and proven over several years. The measurement process of the sensor is centered on the Doppler effect. The mass flow-rate is determined by evaluating the frequency and amplitude changes during the measurement process. Particles at rest, such as deposits, do not influence the measurement. All powders, dust, pellets and granules can be measured reproducibly, up to the size of 0.75 inch (2cm). The QuantiMass sensor is suitable for continuous in-line / on-line measurements in pneumatic conveying or in free-fall pipelines.