Monitor | Tilt Switch
- 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.
Principle of Operation
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.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
- Low Cost, High Level Detection
- No Calibration
- Minimal MaintenanceApplications
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 240-960 kg/m³, while the TC-1 can be used with materials 720 kg/m³.Typical Applications include, but are not limited to:
Feed Calcium Dust Pellets Wood Metals Limestone Pre-mix Regrind Rocks Clays Resin Rubber Malt Silica Sand
| Specification | 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 |
| Configuration | 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. (Extension actuators are optional. See Optional Accessories Section.) Heavy Duty Tilt SwitchTC-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. |
