Multivariable VFM60MV –
Vortex Steam Flow Meter
COMATE VFM60MV multivariable vortex meter are designed to measure mass flow for saturated and superheated steam without the need for an external standings. With advanced SSP signal processing and unique sensor technology, VFM60MV can provides more stable measurement results in like vibration conditions and low flow.
Vortex type steam flow meter advantages
- Built-in temperature & pressure compensation transmitter
- Patent dual probe design excellent anti-vibration performance
- Measurement limit down to 2m/s, 1:35 wide turndown ratio(external for 1:40)
- Compact design integrated display support high range up to 350°C
- A multi-functional vortex meter can for steam, air, gas and liquid
Application
- Saturated steam, superheated steam monitoring & custody transfer
- Dry, wet compressed air inlet/outlet of the compressor monitoring
- Gas drainage in coal mines
- Measurement Nature gas, biogas process control, and custody transfer
- Measurement of conductive and non-conductive liquids
COMATE-Bluetooth software enables users remote access to COMATE all line flowmeters by wireless Bluetooth connection. Users can read and adjust the flowmeter’s settings simply by accessing their cell phone, tablet or any Bluetooth enabled device.Remote-diagnosis and program update support.
Direct Mass Flow Measurement for Saturated Steam/Superheated Steam
The purpose of vortex steam meter with temperature and pressure compensation is for when the volume deviates the actual flow, density compensation will correct the result well. Steam in gas status, the density varies with the changes of temperature and pressure itself. If don’t have the compensation will cause a huge error. Vortex mass flow meter is the perfect skill in steam flow measurement.
Comate VFM60MV Series Multivariable vortex steam flow meter incorporates Comate start-of-art technologies. This type of multi variable steam mass meter makes highly accurate measurements of various fluids including liquid, air, gas, saturated steam, and superheated steam. Support high temperature up to 350°C(662°F) in particular and can measure very low flow.
State-of-the-Art Vortex Flow Sensing
By help of three built-in sensors, a vortex shedding flow velocity, a pressure transmitter, and a temperature sensor, VFM60MV series vortex meter can more accurately measure the mass flow and standard flow of processing gases and stemas though density compensation.
Simple installation on wafer and flanged connection
VFM60MV multivariable vortex steam flow meter
- Extremely high sensitivity, minimum flow rate down to 2m/s with 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
- One vortex flowmeters can measure mass flow, temperature, pressure, and density
VFM60MV high temperature(350°C/662°F) version
Bluetooth software support
This function enables users who have COMATE flow meter in site to reach and configure the parameters more easily rather than lose the case and check the manual on how to set it. Most important is COMATE R&D team will help you to do this job just get the device online and click online diagnosis, our team-member will collect the data and help you to check where the problems may come from!
•Bluetooth app on a cellphone to connect Comate flowmeters
•Home interface can review real-time readings on the meter screen
•Setting interface help to do function setting & parameter setting
Support
•select output to pulse/4~20mA/frequency,
•select 4~20mA output parameters
•select unit of time/temperature/pressure/flow rate,etc
•input range of 4~20mA/pressure/temperature, etc
•Remote diagnosis function
Measurement range of VFM60MV vortex steam flow meter
| Medium | Min velocity | Max velocity |
| Gas | 6m/s for DN15, DN20 | 60m/s (196.9 ft/s) |
| (19.7 ft/s) for 0.5″ and 0.75″ | ||
| 4m/s, DN25、DN32 | ||
| (13.1 ft/s) for 1″ and 1.25″ | ||
| 2m/s, DN40 ~ DN300 | ||
| (6.7 ft/s) for 1.5″ ~ 1.2″ | ||
| Steam | 6m/s for DN15, DN20 | 70m/s (229.7 ft/s) |
| (19.7 ft/s) for 0.5″ and 0.75″ | ||
| 4m/s, DN25、DN32 | ||
| (13.1 ft/s) for 1″ and 1.25″ | ||
| 2m/s, DN40 ~ DN300 | ||
| (6.7 ft/s) for 1.5″ ~ 1.2″ | ||
| Liquid | 0.3m/s (1 ft/s) | 7m/s (23 ft/s) |
Specification of VFM60 series vortex flow meter
| Process connection |
Flange | DN15~DN300 or 0.5 inch to 12 inch |
| Wafer | DN15~DN300 or 0.5 inch to 12 inch | |
| Medium temperature |
Standard | -40 ~ 150 ℃ or -40 ~ 302 ℉ |
| Medium | -40 ~ 250 ℃ or -40 ~ 482 ℉ | |
| High | -40 ~ 350 ℃ or -40 ~ 662 ℉ | |
| Power supply |
4~20mA 2 wise system | 13.5 ~ 42V |
| VFM60MV with 4~20mA (2 wire ) | 15.5 ~ 42V | |
| Modbus RTU | Current Iq < 9mA 13.4 ~ 42V | |
| Reynolds and accuracy |
Gas/steam (m³/h) | ±1%RD（Re ≥ 20000） |
| ±2%RD（10000 < Re < 20000） | ||
| Liquid (m³/h) | ±0.75%RD（Re ≥ 20000） | |
| ±2%RD（10000 < Re < 20000） | ||
| Gas/steam (m³/h) | ±1.5%RD（Re ≥ 20000） | |
| ±2.5%RD（10000 < Re < 20000） | ||
| Turndown ratio |
Gas | 1:30 |
| Steam | 1:35 | |
| Liquid | 1:22 | |
| Repeatability | Volume flow | ±0.3% |
| Mass flow | ±0.3% | |
| Temperature | ±0.05 ℃ | |
| Pressure | ±0.05%FS |
| Upstream/Downstream requires | 15 x D / 5 x D | |
| Details please check | ||
| Viscosity allowance | DN15 or 0.5 inch ≤ 4mPas | |
| DN25 or 1 inch ≤ 5mPas | ||
| DN40~DN300 or 1.5~12 inch ≤ 7mPas | ||
| Anti-vibration (both punch and fixed freq) | 0.5g | |
| Display | LCD displayer | |
| Saturated /superheated steam measurement | Support HART |
|
| Natural gas/Biogas, ect | HART(V5、V7)/ Modbus-RTU/ Pulse | |
| Communication | HART(V5、V7)/ Modbus-RTU/ Pulse | |
| Explosive proof | NEPSI Ex d II c T3 Gb | |
| 1 | General model | VFM60-MV | Vortex mass flowmeter with integral RTD and pressure sensor | Standard |
| VFM60-N | Vortex flowmeter without integral RTD and pressure sensor | Option | ||
| 2 | Fluid type | 1 | Liquid | Option |
| 2 | Gas | Standard | ||
| 3 | Steam | Option | ||
| 3 | Process connection | IN | Insertion (only for DN300~ DN1000 or 12 inch~ 40 inch ) | Option |
| WC | Wafer with carbon steel flanges up to 16 barG (232 psiG) (DN15~DN300) | Standard | ||
| WF | Wafer with stainless steel flanges up to 16 barG (232 psiG) (DN15~DN300) | Option | ||
| D1 | Flanged DIN PN16 up to 16 barG (232 psiG) (DN15~DN300) | Option | ||
| D2 | Flanged DIN PN25 up to 25 barG (362 psiG) (DN15~DN300) | Option | ||
| D3 | Flanged DIN PN40 up to 40 barG (580 psiG) (DN15~DN300) | Option | ||
| D4 | Flanged DIN PN63 up to 63 barG (913 psiG) (DN15~DN300) | Option | ||
| C1 | Flanged ANSI CL150 up to 16 barG (232 psiG) (0.5 inch~12 inch) | Option | ||
| C2 | Flanged ANSI CL300 up to 40 barG (580 psiG) (0.5 inch~12 inch) | Option | ||
| C3 | Flanged ANSI CL400 up to 63 barG (913 psiG) (0.5 inch~12 inch) | Option | ||
| J1 | JIS 10K up to 16 barG (232 psiG) (DN15~DN300) | Option | ||
| J2 | JIS 20K up to 40 barG (580 psiG) (DN15~DN300) | Option | ||
| J3 | JIS 30K up to 63 barG (913 psiG) (DN15~DN300) | Option | ||
| 4 | Wetted part material | 1 | OCr18Ni9(304) | Standard |
| 2 | 316 | Option | ||
| Q | Other | Option | ||
| 5 | Degreased | N | Wet part not degreased | Standard |
| D | Wet part degreased for Oxygen measurement | Option | ||
| 6 | Medium Temperature | N | T≤150℃ | Standard |
| S | T≤250℃(wafer or flanged) | Option | ||
| H | T≤350℃ (wafer or flanged) | Option | ||
| 7 | Transmitter | ML1 | Integral transmitter , multi-variable ,bluetooth, RS485, pulse, | Standard |
| ML2 | Integral transmitter , multi-variable ,bluetooth, pulse, 4 wire 4~20mA | Option | ||
| ML3 | Integral transmitter , multi-variable ,bluetooth, RS485, pulse, 4 wire 4~20mA | Option | ||
| ML4 | Integral transmitter , multi-variable ,bluetooth, pulse, 4 wire HART@4~20mA | Option | ||
| ML5 | Integral transmitter , multi-variable , pulse, 2 wire 4~20mA | Option | ||
| ML6 | Integral transmitter , multi-variable , pulse, 2 wire HART@4~20mA | Option | ||
| MR1 | Remote transmitter (dual display) , multi-variable ,bluetooth, RS485, pulse, | Option | ||
| MR2 | Remote transmitter (dual display) , multi-variable ,bluetooth, RS485, pulse, 4 wire 4~20mA | Option | ||
| NL1 | Integral transmitter , bluetooth, RS485, pulse, | Option | ||
| NL3 | Integral transmitter , bluetooth, RS485, pulse, 4 wire 4~20mA | Option | ||
| NL4 | Integral transmitter , bluetooth, pulse, 4 wire HART@4~20mA | Option | ||
| NL6 | Integral transmitter , pulse, 2 wire HART@4~20mA | Option | ||
| NR1 | Remote transmitter (dual display) , bluetooth, RS485, pulse, | Option | ||
| NR2 | Remote transmitter (single display) , bluetooth, pulse, 4 wire 4~20mA | Option | ||
| NR3 | Remote transmitter (dual display) , bluetooth, RS485, pulse, 4 wire 4~20mA | Option | ||
| NR4 | Remote transmitter (single display) , bluetooth, pulse, 4 wire HART@4~20mA | Option | ||
| NR6 | Remote transmitter (single display) , pulse, 2 wire HART@4~20mA | Option | ||
| 8 | Cable grinder | M | M20x1.5 | Standard |
| N | NPT 1/2 | Option | ||
| 9 | Ex-proof | N | No Ex-proof | Standard |
| 1 | NEPSI Ex d IIC T3 Gb | Option | ||
| 10 | Pipe size | 015 | DN15 or 0.5 inch | |
| 020 | DN20 or 0.75 inch | |||
| 025 | DN25 or 1 inch | |||
| 032 | DN32 or 1.25 inch | |||
| 040 | DN40 or 15 inch | |||
| 050 | DN50 or 2 inch | |||
| 065 | DN65 or 2.5 inch | |||
| 080 | DN80 or 3 inch | |||
| 100 | DN100 or 4 inch | |||
| 125 | DN125 or 5 inch | |||
| 150 | DN150 or 6 inch | |||
| 200 | DN200 or 8 inch | |||
| 250 | DN250 or 10 inch | |||
| 300 | DN300 or 12 inch |
Vortex flow meter work principle is to researching the corresponding relationship between fluid vibration frequency and flow velocity. It measures the flow velocity of fluid by measuring the frequency of the 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.
Comate understood Vibration then build a new equipment to measure it. Early in 2015, Comate have cooperated 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