EL-FLOW Prestige FG-111AC
High Performance Mass Flow Meter for Gases
- ♦ On-board gas conversion model (Multi-Fluid / Multi-Range)
- ♦ 100 unique gases embedded
- ♦ User configurable I/O functions
- ♦ Significantly reduced power consumption
- ♦ Further advances in flow-signal processing

Gas Mass Flow Meters for low flow rates
Bronkhorst® model FG-111AC High Performance Mass Flow Meters (MFMs) are suited for precise measurement of flow ranges between 0,4…20 ln/min and 2…100 ln/min at operating pressures between vacuum and 100 bar. The MFM consists of a thermal mass flow sensor and a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for optional mass flow control by means of a separately mounted control valve.
EL-FLOW® Prestige series are equipped with a digital pc-board, offering high accuracy, excellent temperature stability and fast response. The main digital pc-board contains all of the general functions needed for measurement and control. 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 CANopen®, DeviceNet™, EtherCAT®, PROFIBUS DP, PROFINET, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK or FLOW-BUS protocols. The EL-FLOW® Prestige design features standard Multi Gas / Multi Range functionality, providing (OEM-) customers with optimal flexibility and process efficiency.
Technical specifications
Measurement / control system | |
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Flow range (intermediate ranges available) | min. 0,014…0,7 mln/min max. 0,18…9 mln/min (based on N2) |
Accuracy (incl. linearity) (based on actual calibration) | standard: ±0,5% Rd plus ±0,1%FS (±0,8% Rd plus ±0,2% FS for ranges 3…5 mln/min; ±1% Rd plus ±1% FS for ranges < 3 mln/min) |
Repeatability | < 0,2 % RD |
Turndown ratio | 1:150 (1:50 in analog mode) |
Multi Gas/Multi Range | embedded gas data for 100 unique gases, plus any mixture of maximum 5 of these gases. MG/MR functionality available up to 100 bar. |
Operating temperature | -10 … 70 °C |
Temperature sensitivity | zero: < 0,02% FS/°C; span: < 0,025% Rd/°C |
Pressure sensitivity | < 0,02% Rd/bar typical N2 |
Leak integrity, outboard | tested < 2 x 10-9 mbar l/s He |
Attitude sensitivity | max. error at 90º off horizontal 0,07% FS at 1 bar, typical N2 |
Warm-up time | 30 min. for optimum accuracy 2 min. for accuracy ± 1% FS |
Mechanical parts | |
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Material (wetted parts) | Stainless steel 316L or comparable, degreased for use on oxygen (O2) |
Pressure rating (PN) | 100 bar g |
Pressure sensor | P-max: 130 bara; Burst pressure 350 bara |
Process connections | compression type or face seal (VCR/VCO) couplings |
Seals | standard: FKM/Viton® options: EPDM, FFKM/Kalrez®, FDA and USP Class VI approved compounds |
Weight | 0,6 kg |
Ingress protection | IP40 |
Electrical properties | |||||
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Power supply | +15 … 24 Vdc | ||||
Max. power consumption meter |
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Max. Power consumption controller |
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Analog output | 0…5 (10) Vdc or 0 (4)…20 mA (sourcing output) | ||||
Digital communication | standard: RS232; options: PROFIBUS DP, CANopen®, DeviceNet™, PROFINET, EtherCAT®, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK, FLOW-BUS | ||||
Certification | CE / UKCA |
Measurement / control system | |
---|---|
Flow range (intermediate ranges available) | min. 0,4…20 ln/min max. 2…100 ln/min (based on N2) |
Accuracy (incl. linearity) (based on actual calibration) | ± 0,5 % RD plus ±0,1%FS |
Repeatability | < 0,2 % RD |
Turndown ratio | 1:150 (1:50 in analog mode) |
Multi Gas/Multi Range | embedded gas data for 100 unique gases, plus any mixture of maximum 5 of these gases. MG/MR functionality available up to 100 bar. |
Operating temperature | -10 … 70 °C |
Temperature sensitivity | zero: < 0,02% FS/°C; span: < 0,025% Rd/°C |
Pressure sensitivity | <0,15% Rd/bar typical N2; < 0,02% Rd/bar N2 (incl. pressure correction option) |
Leak integrity, outboard | tested < 2 x 10-9 mbar l/s He |
Attitude sensitivity | max. error at 90º off horizontal 0,07% FS at 1 bar, typical N2 |
Warm-up time | 30 min. for optimum accuracy 2 min. for accuracy ± 1% FS |
Mechanical parts | |
---|---|
Material (wetted parts) | Stainless steel 316L or comparable, degreased for use on oxygen (O2) |
Pressure rating (PN) | 100 bar g |
Process connections | compression type or face seal (VCR/VCO) couplings |
Seals | standard: FKM/Viton® options: EPDM, FFKM/Kalrez®, FDA and USP Class VI approved compounds |
Weight | 0,7 kg |
Ingress protection | IP40 |
Electrical properties | |||||
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Power supply | +15 … 24 Vdc | ||||
Max. power consumption meter |
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Max. Power consumption controller |
(based on normally closed valve, pin 5 not used) | ||||
Analog output | 0…5 (10) Vdc or 0 (4)…20 mA (sourcing output) | ||||
Digital communication | standard: RS232; options: PROFIBUS DP, CANopen®, DeviceNet™, PROFINET, EtherCAT®, Modbus RTU, ASCII or TCP/IP, EtherNet/IP, POWERLINK, FLOW-BUS | ||||
Certification | CE / UKCA |
Electrical connection | |
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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) |
IEC 61010-1 | IEC-61010-1:2010 including national deviations for UL (61010-1:2012) and CSA (C22.2 No. 61010-1-12) |