Introduction of Mass Flow Meter
Mass Flow Meter consist of Mass Flow Sensor and Mass Flow Transmitter. It does not measure the volume per unit time (e.g., cubic meters per second) passing through the device, but measures the mass per unit time (e.g., kilograms per second) flowing through the device. The result of volumetric meter varies with temperature, pressure, composition, etc., but mass flow meter does not have such problem.
Operating principle of mass flow meter
Mass flow meter is designed according to Coriolis Effect. The inlet arm and the outlet arm vibrate with the same frequency as the overall vibration, but when there is mass flow the two vibrations are out of sync: the inlet arm is behind, the outlet arm is ahead. The two vibrations are shifted in phase with respect to each other, and the degree of phase-shift is a measure for the amount of mass that is flowing through the tubes.
Sealand CG-06 mass flow meter
Sealand CG-25 Liquified Natural Gas meters are specifically designed for the LNG/CNG/LPG fuel dispensing industry to meet the challenges of measuring liquified natural gas. With worldwide installations, the CG-25 is the preferred meter of the leading LNG/CNG/LPG dispensing equipment manufacturers.
Feartures:
*Reduced fill time with higher flow rate capacity
*Compact design with no moving parts, no special mounting and no flow conditioning required
*Fast delivery and global support
Pictures of mass flow meter
Specifications of mass flow sensor
| Specifications of mass flow sensor |
| Gas accuracy | ±0.5% |
| Liquid accuracy | ±0.2% |
| Temp. accuracy | ±1°C |
| Loss of pressure | ≤0.2MPa |
| MWP | 4MPa |
| Temp. rating | -50°C~+200°C |
| Connector | DN25 flange(1 inch), customizable |
| Ex-proof grade | Ex[ib]IIBT1~T6 Gb / Ex[ib]IICT1~T6 Gb |
Specifications of mass flow transmitter
| Specifications of mass flow transmitter |
| Temp. rating | -20°C~+50°C |
| RH | ≤95%, not condensed |
| Atmospheric Pressure | 86~106 kPa |
| Operating voltage | AC220V/50Hz, DC24/50Hz |
| Communication port | RS485 Modbus RTU |
| Ex-proof grade | Exd[ib]IIBT4Gb |
Specifications of mass flow meter
| Specifications of mass flow meter |
| Model No. | CG-25 |
| Mass accuracy grade | 0.2 |
| Temperature accuracy | ±1°C |
| Zero stability | 0.017kg/min |
| Repeatability | 0.25% |
| Max. flowrate | 200kg/min |
| Nominal diameter | 25mm( 1 inch) |
| Fluid temperature | -200~200°C |
| Material of tube | Stainless steel 316L |
| Packing | 1set/carton or wooden case |
| Warranty | 2 years |
| Package size | 690*670*410mm |
| G.W. | 24.77kgs |
Installation of mass flow meter
It is highly recommended to install as follows, for different fluid.
Production process of mass flow meter
1. Bend vibrating tubes with bending machine
2. Smear the solder on the production line
3. Solder the tubes in the Vacuum brazing furnace
5. Test for the 1st time
6. Burn-in: Mass Flowmeter will be excercised for 15 days prior to being placed in service.
7. Test for the 2nd time (at the same production line of step 5)
8. Cover the tubes with housing & polish the surface (at the same production line of step 2)
9. Test for the 3rd time(final test; this test equipment is approved by China government, and is the
TEST STANDARD of mass flowmeter in China)
Bulk order of mass flow meter
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