Monitor WirelessEZ Guide

WirelessEZ
Wireless Communication Interface
BUL L E T I N
344H
Standard Antenna Shown
I N S T A L L A T I O N & O E R A T I O N
®
Thank you for purchasing a quality product manufactured by Monitor
Technologies LLC. We realize that you do have a choice of vendors
when buying instrumentation and we sincerely appreciate you business!
This manual contains the information necessary to ensure a safe and
successful installation. Please read and comply with the section on
page 10 of this manual pertaining to SAF TY. Doing so will ensure prop-
er operation of the equipment and the safety of all personnel.
Before discarding shipping container or the internal packing materials,
please inspect the packaging thoroughly and verify that all parts are
accounted for. This product is shipped with the antenna, and mounting
plate (with its fasteners) detached from the WirelessEZ Communication
Interface (radio module).
In the event that information contained herein does not completely satisfy
your requirements or answer your questions, you may contact Technical
Support on our website at www.monitortech.com, by telephone at 800-
766-6486 (630-365-9403) or by e-mail at [e-mail].
If your WirelessEZ Communication Interface ever requires service either
in or out of warranty, please contact us and obtain an RMA number prior
to shipping the unit to us.

2
PRE - I NS ALL A ION C O NS I D ERA I O N S
Choosing a location: (See Figure 1)
1) Anticipated Range: Plan installation to stay within the
range of the antenna selected. Monitor's standard
antenna (small rubber duck style) can achieve dis-
tances of 5000 ft (1 mile) or greater in ideal conditions.
Longer transmission distances can be achieved with
higher performance antennas.
2) Idealizing Range: The 900MHz frequency band is
capable of propagating around obstacles. However,
optimum performance is achieved when antennas are
positioned in the line of sight of each other. Whenever
possible, select antenna locations that are elevated
and where the signal can travel without being impeded
by large steel obstacles (such as the steel buildings).
An example of an ideal installation is as follows: One
WirelessEZ Communication Interface (radio/antenna)
is on an office roof wired to the control system (i.e.
SiloTrack™ system or an HMI2operator interface) and
the second WirelessEZ Communication Interface
(radio/antenna) is on the top of the silo attached to a
safety railing wired to the sensors.
3) Cabling effects: Due to the modest transmission power
of the radio, it is preferable to keep the antenna as close
to the WirelessEZ Communication Interface (radio
module) as possible. Whenever possible mount the
antenna directly to the WirelessEZ (radio module) in a
vertical orientation. In some challenging applications,
it maybe necessary to install a higher performance
antenna that requires co-axial cabling between the
radio and the antenna. The co-axial cable introduces
loss into the system thereby negating some benefit of
the better antenna. In these applications, keep the
coaxial cable as short as possible. Monitor's standard
length is three feet long (perhaps just long enough to
reach past/through a metal barrier). It is always
preferable to use the hardwired medium (RS-485) to
span the distance from the control system/sensors to
the WirelessEZ Communication Interface (radio mod-
ule) than to use extended lengths of coaxial cable to
span the distance between the WirelessEZ (radio
module) and the antenna.
Both the SiloPatrol®SMUse “smart” sensor (Refer to
Bulletin 344A) and the RS-485 equipped Flexar®Guided
Wave Radar Sensor (Refer to Bulletin 354A) can be used
in conjunction with either the SiloTrack™ Inventory
Management PC-Based Software (Refer to Bulletin 344J)
or an HMI2Operator Interface Control System (refer to
Bulletin 344B). Communication between the sensors and
the SiloTrack software or HMI2is accomplished via a
2-wire RS-485 communication format. The WirelessEZ
Communication Interface can be used to replace the RS-
485 wiring between the sensors and the control system.
With reliable and affordable technology, the WirelessEZ
Communication Interface, in some cases, can be used to
lower the cost of installation and to overcome obstacles
that make hardwiring impractical or impossible.
Figure 1
RS-485
CABL
RS-485
CABL

3
MEC H ANI C AL I N S A L L A I O N
WirelessEZ Communication Interface (Radio Module)
Mounting:
1) Wall mount: A universal mounting plate supplied with
each WirelessEZ transceiver can be attached to the
back of the enclosure with the two screws provided.
Secure the plate to the wall using the holes in the
mounting plate that best suit the installation.
Do not modify the enclosure in any way as its
weatherproofing and the internal electronics may be
compromised. Instead, make any necessary
modifications to mounting plate.
2) Rail mounting: (See Figure 2 & 3) It is anticipated that
the WirelessEZ will be mounted to conduits or railings
located on the top of the silo.
The universal mounting plate supplied with each unit
can be attached to the back of the enclosure with the
two screws provided. Determine the piping diameter,
source suitable conduit clamps (not provided due to so
many possible sizes) then clamp the mounting plate to
the conduit/railing. Various hole patterns are provided
in the plate to permit optimum clamp sizing. Do not
modify the enclosure in any way as weatherproofing
and internal electronics may be compromised. Instead,
make any necessary modifications to mounting plate.
3) Cable entrance positioning: In outdoor applications,
mount the box with the conduit openings facing down-
wards. If installing with conduit, be sure to provide a
drip loop (i.e. a section of conduit that is more then 6"
lower then the box, with a means to disperse any accu-
mulated water in the conduit so that water does not
pour into the box). Likewise, if installing with cable and
the cord connectors provided, position a drip leg in the
cable (i.e. a portion of cable that is more then 6" lower
then the box so that water will tend to run down and
away from the box entries).
4) lacement with respect to standard rubber antenna:
When using the standard antenna (rubber ducky style)
attached to the top of the WirelessEZ enclosure, for
best performance mount the enclosure so that the
antenna IS NOT immediately adjacent to obstacles
( x. conduit, railings, etc.).
Antenna Mounting: (See Figure 4)
1) Direct attachment to WirelessEZ Communication
Interface: The standard antenna (rubber ducky style)
from Monitor has a fitting that attaches directly to the
top of the WirelessEZ tranceiver enclosure.
2) Attached through coaxial cable to WirelessEZ
Communication Interface: Higher performing anten-
nas (Monitor's extended range antenna or similar) must
be connected to the WirelessEZ transceiver (radio
module) enclosure with a coaxial cable. Since
the cable attenuation restricts the effective range of the
radio signals, it's recommended that the cable be kept
as short as possible. In these cases the antenna
should be mounted to a supporting structure using its
own mounting bracket. Then the cable can be
connected as a bridge between the antenna and the
connector located on the top of the enclosure.
The length of the antenna should NOT be immediately
adjacent to obstacles ( x. conduit, railings, etc.).
Figure 2
Figure 3
Figure 4

4
ELE C R I C AL I N S A L L A IO N
ermanently Connected Equipment:
Disconnecting devices shall be included in the system
installation. The disconnects shall be within close prox-
imity of the equipment, accessible to operators, and
marked appropriately as the disconnect for the associated
circuit. Assure the disconnect ratings are appropriately
sized for the circuit protected (See Specifications).
Circuit Separation:
Two cable entry locations are provided to aid in maintain-
ing separation of “hazardous live” (typically mains volt-
ages such as 115VAC and 230VAC) and limited circuits
(typically control voltages less than 30Vrms or 42.4VDC
such as the data communication signals). However, since
the WirelessEZ Communication Interface's single wiring
compartment can not absolutely protect against physical
contact between multiple circuits, it is required that all
wiring used must have an insulation rating of 300v mini-
mum, and a temperature rating of 176˚F (80˚C) minimum.
rotective Earthing:
ach WirelessEZ Communication Interface is provided
with a "protective conductor terminal" which shall be ter-
minated to the local earth ground potential. This terminal
shall be used to eliminate shock hazard in the unlikely
event of internal insulation breakdown. Select wire size
that can carry in excess of the sum of all circuit's maxi-
mum amperage.
EMI Optimizing: (See Figure 5)
Ferrite beads are provided for installation in the wiring to
minimize affects of MI. Wrap the large ferrite bead with
the incoming power wires (including protective earth con-
ductor) two to four full turns through the bead’s core.
Wrap small ferrite bead with incoming data wires(RS-485)
two to four full turns through the bead’s core. Position
each bead immediately inside the cable entrance of the
enclosure.
ower Input:
1) 85 to 265VAC Source: (See Figure 6) Verify the
intended voltage supply is compatible with the voltage
configuration indicated on the electronics and the
external nameplate. Standard mains supply voltage
(85VAC to 265VAC as ordered) can be connected to
the unit's H/L1 and N/L2 terminals.
Figure 5
Figure 6

5
Data Communications:
The WirelessEZ Communication Interface transmits and
receives data through an RS-485 communications BUS.
Before wiring, determine which data communication
wiring medium is to be tied to the Wireless
Communication Interface and proceed as follows (Refer
to Setup section for further explanation).
1) RS-485 Connection: (See Figure 9) The RS-485 pro-
tocol permits network interconnection of multiple
devices such as the control system (SiloTrack or
HMI2), sensors (SMUs or Flexar), Auxiliary Output
nclosures (AO s) and WirelessEZ Communication
Interfaces. Devices on this “network” are
interconnected in a daisy chain, multi-drop
configuration using a 2-conductor shielded cable
(such as Belden 9322 or Alpha 6302). The order of
connection is not important (i.e.the WirelessEZ
Communication Interface can be connected between
SMUs if necessary). The WirelessEZ Communication
Interface creates a “wireless link” that replaces a
section of the RS-485 wiring.
This break in the wiring results in two wired circuits:
a) The wired circuit connecting the control system
(SiloTrack or HMI2) and the WirelessEZ
Communication Interface,
b) The wired circuit connecting the second WirelessEZ
Communication Interface and the sensors
in the field.
ach wired circuit operates most effectively when the
interconnection has only two ends. “T”s should be
avoided whenever possible. Observe polarity when
making the communication interconnection (D+ and
D-). Attach the cable shield to the "SHD".
Refer to Installation and Operation Bulletin #344J for
connection to the USB serial adapter when SiloTrack is
the operator interface.

6
Figure 9

SE UP
Initial Setup: (Setup selections required before use)
1) Radio channel: The WirelessEZ has Tx channels that
are programmed at the factory, 1-10. For simplicity, it is
typical to match the radio channel to the network
number (1-10 SiloTrack,1-2 HMI2). Channel 1 is the
standard channel. Channels other than 1 have to
be specified at the time of ordering. In applications with
greater than 16 sensors, multiple networks are needed.
When multiple networks are required and WirelessEZ
Communication Interfaces are used, different radio
channels are needed for each network to assure data
from one control system network does not collide with
data from a different control system network. SiloPatrol
SMU or SMUse sensors may NOT reside on the same
network as Flexar®Guided Wave Radar Sensors in
installations using SiloTrackTM as the control system. It is
permissible for SiloPatrol SMU’s to coexist on the same
network if the HMI2is used as the control system.
(Note: For clarity and convenience, when using a
SiloTrack system or an HMI2, it may be desirable to
match the radio channel with the network number. This
should not be confused with the SMU or Flexar sensor
address.)
2) rotocol: The is WirelessEZ capable of operating with
many different serial protocols. The standard protocols
available are intended for SMU and Flexar sensors,
programmed at the factory. Other serial protocols are
available and must be specified when ordering.
Options are:
BAUD Rate: 1200, 2400, 4800, 9600 or 19,200
BITS: 7 or 8
PARITY: None, ven or Odd
STOP BITS: 1 or 2
3) BIAS Selector: Because the RS-485 system is half
duplex (signals alternately travel both directions on
the same set of wires), some systems will require the
application of a BIAS on the wires...some
manufacturers will refer to this as Pull-up or Pull-down
resistors. Typically a BIAS is applied only at the
master device (controller). Just like termination loads,
you DO NOT want the BIAS of too many devices on a
RS-485 network “ON” or the system may get
overloaded. If a WirelessEZ is connected to an island
of remote sensors, the WirelessEZ is considered the
master of the RS-485 network because requests are
coming onto the RS-485 network from the
WirelessEZ. In this example, turn the only BIAS of the
WirelessEZ on.
4) RS-485 load: (See Figure 9) This selection is used
to terminate the RS-485 link to achieve maximum
communication reliability. If no RS-485 communica-
tions is to be used, simply turn “OFF” this selection.
If there is to be RS485 communications, then you must
determine if the WirelessEZ Communication Interface
is physically on the end of the RS-485 wiring circuit.
If so, then the load selector should be turned “ON”. If the
WirelessEZ Communication Interface is not at the end
of the wiring circuit (i.e. two wire pairs branch off in two
different directions) then this selector should be turned
“OFF”. This evaluation should be conducted for every
device on the RS-485 network.
5) SiloTrack Timeout: When using the WirelessEZ
Communciation module with SiloTrack, Inventory
Monitoring Software,the SiloTrack “Timeout” must be
set for 200ms. Time out is defined as the amount of
time between each sensor query by SiloTrack. The
default for SiloTrack is 100ms. To accommodate the
time required for the “radio link”, change registry setting
to 200ms as follows on Windows-based PCs:
For Current Windows Supported Operating Systems
a) Press the Windows button and “R” key
simultaneously to open RUN window
b) Type in regedit then click OK,
Click on: Computer gHK Y_LOCAL_MACHIN
gSoftware gWow6432Node gMonitor
Technologies gSTComDriver gCommunication.
When you click on “Communication” a
list will open up on the screen adjacent to the
registry directory tree. Double click on the
Timeout entry. nter Value Data to 200 and select
Decimal.
c) OK
d) Close registry window
e) Restart PC.
Indicators: (See Figure 10)
(Three provided for reporting status)
1) ower: The green POW R indicator will light
when power is applied to the unit.
2) Tx: The Orange Tx (Transmit Data) light strobes when
the WirelessEZ Communication Interface is transmit-
ting data to the other side of the wireless bridge.
3) Rx: The Yellow Rx (Receive Data) light will strobe when
the WirelessEZ Communication Interface receives data
from the other side of the wireless bridge.
LED Bar Graph-Received Signal Strength: (See Figure 10)
There is a three L D signal strength “Bar Graph” located
on the left side of the PCB next to the RF Module. The bar
graph only works when the unit receives data from the
other WirelessEZ Communication Interface. This will
occur when properly connected to a control device, such
as the HMI2or SiloTrack PC Software, and will be accom-
panied by activity on the Rx indicator (Yellow).
The stronger the received signal, the more L D bars that
will illuminate.
Figure 10
7
(Tx)
(Rx)

8
reventive Maintenance:
The WirelessEZ Communication Interface is virtually
maintenance free. In typical applications, once the appa-
ratus is properly setup, it will operate without any further
attention. The electronics are housed in a weatherproof
enclosure. In addition the PCBs are conformal coated
with a silicone-based material to further prevent electrical
influence by condensation. The electronics should peri-
odically be observed for any signs of contamination
caused by improper enclosure protection (i.e. insure cover
is fully engaged, and that wire entries are properly
sealed.)
Cleaning Requirements:
In the event that the antenna is fouled by external contam-
ination, reliable communication of the RF wireless signal
may be degraded. In these cases, clean antenna with a
soft damp towel.
M AI N E N A NC E
Fuse Replacement:
The fuse incorporated into the WirelessEZ
Communication Interface PCB is not intended for operator
replacement. A qualified technician can replace the appli-
cable fuse according to the following specifications.
If necessary, consult the factory for additional technical
assistance or for return of the WirelessEZ Communication
Interface.
F1: Fuse, TR5-FAST, 315mA, 250V, SLO
Monitor Part #: 4722-0014
Figure 11

9
ROBLEM: SiloTrack™ or HMI2occasionally displays
a “COM error” for a specific vessel
CAUSE/SOLUTION:
1) This error is caused by the inability of the Control
System (ex. SiloTrack or HMI2) to continuously
receive a return response from a sensor. Brief
dropouts of communication can be expected in
wireless radio links, especially during
periods of severe weather. If dropouts are unac-
ceptable, see alternate suggestions below.
2) Check the signal strength.
3) Confirm that there are no other WirelessEZ
Communication Interfaces on the control side of
the “wireless link” set to the same radio channel.
4) Verify proper termination of the RS-485 wiring.
5) Consider altering radio installation positions for
best line-of-sight, highest elevation, and no
obstructions (especially metallic).
6) Consider installing a higher performance antenna.
ROBLEM: SiloTrack or HMI2continuously displays a
“COM error” for a specific vessel
CAUSE/SOLUTION:
1) This error is caused by the inability of the Control
System (ex. SiloTrack or HMI2) to ever receive a
return response from a particular sensor. This can
be caused by a variety of issues, many not related
to the WirelessEZ Communication Interface.
2) Verify the sensor's address corresponds to
the SiloTrack or HMI2node (channel) number.
3) Verify that each sensor on any given network has a
unique sensor address selection.
4) Verify electrical power is connected to the sensor.
5) Verify polarity of the RS-485 wiring.
6) Verify proper termination of the RS-485 wiring.
7) If using SiloTrack as the Control System, verify that
the SiloTrack TIM OUT is set for 200ms.
8) Verify that SMU software is revision V1.01 or
greater.
9) Proceed to the following PROBL M/SOLUTIONS
pertaining to the WirelessEZ Communication
Interface. Continue to proceed down the items
until problem is solved. Some may not apply.
ROBLEM: The green power LED does not light
CAUSE/SOLUTION:
1) This error is caused by the lack of power connect-
ed to the WirelessEZ Communication Interface.
2) Verify electrical power is connected, that it is the
proper voltage as indicated on the nameplate, and
that the magnitude is within the specified limits.
3) Verify status of fuse F1. If blown, examine the con-
nections and environment in an attempt to deter-
mine why fuse blew before replacing.
ROBLEM: The “Tx” LED is not strobing
CAUSE/SOLUTION:
1) This error is caused by the WirelessEZ
Communication Interface not receiving the
commands from the control system.
Identify if the WirelessEZ Communication Interface
R O U BLE S H OO I N G
in question is on the control side or sensor side of
the “wireless link”. Then:
Control side of “wireless link”:
2) Verify electrical connection and polarity between
SiloTrack and WirelessEZ Communication Interface.
Sensor side of “wireless link”:
3) Verify that the WirelessEZ Communication
Interface on control side of “wireless bridged link”
is indicating “query” by a strobing L D labeled as
“Tx”. If not, check steps 2-4 above then continue.
4) Verify that the radio channel & protocol selections
made on the two WirelessEZ Communication
Interfaces forming the “wireless link” are on the
same channel number. The channel number is
printed on the product label. If working with multiple
channels it is imperative that covers remain with
the actual radio it came with.
5) Verify performance of the “wireless link” by
examining the three L D signal strength “Bar
Graph” located on the left side of the PCB next to
the RF Module. The bar graph only works when the
unit receives data from the other WirelessEZ
Communication Interface and three illuminated
led’s indicates stronger received signal than one or
two. It is possible that the radio installation position
and/or the antenna performance are insufficient to
successfully achieve a wireless link. See above
regarding “occasional” COM error.
ROBLEM: The reply LED labeled as “Rx” is not
strobing
CAUSE/SOLUTION:
1) This error is caused by the WirelessEZ
Communication Interface not receiving data from
the other end of the wireless bridge.
2) Verify electrical connection and polarity between
the WirelessEZ Communication Interface and the
sensors.

Monitor Technologies LLC
44W320 Keslinger Rd.
t
Elburn, IL 60119
t
630-365-9403
t
800-766-6486
t
Fax: [phone]
t
www.monitortech.com
BULLETIN
344H
S A FE Y
Monitor Technologies LLC warrants each WirelessEZ
Communications 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 pur-
chaser 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.
WA R R AN Y
Power Requirements: 85 to 265 VAC (±15%); 8VA;
50/60Hz
Ambient Operating Temp: -40° to +150° F (-40° to +65° C)
Data Input Signal: RS-485 half-duplex, isolated
Wiring Distance: 3,279 ft. (1,000m)
Radio Output: 900MHz (North America); 1W
Radio Sensitivity: -110dBm
Conduit ntry: Two 0.88in (22.4mm) dia. holes
Indicators: Orange L D: Tx
Yellow L D: Rx
Green L D: Power
Housing: Powder coated die cast aluminum,
IP66
Mounting: Wall or pipe/rail
CHINA RoHS 2
SPE CI FIC A I O NS
M EC H A NI C A L S
WirelessEZ Communication Interface
Left: Standard Antenna
Center: High GainAntenna
Right: Yagi Antenna
DIMENSIONS ARE SHOWN IN INCHES WITH MILLIMETER EQUIVALENT IN BRACKETS
General Safety:
CAUTION! It is essential that all instructions in this man-
ual be followed to ensure proper operation of the equip-
ment and safety of operating personnel. The use of this
symbol is used throughout manual to highlight important
safety issues. Please pay particular attention to these
items.
Electrical Shock Caution:
Certain WirelessEZ Communication Interfaces are pow-
ered with HIGH VOLTAG . No operator serviceable parts
are inside. All servicing is to be performed by qualified
personnel. ach WirelessEZ Communication Interface is
provided with a “protective conductor terminal” which shall
be terminated to earth ground potential (See lectrical
Installation). This product's design complies with
N61010-1 overvoltage category II and pollution degree
2. When installing certain high performance antennas, it
is critically important that the antenna not come in contact
with overhead power lines. Doing such may put operators
at risk of electrical shock that may be harmful or fatal.
Electromagnetic Compatibility (EMC):
The WirelessEZ Communications Interface contains
transmitter module FCC ID: OUR-9XT ND. This enclosed
device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions.
1. This device may not cause harmful interference
2. This device must accept any interference received,
including interference that may cause undesired
operation.
GDR JSC MAY 19 2017 DOC-001-344H 4