Monitor’s
line of tilt bin level switches are economical, trouble-free
point level controls available for detection of dry bulk materials.
The units can be used as high level indicators to eliminate
bin overflow or to control levels in open piles. In addition,
the tilt switches are useful in determining over or under-load
on conveyor belts. The simple yet efficient internal construction
(one moving part) provides indication when unit is tilted
at a 17° angle throughout the complete 360° of axial
arc. Each tilt switch includes a threaded bore for attaching
extension actuators which can increase sensing repeatability
and protect the tilt switch from direct contact with coarse
material. Monitor offers two different models of tilt switches,
each suited to satisfy different application requirements.
A tilt
switch provides indication by detecting the angular position
of the tilt switch enclosure. Typically the unit is suspended
above the material to be sensed. Internally, a steel ball
centers itself over a switch resulting in switch actuation.
As rising material contacts the tilt switch (or the extension
actuator) the enclosure begins to tilt. When the enclosure
body is tilted at 17°, the steel ball rolls off center,
deactivating the switch. As material falls away from the
switch enclosure body (or the extension actuator) and the
unit becomes upright, the ball returns to its original centered
position, once again causing switch actuation. The change
in the internal switch status is user accessible for signaling
alarms, lights, or interfacing with a PLC.
Monitor’s
tilt switches can be used in a variety of applications and
with many different types of materials. The TC-3 can be
used with materials 15-60 lb/ft³ (240-960 kg/m³ ), while
the TC-1 can be used with materials >45 lb/ft³ (>720
kg/m³ ).
Typical Applications include, but
are not limited to:
Feed
Calcium Dust
Pellets
Wood
Limestone
Metals
Regrind
Rocks
Clays
Resin
Rubber
Malt
Silica Sand
Pre-mix
Features
Passive
switch for activating loads up to 250 VAC
Cast
iron or cast aluminum construction
Easy
installation
Adjustable
measurement height
Ball-float
and paddle-type actuators available
Available Configurations
TC-3
- Monitor’s model TC-3 is a light-duty tilt switch
constructed from cast aluminum. It is ideally suited
for applications where relatively light weight, moderately
sized materials are handled (i.e. 15-60lb/ft³ ; 240-960kg/m³
or particle sizes less than 2in; 50mm). Typical application
materials include feed, plastic pellets and pet food.
TC-1
- Monitor’s model TC-1 is a heavy-duty, weather-proof
tilt switch constructed from cast iron. It is ideally
suited for applications where heavy coarse materials
are handled (i.e. >45lb/ft³ ; >720kg/m³ or
particle sizes exceeding 2in; 50mm). Typical application
materials include coal, ore, rock, aggregate, and sand.
Optional
Accessories (TC-3)
Specifications
Model
TC-3:
Power
Requirements:
None
Output:
SPDT,
10A @ 250 VAC max
Sensitivity:
17° from
vertical axis
Enclosure:
cast
aluminum, unpainted
Enclosure
Protection:
NEMA
4, IP56
Mounting
Connection:
Eyebolt,
3/4" (19mm) I.D.
Wire
Entry:
3/8" NPT
cord connector, cord diameter 0.25 to 0.38in
(6.4 to 9.6mm)
Op.
Temp.:
-40° to
175°F (-40° to 79° C)
Weight:
3
lbs. (1.35 kg)
Approvals:
CE marking (Ordinary
Locations Only)
Model TC-1:
Power Requirements:
None
Output:
SPDT, 15A @ 250 VAC max
Sensitivity:
17° from vertical axis
Enclosure:
cast iron, painted beige
Enclosure Protection:
NEMA 4, IP56
Mounting Connection:
Eyebolt, 1-3/32" (27.7mm) I.D.
Wire Entry:
1/2" NPT cord connector, cord diameter
0.25 to 0.38in (6.4 to 9.6mm)
Op. Temp.:
-40° to 250°F (-40° to 121° C)
Weight:
24 lbs. (11.25 kg)
Approvals:
CE Marking
Warranty
Monitor
Technologies warrants each tilt switch 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 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.
DOC-000-633A
Rev.8.07172009
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.
Mobile
View
TC-3
- Monitor’s model TC-3 is a light-duty tilt switch
constructed from cast aluminum. It is ideally suited
for applications where relatively light weight, moderately
sized materials are handled (i.e. 15-60lb/ft³ ; 240-960kg/m³
or particle sizes less than 2in; 50mm). Typical application
materials include feed, plastic pellets and pet food.
TC-1
- Monitor’s model TC-1 is a heavy-duty, weather-proof
tilt switch constructed from cast iron. It is ideally
suited for applications where heavy coarse materials
are handled (i.e. >45lb/ft³ ; >720kg/m³ or
particle sizes exceeding 2in; 50mm). Typical application
materials include coal, ore, rock, aggregate, and sand.
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