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Fail-Safe Dry Material Rotary Paddle Level Switches

LVD-803 and LVD-804 Series   
1 year warranty CE RoHS
 
Fail-Safe Dry Material Rotary Paddle Level Switches
LVD-803 and LVD-804 Series:Fail-Safe Dry Material Rotary Paddle Level Switches
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USD$15,270.00  LVD-803
Reliable Magnetic Technology (Patented)
Twist On/Off Cover— No More Bolts!
Wiring Access—2 Conduit Entrances
Motor Shuts Off When Paddle is Impeded Significantly Extends Motor Life and Reduces Maintenance Costs
Local Status Indicating Light on Most Models
Standard Units Rated to 121°C (250°F)
Hi-Temp Models Rated to 399°C (750°F)

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The LVD-800 Series fail-safe bin monitor is the state-of-the-art in rotary paddle technology. Utilizing magnetic sensing technology and a unique housing design, the LVD-800 Series fail-safe bin monitor is the most reliable, technician-friendly, rugged and economical truly fail-safe rotary paddle point level control sensor of its kind.

The LVD-800 Series fail-safe bin monitor provides the ultimate in performance wherever critical continuous operation must be ensured. Detection of both material presence and its own operational status is performed on a continuous basis. The LVD-800 Series fail-safe level sensor monitors its electrical and mechanical operating condition. This, in conjunction with separate outputs provided for material sense and unit status (fault conditions) makes this unit a "truly" fail-safe device.

While the LVD-800 Series fail-safe bin monitor is an evolution in rotary paddle technology, it continues to use tried-and-true operating techniques. Unlike many other available units, the LVD-800 Series incorporates a feature that automatically shuts off its motor when the paddle is in a stalled condition. This extends the life of the unit and minimizes maintenance.

Principle of Operation
The operation of the LVD-800 Series rotary paddle fail-safe bin monitor uses magnetic sensing technology to detect both material presence and operational status of the unit. This method is simple and more reliable than that used by other manufacturers. The unit is installed through the wall of the vessel so that the paddle protrudes inside the vessel. A small electric motor drives the paddle, which rotates freely in the absence of material.

The rotation of the unit’s shaft is continuously monitored by detection of a magnetized rotating disk (patented). When the paddle is impeded by material, the shaft rotation stops. The motor rotates within the housing and magnetized sections of the motor mounting plate are detected (patented). Use of these magnetic sensing techniques eliminates problems that may occur with fouling of the optical systems used by other brands.

The built-in microcontroller performs self-diagnostics and monitors both shaft and motor mounting plate rotation. This allows the unit to easily distinguish between material presence and any electrical and mechanical failure of the unit. When material presence is detected, the SENSE relay changes state and the drive motor is deenergized to extend motor life. This output is available to control a process function or alarm circuit. When the material level drops, a tension spring returns the drive motor to its original running condition and is reactivated.

A unit failure is detected by sensing a lack of shaft rotation while material presence has not been detected by rotation of the motor mounting plate. In a failure condition the independent FAULT relay will change state indicating that an error condition exists. Monitoring the state of both the SENSE and FAULT relays provides the most flexibility for control and fail-safe monitoring.

The rugged and reliable design of the LVD-800 Series fail-safe bin monitor makes it the best choice for critical level control applications. The unit is compatible with many granular, pelletized and powder bulk applications. It can be utilized for high level indication of materials over 160 kg/m³ (10 lb/ft³) and for low and intermediate level indication for materials over 80 kg/m³ (5 lb/ft³). The LVD-800 Series bin level monitor can be installed almost anywhere dry bulk materials are stored including bins, hoppers, silos and tanks.

Please see the Material Characteristics Guide for assistance in determining the compatibility with the LVD-800 series.

SPECIFICATIONS
Power Requirements: 115 Vac (±15%); 9 VA; 50/60 Hz; 230 Vac (±15%); 9 VA; 50/60 Hz
Ambient Operating Temp: -40 to 65°C (-40 to 150°F)
Internal Bin Temp*:
    Standard Unit: to 121°C (250°F)
    Hi-Temp Unit: to 399°C (750°F)
Conduit Connection: Two (2) ¾ NPT

OUTPUTS
Material Sense:
One SPDT; 5A @ 250 Vac, 30 Vdc max
Unit Status (Fault): One SPDT; 5A @ 250 Vac, 30 Vdc max
Maximum Pressure: 30 psi (2 bar)
Sensitivity: 80 kg/m³ (5 lb/ft³) minimum material density (when using large 3-vane paddle)
Indicators: Red and green high intensity LEDs indicate material sense and unit status conditions (Ordinary Location unit only)
Housing: Die cast aluminum, NEMA-4, IP66
Housing Finish: Powder coating
Mounting Connection: 1¼ NPT
Weight: Approx. 3.9 kg (8.5 lb)

MATERIALS OF CONSTRUCTION/ACCESSORIES
Flexible Couplings:
304 stainless steel
Mounting Plates: Carbon steel or 304 stainless steel
All Paddles Except Ex-Flex: 304 SS
Ex-Flex Belt: 304 SS coupling, rubber/fabric blend belt
Flexible Cable Extension: 304SS ¼" diameter

LISTINGS/APPROVALS
Hazardous Locations: Class I, Div. Groups C, D; Class II, Div. 1 & 2, Groups E, F, G, CE Mark


To Order (Specify Model Number)    
expand list What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.
 Part Number   Availability   Price   Description RoHS   Qty.
Click to expand/minimize a list of what others bought with the LVD-803  LVD-803 4 Weeks   15,270.00    Dry level switch, 115 Vac, 1 1/4 NPT RoHS compliant
Click to expand/minimize a list of what others bought with the LVD-803-24V  LVD-803-24V    Consult sales   Dry level switch, 115 Vac, 1 1/4 NPT, 24Vdc Power RoHS compliant
    LVD-803-EXP 4 Weeks   16,615.00    Dry level switch, Class 1, Div. 1 & 2, Groups C, D; Class II, Div. 1 & 2, Groups E, F, G RoHS compliant
    LVD-803-EXP-HT 4 Weeks   28,515.00    High Temperature Dry level switch, Class 1, Div. 1 & 2, Groups C, D; Class II, Div. 1 & 2, Groups E, F, G RoHS compliant
    LVD-803-HT 4 Weeks   27,615.00    High Temperature, Dry level switch, 115 Vac, 1 1/4 NPT RoHS compliant
    LVD-804 4 Weeks   15,495.00    Dry level switch, 230 Vac, 1 1/4 NPT RoHS compliant
    LVD-804-HT 4 Weeks   26,940.00    High Temperature, Dry level switch, 230 Vac, 1 1/4 NPT RoHS compliant
 Paddles (Required)
Click to expand/minimize a list of what others bought with the LVD-800-1V  LVD-800-1V 4 Weeks   1,205.00    1 Vane insertable* for low level control of avg. weight [>320 kg/m3 (>20 lb/ft3)] material or low to high level control of heavy materials 38 mm (11/2") diameter RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-3V  LVD-800-3V In Stock   1,205.00    3 Vane standard for average weight [>320 kg/m3 (>20 lb/ft3)] materials RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-3VL  LVD-800-3VL In Stock   1,270.00    3 Vane large for light weight material [>480 kg/m3 (<30 lb/ft3)] RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-1VS  LVD-800-1VS 4 Weeks   1,205.00    1 Vane insertable* scimitar for light to average weight [>320 kg/m3 (>20 lb/ft3)] material RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-2V  LVD-800-2V In Stock   1,205.00    2 Vane for heavy materials [>1200 kg/m3 (>75 lb/ft3)] under 11/2" in diameter RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-4V  LVD-800-4V 4 Weeks   1,205.00    4 Vane for use with average to heavy weight materials [>1200 kg/m3 (>75 lb/ft3)] RoHS compliancy undetermined
    LVD-800-1VT In Stock   2,360.00    1 Vane triangular for light to average weight [>480 kg/m3 (<30 lb/ft3)] material RoHS compliancy undetermined
    LVD-800-EFC 4 Weeks   2,360.00    Ex-flex three-ply 508 mm (20") belt vane for heavy materials over 51 mm (2") in diameter (top mount only) RoHS compliancy undetermined
 Accessories
Click to expand/minimize a list of what others bought with the LVD-800-FC  LVD-800-FC In Stock   1,675.00    Flexible coupling spring flex for absorbing heavy loads, side loads and protect internal workings which extends the life of the paddle RoHS compliancy undetermined
    LVD-800-FCE 4 Weeks   6,960.00    Flexible cable extension, 304SS, 1.98 m (78") (can be cut in field) eliminates the need for a mounting plate, extension guard and flexible coupling ($1.90 per additional inch) RoHS compliancy undetermined
    LVD-800-MPA 4 Weeks   1,925.00    Mounting plate with 11/4 NPT heavy duty aluminum for flat surfaces or thin walled vessels where extra strength is required RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-MPFCS  LVD-800-MPFCS 4 Weeks   1,205.00    Mounting plate with 11/4 NPT full coupling, carbon steel, for top mount installations where a shaft extension and shaft guards are required RoHS compliancy undetermined
Click to expand/minimize a list of what others bought with the LVD-800-MPHCS  LVD-800-MPHCS 4 Weeks   1,205.00    Mounting plate with 11/4 NPT half coupling, carbon steel, for side mount installations RoHS compliancy undetermined
    LVD-800-MPFSS In Stock   3,070.00    Mounting plate with 11/4 NPT full coupling, stainless steel, for top mount installations where a shaft extension and shaft guards are required RoHS compliancy undetermined
    LVD-800-MPHSS 4 Weeks   3,070.00    Mounting plate with 11/4 NPT half coupling, stainless steel, for side mount installations RoHS compliancy undetermined
 Galvanized Pipe Shaft Guard* 11/4" pipe, SCH40
    LVD-800-SGGI-6 4 Weeks   1,160.00    6" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-12 4 Weeks   1,450.00    12" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-18 4 Weeks   1,925.00    18" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-24 4 Weeks   2,435.00    24" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-36 4 Weeks   3,165.00    36" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-48 4 Weeks   3,820.00    48" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-60 4 Weeks   4,715.00    60" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SGGI-72 4 Weeks   5,390.00    72" Shaft guard* 11/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
 Stainless Steel Shaft Guard* 11/4" pipe, SCH40
    LVD-800-SGSS-6 4 Weeks   1,675.00    6" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-12 4 Weeks   2,360.00    12" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-18 4 Weeks   3,070.00    18" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-24 4 Weeks   3,595.00    24" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-36 4 Weeks   5,165.00    36" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-60 4 Weeks   7,635.00    60" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SGSS-72 4 Weeks   8,980.00    72" Shaft guard* 11/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
 Galvanized Pipe Solid shaft extension** 1/4" pipe, SCH40
    LVD-800-SEGI-3 In Stock   1,205.00    3" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-6 4 Weeks   1,450.00    6" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-9 In Stock   1,450.00    9" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-12 In Stock   1,675.00    12" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-18 4 Weeks   1,925.00    18" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-24 4 Weeks   2,135.00    24" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-30 4 Weeks   2,360.00    30" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-36 In Stock   2,640.00    36" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-48 4 Weeks   3,070.00    48" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-60 4 Weeks   3,520.00    60" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
    LVD-800-SEGI-72 4 Weeks   3,820.00    72" Solid shaft extension**, 1/4" pipe, SCH40, galvanized pipe RoHS compliancy undetermined
 Stainless Steel Solid shaft extension**, 1/4" pipe, SCH40
    LVD-800-SESS-3 In Stock   1,450.00    3" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-6 4 Weeks   1,675.00    6" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-9 4 Weeks   1,675.00    9" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-12 4 Weeks   1,925.00    12" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-18 4 Weeks   2,135.00    18" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-24 In Stock   2,360.00    24" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-36 4 Weeks   3,070.00    36" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-48 In Stock   3,520.00    48" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-60 4 Weeks   4,045.00    60" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
    LVD-800-SESS-72 4 Weeks   4,490.00    72" Solid shaft extension**, 1/4" pipe, SCH40, stainless steel RoHS compliancy undetermined
 Replacement Parts
    LVD-800-SR 4 Weeks   269.00    Spiral roll pin, 3.18 x 4.76 mm (1/8 x 3/16") SS (connects paddle to solid shaft coupling) RoHS compliancy undetermined
    LVD-800-GDP 4 Weeks   269.00    Grooved dowel pin, 3.18 x 15.88 mm (1/8 x 5/8") SS (connects solid shaft coupling to shaft) RoHS compliancy undetermined
    LVD-800-DM115 4 Weeks   2,855.00    Drive Motor Assembly for LVD803 (115 Vac, 50/60 Hz) RoHS compliancy undetermined
    LVD-800-DM230 4 Weeks   2,855.00    Drive Motor Assembly for LVD803 (230 Vac, 50/60 Hz) RoHS compliancy undetermined
    LVD-800-DM24    Consult sales   Drive Motor Assembly for LVD803 (24 Vac/dc, 50/60 Hz) RoHS compliancy undetermined
    LVD-800-MS In Stock   357.00    Micro seal RoHS compliancy undetermined
    LVD-800-MMP In Stock   730.00    Motor mounting plate assembly RoHS compliancy undetermined
    LVD-800-B 4 Weeks   505.00    Bearings (2 required per unit) RoHS compliancy undetermined
    LVD-800-DS 4 Weeks   730.00    Stainless steel drive shaft with slip clutch and gear assembly RoHS compliancy undetermined
    LVD-800-RR 4 Weeks   269.00    Retaining ring (for retaining the motor mounting plate to drive shaft) RoHS compliancy undetermined
    LVD-800-RS 4 Weeks   1,430.00    Return spring assembly RoHS compliancy undetermined
All dollar amounts on this site are shown in US currency.

 Note: Comes complete with operator’s manual.

* Order paddles separately.

For optional 24VDC, add suffix "-24V" to model number, (available on the LVD-803 only), add $30 to price.

For optional high temperature version up to 750°F for SS (top or vertical mount only), add suffix "-HT" to model number, add $300 to price.

* Insertable paddles eliminate the need for mounting plate. LVD-800-1VS is insertable through either a half or full 11/4" coupling, that is welded to the bin wall. LVD-800-1V is insertable through a half 11/4" coupling.

* Shaft guards are required for use with solid shaft extensions to limit the movement caused by side loading that would otherwise damage the working components of the paddle unit. Shaft guards should be the same length as the extension and should always be used when the extension meets or exceeds 460 mm (18") in length.

** Extension and guard lengths [not to exceed 3.6 m (144") in length]


 Ordering Example: (1) LVD-800-3V 3 Vane standard for average weight [>320 kg/m3 (>20 lb/ft3)] materials, USD$1,205.00,  plus (1) LVD-803 Dry level switch, 115 Vac, 11/4, USD$15,270.00, USD$1,205.00 + 15,270.00 = USD$16,475.00

 Related Links - Manual, Related Products
 Product Manual
   Download LVD-800 Series - Dry Material Rotary Paddle Level Switches
   Download LVD-800-FCE - FLEXIBLE CABLE EXTENSION
 Related Products
Material Characteristics Guide for LVD-800 Level Sensors Material Characteristics Guide for LVD-800 Level Sensors:
   

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