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						 SP0702.01 : Cảm biến mức siêu âm - Rosemount 3100 Series 
						Thông số chính:
						Cảm biến đo mức - Đồng hồ đo mức - Level sensor - Level Indicator : 
Cảm biến mức siêu âm - Rosemount 3100 Series 
 
Measurement Principle : Ultrasonic, time-of-flight 
Measuring Range : 26 ft (8 m) for Rosemount 3101, 36 ft (11 m) for Rosemount 3102 and 3105 
Output : 4-20mA for 3101, 4-20mA with superimposed digital HART® communication for 3102 and 3105 
Tư vấn , Thiết kế , Chế tạo dây chuyền – Thiết bị công nghệ , Hệ thống pha trộn - định lượng  được tổng hợp từ các thiết bị công nghệ Bơm - Van - Cảm biến , Thiết bị điều khiển Allen –  Bradley (Mỹ) 
						Hãng cung cấp : ROSEMOUNT 
						Model : Rosemount 3100 Series - Ultrasonic 3101/3102/3105 Level Transmitters   
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					Rosemount 3100 Series - Ultrasonic 3101/3102/3105  Level Transmitters   
The Rosemount 3100 Series Ultrasonic Level Transmitter is the reliable  and cost-effective, non-contacting measurement solution from Emerson.  Time proven ultrasonic technology with advanced software and state-of-the-art  electronics delivers high reliability in a wide variety of applications. 
The 3101 is the entry level model for simple level measurement. Choose  the 3102 for local control functionality with 2 integral signal relays.  For hazardous area applications, the 3105 is certified intrinsically  safe. 
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Continuous  	non-contacting measurement with no moving parts 
     
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Standard  	Integral LCD and push buttons for simple setup and on-site programming 
     
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2 Integral  	signal relays for local control for (3102 only)  
     
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Aluminum  	housing and corrosion resistant PVDF wetted material 
     
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Volume or  	open channel flow calculations with pre-programmed library 
     
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 	Easy plant integration with 4-20mA ⁄ HART® output and PlantWeb support 
     
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Automatic  	temperature compensation with integral or optional remote temperature sensor 
     
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2-wire dc  	loop-powered 
     
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Wide  	operating range to 36 ft. (11 m) 
     
 
  
Features & Benefits 
The Rosemount Series 3100 Ultrasonic Level Transmitter is a cost-effective  measurement solution for a wide range of applications. It has no moving parts,  corrosion resistant PVDF wetted material and a non-contacting measuring method.  So, it requires almost no maintenance. It is unaffected by liquid dielectric  constant, viscosity and density changes. Additionally the 3100 Series offers the  following benefits: 
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Low cost  	of installation 
     
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Low cost  	of commissioning 
     
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Minimal  	maintenance costs 
     
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Process  	downtime minimized 
     
 
  
  
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The  	transmitters are available with threaded or flanged connections, making them  	easy to install. Several pre-programmed laws and strapping tables make  	configuration easy. Configuration can be performed by using the local  	operator interface or HART® configuration tools such as the 375 Field  	Communicator or AMS™Suite: Intelligent Device Manager. 
     
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The  	transmitters can be used with the Rosemount 3490 Series of wall and panel  	mounted control units, providing power and comprehensive control options.  	The transmitter is available with two integral relays, adding to the local  	control functionality. 
     
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The  	non-contact sensor is made from an inert material offering superior  	corrosion resistance and low maintenance requirements. 
     
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The  	integral or remote mounted temperature sensor enables automatic corrections  	where temperature changes in the tank free space could otherwise result in  	an inaccurate reading. 
     
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The local  	programming menu is easy to use. The 3100 may be installed using the 2 in.  	thread or available flange options either directly to the vessel or on a  	suitable bracket above the liquid surface. Three internal buttons are used  	to program the transmitter with the tank depth and the range for the 4-20mA  	output. 
     
 
 
 
A built-in LCD display under the cover is provided to aid setting up.The user  navigates through an intuitive menu, entering data as prompted by the  transmitter. Intelligent software ensures only data specific to the chosen  application is requested, minimizing programming time. 
  
Specifications : 
    
        
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             Measurement Principle  
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             Ultrasonic, time-of-flight 
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             Measuring Range  
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             26 ft (8 m) for Rosemount 3101 
            36 ft (11 m) for Rosemount 3102 and 3105 
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             Instrument Accuracy  
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             Model 3101: ± 0.2 in. (5 mm) for <3.3 ft (1 m),  
            ± 0.5% of measured distance for >3.3 ft (1 m)  
            Models 3102 and 3105: ± 0.1 in. (2.5 mm) <3.3 ft (1 m),  
            ±0.25% of measured distance for >3.3 ft (1 m) 
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             Level Resolution 
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             Better than 1/16 in. (1 mm) 
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             Blanking Distance  
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             12 in. (0.3 m) 
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             Output  
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             4-20mA for 3101  
            4-20mA with superimposed digital HART® communication for 3102 and 3105 
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             Temperature/Pressure Rating  
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             Refer to the Product Data Sheet (PDF @ 400KB) 
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             Hazardous Location Approvals (for 3105 only)  
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             Intrinsic Safety (ATEX, CSA, IECEx, FM) 
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             Display  
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             Standard 4 ⁄ 5 digit display for configuration purposes. 
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             Output Variables  
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             Level, Distance for 3101  
            Level, Distance, Volume, Open Channel Flow for 3102 and 3105 
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             Enclosure  
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             Polyurethane-covered die-cast Aluminum housing. 
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             Ingress Protection  
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             NEMA 4X, IP66 
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             Configuration Tools  
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             AMS, 375 Field Communicator, Rosemount 3490 Series Universal Controller  		or any other DD- or EDDL-compatible host. 
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Applications : 
    
        
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             Storage Tanks: Vertical Tank 
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             Buffer Tanks: Horizontal Tanks 
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             Open Air Applications 
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             Open Channel flow 
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