Double Power System Turbine Flow Meter High Accuracy Strong Signal
Resolution
1. Introduction
LWGYML series intelligent liquid turbine flow meter is a new type
of intelligent instrument with integrated turbine flow sensor and
display product calculation developed by advanced ultra-low power
single-chip microcomputer technology, which has obvious advantages
such as compact mechanism, clear reading, high reliability,
undisturbed by external power supply, lightning resistance and low
cost.
2. Features
- High accuracy, usually reach ±1%R,±0.5%R,or even reach ±0.2%R for
high-precision type.
- Good repeatability, it can reach 0.05%-0.2% in short term, if
regular calibration or online calibration can get an extremely high
accuracy, so it is preferred in foreign trade.
- Pulse signal output, it is suitable for totalizer measurement and
computer connection, no zero drift,strong capacity of resisting
disturbance.
- High frequency signal(3-4KHz), strong signal resolution.
- Wide range, middle and big diameter can reach 1:20, and small
diameter can reach 1:10.
- Compact structure, easy installation and maintenance.
3. Application
Turbine Flowmeter is widely used in the following measurement
objects: oil, organic liquid, inorganic liquid, liquefied gas,
natural gas, gas and cryogenic fluid and so on. It is widely used
for trade settlement at the transshipment and gathering stations of
liquefied petroleum gas, refined oil and light crude oil abroad,
and at the first and last stations of large crude oil pipelines. In
Europe and the United States, turbine Flowmeters are natural gas
meters second only to orifice Flowmeters. Only in the Netherlands,
more than 2600 gas turbine Flowmeters of various sizes and
pressures from 0.8MPa to 6.5MPa have been used in natural gas
pipelines. They have become excellent natural gas Flowmeters.
Although the excellent metering characteristics of turbine
Flowmeter are favored by people, it gives people the impression
that it is made up of moving parts with short service life and
hesitation in selection. Through people's unremitting efforts, it
should be said that the situation has greatly improved.Turbine
Flowmeter as the most general Flowmeter, its products have been
developed into a multi-variety, full-series, multi-specification
mass production scale.
In addition to the extensive application of the turbine Flowmeter
in the above-mentioned industrial departments, it has also been
widely used in some special departments, such as scientific
research and experiments, national defense science and technology,
and metrology departments. The use of these fields just avoids its
weakness (not suitable for long-term continuous use). Give full
play to its characteristics (high precision, good repeatability,
can be used for high pressure, high temperature, low temperature
and micro-flow conditions). In these fields, most of them carry out
special structural design according to the special requirements of
the tested object, and they are special instruments that do not
carry out mass production.
4. Specifications
Pipeline Diameter(mm)
and
Connection | 4,6,10,15,20,25,32,40
Thread Connection |
(15,20,25,32,40) 50,65,80,100,125,150,200
Flange Connection |
| Accuracy | ±1%R,±0.5%R,±0.2%R(Special Order) |
| Turn Down Ratio | 10:1; 15:1; 20:1 |
| Material | 304SS,316(L)SS, etc |
| Medium Temperature | -20℃~+110℃ |
| Environmental Conditions | Temperature: -10℃~+55℃
Relative humidity: 5%~90%
Atmospheric pressure: 86~106KPa |
| Power supply | Sensor:+12VDC,+24VDC(Option)
Transmitter:+24VDC
Local Display:3.2V Lithium Battery |
| Output Signal | Sensor:Pulse Frequency Signal(Low level≤0.8V, High level≥8V)
Transmitter:Two Wired 4-20mA Current Signal |
| Signal Cable | STVPV 3x0.3(Three Wired),2x0.3(Two Wired) |
| Signal Cable Connection | Houseman Connector(Standard Type)
Inner Thread M20x1.5(Explosion Type) |
| Transmission Distance | ≤1000m |
| Explosion Proof | None(Standard Type)
EXdIIBT6(Explosion Proof) |
| Protection Class | IP65 |
5. Installation Dimension
According to the diameter, choose thread or flange connection to
install the senor. As to installation method, please check Pic4,
Pic5, Pic6.
Pic4 LWGYML-4~10 Structure & Installation Dimension Diagram
Pic5 LWGYML-15~40 Structure & Installation Dimension Diagram
Pic6 LWGYML-50~200 Structure & Installation Dimension Diagram
| Pipeline Diameter | L | Thread Connection | Flange Connection |
| (mm) | G | D
(mm) | d
(mm) | n |
| DN4 | 295 | G1/2 | | | |
| DN6 | 330 | G1/2 | | | |
| DN10 | 450 | G1/2 | | | |
| DN15 | 75 | G1 | θ65 | θ14 | 4 |
| DN20 | 80 | G1 | θ75 | θ14 | 4 |
| DN25 | 100 | G1-1/4 | θ85 | θ14 | 4 |
| DN32 | 120 | G2 | θ100 | θ14 | 4 |
| DN40 | 140 | G2 | θ110 | θ18 | 4 |
| DN50 | 150 | | θ125 | θ18 | 4 |
| DN65 | 170 | | θ145 | θ18 | 4 |
| DN80 | 200 | | θ160 | θ18 | 8 |
| DN100 | 220 | | θ180 | θ18 | 8 |
| DN125 | 250 | | θ210 | θ25 | 8 |
| DN150 | 300 | | θ250 | θ25 | 8 |
| DN200 | 360 | | θ295 | θ25 | 12 |
6. Configuration
| LWGYML Series Turbine Flow Meter Configuration |
| Model | LWGYML |
| Pipe Material | 4 | 4mm |
| 6 | 6mm |
| 10 | 10mm |
| ...... | |
| 200 | 200mm |
| Model Description | N | No Display,12VDC Power Supply,Pulse Output, High Level≥8V Low
Level≤0.8V |
| A | No Display,4-20mA 2 Wired Current Output |
| B | Local Display,Battery Operated |
| C | Local Display,4-20mA 2 Wired Current Output |
| C1 | Local Display,RS485 Output |
| C2 | Local Display, HART Output |
| Accuracy | 05 | 0.5 Grade |
| 10 | 1.0 Grade |
| Turbine Type | W | Extended Ratio |
| S | Standard Ratio |
| Material | S | SS 304 |
| I | SS 316(L) |
| Explosion Proof | N | None |
| E | Explosion Type(ExmIICT6 or ExdIIBT6) |
| Pressure Rate | N | Normal Pressure |
| H | High Pressure |
| Connection Type | T | Thread Connection |
| F | Flange Connection |
| Filter | N | None |
| F | With Filter |
7.Product Details
