Principe et structure
LUGB series vortex flowmeter is a flow meter that uses piezoelectric crystal as a detection element and outputs a standard signal proportional to the flow rate. The meter can be directly matched with the DDZ-Ⅲ instrument system, or it can be used with a computer and a distributed control system to measure the flow parameters of different media. The meter is based on the detection principle of fluid vortex street. The piezoelectric crystal for detecting vortex street does not contact the medium. The meter has the characteristics of simple structure, good versatility and high stability.
Caractéristiques du produit
1. High temperature resistance: The sensor measuring probe is encapsulated with a special process, and the high temperature resistance can reach 350℃
2. Strong versatility: Strong versatility, can measure unclean gases and liquids
3. Long service life: The sensitive element is sealed in the probe body, the detection element does not contact the measurement medium, and the service life is long
4. Compensation design: The sensor adopts compensation design to improve the seismic resistance of the instrument
5. Simple structure: Simple structure, no moving parts, high durability
6. Not affected by the medium: Within the specified Reynolds number range, the measurement is not affected by the temperature, pressure, and viscosity of the medium
7. Good safety: The flow meter can be used in explosion-proof occasions, with good safety
8. Wide range ratio: Wide range ratio, up to 10:1, 15:1
Paramètres techniques
| Température ambiante |
(-40～55)℃ |
| Relative humidity |
(5～90)% |
| Atmospheric pressure |
(86—106)Kpa |
| Diamètre nominal |
(15～1500)mm (insertion structure for greater than 200mm) |
| Measuring medium |
Liquid, gas, steam |
| Pression nominale |
1.6Mpa 2.5Mpa 4.0Mpa |
| Température moyenne |
(-40～+350)℃ |
| Précision |
0.5%FS, 1.0%FS, 1.5%FS, 2.5%FS |
| Linearity |
≤±1.5% |
| Repeatability |
≤0.5%, ≤1.0% |
| Signal de sortie |
Voltage pulse |
| (4～20)mA DC (two-wire) |
| Alimentation électrique |
Voltage pulse 12V DC or 24V DC |
| Current type 24V DC |
| Intelligent current type 24V DC |
| Intelligent battery type 3.6V DC |
| Load resistance |
Upper limit load resistance does not exceed 350Ω |
| Matériau du corps |
304 stainless steel |
| Méthode de connexion |
(15～300)mm Flange card-mounted structure |
| (200～1500)mm Plug-in structure |
| Niveau de protection |
IP65, IP67 |
| Cable interface |
PG10 |
| Type antidéflagrant |
Intrinsically safe type; Flameproof type |
| Marque antidéflagrante |
iaⅡCT6; dIIBT4 |
Structural dimensions
| Diamètre nominal |
Inner diameter |
Snap-on body |
| Length L |
Outer diameter D |
Overall height H |
| 15 |
15 |
50 |
88 |
335 |
| 20 |
20 |
50 |
88 |
335 |
| 25 |
25 |
50 |
88 |
335 |
| 32 |
32 |
50 |
88 |
335 |
| 40 |
39 |
50 |
88 |
335 |
| 50 |
49 |
70 |
88 |
335 |
| 65 |
64 |
70 |
105 |
345 |
| 80 |
79 |
80 |
117 |
365 |
| 100 |
99 |
80 |
140 |
382 |
| 125 |
125 |
70 |
168 |
395 |
| 150 |
149 |
70 |
190 |
425 |
| 200 |
207 |
|
|
|
| 250 |
259 |
|
|
|
| 300 |
309 |
|
|
|
Installation structure diagram
Installation structure diagram of insertion flow meter
Flange card-mounted flowmeter installation structure diagram
Application du scénario
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