ZRN-LW-C Series turbine flowmeter

ZRN-LW-C Series turbine flowmeter
 

Product description:

Description: live show with output type
Medium temperature: (-20 ~ 80) ℃, (-20 ~ 120) ℃; ambient temperature: (-20 ~ 55) ℃;
Accuracy: 0.2 (specific), 0.5, 1; Repeatability: ± 0.2% of indicated value;
Display mode: single-row or double LCD live display instantaneous flow rate and total flow;
Output: 4 ~ 20mA or 1 ~ 5V two-wire current output (also pulse output);
Power supply: External supply + 24VDC;
Transmission distance: distance from the sensor to the display meter 500 m;
Body Material: 304 steel, 316 steel, 316L steel;
Impeller Material: 2Cr13 (nickel, titanium processing), PVC;
Bearing Material: carbide, ceramic (to be customized);
Connection: thread, flange, clamp flange, sanitary clamp interfaces;
Flange Standard: GB / T9112911391159117-2000 national standards;
Working pressure: 1.6 ~ 2.5MPa (25 ~ 42MPa high-pressure required custom processing);
Protection class: IP65; Explosion levels: ExdIICT5;
Product details:
I. Overview
ZRN-LW-C-type turbine flowmeter is ZRN-LW Series Turbine flowmeter The one. Which flowmeter The main parameters: Site display with 4 ~ 20mA or pulse output, + 24V power supply ; By turbine flow sensor and indicator composition, the factory using advanced foreign technology manufacturing, liquid metering is one of the best flowmeter flowmeter has a simple structure, high precision, easy installation and maintenance and so on. The Our products are widely used in petroleum, chemical, metallurgy, water, paper, environmental protection, food and other fields, for measuring the closed pipe and stainless steel 1Cr18Ni9Ti, 2Cr13 and corundum Al2O3, carbide not corrode, and no fibers, particles and other impurities liquid. If the display instrument using a special function that can be automated quantitative control, excessive alarm and other purposes.
Second, product characteristics:
1. Sensor for the push-carbide bearings stop, not only to ensure accuracy, and improve the wear resistance.
2. The structure is simple, secure and easy disassembly.
3. Measuring range, lower limit of the flow rate is low.
The pressure loss, good repeatability and high accuracy.
5. has a high resistance to electromagnetic interference and vibration resistance.
ZRN-LW •
• ••
Description
class
type
ZRN-LW-A
Flow sensor pulse output three-wire, + 12V power supply;
ZRN-LW-B
Site display type 3V battery-powered;
ZRN-LW-C
Site display with 4 ~ 20mA or pulse output, + 24V power supply;
ZRN-LW-D
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.
Third, the turbine flowmeter works:
Fluid flows through the sensor housing, since the flow impeller blade with a certain angle, the blade having a fluid momentum rotational torque to overcome the friction torque and fluid resistance after the blades rotate, the torque balance in the speed and stability, under certain conditions, and the flow rate is proportional to the rotational speed, since the blade has a magnetic permeability, which is in the signal detector (composed of a permanent magnet and coil) of the magnetic field, the magnetic lines cutting blade rotates, periodically changing magnetic flux of the coil so that the coil ends induced electrical
Pulse signal which is amplified shaping amplifier is formed with a certain level of continuous rectangular pulse wave, can be remote to the display instrument, showing the instantaneous flow rate and cumulative amount of fluid in a certain flow range, pulse frequency f and instantaneous flow rate Q of the fluid flowing through the sensor is proportional to the flow rate equation: Q = 3600 * f / k;
Where:
f-- pulse frequency [Hz];
k-- sensor meter factor [1 / m3], is given by the check list. In terms of [1 / L] units
Q-- instantaneous flow of fluid (operating condition) [m3 / h];
3600-- conversion factor.
Each sensor meter factor from the factory fill in the verification certificate, k value is set into supporting the display instrument, it can display the instantaneous flow rate and cumulative totals.
Four main technical performance:
1. Nominal Diameter: (4 ~ 200) mm basic parameters in Table I;
2. Medium temperature: (-20 ~ 80) ℃, (-20 ~ 120) ℃;
3. Ambient temperature: (-20 ~ 55) ℃;
4. Accuracy: ± 0.2%, ± 0.5%, ± 1%;
5. The detector signal transmission line system: three-wire voltage pulse (three-core shielded cable);
6. Power supply: Voltage: 12V ± 0.144V, current: ≤10mA;
7. The output voltage amplitude: High ≥8V, low ≤0.8V;
8. Transmission distance: distance from the sensor to the display meter up to 250 meters;
9. The field display type Power supply: 3V (lithium battery-powered, can be used continuously for 3 years);
10. Display: LCD site instantaneous flow and cumulative flow;
11. The scene shows the band signal output power supply: 24V; 4 ~ 20mA two-wire current output, remote distance of 500 meters.