Low Flow Coriolis Mass Flow Meters for Liquid and Gases
The mini CORI-FLOW? Mass Flow Meters and Controllers are precise and compact instruments based on the Coriolis measuring principle. They are designed to meet the needs of the low flow market. The Bronkhorst? model ML120V00 Mass Flow Meter (MFM) is suitable for highly accurate measurement of gas or liquid flow in the range of 0…200 g/h (which corresponds to 0…2.66 ln/min when used on nitrogen) at operating pressures up to 200 bar.
The flow meter offers “multi-range” functionality, allowing the user to rescale the factory-calibrated ranges while maintaining the original accuracy specifications. The instrument contains a microprocessor-based PC-board with signal and fieldbus conversion.
Technical specifications
| Measurement / control system | |
|---|---|
| Flow rates | Liquid: 0…200 g/h (nominal flow rate: 100 g/h); Gas: 0…2.66 ln/min (N2); Full Scale (FS) value is user-configurable |
| Mass flow accuracy | Liquid: ±0,2% Rd; Gas: ±0,5% Rd |
| Repeatability | ±?0,05?%?of rate ± ?(ZS* x 100/actual flow)% |
| Turndown ratio | up to 1:4000 |
| Zero stability (ZS) | < ±?10?mg/h (Guaranteed at constant temperature and for unchanging process and environment conditions.) |
| Response time (sensor) | ≤?200?msec |
| Temperature effect | on zero: < 3 mg/h/°C; on span: < 0,005% Rd/°C; self heating (at zero flow): < 10°C (Depends on flow rate, heat capacity fluid, T amb., T fluid and cooling capacity.) |
| Operating temperature | 0?… 70?°C |
| Mounting | any position, attitude sensitivity negligible. Instrument to be rigidly bolted to a stiff and heavy mass or construction for guaranteed zero stability. External shocks or vibrations should be avoided. |
| Temperature accuracy | ±?0,5?°C |
| Density accuracy | < ±?5?kg/m??(at full scale flow) |
| Leak integrity, outboard | tested < 2 x 10-9?mbar l/s He |
| Warm-up time | >?30 min.?for optimum accuracy |
| Mechanical parts | |
|---|---|
| Material (wetted parts) | stainless steel 316L or comparable |
| Pressure rating (PN) | 200?bar abs |
| Process connections | compression type or face seal (VCR/VCO) couplings |
| Seals | metal |
| Weight | 0,8?kg |
| Ingress protection | IP40 |
| Electrical properties | |
|---|---|
| Power supply | +15…24 Vdc +/- 10% Max. ripple recommended: 50 mV tt |
| Max. power consumption | max. 2,5 W |
| Analog output | 0…5 (10) Vdc, min. load impedance > 2 k?; 0 (4)…20 mA (sourcing), max. load impedance < 375 ? |
| Digital communication | standard: RS232; options: PROFIBUS DP, CANopen?, DeviceNet?, PROFINET, EtherCAT?, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK, FLOW-BUS |
| Electrical connection | |
|---|---|
| Analog/RS232 | 9-pin D-connector (male); |
| PROFIBUS DP | bus: 9-pin D-connector (female); power: 9-pin D-connector (male); |
| CANopen? / DeviceNet? | 5-pin M12-connector (male); |
| FLOW-BUS/Modbus-RTU/ASCII | RJ45 modular jack; |
| Modbus TCP / EtherNet/IP / POWERLINK | 2 x RJ45 modular jack (in/out); |
| EtherCAT?/ PROFINET | 2 x RJ45 modular jack (in/out); |
Technical specifications subject to change without notice.
Downloads
| Brochures | |
|---|---|
| mini CORI-FLOW ML120 brochure | |
| Manuals | |
|---|---|
| MINI CORI-FLOW ML120 manual | |
| MINI CORI-FLOW ML120 Quick Start Guide | |
| Hook-up diagrams | |
|---|---|
| Analog I-O RS232 | |
| DeviceNet | |
| EtherCAT | |
| FLOW-BUS | |
| Modbus RTU/ASCII | |
| PROFIBUS DP | |
| PROFINET | |
| CANopen | |
| EtherNet/IP | |
| Modbus-TCP | |
| Optional Bus and IO Configurations | |
| Dimensional drawing | |
|---|---|
| Dimensional drawing ML120 | |
| Solids 3D | |
|---|---|
| ML120Vxx 1-16 compr.type | |
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