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 LZYN Series Mass Flowmeter (hereafter we call LZYN) is designed according to the Coriolis Principle. It can be widely used for the process detecting and custody transfer/fiscal unit in many industries such as petroleum , petrochemical industry, pharmacy, paper making, food and energy,and so on. As a fairly advanced kind of flow measurement instrument,it has been paid attention by the circle of measurement and accepted by many customers home and abroad. | |
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LZYN is designed according to the principle of Coriolis force.Under the alternating current  effect, the magnet and coil installed on the measuring tube will make two parallel measuring tubes vibrate according to some fixed frequency. Once there is flow passing through the pipes, Coriolis force will give rise to deflection (phase shift) on the vibration of two pipes and the deflection of vibration is directly proportional to the mass flow of fluid. Pick up them and the mass flowrate could be calculated.
The vibration frequency of measuring tube is determined by the total mass of measuring tube and inner fluid. When then fluid density changes, the vibration frequency of measuring tube will be also changing, as a result, the fluid density can be calculated.
The temperature transducer installed in thepipeline can pick up the fluid temperature on time under the coordination of measuring circuit
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Comparing with the traditional flow measurement method,LZYN has following obvious merits:
3.1 Enable to measure directly mass flow rate of fluid in the pipeline without changing any parameters,which avoisds the some measurement error of intermediate links.Its mass flowrate can be high accuracy and good repeatability within bigger range of turndown ratio.
3.1 Fluid measured can be more extensive, such as the steady uniform floe of common viscosity fluid ,the high viscosity fluid ,non-Newtonian fluid ,slurry containing some solid components and the liquid containing some trace of gas.
3.3 Due to the small vibration,measuring tube of the LZYN can be regards as non-moving parts ,which wull reduce the maintenance of flowmeter ,measuring tube of the LZYN can be regards ad non-moving parts,which will reduce the maintenance of flowmeter ,enhance the stability and lifetime.
3.4 Besides the mass flow measurement ,the densitu and temperayure and even consistency can also be picked up and output.
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Specification of Sensor and Flow Range (just for Liquid)
Accuracy
Repeatabilty
Measurement of Density
Measurement of Temperature | |
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| 5.1 Circuit Loop Output |
4-20mA Current Output can be configured to denote the mass flow or volume flow. |
| 5.2 Frequency Output |
Active Frequency Output can be configured to denote the mass flow or volume flow |
5.3 Low Flow Cutoff
When the flow walue measured is lower than the value of Low Flow Cutoff,the LZYN will output zero flow and the totail ser will stop to accumulate .The value of Low Flow Cutoff is usually sets to be 1% of the maximum flowrate.
5.4 Ambient Limitation
5.4.1 Ambient vibration |
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| 5.4.2 Ambient temperature |
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| 5.4.3 Ambient humidity |
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| 5.4.4 Enclosure Grade : IP65 |
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0--LZYN Series Mass Flowmeter
1--Nominal Size(mm)
2--Structure: llntegrate Type 2Separate Type
3--Sensor: P-General Type C-Explosion-proof Type (Details shown in the following)
4--Transminer: A-General Type B-Explosion-proof Type Exd[ib]II CT6
( II C just includes H2 )
5--Medium: Q-Gas
6--Power Supply: 1-24VDC 2-220VAC
7--Output Interface:S-RS485(MODBUS) N-No
8--Nominal Pressure(Mpa):1-1.6 2-2.5 3-4.0 4-6.4
9--Rated Working Temperature Range(℃) :1-50 ~+125 2-50~+200 3-50~ +350
10--Signal Output:F-Pulse Output I-(4-20)mA
11-- Accuracy :A-.01% B-0.1% c-0.5%For example: LZYN-080 2 C B Y 1 S 2 2 I B
Meaning: LZYN Series Mass Flowmeter, DN80mm, Separate Type, Sensor of Exdib II CT3-T6 (II C justincludes H2) ,Transmitter of Exd [ib] IICT6 (II C just in cludes H2) Liquid, 24VDC, RS485 Interface, 2.5MPa, -50 - +200℃, 4 - 20mA Output, 0.2% | |
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