Bronkhorst® model F-107Z Mass Flow Meters (MFMs) are suited for precise measurement of flow ranges between 0,2...10 m3n/h and 20...1000 m3n/h (N2-equivalent). The instruments are particularly suited for corrosive gases or applications with very low differential pressure (∆P). Compared to conventional instruments, LOW-∆P-FLOW meters have larger flow channels to minimize the risk of clogging, facilitate cleaning and purging, and cause lower pressure drop (the sensor only requires 0,5 to 5 mbar). This model is of rugged design (IP65) for use in industrial environments or even Zone 2 hazardous areas, with optional ATEX Cat. 3 approval.
The integrated digital pc-board provides signal and fieldbus conversion as well as PID controller functionality for optional mass flow control by means of a (separately mounted) control valve. In addition to the standard RS232 output the instruments also offer analog I/O. As an option, an on-board interface can be mounted to provide DeviceNet™, PROFIBUS DP, Modbus or FLOW-BUS protocols.
Large bore capillary (thermal bypass sensor)
Very low pressure drop
Less sensitivity to humidity or dirt
Suitable of corrosive gases
Easy to purge
Rugged, weatherproof housing (IP65, dust and waterproof)
Thông số kỹ thuật
| Electrical properties |
| Power supply |
+15…24 Vdc |
| Max. power consumption Meter |
Supply
15 V
24 V |
at voltage I/O
95 mA
65 mA |
at current I/O
125 mA
85 mA |
| Max. power consumption Controller |
Supply
15 V
24 V |
at voltage I/O
290 mA
200 mA |
at current I/O
320 mA
215 mA |
| PROFIBUS DP |
add 53 mA (15 V supply) or 30 mA (24 V supply) |
| PROFINET |
add 77 mA (15 V supply) or 48 mA (24 V supply) |
| EtherCAT® |
add 66 mA (15 V supply) or 41 mA (24 V supply) |
| DeviceNet™ |
add 48 mA (24 V supply) |
| Analog output/command |
0...5 (10) Vdc or 0 (4)…20 mA (sourcing output) |
| Digital communication |
standard: RS232;
options: PROFIBUS DP, DeviceNet™, Modbus RTU or ASCII, FLOW-BUS |