?Monitor’s line of BINATROL® diaphragm bin monitors consists of economical, reliable, and durable point level controls for point level detection of dry bulk materials. The units can be used to eliminate bin overflow, maintain a predetermined material level, indicate plugging of chutes or conveyors or provide any of a number of level control functions. The flush mount, non-intrusive BINATROL units are ideally used when vessel size or internal clearance is limited, or where protrusion into a vessel is not acceptable. All installation and servicing, including diaphragm replacement and sensitivity adjustment, can be done from outside the vessel.
A diaphragm
bin monitor provides level indication by detecting pressure
applied by the bulk material to the sensing diaphragm. The
unit is installed to a vessel wall so that the diaphragm
is exposed to the material to be sensed. As material contacts
the diaphragm, a force is exerted through the diaphragm to
a pressure plate within the bin monitor. Physical deflection
of the pressure plate activates an internal switch which
is user accessible for signaling alarms, lights or PLC inputs.
When material recedes from the diaphragm, a light duty spring
returns the pressure plate and internal switch back to their
original positions.
Applications
?The BINATROL® diaphragm bin monitors can be used to detect high, low and intermediate product levels on dry material storage bins. The BINATROL can be used on either flat or curved surfaces. For bins with a diameter greater than 12' (3.6m), extra gaskets are not required. For certain applications, the BINATROL can also be used to detect plugged or backed-up conveyor chutes. Depending on the selected options and accessories, these units can be used with light powders, granules, materials with varying particle sizes, pellets, and abrasive and corrosive materials. These products are not normally used with materials which are very light, sticky or of large particle size.
Typical Applications include, but
are not limited to:
Grain
Wood
Chips
Chemicals
Powders
Regrind
Cement
Feed
Pellets
Sawdust
Resin
Features
SIMPLE
DESIGN
The simple design of BINATROL® diaphragm bin monitors provides
for maximum ease of use. The BINATROL operates using a "floating" diaphragm,
which is free of the electric switch mechanism. Diaphragm movement
as little as 1/32" (0.8mm) triggers the unit. Also, the
BINATROL has no driven parts and thus requires no auxiliary
power source.
These design features ensure reliable and durable, low maintenance
operation.
ADJUSTABLE
SENSITIVITY
The BINATROL® offers a sensitivity adjustment that is accessible
from outside of the bin and easily adjusted with a screwdriver.
This enables the user to adjust the sensitivity of the unit,
should vessel contents change, without removing the unit from
the vessel.
LOW
PROFILE MOUNTING
The low profile mounting of the BINATROL® unit eliminates
major protrusions into the bin. This minimizes obstruction
of the material flow in the vessel or chute. Also, the beveled-edge
construction eliminates any possibility of material lodging.
OVERPRESSURE
PROTECTION
The BINATROL® diaphragm din monitor incorporates a unique
sensing plate which provides for overpressure protection. This
feature prevents damage to the unit due to heavy loads or forces.
In the event that a heavy load is applied to the sensing plate,
a mechanical stop prohibits the plate from exerting excessive
pressure on the sensitivity spring.
EXTERNAL
INSTALLATION / MAINTENANCE
One of the biggest assets of the BINATROL® diaphragm bin
monitor is the ability to install and maintain the unit from
outside of the vessel. All parts, including the diaphragm are
accessible from outside of the bin, without removing the mounting
flange. This enables the user to install the unit, change diaphragms
and perform basic maintenance without removing the entire unit.
For applications which require installation from within the
bin, this can also be easily accomplished.
Models
MODEL
G
The Model G is the most basic BINATROL® diaphragm bin monitor.
It provides accurate point level control on most bin types
for products ranging from pellets to fine powders.
MODEL
GX
The Model GX offers all the features of the Model G, but is
specially designed to provide dust-ignition proof protection.
This model should be used in applications which require Class
II dust-ignition proof approval.
MODEL
GX-SS
?The Model GX-SS is the dust-ignition proof version of the Model G with a type 321 stainless steel diaphragm. This diaphragm provides corrosion resistance when used with corrosive materials or added protection in abrasive applications.
Options
DIAPHRAGM
MATERIALS
The Model G and GX BINATROL® units are available with two
different diaphragm materials.
Standard
Diaphragm: The standard diaphragm is constructed of neoprene
and is compatible with most basic applications.
Teflon® Diaphragm: A Teflon® diaphragm is available
for use in high-temp applications. This diaphragm can also
be effectively used in sticky applications.
ULTRA-SENSITIVE
SWITCH
The Model G, GX and GX-SS units come with a standard SPDT switch.
However, for applications involving lightweight materials,
Models G and GX can be specified with an ultra-sensitive switch.
Accessories
HYCAR®
COVER
Monitor offers a HYCAR® (oil resistant) cover for the diaphragm for watertight
applications and to provide additional abrasion resistance. This cover is typically
used with Models G and GX.
Specifications
Power
Requirements:
none
Output:
SPDT
dry contact, 15A @ 250 VAC max
Sensitivity:
GX-SS:
20
lb/ft³ (320 kg/m³ ) minimum material density
Std
Switch:
15
LB/ft³ (240 kg/m³ ) minimum material density
Extra-Sensitive
Switch:
10
LB/ft³ (160 kg/m³ ) minimum material density
Enclosure:
die
cast aluminum, powder coated
Enclosure
Protection:
NEMA
4, IP56 (Model G ONLY)
Mounting
Connection:
flange
with 7.5" (190.5MM) bolt circle
Pressure
Rating:
atmospheric
pressure only
Wire
Entry:
1/2" NPT
Diaphragm
Material:
neoprene,
reinforced Teflon®, or 321ss (GX-SS only)
Operating
Temperature:
G/GX
w/neoprene:
-40° to
180°F (-40° to 82°C)
G/GX
w/Teflon®:
-40° to
250°F (-40° to 121°C)
GX-SS:
-40° to
250°F (-40° to 121°C)
Weight:
G,
GX, GX-SS:
3.25
LB (1.5 kg)
Listings/Approvals:
G
- CSA US/C Ordinary Locations
GX,
GX-SS - UL and CSA Class II, Div. 1, 2,
Groups F, G; CE mark (Ordinary Locations
ONLY)
Min.
Vessel Dia.:
12'
(Smaller vessels will require modifications and
extra gasketing.)
Teflon® is a registered trademark of Dupont Chemical Co.
HYCAR® is a registered trademark of the B.F. Goodrick Company
Warranty
Monitor
Technologies LLC warrants each BINATROL® diaphragm bin
monitor 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 a defect to Monitor 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 shall not apply to any product which is repaired
or altered outside of the Monitor Technologies LLC 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.
623A6.1006
Global Flour Processor Uses Flexar® Guided Wave Radar
A large global flour processor and food products company recently began using the Flexar® guided wave radar in a total of eighteen (18) silos and bins to manage their finished product inventory. Readings from these continuous level sensors is reported as being reliable and accurate, even during pneumatic filling, contrary to their previous measuring system. A previous non-performing ultrasonic system was replaced by the Flexar level sensors. Flexar guided wave radar level sensors were chosen as the best for pneumatically filled dust laden flour silos.
Eight (8) Flexar level sensors are installed in load-out silos that fill bulk trucks with processed and finished flour. These silos are 12ft in diameter and 35ft tall. The finished flour is pneumatically conveyed into these silos. During filling the internal environment of the silos is very dusty and turbulent. The finished flour in these silos is used for loading bulk transport trucks for distribution. In addition, ten (10) Flexar level sensors are installed in 40ft high bins that contain bran. This material is also sent by bulk transport to end users.
All of the Flexar level sensors are equipped with an RS485 digital communications output that is connected to a PC with a graphical user interface for inventory management purposes. Monitor’s SiloTrack™ inventory management software is used by the facility to monitor and manage material inventories of both the finished flour and the bran. SiloTrack allows for multiple user viewing and data access via LAN and this is how the facility will be using the software that provides a flexible, graphical user interface, alarms, report generation and history analysis functions.
Guided wave radar is especially well suited to level measurement applications of dusty powder materials even when measuring during pneumatic filling. Flexar guided wave radar utilizes TDR (time domain reflectometry) technology. Radar pulses are continuously transmitted down the sensor’s probe and guided to the material surface where they are reflected back to the electronics along the wave guide. The time-of-flight of the pulses is measured and directly related to the distance to the material surface and its level.
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