Monitor Technologies DustAlarm ES Guide

BUL L E T I N
764A
I N S T A L L A T I O N & O P E R A T I O N
D u s t A l a r m ®E S
Thank you for purchasing a quality product manufactured by Monitor
Technologies LL . We realize that you do have a choice of vendors
when procuring broken bag detectors and we sincerely appreciate your
business!
This manual contains the information necessary to ensure a safe and
successful installation. Please read and comply with the section on the
back of this manual pertaining to SAFETY. Doing so will ensure proper
operation of the equipment and the safety of all personnel.
Before discarding shipping container, please inspect it thoroughly and
verify that all parts ordered are accounted for. Sometimes smaller parts
become stuck under carton flaps and other packaging materials.
In the event that information contained herein does not completely
satisfy your requirements or answer your questions, you may contact
Technical Support on our at website www.monitortech.com,
by telephone at 1-800-766-6486 (1-630-365-9403), or by e-mail at
[email protected]. If your DustAlarm®ES ever requires
service either in or out of warranty, please contact us and obtain an RMA
number prior to shipping the unit to us.
DustAlarm®ES Broken Bag Detector
®
www.monitortech.com

2
The DustAlarm® ES broken bag detector provides reliable and
economical detection of leaks and filter failures in many powder
and bulk solids industries. The DustAlarm®ES is successfully
utilized in a wide variety of applications where monitoring &
detection of dust levels is critical to safety, maintenance, equip-
ment operation, plant efficiency and/or the environment. Utilizing
proven technology, the DustAlarm®ES measures the triboelec-
tric effect to determine when particle emissions exceed accept-
able levels. Triboelectric measurement, characterized by simplic-
ity of setup and installation along with over 20 years of technical
refinement, has resulted in superb application reliability.
The DustAlarm®ES detector provides visual indications and dual
relay outputs to maximize its user-friendliness and automation
capabilities. Multi-colored signal LED’s provide for current status
indication. LED’s are also provided to indicate the relay state
which are visible when the housing cover is removed. A base line
reference is measured by activating a single switch closure to
start a sampling process of the air stream. Two thresholds are
automatically set at 5x & 20x above the base line reference. The
relay outputs can be used to activate an alarm device or can be
integrated into a control system to enhance the overall operation
of the dust collector.
PRIN C I P L E OF O P E R A ION
Triboelectric technology has been used for dust trend monitoring
for many years and is an accepted technology by the US EPA for
dust particle emission detection (40 FR Sec 63.1350).
The Triboelectric effect is based on particles interacting with an
electrically isolated sensing probe. When moving particles
impact, or even pass in close proximity to the probe a very small
electrical charge is transfered from the particulate to the probe.
This electrical signal is then processed by the DustAlarm®ES via
a series of algorithms. The signal processing filters out other
electrical charges, or electrical ‘noise’, which is not representa-
tive of the moving particles. These proprietary algorithms effec-
tively differentiate undesirable signals from the desirable signals
resulting in reliable particle emissions detection.
The DustAlarm®ES is designed to detect a change in the con-
centration of dust within the exhaust air stream of a dust collec-
tion system. Signal output is varied as the measured dust
changes. When the signal generated by moving dust particles
exceeds a preset threshold an alarm output is generated.
Influence of Particle aterial -
The signals transmitted by different types of dust particles can
vary greatly from one material to another For example:
- Inorganic electro-conductive materials (metals) create the lowest
signals.
- Inorganic dielectric materials (cement, minerals) generate
average signals.
- Organic dielectric materials (wood, flour) generate the highest signals.
This means that at the same concentration, different types of
dust generate different output signals.
Particle Size -
Dust is defined as particles smaller than 425μm.
The minimum particle size which the DustAlarm®ES is able to
detect is 0.3μm. The best working range of the DustAlarm®ES
is between 1 and 200μm.
Linearity, aximum Concentrations and Calibration -
The measuring range and behavior of the DustAlarm®ES
depends on many factors, such as the dust material (as
explained in the “Influence of Particle Material” section), particle
size, flow velocity and installation location.
As an indication and averaging of different internal and external
tests, Monitor Technologies’ sensors with inductive electrification
technology show the following behavior over the measuring range:
- Detection limit: 0.1mg/m3
- Linear phase: from detection limit up to 50-200 mg/m3
- Nonlinear phase: from linear phase up to 1000-3000 mg/m3
- Saturation phase: after nonlinear phase
Influence of Flow Velocity at the DustAlarm®ES -
As an indication and averaging of different internal and external
tests, Monitor Technologies’ sensors with inductive electrification
technology illustrates the Influence of Flow Velocity as follows:
The flow behavior may vary due to the dust material, particle
size, temperature and installation location.
The recommended minimum flow velocity is 3m/s.
Maximum tested flow velocity is 40m/s.
Influence of Relative Humidity RH %, Condensation and
Droplets in the easurement of Gas -
Due to the working principle of the DustAlarm®ES, the amount of
relative humidity has no effect on gas measurement unless there is
condensation.
Should there be condensate in the gas, these droplets will be
regarded as dust particles and distort the measurement signal.
No signal or a wrong signal (probably too high) will be the conse-
quence.
Figure A
Illustration of Uncalibrated Measuring Behavior
Figure B
Influence of Flow Velocity
Uncalibrated behavior over the measuring range

3
PRE - I N S ALL A ION CONS I D E R A I O NS
Figure 1
Figure 2
DI ENSIONS ARE SHOWN IN INCHES WITH ILLI ETER EQUIVALENT IN BRACKETS
It is best to mount the DustAlarm®ES on metallic ducting.
Mounting on non-metallic duct may be possible but will have lim-
itations – see Mechanical Installation section. Mounting will be
accomplished utilizing a Tri- lamp style quick disconnect clamp.
Two mounting kits are available to choose from as accessory
items; 1” Tri- lamp ferrule kit or ¾” NPT kit. When selecting a
mounting location please give consideration to the following:
1) Accessibility - The mounting location should be accessible
for maintenance and the controls should be visible to the
installer/operator when the cover is removed.
Probe Length:
Sensitivity of the DustAlarm®ES is not greatly influenced by probe
length. (Doubling the probe length will only result in sensitivity
increase of a few percent.) However, if the probe length is short in
comparison to the inside diameter of the duct performance can suffer.
It is recommended to establish a probe length that is 1/3 to 2/3 the
diameter (or span) of the duct. Example: Exhaust duct with 12 inch
I.D. (305mm), correlates to a probe length of 4 to 8 inches (102 to
204mm).
Choosing a Location:
The DustAlarm®ES must be mounted downstream of the dust col-
lector equipment. The best location is in a section of the ducting
where there is laminar-flow and the dust particles are evenly dis-
persed within the air stream. This ensures the sensor probe is
exposed to a particle stream in an area where the most stable airflow
condition exists. Such an area has no airflow disturbance caused by
elbows, duct size transitions, diverter valves, etc. In the event there
are such flow disturbances near the selected mounting area ensure
the DustAlarm®ES is no closer than three to five times the duct
diameter upstream or downstream of a disturbance. (See Figure 2).
In some applications it may not be physically possible to follow these
guidelines and a compromise must be made. In such applications the
fundamentals of operation must be kept in mind: The sensing probe
must be exposed to particulate which is as evenly dispersed within
the air stream as possible. Ensure the DustAlarm®ES is located
where the sensing probe will be exposed to flowing dust particles -
not “dead” air.
[82.6] [10.1]
[38.1]
Figure C
Influence of Ambient Temperature
Special Dusts -
Monitor Technologies’ sensors with inductive electrification tech-
nology perform effectively with the majority of dust materials; An
exception is heavy metal-coated dusts where the behavior is
known to be challenging. For measuring such dusts, contact
Monitor Technologies for application assistance.
Influence of Ambient Temperature -
As an indication and averaging of different internal and external
tests, Monitor Technologies’ sensors with inductive electrification
technology show very low Influence of Ambient Temperature:
Ef

4
Non- etallic Ducts:
If the DustAlarm®ES is to be mounted in a non-metallic pipe or
duct, the following special precautions must be taken to prevent
the detection of stray electric fields:
1) Light Dusting - If the unit is to be installed after a dust col-
lector where only a light dust loading is present, an electro-
static (Faraday) shield must surround the pipe or duct for
a distance equal to three times the duct diameter both up
and down stream. The shield must make contact with the
external ground screw on the DustAlarm®ES and a reliable
earth ground. Hardware cloth, screen material or rabbit
wire are satisfactory shield material.
2) Heavy Dusting - If a heavy dust loading is present, the unit
must be installed in a section of metallic pipe or duct. This
section should extend as far up stream as possible or down
stream for a distance equal to two times the duct diameter
and must be connected to a reliable earth ground.
NOTE: The DustAlarm® ES mounting must be provided with
ELEC RI C A L I N S A L L A I O N
1) Hazardous Location Precautions - Observe the regulations
listed in the NE (USA) or E ( anada) and all others with site juris-
diction regarding equipment in hazardous locations when installing the
hazardous location models of the DustAlarm®ES sensor in hazardous
classified locations. Wiring and all installation methods must be per-
formed according to the authority having site jurisdiction and is the sole
responsibility of the installer to ensure such.
Haz-Loc Versions: External circuits connected to RELAY-1 & RELAY-2
terminals shall be provided with fuses conforming to the IE 60127 series and
UL 248 series. Fuses shall be rated for 5A max, 250VA or 30VD .
Ensure power is disconnected from the sensor, or the area has
been cleared of hazardous conditions before the cover is removed. A
locking mechanism on the back of the enclosure is provided to prevent
removal of the cover without the use of a tool.
Electrostatic charges:
The equipment shall not be installed in a location where the external condi-
tions are conducive to the build-up of electrostatic charges.
lAvoid all materials which could be capable of generating electrostatic
charges at the installation location
lThe equipment shall only be cleaned with a damp cloth and allowed to dry
lMake sure that the equipment is properly connected to a stable ground
potential either at the external or internal grounding connection
It is important to note that the hazardous location models are
certified with two protection concepts: The probes and wires from the
probes to the sensing electronics board within the enclosure are an
intrinsically safe circuit. The enclosure and main electronics within are
not intrinsically-safe; Therefore, protection is by dust-ignition proof
enclosure. One conduit entry is provided with a metallic plug, factory
installed. This plug (blanking element) cannot be substituted or
replaced with other than that acquired from the factory.
onduit fittings must be rated IP64 minimum for hazardous locations-only.
2) Factory Wiring - The probe wires internal to the housing are connected
to the front side of the P B. DO NOT alter this connection. Doing so will
likely cause improper operation or permanent damage to the device.
3) Permanently Connected Equipment - Disconnecting devices shall
be included in the system installation. In installations where multiple cir-
cuits are used (i.e. independent circuits for power input and relay out-
put), individual disconnects are required. The disconnects shall be with-
in close proximity of the equipment, accessible to operators, and marked
appropriately as the disconnect for the associated circuit. Ensure the
disconnect ratings are appropriately sized to the circuit protected (See
Specifications). The MAINS power that connects to the sensor MUST
provide circuit protection and NOT exceed 20A total.
4) Disconnects Separation - It is recommended to span from
the disconnects to the sensor with a long enough section of
flexible conduit that will allow the probe to be removed from
ducting for easy inspection and cleaning.
5) Circuit Separation - Two cable/conduit entry locations are
provided to aid in maintaining separation of “hazardous live”
(typical mains voltages such as 115VA or 230VA ) and limited cir-
cuits (typically control voltages less than 30Vrms or 42.5VD ). It is
required that all wiring used must have an insulation rating of 300v
minimum, and a temperature rating of 221˚F (105˚ ) minimum.
2) Vibration - The unit is designed for use in conjunction with
baghouse and dust collector systems. As such it is provided
with a rugged cast aluminum enclosure. However, care
should be taken to protect the unit from excessive vibration,
which can cause physical damage to the electrical circuit
boards and connections.
3) Temperature Limits - The operational temperature limits must
be maintained to ensure reliable operation (See Specifications).
Enclosure surface temperature is dependent on the process
temperature. At a process temp of 200o and the enclosure
housing & the electronics outside of the process, the maximum
enclosure surface temp "T" rating of 85o applies.
4) Other Location Considerations - The location should be a
sufficient distance from the stack exit so that outside atmospheric
conditions will not affect the sensor. For example, heavy rain may
cause a false signal if the sensor is located in a vertical stack.
MECH A N I C AL IN S AL L A I O N
The DustAlarm®ES mounts to a tri-clamp quick-disconnect fer-
rule (also available from Monitor Technologies) that has to be
installed into the air duct for easy installation and maintenance of
the sensor. The ferrule is typically welded to the duct. Be sure to
remove the gasket and clamp from the ferrule before welding.
Also before welding, ensure that when the DustAlarm®ES sensor
is installed such that the probe insulator protrudes into the duct at
least 0.75” [19mm] and is exposed to airflow. (See Figure 3).
WR'
'
'
&/$03(',13/$&(
72'8&7
,172$,5)/2:
:,7+*$6.(7
)(558/(:(/'('
352%(
,168/$725352758',1*
$&7,9(
'8&7:$//
02817,1*48,&.',6&211(&7&/$03
Figure 3
a local earth ground, either through the duct-work and
DustAlarm®ESmounting or by a separate means connected
to the mounting. The safety (protective earth) ground is
provided through the electrical power supply connection.
Test Port:
For negative pressure systems, to aid in troubleshooting, it is recommend-
ed that a test port be installed upstream from the sensor as a means to
inject sample dust material. The port’s distance from the sensor should be
approximately equal to two times the duct diameter and on the same side
of the duct. A plugged half coupling is sufficient.
Failure to correctly install the DustAlarm®ES may prevent the unit from
operating reliably; therefore, any modifications to these procedures
should be discussed with the factory.
DI ENSIONS ARE SHOWN IN INCHES WITH ILLI ETER EQUIVALENT IN BRACKETS
(Suggested Min. 0.75” [19mm])
(Recommended)

5





//1 1&&2012
9DF
5 /$<
9GF
5 /$<
1&&2012 '&'&
$8726 783
$%9
56
5/$<

5/$<

////
,62/$7 '
/2$'
/,1 6
,62/$7 '
/2$'
/,1 6
//1
0$,1632:
9$&
9GF
32: 5
1232/$5,7<
:,5,1*',$*5$0
WR56
0$67 5
' 9,&
 
Figure 4
6) Protective Earthing - Each DustAlarm®ES
monitor is provided with a "protective conductor terminal"
which shall be terminated to the local earth ground potential
to eliminate shock hazard. Select wire size that can carry in excess of
the sum of all circuit's maximum amperage. Because the intrinsically
safe sensor probe does not pass a 500V dielectric withstand test to
earthing terminal, this probe shall be considered as electrically con-
nected to the enclosure.
7) Access to Terminal Connections (See Figure 4) - Loosen
the cover lock screw and slide the lock mechanism down towards the
mounting point; tighten the screw to prevent parts from dislodging.
Remove the screw-on cover of the DustAlarm®ES and set it aside.
ustomer accessible connections are for power and relay outputs. All
DustAlarm®ES sensors come from the factory compatible for MAINS
VA or low voltage D operation.
8) Power Input - Verify the intended voltage supply is compatible with
the voltage configuration indicated on the external nameplate. The
sensor can be powered with A MAINS OR 24 VD on separate
blocks. onnect the power wiring as shown in Figure 4. The customer
supplied power cable must have a minimum conductor size of 1mm2
(18 awg). Additionally, the customer is responsible for installing a main
power disconnect as mentioned above.
lMinimum 80 field wiring shall be used.
lHaz-Loc Versions: A Mains Supply...A input power terminals shall
be protected by a fuse value no greater than 85mA.
lHaz-Loc Versions: D Supply...D input power terminals shall be
protected by a fuse value no greater than 250mA.
9) Relay Output Contacts - The DustAlarm® ES relay contacts are
power failsafe, meaning that the relays will be in the same state in a
power failure as they would be in an alarm state. The SPDT (form )
relay contacts are electrically isolated from all other parts of the sen-
sor. The relay terminal blocks are labeled true to the relay contacts,
N/ - OM is active when relay is relaxed, and N/O- OM when relay is
powered. onnect relay contact wiring as shown in Figure 4.
lMinimum 80 field wiring shall be used.
lRelay contact terminals shall be protected by a fuse value
no greater than 5A.
10) RS-485 Terminal - The RS-485 output is an isolated digital signal
output that can be used to monitor the active signal being measured,
and the general status of the sensor. This digital connection can be
daisy chained to multiple sensors on the same RS-485 network to
minimize the amount of wiring. Protocol used on this network is
Modbus RTU.
The RS-485 network cabling should be a single route that travels from
device to device, with no branches that form T’s or stars. A network
termination should be activated on any device that is at the physical
end of an RS-485 network. For the dust sensor models, this is
accomplished by:
ACTIVE: termination jumper present (ends of RS-485 network)
DEACTIVATED: termination jumper removed (all devices in the middle
of RS-485 network)
If the PL /master device happens to be at the end of the network,
then a termination selector should be activated within that device.
See the Set-Up & onfiguration section for guidance of the
calibration and configuration process.
11) USB PORT - A USB mini-B connector is provided to allow easy and
fast connection of the sensor to a portable P with the DustConfigTM
application loaded onto it for sensor configuration. See bulletin # 764 to
navigate the DustConfigTM application.
NOTE: The sensor USB connector is NOT isolated from local
earth ground; the USB connection is intended for local, temporary
connection during the configuration process only.
12) Re-assembly - Replace the enclosure cover and secure cover
lock to protect the electronics from damage or contamination, unless
you are ready to proceed with setup of the DustAlarm®ES sensor at
this time.
$8726(7836:,7&+
86%PLQL%
56
02'%86
7(50,1$/
5(/$<
,1',&$7256
6(16(
67$786
,1',&$7256
561(7:25.
7(50,1$7,21
35(6(17DF LYH
5(029('QR DF LYH
6(1625&21752/6,1',&$7256
& 





//1 1&&2012
9DF
5(/$<
9GF
5(/$<
1&&2012 '&'&
$8726(783
$%9
56
5(/$<
5(/$<
SE - UP A N D C O N F IGU R A I O N
Remove the enclosure cover of the DustAlarm®ES unit and note the
controls and indicators on the label covering the top board assembly
(See Figure 5). The following is a brief description of each:
Indicators:
1) GREEN LED - The green LED indicates power is applied to
the sensor, and there is no alarm status. Also, when the green
LED is flashing the auto setup process is under way.
2) RED LED - The red LED indicates an alarm condition. If the
red LED is on constant, the first threshold has been
exceeded. If the red LED is flashing, the second threshold has
been exceeded.
3) YELLOW LED’s - The yellow LED’s indicate the state of the
relay it is adjacent too. When a yellow LED is lit, the
respective relay is powered. When the LED is off, the relay
is in a relaxed state.
RS-485 - The serial communication parameters in the sensor
must be configured to match the master device on the RS-485
network before the Modbus output will function:
Figure 5
Parameter Factory Default
Baud Rate: 38.4K
Parity: NO
# Stop Bits: 2
Device #: 255
(aka: Modbus slave ID
or address #)
More details
on the next
page >>>

M EC H AN I C A L S
DI ENSIONS ARE SHOWN IN INCHES WITH ILLI ETER EQUIVALENT IN BRACKETS
$'$3725
75,&/$03
72137



48,&.',6&211(&7
&/$03
,7(06%(/2:$5(237,21$/
,1.,7)250$6(,7+(5)(558/(
2575,&/$0372137$'$37257<3(
137
0$;

 
> @

>@



>  @


&6/

> @
 
34$ġ5.,%33ġ30%#)&)%$
88ġ;88LL=
9,721*$6.(7
$)'$86'$
)(558/(
:(/'72'8&7 




6
RO U B L E SHO O I N G
SY PTO : No LED illuminated.
SOLUTION:
1) heck voltage between L1 and N terminals if MAINS powered.
2) heck voltage at 24 VD terminals if low voltage powered.
3) Ensure this voltage is within the voltage requirement on
the specification section.
SY PTO : Unresponsive to changing dust conditions.
SOLUTION:
1) DustAlarm®ES not yet calibrated. See Set-Up and
alibration section
2) Sensing probe insulated by dust residue which has
collected onto probe. Remove sensor and clean probe.
3) Poor location. Ensure sensing probe is not installed in
area where probe is exposed only to dead, stagnate air.
SY PTO : onstant red LED activity.
SOLUTION:
1) Moisture condensed onto sensing probe. Remove and
clean moisture from probe.
2) Sensing probe touching ducting. Remount / relocate
sensor to prevent probe contact with ducting internals.
SY PTO : Alternating flashing Red and Green LEDs indicat-
ing a fault, electrical short on probe.
SOLUTION:
1) Ensure probe is isolated, not touching metallic structure.
2) Wipe probe clean of any residue with a damp rag and
ensure the probe is dry prior to resuming operation.
It is especially important to clean the plastic insulator
portion of the probe.
See bulletin # 764 to navigate the DustConfigTM application to
configure these parameters.
To perform this function, connect a portable P with the DustConfig
application loaded onto it to the sensor’s USB mini-B connector. See
bulletin # 764 to navigate the DustConfigTM application.
NOTE: The sensor USB connector is NOT isolated from local
earth ground; the USB connection is intended for local, tempo-
rary connection during the configuration process only.
Calibration:
1) Ensure that power and relay contacts are properly connected
2) Ensure normal or acceptable level of dust particle emissions
are passing through the exhaust ducting (i.e bag filters are in
good condition).
3) Disable filter cleaning systems (such as pulse jets, shakers,
etc.) as these devices will cause a temporary increase in
airborne dust particulates as these devices are activated.
4) Press the Auto Set-up switch. This will start the process of
measuring the dust in the air stream to be used as a reference
value. This process will take approximately 16 minutes, and is
indicated by a flashing green LED. Ensure no unusual events
occur that could provide for false measurements during this
auto setup period. At the end of the of the period the green
LED will become constantly lit.
5) Using the Auto Set-up method will automatically configure these
parameters:
Running average of measured signal: 100 sec time constant default
Alarm-1 threshold: 5x measured value from Auto Set-up default
Alarm-2 threshold: 20x measured value from Auto Set-up default
Alarm delay, hold on: 30 sec default
Alarm delay, hold off: 30 sec default
6) The parameters above have proven to suffice for the majority of
the installations. However, these values can be further refined by
using the DustConfigTM P application. See bulletin # 764 to
navigate the DustConfigTM application to adjust these parameters.
7) An experienced programmer can also adjust the sensor
parameters through the RS-485/Modbus interface.
See bulletin # 764B for the Modbus register map that defines
the register parameter locations.
Routine aintenance Program:
A routine maintenance program should be established for the
DustAlarm®ES monitor using the following guidelines:
1) The electronics should be re-calibrated once a year by
following the alibration Auto Set-up Procedure.
2) The sensor probe and insulator should be checked periodi-
cally after installation to determine if, and at what intervals,
cleaning is required. When monitoring a dust collector, the
sensor should also be checked after a major filter break or
other major process upset. The conditions to look for when
inspecting the probe are:
a) Build-up of material on the probe - leaning intervals
should be such that a heavy build-up of material is not
permitted to form on the leading edge of the probe. Build-
up on the trailing edge is not a concern.
b) Wet materials - ondensed liquids or conductive materials
should not be permitted to build around the insulator. If
these conditions are inherent in your process, please con-
sult the factory to ensure you have the proper probe
configuration.
3) Functional check - If the process and conditions permit, it is
recommended that a test port be installed (See Mechanical
Installation section) upstream of the probe. This port can be
used to simulate a deficiency in the dust collector system by
introducing a small amount of dry powder into the process (i.e.
talcum powder).
M AI N E N A NC E
SY PTO : No digital communications.
SOLUTION:
1) onfirm power is applied by sensor lights.
2) heck signal wiring, confirm polarities.
3) onfirm the master device protocol matches the sensor’s.
4) onfirm the device channel # in the master device
matches the sensor’s #.

General Safety
CAUTION: It is essential that all instructions in this manual be
followed to ensure proper operation of the equipment and safety
of operating personnel. The use of this symbol is used through-
out manual to highlight important safety issues. Please pay par-
ticular attention to these items.
Electrical Shock Caution:
ertain DustAlarm®ES monitors are powered with HIGH VOLT-
AGE. No operator serviceable parts are inside. All servicing is
to be performed by qualified personnel. Each DustAlarm®ES
unit is provided with a "protective conductor terminal"
which shall be terminated to earth ground potential (See
Electrical Installation). This product's design complies with
EN61010-1 installation category 1 (230VA unit), category II
(115VA unit), category III (VD unit) and pollution degree 2.
Electromagnetic Compatibility (E C) for Emissions & Immunity
The DustAlarm®ES was tested and found compliant according
to applicable standards:
IE /EN 61326-1
Electrical Equipment for Measurement, ontrol &
Laboratory Use - EM Requirements
S A FE Y
SPEC I F I C A IO NS - C O N INUED
WAR R A N Y
Monitor Technologies LL warrants each DustAlarm®ES Broken
Bag Detector it manufactures to be free from defects in material and
workmanship under normal use and service within two (2) years from
the date of purchase. The purchaser must give notice of an defect to
Monitor Technologies LL within the warranty period, return the prod-
uct intact and prepay transportation charges. The obligation of
Monitor Technologies LL under this warranty is limited to repair or
replacement at its factory. This warranty shall not apply to any prod-
uct which is repaired or altered outside of the Monitor Technologies
LL factory, or which has been subject to misuse, negligence, acci-
dent, incorrect wiring by others or improper installation. Monitor
Technologies LL reserves the right to change the design and/or
specifications without prior notice.
Power Requirements:
Power Consumption:
Fuse Breaking Capacity:
(Haz-Loc Rating)
Altitude:
Installation Category:
Pollution Degree:
Process Temperature:
Starting Ambient Temp.:
Running Ambient Temp.:
Ambient Humidity:
Relay Outputs:
(2 Isolated SPDT)
Relay Setpoint:
Relay Threshold Range:
Relay Time Delay:
Fail-Safe State:
Digital Link, Hardware:
Digital Link, Protocol:
Running Averaging:
Local Indicator:
Conduit Connections:
Housing:
ounting:
Pressure:
Insulation aterial:
Probe aterial:
Probe Length:
Ship Dims & Weight:
Approvals:
MET US/ :
ATEX/IE Ex:
Conformity:
95-240VA (±10%), 50/60 Hz;
18-28VD (±10%)
≤ 5VA (A ); ≤ 2.5W (D )
1500A @ 250VA ;
300A @ 30VD
6,562 ft (2000m) max
II
2
Max: 392°F (200° ) at probe location. ( L ll)
lass III installations: Process tempera-
ture must not exceed 325°F (164° )
4° to 149°F (-16° to 65° )
-22° to 149°F (-30° to 65° )
Max 95% RH, non-condensing
3A @ 250VA max each
3A @ 30VD max each
Factory default:
Alarm-1: 5x ref value
Alarm-2: 20x ref value
1,000,000,000 Max Units
0 to 60,000 sec
(30 sec factory default)
Alarm
RS-485 (3-wire, half duplex, isolated)
Modbus RTU
(Default serial:
Baud Rate: 38.4K
Data bits: 8
Parity: N
Stop Bits: 2)
0 to 6,553 sec time constant
(100 sec factory default)
Bi-color LED:
Green On = Power Applied
Green Flashing = Auto Setup
Red On = Pre-Alarm
Red Flashing = Alarm
Alternating Red / Green = Error
No Light = No Power
(2) 1/2” NPT
Powder coated die-cast aluminum;
NEMA 4X, EN LOSURE TYPE 4X,
IP66
1” Tri- lamp Type Quick-Disconnect,
316 SS
87 psi maximum
PPS
0.39” diameter, 316 Stainless Steel
ust. Specified Length - SL:
4.75” (121mm) to 20” (508mm)
[Solid coupling extensions up to 24”
(610mm) available.]
35.5”Lx8”Wx8”H; 7 lbs Approx.
(902x203x203mm; 3.2kg Approx.)
Ordinary Locations;
Hazardous Locations with intrinsically
safe probe [Ex ia]
US/CAN: lass II, Division 1, Groups E,F,G
T85° …T201° -30° ≤Tamb≤+65°
lass III T85° …T165°
-30° ≤Tamb≤+65°
US: Zone 20 AEx ia ta III
T85° …T201° Da -30° ≤Tamb≤+65°
CAN: Ex III 1D Ex ia ta III T85° …
T201° Da -30° ≤Tamb≤+65° X
Ex II 1D Ex ia ta III
T85° … T201° Da -30 ≤Tamb≤+65 X
E Mark;
HINA RoHS 2
Probe Cleaning Procedure:
1) lean the sensor probe and especially the insulator with
a damp rag and allow to dry; do not use liquids – install the
sensor in the duct or the Faraday shield. If the red LED is on
or flashing, the sensor was fouled by a build-up of conductive
material over the insulator.
2) If cleaning did not eliminate the false signal, consult the
factory for assistance.
If the preceding information and procedures contained within
the Troubleshooting and Maintenance sections do not prove
sufficient, contact the factory.
7
SPEC IFIC A IO NS
Fuses - External circuits connected to RELAY-1 &
Haz-Loc Versions: RELAY-2 terminals: shall be provided with fuses
conforming to the IE 60127 series and UL 248 series.
Fuses shall be rated for 5A max, 250VA or 30VD .
AC ains Supply: A input power terminals shall
be protected by a fuse value no greater than 85mA.
DC Supply: D input power terminals shall be
protected by a fuse value no greater than 250mA.

BULLETIN
764A
Monitor echnologies LLC
44W320 Keslinger Rd.
t
Elburn, IL 60119
t
630-365-9403
t
800-766-6486
t
[e-mail]
t
www.monitortech.com
ARB JSC MAR 19 2021 DOC-001-764A 4