VFM60N Standard Type Digital Vortex Flowmeter is a powerful flow meter utilizing “Karman vortex” theory, which can meet the requirement of measuring the flow rate of various fluids such as gas, steam and liquid.The unique dual-sensor design and special signal processing method has also ensured a better anti-vibration by eliminating the vibration signals to provide more reliable performance and lower measurement limit.
Advantage at a glance:
- 1:35 super wide turndown ration
- Extremely high sensitivity, measurement limit to 2m/s
- Patent dual-sensor design and optimized signal processing technology to ensure excellent anti-vibration
VFM60N Standard Type Digital Vortex Flowmeter:
Extremely high sensitivity, minimum flow rate down to 2m/s
1:35 super wide turndown ratio
Patent dual-sensor design and optimized signal processing technology to ensure best anti-vibration
No moving parts, very small pressure loss
Isolated design for electrical parts to eliminate interference
Wide power source adaptability to fit in different applications
2 lines LCD display
Standard output is pulse and 4~20 mA, Hart@4~20mA and RS485 is available
Metric/British Unit selectable
Density compensation function available, do not need flow computer for mass flow
Password protecting function and self-diagnose function
Traditional vortex technologies are easily effected by vibration. In order to provide stable result, they can only cut off some useful signal mixed with vibration signal and flow signal
VFM60 vortex meter can distinguish the vibration signal from the flow signal, and eliminate the interference. So it can provide stable reading under vibration even the flow is down to 2m/s.
| Fliud to measure | Liquid, steam, gas | |||
| Nominal diameter | Wafer/Flanged(ANSI/DN/DIN/JIS):15mm~300mm(1/2″~12″) | |||
| Insertion:300mm~700mm(12″~28″) | ||||
| Measurement range（m/s） | DN15~20 | DN25~32 | DN40~300 | |
| Steam | 6~70 m/s | 4~70 m/s | 2~70 m/s | |
| Gas | 6~60 m/s | 4~60 m/s | 2~60 m/s | |
| Liquid | 0.3~7m/s | 0.3~7m/s | 0.3~7m/s | |
| Accuracy | ±1% RD (insertion is 1.5%RD) | |||
| For multi-variable version: temperature ±1°C,pressure:0.75% FS | ||||
| Repeatability | 0.3% RD | |||
| Output | Pulse / 4~20mA / 4-20mA@ HART / RS-485 | |||
| Process Temperature Range | -40℃~150℃ ; -40℃~250℃ ; -40℃~350℃ ; | |||
| Process Pressure Limit | –0.1 MPa (–1 kg/cm2) to flange rating | |||
| Ambient Temperature Range | –40 to 85°C | |||
| Ambient Humidity | 5 to 100% RH | |||
| Electrical Connection | 1/2 NPT, M20 × 1.5 | |||
| Materials | 304 SS, 316 SS, 316L SS | |||
| Mode codes | VFM60 series digital vortex flowmeters | ||||
| 1 | General model | VFM60-N | Vortex flowmeter without integral RTD and pressure sensor | Standard | |
| VFM60-MV | Vortex mass flowmeter with integral RTD and pressure sensor | Option | |||
| 2 | Transmitter Location | T | Integral | Standard | Standard remote cable length is 5m, for longer cable, please let us know |
| R | Remote | Option | |||
| 3 | Process connection | 0 | Insertion | Option | Insertion for DN200~1000, wafer and flanged type for pipes smaller than 300mm |
| 1 | Flanged | Standard | |||
| 2 | Wafer | Option | |||
| 3 | Downsized wafer | Option | |||
| 4 | Fluid type | 1 | Liquid | Standard | If the fluid is steam, please advise if it is saturated or superheated |
| 2 | Gas | Option | |||
| 3 | Steam | Option | |||
| 5 | Wetted part material | 1 | OCr18Ni9(304) | Standard | For other materials, please advise your requirement. |
| 2 | 316 | Option | |||
| Q | Other | Option | |||
| 6 | Pressure rating | 3 | 1.6 Mpa | Standard | |
| 4 | 2.5 Mpa | Option | |||
| 5 | 4 Mpa | Option | |||
| 6 | 6.3 Mpa | Option | |||
| 7 | Medium Temperature | N | T≤150℃ | Standard | If temperature is lower than 40 dgr C, please check with us. MV version max temperature is 250 dgr C |
| S | T≤250℃(wafer or flanged) | Option | |||
| H | T≤350℃ (wafer or flanged) | Option | |||
| 8 | Transmitter | 1 | pulse/4~20mA | Standard | The HART signal is output though 4~20mA
MV stand for multi-variable version Option 2,4,6,8,9 require one week more for production |
| 2 | pulse/HART@4~20mA | Option | |||
| 3 | Pulse/RS485 | Option | |||
| 4 | pulse/ 4~20mA/RS485 | Option | |||
| 5 | MV/pulse/4~20mA | Option | |||
| 6 | MV/pulse/HART@4~20mA | Option | |||
| 7 | MV/Pulse/RS485 | Option | |||
| 8 | MV/pulse/ 4~20mA/RS485 | Option | |||
| 9 | pulse/4~20mA/RS485/separate T&P | Option | |||
| 9 | Blue tooth | Q | No Blue tooth | Standard | If need blue tooth, has to has RS485 |
| B | With blue tooth | Option | |||
| 10 | Cable grinder | N | M20x1.5 | Standard | |
| Q | Other | Option | |||
| Pipe size | xxx | xxx | This 3 digits code indicates the inner diameter of the pipe, for example, 050 means DN50, | ||
Vortex flow meter Work principle is to rearching the corresponding relationship between fluid vibration frequency and flow velocity. It measures the flow velocity of fluid by measuring the frequency of sensor output signal. That leaves many vortex meter manuafacturet faced the prolems of vibration, electromagnetic interference and the lower limit of measurement in the development and application of vortex type flowmeter.
Early in 2015, Comate have cooperate with USTC signal processing laboratory and put an unique design method in order to detect the real change of electric charge completely generated by fluids. After that Comate put VFM60MV in factory like compressed air, boiler steam, heating system nad owned a good feedback. The interference solved also makes Comate vortex meter able to measure down to 2m/s velocity than other brand in the marketplace.
To view Comate Multivariable Digital Vortex Type Flowmeters anti-vibration contrast test
Nowadays, Comate bring you a more comfortable after-sale experience
when the plant is very far away from your office and your engineer are occupied by other business, how to solve customers complain faster and ontime? Comate offer you this remote support package service, each meter hv a”housekeeper”.
