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  • 產品名稱:LVD-800-MPFSS液位開關 美國omega

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LVD-800-MPFSS液位開關 美國omega由美國omega原廠渠道的深圳鑫博恒業科技有限公司特價提供,LVD-800-MPFSS液位開關 美國omega精度高,壽命長,LVD-800-MPFSS液位開關 美國omega是值得信賴的流量儀表。
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LVD-800-MPFSS液位開關 美國omega

不**的干材料旋槳式液位開關
LVD-803 and LVD-804 Series
不**的干材料旋槳式液位開關
可靠的磁技術(**)
開/關蓋-沒有更多的螺栓擰!
布線access-2管道入口
發動機關閉時,槳是阻礙顯著延長電機壽命和降低維護成本
本地狀態指示的大部分型號的光


Standard Units Rated to 121°C (250°F)
Hi-Temp Models Rated to 399°C (750°F)
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) ? 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: 1? 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 ?" diameter 
LISTINGS/APPROVALS
Hazardous Locations: Class I, Div. Groups C, D; Class II, Div. 1 & 2, Groups E, F, G, CE Mark
產品型號/產品描述
LVD-803 Dry level switch, 115 Vac, 1 1/4 NPT
LVD-803-24V Dry level switch, 115 Vac, 1 1/4 NPT, 24Vdc Power
LVD-803-EXP Dry level switch, Class 1, Div. 1 & 2, Groups C, D; Class II, Div. 1 & 2, Groups E, F, G
LVD-803-EXP-HT High Temperature Dry level switch, Class 1, Div. 1 & 2, Groups C, D; Class II, Div. 1 & 2, Groups E, F, G
LVD-803-HT High Temperature, Dry level switch, 115 Vac, 1 1/4 NPT
LVD-804 Dry level switch, 230 Vac, 1 1/4 NPT
LVD-804-HT High Temperature, Dry level switch, 230 Vac, 1 1/4 NPT
Paddles (Required)
LVD-800-1V 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
LVD-800-3V 3 Vane standard for average weight [>320 kg/m3 (>20 lb/ft3)] materials
LVD-800-3VL 3 Vane large for light weight material [>480 kg/m3 (<30 lb/ft3)]
LVD-800-1VS 1 Vane insertable* scimitar for light to average weight [>320 kg/m3 (>20 lb/ft3)] material
LVD-800-2V 2 Vane for heavy materials [>1200 kg/m3 (>75 lb/ft3)] under 11/2" in diameter
LVD-800-4V 4 Vane for use with average to heavy weight materials [>1200 kg/m3 (>75 lb/ft3)]
LVD-800-1VT 1 Vane triangular for light to average weight [>480 kg/m3 (<30 lb/ft3)] material
LVD-800-EFC Ex-flex three-ply 508 mm (20") belt vane for heavy materials over 51 mm (2") in diameter (top mount only)
Accessories
LVD-800-FC Flexible coupling spring flex for absorbing heavy loads, side loads and protect internal workings which extends the life of the paddle
LVD-800-SGGI-6 6" Shaft guard* 11/4" pipe, SCH40, galvanized iron ($1.00 per additional inch)
LVD-800-SGSS-6 6" Shaft guard* 11/4" pipe, SCH40, stainless steel ($2.20 per additional inch)
LVD-800-FCE 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)
LVD-800-SEGI-6 6" Solid shaft extension**: 1/4" pipe, SCH40, galvanized ($0.60 per additional inch)
LVD-800-SESS-6 6" Solid shaft extension**: 1/4" pipe, SCH40, stainless steel ($0.90 per additional inch)
LVD-800-MPFCS Mounting plate with 11/4 NPT full coupling, carbon steel, for top mount installations where a shaft extension and shaft guards are required
LVD-800-MPHCS Mounting plate with 11/4 NPT half coupling, carbon steel, for side mount installations
LVD-800-MPFSS Mounting plate with 11/4 NPT full coupling, stainless steel, for top mount installations where a shaft extension and shaft guards are required
LVD-800-MPHSS Mounting plate with 11/4 NPT half coupling, stainless steel, for side mount installations
LVD-800-MPA Mounting plate with 11/4 NPT heavy duty aluminum for flat surfaces or thin walled vessels where extra strength is required
Replacement Parts
LVD-800-SR Spiral roll pin, 3.18 x 4.76 mm (1/8 x 3/16") SS (connects paddle to solid shaft coupling)
LVD-800-GDP Grooved dowel pin, 3.18 x 15.88 mm (1/8 x 5/8") SS (connects solid shaft coupling to shaft)
LVD-800-DM115 Drive Motor Assembly for LVD803 (115 Vac, 50/60 Hz)
LVD-800-DM230 Drive Motor Assembly for LVD803 (230 Vac, 50/60 Hz)
LVD-800-DM24 Drive Motor Assembly for LVD803 (24 Vac/dc, 50/60 Hz)
LVD-800-MS Micro seal
LVD-800-MMP Motor mounting plate assembly
LVD-800-B Bearings (2 required per unit)
LVD-800-DS Stainless steel drive shaft with slip clutch and gear assembly
LVD-800-RR Retaining ring (for retaining the motor mounting plate to drive shaft)
LVD-800-RS Return spring assembly

注釋: Comes complete with operator’s manual.

LVD-800-MPFSS液位開關 美國omega 

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