ZRN-LW-A turbine flow sensor

ZRN-LW-A turbine flow sensor

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I. Overview
ZRN-LW-A turbine flow sensor and display instrument composed of turbine flowmeter sensor with high accuracy, good repeatability, simple operation, long life and other characteristics can be widely used in the volume of petroleum, chemical, metallurgy, paper and other industries measure liquids instantaneous flow rate and total volume. ZRN-LW intelligent electronic turbine flow meter (hereinafter referred to as the meter) is a new mechatronic intelligent velocity flowmeter. is our patent product. for the domestic original, it absorbs the traditional rate formula Single-velocity flow meter flowmeter features, innovative structure, improve the accuracy. and through the computer system internal error correction, so that accurate measurement reaches 0.5, and live online calibration. Features The meter is a simple structure, strong durable, easy to install and maintain, no jam. And the work of the media do not ask, oil, gas, sand, mud, and the mixture can still be completely normal. The attendance figures show the cumulative and instantaneous flow, intuitively clear and accurate. and can be cleared zero with standard communication interface Far EasTone secondary display. remote pulse and two current output. There are self-powered. No external power supply can be used. Strong anti-jamming capability of the meter in a high electric field, high Working under a magnetic field normal proof mark IaIICT4, flameproof flag Diibt4, protective:. IP68, suitable for all kinds of places.
Second, the principle
The speed turbine flowmeter is a single flow rate meter, as I plant unique patented product, the structure of a single impeller hanging in the pipeline side, pushing its rotation by the liquid, the sensor is converted into an electrical signal, after the amplifier away transfer out. calculated flow value can be obtained.
Third, the environmental conditions
Ambient temperature: -40 ~ + 80 ℃ external magnetic field ≤400A / m
Three characteristics:
• pressure loss is small, the impeller prevent corrosion.
• has a high resistance to electromagnetic interference and vibration resistance, long operating life and reliable performance.
• The use of advanced ultra-low-power single-chip microprocessor technology, machine function, low power consumption, superior performance. Intelligent traffic with non-linear precision compensation function display
Is Fixed formula accuracy of better than ± 0.02%.
• meter factor can be the key online settings, and displayed on the LCD screen, LCD screen, intuitive and clear, high reliability.
• using EEPROM cumulative flow meter factor power-down protection. Protection longer than 10 years.
Fourth, the main technical parameters:
• The flowmeter specifications, basic parameters and performance indicators
(Table II)
• Accuracy: 0.5, 1.0;
• Conditions of Use:
1, ambient temperature -20 ℃ ~ 50 ℃;
2, relative humidity: 5% to 95%;
3. measured medium temperature: -20 ℃ ~ 120 ℃;
4, atmospheric pressure: 86Kpa ~ 106Kpa;
5, explosion-proof grade: ibⅡBT4.
• Signal transmission distance: a sensor to monitor distances up to 1000m selection table.
ZRN-LWGY •
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Description
class
type
ZRN-LWGYA
Flow sensor pulse output three-wire, + 12V power supply;
ZRN-LWGYB
Site display type 3V battery-powered;
ZRN-LWGYC
Site display with 4 ~ 20mA or pulse output, + 24V power supply;
ZRN-LWGYD
Flow Transmitter 4 ~ 20mA output, + 24V power supply;
public
Say
through
path
4
Normal flow range
m3/h
0.04~0.25
Extended flow range
m3/h
0.04~0.4
6
0.1~0.6
0.06~0.6
10
0.2~1.2
0.15~1.5
15
0.6~6
0.4~8
20
0.8~8
0.45~9
25
1~10
0.5~10
32
1.5~15
0.75~15
40
2~20
1~20
50
4~40
2~40
65
7~70
3.5~70
80
10~100
5~100
100
20~200
10~200
125
25~250
12.5~250
150
30~300
15~300
200
80~800
40~800
Anti
burst
Without marking, non-explosion-proof
B
Explosion-proof
Accuracy
grade
A
Accuracy 0.2
B
Accuracy 0.5
C
Accuracy 1.0
turbine
Types of
A
Normal flow range
B
Extended flow range
Explanation:
DN4 ~ DN10 diameter threaded or welded, equipped with front straight pipe and filters, a maximum pressure of 6.3MPa.
DN15 ~ DN40 diameter sensor is threaded connection, the pressure is 2.5MPa.
DN50 ~ DN200 diameter sensor flange connection, pressure is 1.6Mpa.
DN15 ~ DN40 diameter Optional Front and rear with a straight pipe or union, carbon steel and stainless steel materials.
For DN15 ~ DN40 diameter flange connections, when ordering.
• high pressure type and special requirements when ordering.
Meter diameter and connections
46101520253240 threaded connection
(1520253240) 506580100125150200 flange connection
Accuracy class
±0.5%R
Turndown ratio
1: 10; 1: 15; 1: 20
Meter Materials
304, 316 (L) stainless steel
Measured medium temperature (℃)
-20~+120℃
Environmental conditions
Temperature -10 ~ + 55 ℃, relative humidity of 5% to 90%, atmospheric pressure 86 ~ 106Kpa
output signal
4-20mADC current signal (LWGY- • C type)
Power supply
LWGY- • B type: Built-in lithium battery (can be used continuously for 3 years); LWGY- • C type: + 24VDC
Signal transmission lines
2 * 0.3 (two-wire)
Transmission distance
≤1000m
Signal line interface
Internal thread M20 * 1.5 (LWGY- • C type)
Explosion levels
ExdIIBT6
Protection class
IP65
2. Measuring range and working pressure: Table 2
Meter diameter (mm)
Normal flow range (m3/h)
Extended flow range (m3/h)
Conventional withstand pressure (MPa)
Special voltage level (MPa) (flange connection)
DN 4
0.04~0.25
0.04~0.4
6.3
121625
DN 6
0.1~0.6
0.06~0.6
6.3
121625
DN 10
0.2~1.2
0.15~1.5
6.3
121625
DN 15
0.6~6
0.4~8
6.32.5 (flange)
4.06.3121625
DN 20
0.8~8
0.45~9
6.32.5 (flange)
4.06.3121625
DN 25
1~10
0.5~10
6.32.5 (flange)
4.06.3121625
DN 32
1.5~15
0.8~15
6.32.5 (flange)
4.06.3121625
DN 40
2~20
1~20
6.32.5 (flange)
4.06.3121625
DN 50
4~40
2~40
2.5
4.06.3121625
DN 65
7~70
4~70
2.5
4.06.3121625
DN 80
10~100
5~100
2.5
4.06.3121625
DN 100
20~200
10~200
2.5
4.06.3121625
DN 125
25~250
13~250
1.6
2.54.0
DN 150
30~300
15~300
1.6
2.54.0
DN 200
80~800
40~800
1.6
2.54.0