mini CORI-FLOW™ Mass Flow Meters and Controllers are precise and compact instruments, based on the Coriolis measuring principle, designed to cover the needs of the low flow market. Bronkhorst® model M13 Mass Flow Meter (MFM) is suited for highly accurate measurement of gas or liquid flow ranges between 1…50 g/h and 20…2000 g/h (which corresponds with 13,3…666 mln/min up to 0,26…26,6 ln/min when used on nitrogen) at operating pressures up to 200 bar (higher on request). The instruments are equipped with a robust IP65 weatherproof housing and are optionally available with ATEX approval for use in Zone 2 hazardous areas.
High accuracy, excellent repeatability
Fast response
Independent of fluid properties
Additional density and temperature output
Compact, rugged (IP65) design
Optional ATEX approval Cat.3, Zone 2
Thông số kỹ thuật
| Measurement / control system |
| Mass flow accuracy |
Liquid: ± 0,2% of rate;
Gas: ± 0,5% of rate |
| Turndown |
up to 1:100 |
| Repeatability |
±0,05% of rate ± ½(ZS* x 100/flow)% based on digital output |
| Zero Stability (ZS)* |
< ±0,2 g/h |
| Response time, meter (t98%) |
≤ 200 msec |
| Operating temperature |
0…70°C;
for ATEX Cat.3, Zone 2 max. 50°C |
| Temperature effect** |
on zero: < 0,02 g/h/°C;
on span: < 0,001% Rd/°C;
self heating (at zero flow): ≤ 15°C |
| Temperature accuracy |
±0,5°C |
| Density accuracy |
< ±5 kg/m3 |
| Mounting*** |
Any position, attitude sensitivity negligible |
| Leak integrity |
Outboard < 2 x 10-9 mbar l/s He |
| Warm-up time |
> 30 min. for optimum accuracy |