Sanitary type liquid level transmitter
一、Product introduction
WS3051-WP Sanitary type liquid level transmitter is our company to introduce foreign advanced technology and equipment to produce a new type transmitter. The key raw materials, components are derived from the import,and whole machine is assembled and tested strictly. The product has the characteristics of advanced design principles, complete varieties and specifications, easy to install and use, and so on. Because this model appearance completely integrates the most advantages of the two kinds of transmitter (Rosemount3051and Yokogawa EJA)is popular and widely used, allowing users to find everything fresh and new feeling, and directly replace traditional products and installation, strong versatility and ability to substitute. In order to adapt to the continuous improvement of the level of domestic automation and development, the series of product design is compact and delicate, more introduced with the HART field bus protocol intelligent functions.
二、Operational principle
WS3051-WP sanitary type liquid level transmitter is a kind of transmitter which is suitable for sanitary standard. And it can installed directly on the pipe or container. Because the diaphragm is in contact with the liquid medium, without the positive pressure side tube leads, therefore can measure high temperature, high viscosity, easy to crystallize, easy precipitation and strong corrosion medium, and then convert it into 4 ~ 20mA DC signal output.
三、Technical characteristics
● Simple structure: there is no movable or elastic element, high reliability, small maintenance.
● Convenient Installation: the built-in type structure without any special tools.
● Convenient adjustment: zero, range two potentiometer can be in the effective range of liquid level detection of zero migration or range of change, the two adjustment does not affect each other.
● Wide use: suitable for the medium level measurement of hygiene standard.
四、Product features
1. Wide measuring range: 0-100m
2. Zero and span continuous adjustable
3. Reverse polarity protection and current limiting protection
4. Good impact resistance performance
5. High precision、High stability、High reliability
6. Special connection structure, easy maintenance
7. Applicable to occasions with higher requirements, comply with the requirement of measurement standard
8. Unique design makes the water hammer shock performance is good, long service life
9. Exquisite structure
10. Good freezing resistance
11.Using the two wire transmitter integrated structure, no moving parts, simple maintenance.
12.Four digit LCD display. Hd backlight,easy to observe data at the scene.
13.Intrinsically safe type and explosion proof type can be used for dangerous scene.
五、Technique target
Load characteristic diagram(Figure 1-3)
Intrinsic error
| 0.2%F•S、0.5%F.S
|
Measurement range
| 0-100m -0 1MPa~0、0~(10KPa~60MPa) (User selection)
|
Linearity
| ≥0.2%F•S
|
Temperature drift
| <±0.025%F•S/℃(0-50℃)
|
Long term stability
| ≤0.02%F•S/Year
|
Response time
| ≤10mS
|
Power supply
| 24VDC(12VDC-36VDC)
|
Output
| 4~20mA(or O~10mA 、1~5V、 O~5V 、0~1OV)
|
Load resistance
| RL=Vs-12V/0.023A
|
Temperature range
| Electronic circuits:-40℃~+85℃ Sensitive components (Silicon oil): -40℃~ +104℃ (Inert oil): -18℃ ~ +71℃ |
Environment temperature
| -20~+85℃
|
Storage temperature
| -40~+55℃
|
Electrical interface
| M20×1.5 or 1/2NPT
|
Protection grade
| IP67
|
Liquid materials
| 304、316L
|
Sensor isolation diaphragm material
| 316L、Hastelloy、titanium
|
Start-up time
| Maximum damping time<2s
|
Electrical damping
| 0~16s
|
Flange way
| Flat flange type、Insert type
|
Explosion-proof type
| EXd II CT6
|
u Sugar manufacturing and wine-making industry:
Squeeze juice, syrup, grape juice, etc. alcohol GL degree, ethane alcohol interface, etc.
u Dairy industry:
Condensed milk, lactose, cheese, dry cheese, lactic acid, etc.
u Architecture, mining:
Size mixing, coal (washed coal), potash, brine, phosphate, compound, limestone, copper, etc.
u Petroleum refining:
Lubricating oil, aromatic agent, fuel oil, vegetable oil, etc.
u Food-processing:
Tomato juice, fruit juice, vegetable oil, starch milk, jam, etc.
u Pulp and paper industry:
Black paste, green pulp, pulp washing, evaporator, white pulp, caustic, etc.
u Chemical industry:
Urea, cleaning agent, polymer, ethylene glycol, sodium chloride, sodium hydroxide, etc.
u Petrochemical industry:
Liquefied natural gas, oil and gas washing, kerosene, lubricating oil, oil / water interface, etc.
u Beverage processing:
Beer, soft drinks, wine, instant coffee, malt, etc.
u Pharmacy:
Concentrate, fermentation, evaporation, mixing ratio, etc.
u Environmental protection:
Desulphurization, denitration , etc.
Appendix
Reference table for corrosion resistance of transmitter diaphragm
☆ Good ○ Moderate × Bad