Home Products News Feedback Search

LEVEL SWITCH   
 

BIN LEVEL DETECTION SWITCH

BIN Level Detection Switch is an economical point level control device suited for Level Detection application requiring reliable and accurate switching.  Detection can be direct, as when the sensing switch is suspended above the product or when it is installed in the bin wall.  BIN Level Tilt Switch and/or Capacitive Proximity Switch have the ability to detect all types of products, including Fertilizer products, such as Flax, Canola, Barley, Rye, Phosphate, Sulphur, Urea, etc.


GRAIN BIN HIGH LEVEL TILT SWITCHES MODEL CDT-HG, CDT-BA, CDT-BACR

CAPACITIVE PROXIMITY SWITCHES MODEL B-HLS, BP-SWI


GRAIN BIN HIGH LEVEL TILT SWITCH MODEL CDT-HG
Bulletin 100.02
 
GENERAL CONSTRUCTION AND INSTALLATION INSTRUCTIONS 

1. Though rugged in construction the tilt switch should be handled with some care so as not to damage the S.P.S.T. switch installed in the head.  Ensure the switch is vertical when suspended and all kinks are removed from the supplied chain, excess cable should be secured to chain at 18” spacing with cable ties.

2. The switch is normally       open - close        (specify) and will signal when tilted approximately 20° in any direction.  The switch is rated for 24 VDC / 120 VAC, 1.0 Amp and CSA Approved for Class II, Division 1, Groups  F and G, Hazardous Locations. 

3.  Install the switch away from any direct spout flow.  Suspension should be a sufficient distance from the bin wall to permit tilting of switch and cable.

4.  Adjust chain to a depth that will permit emptying of leg or conveyor after a bin full status is indicated.

5.  Available in lieu of steel chain, 2” x 2” x .25” slotted adjustable UPVC 90° angles, 3’ - 0” in length and adjustable to 5’- 6”.  (See overleaf).

Note: With 2" x 2" x .25" slotted adjustable UPVC 90 angle suspension (optional).  Sphere need only to move 7" in any horizontal direction to signal.

  • BLACK WIRE: COMMON

  • WHITE WIRE: N.O./N.C. (AS SPECIFIED)

  • GREEN WIRE: GROUND

 

 

 
GRAIN BIN HIGH LEVEL TILT SWITCH MODEL CDT-BA
Bulletin 100.021
 
  GENERAL CONSTRUCTION AND INSTALLATION INSTRUCTIONS 

1. Though rugged in construction the tilt switch should be handled with some care so as not to damage the S.P.S.T. switch installed in the head.  Ensure the switch is vertical when suspended and all kinks are removed from the supplied chain, excess cable should be secured to chain at 18” spacing with cable ties.

2. The switch can be wired to the normally closed (white conductor) or normally open (red conductor). As the bin fills the switch will signal when tilted 15° in any direction.  Upon emptying it will also signal upon reaching 5°.  The switch is rated for 24VDC/120VAC, 1.0Amp. 

3.  Install the switch away from any direct spout flow.  Suspension should be a sufficient distance from the bin wall to permit tilting of switch and cable.

4.  Adjust chain to a depth that will permit emptying of leg or conveyor after a bin full status is indicated.

5.  Available in lieu of steel chain, 2” x 2” x .25” slotted adjustable UPVC 90° angles, 3’ - 0” in length and adjustable to 5’- 6”.  (See overleaf).

Note: With 2" x 2" x .25" slotted adjustable UPVC 90° angle suspension (optional).  Sphere need only to move 4" in any horizontal direction to signal.

  • BLACK WIRE: COMMON

  • WHITE WIRE: NORMALLY CLOSE

  • RED WIRE: NORMALLY OPEN

  • GREEN WIRE: GROUND

 

 

 
FERTILIZER BIN HIGH LEVEL TILT SWITCH MODEL CDT-BACR
Bulletin 100.022
 
 

 
GENERAL CONSTRUCTION AND INSTALLATION INSTRUCTIONS 

1. Though rugged in construction the tilt switch should be handled with some care so as not to damage the S.P.S.T. switch installed in the head.  Ensure the switch is vertical when suspended and all kinks are removed from the supplied chain, excess cable should be secured to chain at 18” spacing with cable ties.

2. The switch can be wired to the normally closed (white conductor) or normally open (red conductor). As the bin fills the switch will signal when tilted 15° in any direction.  Upon emptying it will also signal upon reaching 5°.  The switch is rated for 24VDC/120VAC, 1.0Amp. 

3.  Install the switch away from any direct spout flow.  Suspension should be a sufficient distance from the bin wall to permit tilting of switch and cable.

4.  Adjust chain to a depth that will permit emptying of leg or conveyor after a bin full status is indicated.

5.  Available in lieu of steel chain, 2” x 2” x .25” slotted adjustable UPVC 90° angles, 3’ - 0” in length and adjustable to 5’- 6”.  (See overleaf).

Note: With 2" x 2" x .25" slotted adjustable UPVC 90° angle suspension (optional).  Sphere need only to move 4" in any horizontal direction to signal.

  • BLACK WIRE: COMMON

  • WHITE WIRE: NORMALLY CLOSE

  • RED WIRE: NORMALLY OPEN

  • GREEN WIRE: GROUND

 

 

 
CAPACITIVE PROXIMITY BIN LEVEL SWITCH MODEL B-HLS AND BP-SWI
Bulletin 100.023

GENERAL  DESCRIPTION:

The Capacitive Proximity Sensor is protected by a high-density polyethylene (UHMW) enclosure, which is highly abrasion resistant to random product flow over the sensor probe.

The sensor incorporates a compensating circuitry to combat the negative effect of humidity on sensor probe.

The Capacitive sensor is an economical point level control device suited for applications requiring reliable and accurate switching.  It has the ability to detect all types of products such as Flax, Canola, Barley, Rye, Red Spring Wheat, Amber Durum Wheat, Peas, Oats, including Fertilizer products such as Phosphate, Sulphur, Urea, and Potash (Stainless Steel hardware provided for fertilizer). 

Detection can be direct, as when the sensing probe is installed in the bin wall or when it is suspended above the product.

SPECIFICATIONS

  • Sensor:   Two- wire Capacitive Proximity sensor.

  • Supply Voltage:      20 - 250 VAC / VDC 50 - 60 Hz.

  • Rated operational current:  Max .35 A AC ,.25 A DC To 50°C.

  • Minimum load current:  8 mA.

  • Off state current:  Max 1.9 mA.                                 

  • Voltage drop:  5.5 VAC/VDC @ Max current.

  • Sensing distance:  3 - 22  mm (.125” -  .875”).

  • Operating temperature:  -40°C to70°C (-40°F to 158°F).

  • Protection:  High noise immunity, transients, reverse polarity, RFI/GSM interference, IP67.

SENSOR FEATURES:

  • Cable connection is standard, sensor  with quick disconnect plug (optional).

  • LED indicator for output ON.

  • Selector switch for NO or NC contact.

  • The sensitivity or distance is factory set and sealed at the optimum range, or no field adjustments required.

  • Humidity compensating circuitry.

  • Interchangeable sensor probes for models B-HLS and BP-SWI (quick disconnect plug type only)

  • Sensor probe site calibrators are available should factory sensitivity setting be disrupted and is desired to return to original factory sensitivity setting.

HOUSING MATERIAL:

Body:  Thermoplastic polyester with 3,6 mm (.14”) high density Polyethylene (UHMW) enclosure.

3,0 m (10’) Cable:  With straight quick disconnect, abrasion resistant Polyurethane jacket -40°C to 80°C (-40°F to 176°F).  With added abrasion resistant and flame retardant polyethylene braided sleeving.

3,0m (10’) plated  welded steel chain  93,0 Kg (205.0 LBS) Safe Working Load and disconnect chain link.

INSTALLATION:

BIN HIGH LEVEL SUSPENSION:  (Model B-HLS) 3,0 m (10’-0”) cable connection or straight quick disconnect plug and  welded chain.

For bin high level application, suspend the sensor above the product by using the chain provided.  Adjust the height of the sensor to desired length by raising or lowering the chain. 

BIN SIDE WALL INSTALLATION • PLUG SWITCH • PIPE RANDOM PRODUCT FLOW  MINIMUM 229 mm dia (9.0”). (Model BP-SWI) 2,13 m (7’-0”) cable connection or 90L quick disconnect plug.

Refer to CDL’s template provided, dwg no. 340.  Use template as a guide and hole saw 44,0 mm dia (1.75”)opening.  Drill (2) 5,6 mm dia (.22”) holes to secure switch support.  Use provided (2) self-tapping screws to secure switch support, tighten screws to compress gasket to approximately 3,2 mm (.125”).

ADJUSTING SENSITIVITY:

The environment in which capacitive sensors are installed can often be unstable due to product grounding, temperature, humidity and industrial (noise) interference.  Because of this, the sensitivity adjustment feature is a best choice to accommodate a mechanically demanding area.

The sensitivity is factory set (and sealed) at the optimum range, for grounded product enclosures for indicated products and will operate within a temperature  range of -33°C to 70°C  (-27°F to 158°F) with varying product distances to the sensor probe.  From a sensor probe touch at -33°C to 32 mm at 70°C (-27°F to 1.25” at 158°F. However, a sensitivity range adjustment screw (potentiometer) is provided (break seal) should the user wish to change the setting for other products.

Use the potentiometer to increase the sensitivity by turning clockwise (CW) or decrease the sensitivity by turning counter clockwise (CCW).

There are many different methods of adjusting the sensitivity range.  The recommended procedure is to start with nothing touching the sensor probe.  Select NO contact by turning the selector switch fully CCW to NO position.  Place the target (product) in front of the sensing probe to the desired distance (recommend .75” @ 22°C to 24 °C).  If the LED is not out, turn the sensitivity adjustment screw CCW until the LED goes out.  Slowly turn the sensitivity adjustment screw CW until the LED just goes ON.

Note:  When installing the sensor ensure a minimum of 38,0 mm (1.5”) clearance (free zone) of all objects surrounding the capacitance probe on interior of bin or pipe.

TRIPLESHIELDTM Sensor Technology

Highest Standard of Immunity:

  • Electrostatic Discharges
  • Communication Interference (GSM)
  • Transient (burst) Interference
  • Wire-conducted Interference

 

WIRING DIAGRAM:  2 wire AC/DC capacitive proximity switch model B-HLS & BP-SWI

Wiring diagram for cable connection or quick disconnect plug, 90 or straight type.  Model B-HLS and BP-SWI

 

 

 


Box 99 Norwood Grove RPO • Winnipeg, Manitoba Canada R2H 3B8
Ph: 204-237-0440  Fax: 204-237-9208 Email: dionic@mts.net
Last modified: 07/28/07