FV-225-P渦街流量計(jì)流量傳感器 美國OMEGA FV-225-P渦街流量計(jì)流量儀表詳細(xì)介紹

FV-225-P渦街流量計(jì)

流量與液位 ? 渦街流量計(jì)和皮托管 ? 工業(yè)渦街流量計(jì) ? FV-200 Series
適用于腐蝕性液體的全塑料渦街流量計(jì)
FV-200 Series

No Moving Parts
Corrosion Resistant
6 to 51 mm (1.4 to 2") Sizes
High Temperature Option Available
NIST Certificate Standard
Learn more with our informational page about the definition of vortex flow meters and its principles.

產(chǎn)品描述
The FV-200 Series meter utilizes vortex-shedding technology to provide a repeatable flow measurement accurate to 1% of full scale. The meter has no moving parts, and any potential for fluid contamination is eliminated by the meter's corrosion-resistant all plastic construction. The meter includes a compact 2-wire (4 to 20 mA) or 3-wire pulse transmitter (optional), contained within a conveniently replaceable plug-in electronics module. All electronics are housed in a corrosion-resistant enclosure. Unlike meters containing l or moving parts, the FV-200 is perfect for aggressive or easily contaminated fluids. Applications range from ultra-pure water to highly corrosive chemicals and slurries.

Pressure—Temperature Rating
Maximum
Fluid
Temperature Maximum
Operating Pressure
bar (psig)
°C (°F) PVC CPVC
95 (203)* NR 1.6 (24)
66 (150) NR 4.3 (63)
38 (100) 6.4 (93) 8.3 (120)
21 (70) 10.3 (150) 10.3 (150)
*(-HT) models only
Operation of the FV-200 vortex flow meter is d on the vortex shedding principle. As fluid moves around a body, vortices (eddies) are formed and move downstream. They form alternately, from one side to the other, causing pressure fluctuations. These are sensed by a piezoelectric crystal in the sensor tube, and are converted to a 4 to 20 mA, or pulse signal. The frequency of the vortices is directly proportional to the flow rate. This results in extremely accurate and repeatable measurements using no moving parts.

Another advantage of utilizing a FV-200 vortex flow meter is that there are no gaskets or elastomers in the meter. Therefore, one need only be concerned with the thermoplastic material used in body construction. In a thermoplastic piping system, the material chosen for the flow meter should match that of the pipe wherever possible.

Many factors may affect the capability of a meter to measure the flow of specific fluids accurately. Different solutions have varying effects on meters. For instance, heavy particle suspension will wear down internal parts on some meters or cause sensing inaccuracies for non-obtrusive metering systems. For vortex flow meters, high viscosities tend to dampen the formation of vortices and reduce the effective range. Particles and internal bubbles do not usually affect vortex meters. Slurries containing grit can wear down the bluff body over a period of time. Also, long fibers can catch and build up on the bluff, decreasing accuracy. Standard factory calibration is for tap water at 32 SSU (1 cSt) viscosity and ambient temperature. Viscosity above 1 cSt will raise the minimum readable flow rate, reducing rangeability. The effect is linear to viscosity. No adjustments are required for specific gravities up to 2.0. Liquids with high specific gravities will adversely affect the permissible amount and duration of over range flow.

SPECIFICATIONS
Measured: Liquids
Connection: ? to 2 NPT thread
Wetted Material: PVC, CPVC, or PVDF depending on model number
Turndown Ratio: 12.1 (except ?" meter size; 8.1)
Accuracy: ±1% of full scale, 4 to 20 mA or ±2% of full scale, frequency pulse ("-P" option)
Repeatability: ±0.25% actual flow
Output Signal: 4 to 20 mA or frequency pulse (source-sink driver; 1A source/ 1.5A sink; typical output resistance 10Ω)
Power Supply: 13 to 30 Vdc
Enclosure: NEMA 4X (IP 66)
Response Time: 2 seconds minimum, step change in flow

注: Comes complete with 5-point NIST certificate and operator's manual.

產(chǎn)品編號(hào) 產(chǎn)品描述

VORTEX FLOWMETERS WITH PVC CONSTRUCTION

FV-211 0.6 to 5 gpm range, ? NPT
FV-212 1.3 to 15 gpm range, ? NPT
FV-213 2.1 to 25 gpm range, ? NPT
FV-214 4.2 to 50 gpm range, 1 NPT
FV-215 8.3 to 100 gpm range, 1? NPT
FV-216 16.7 to 200 gpm range, 2 NPT

VORTEX FLOWMETERS WITH CPVC CONSTRUCTION

FV-221 0.6 to 5 gpm range, ? NPT
FV-222 1.3 to 15 gpm range, ? NPT
FV-223 2.1 to 25 gpm range, ? NPT
FV-224 4.2 to 50 gpm range, 1 NPT
FV-225 8.3 to 100 gpm range, 1? NPT
FV-226 16.7 to 200 gpm range, 2 NPT

VORTEX METERS WITH PVDF CONSTRUCTION

FV-231 0.6 to 5 gpm range, ? NPT
FV-232 1.3 to 15 gpm range, ? NPT
FV-233 2.1 to 25 gpm range, ? NPT
FV-234 4.2 to 50 gpm range, 1 NPT
FV-235 8.3 to 100 gpm range, 1? NPT
FV-236 16.7 to 200 gpm range, 2 NPT

VORTEX FLOWMETERS WITH PVC CONSTRUCTION AND PULSE OUTPUT

FV-211-P 0.6 to 5 gpm range, ? NPT, pulse output
FV-212-P 1.3 to 15 gpm range, ? NPT, pulse output
FV-213-P 2.1 to 25 gpm range, ? NPT, pulse output
FV-214-P 4.2 to 50 gpm range, 1 NPT, pulse output
FV-215-P 8.3 to 100 gpm range, 1? NPT, pulse output
FV-216-P 16.7 to 200 gpm range, 2 NPT, pulse output

VORTEX FLOWMETERS WITH CPVC CONSTRUCTION AND PULSE OUTPUT

FV-221-P 0.6 to 5 gpm range, ? NPT, pulse output
FV-222-P 1.3 to 15 gpm range, ? NPT, pulse output
FV-223-P 2.1 to 25 gpm range, ? NPT, pulse output
FV-224-P 4.2 to 50 gpm range, 1 NPT, pulse output
FV-225-P 8.3 to 100 gpm range, 1? NPT, pulse output
FV-226-P 16.7 to 200 gpm range, 2 NPT, pulse output

VORTEX FLOWMETERS WITH PVDF CONSTRUCTION AND PULSE OUTPUT

FV-231-P 0.6 to 5 gpm range, ? NPT, pulse output
FV-232-P 1.3 to 15 gpm range, ? NPT, pulse output
FV-233-P 2.1 to 25 gpm range, ? NPT, pulse output
FV-234-P 4.2 to 50 gpm range, 1 NPT, pulse output
FV-235-P 8.3 to 100 gpm range, 1? NPT, pulse output
FV-236-P 16.7 to 200 gpm range, 2 NPT, pulse output

HIGH TEMPERATURE VORTEX FLOWMETERS WITH CPVC CONSTRUCTION

FV-221-HT 0.6 to 5 gpm range, ? NPT
FV-222-HT 1.3 to 15 gpm range, ? NPT
FV-223-HT 2.1 to 25 gpm range, ? NPT
FV-224-HT 4.2 to 50 gpm range, 1 NPT
FV-225-HT 8.3 to 100 gpm range, 1? NPT
FV-226-HT 16.7 to 200 gpm range, 2 NPT

HIGH TEMPERATURE VORTEX FLOWMETERS WITH PVDF CONSTRUCTION

FV-231-HT 0.6 to 5 gpm range, ? NPT
FV-232-HT 1.3 to 15 gpm range, ? NPT
FV-233-HT 2.1 to 25 gpm range, ? NPT
FV-234-HT 4.2 to 50 gpm range, 1 NPT
FV-235-HT 8.3 to 100 gpm range, 1? NPT
FV-236-HT 16.7 to 200 gpm range, 2 NPT


HIGH TEMPERATURE VORTEX FLOWMETERS WITH CPVC CONSTRUCTION AND PULSE OUTPUT

FV-221-P-HT 0.6 to 5 gpm range, ? NPT
FV-222-P-HT 1.3 to 15 gpm range, ? NPT
FV-223-P-HT 2.1 to 25 gpm range, ? NPT
FV-224-P-HT 4.2 to 50 gpm range, 1 NPT
FV-225-P-HT 8.3 to 100 gpm range, 1? NPT
FV-226-P-HT 16.7 to 200 gpm range, 2 NPT


HIGH TEMPERATURE VORTEX FLOWMETERS WITH PVDF CONSTRUCTION AND PULSE OUTPUT

FV-231-P-HT 0.6 to 5 gpm range, ? NPT
FV-232-P-HT 1.3 to 15 gpm range, ? NPT
FV-233-P-HT 2.1 to 25 gpm range, ? NPT
FV-234-P-HT 4.2 to 50 gpm range, 1 NPT
FV-235-P-HT 8.3 to 100 gpm range, 1? NPT
FV-236-P-HT 16.7 to 200 gpm range, 2 NPT

產(chǎn)品型號(hào)
FV-211
FV-211-P
FV-212
FV-212-P
FV-213
FV-213-P
FV-214
FV-214-P
FV-215
FV-215-P
FV-216
FV-216-P
FV-221
FV-221-HT
FV-221-P
FV-221-P-HT
FV-222
FV-222-HT
FV-222-P
FV-222-P-HT
FV-223
FV-223-HT
FV-223-P
FV-223-P-HT
FV-224
FV-224-HT
FV-224-P
FV-224-P-HT
FV-225
FV-225-HT
FV-225-P
FV-225-P-HT
FV-226
FV-226-HT
FV-226-P
FV-226-P-HT
FV-231
FV-231-HT
FV-231-P
FV-231-P-HT
FV-232
FV-232-HT
FV-232-P
FV-232-P-HT
FV-233
FV-233-HT
FV-233-P
FV-233-P-HT
FV-234
FV-234-HT
FV-234-P
FV-234-P-HT
FV-235
FV-235-HT
FV-235-P
FV-235-P-HT
FV-236
FV-236-HT
FV-236-P
FV-236-P-HT

FV-225-P渦街流量計(jì)

FV-225-P渦街流量計(jì)流量傳感器 美國OMEGA FV-225-P渦街流量計(jì)流量儀表

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