
◼PRODUCT DESCRIPTION
Lead Fluids stands out for its exceptional technical expertise in gas mass flow measurement and control. We remain committed to providing our customers with exceptional, stable, and reliable gas measurement and control technologies, as well as comprehensive solutions. Whether serving industries such as semiconductors, solar photovoltaics, and automotive, or new energy, medical devices, environmental monitoring, biochemistry, and life sciences, we offer tailored, high-quality services that precisely meet the stringent requirements for gas measurement, control, and process management. In the face of ever-changing market demands and rising customer expectations, we remain committed to continuously evolving, ensuring our services adapt to the rapid evolution of end-use applications and meet our customers' diverse needs.
◼PRODUCT FEATURES
Good repeatability
The E Series MFC is highly acclaimed for its outstanding performance in the field of gas flow control. Among them, excellent repeatability is one of its characteristics. Whether in continuous operation mode or intermittent operation mode, the E Series MFC can show stable and reliable performance. This means that even during long-term use, the flow control accuracy of the E Series MFC can remain consistent, providing users with a more accurate and reliable gas flow control solution.


Gas mass flow meter/controller model |
EM66/E60 |
performance | Full scale(N2 Eqv) | 2 sccm – 5 slm | 5 slm – 50 slm | 30 slm – 200 slm | 200 slm – 500 slm |
Control scope | 2% - 100% F.S. |
Response time | ≤ 1.0 s Reach full scale±1% | ≤ 3.0 s Reach full scale±2% |
Flow accuracy | ≤±1% S.P.(25%-100% F.S.) ≤±0.25% F.S.(2%-25% F.S.) | ≤±2% F.S |
Linearity | ≤±0.5% F.S. | ≤±1% F.S. |
Repeatability | ≤±0.2% F.S. |
Normal working pressure | 0.05 MPa – 0.28 MPa | 5 slm – 23 slm: 0.07 MPa - 0.25 Mpa 23 slm – 50 slm: 0.14MPa – 0.28 Mpa | 0.15 MPa - 0.30 MPa | 0.20 MPa – 0.30 MPa |
Maximum working pressure difference | 0.48 MPa (≈70 psig) |
Compressive strength | Max 1.03 MPa (150 psig) |
Valve leakage rate | Fluororubber: Max 1*10-7 Pa.m3/s (He) Metal: Max 1*10-11 Pa·m3/s (He) |
Operating temperature | Standard products:5℃ – 45℃ High temperature integrated products:45℃ - 70℃ High temperature split products:70℃ - 120 ℃ |
Mechanical configuration | Valve Type | Normally Open(NO)/Normally Closed(NC)/No valve(Flow Meter) |
Seals | Fluororubber/Metal |
Material | Stainless Steel 316L, PTFE, FKM, FFKM |
Surface treatment | Ra: ≤5 (Metal) |
Electrical configuration | electrical signals | (4 - 20)mA, 0-5VDC: 9P-Dsub*1 (4 - 20)mA, 0-5VDC: 9P-Dsub*1, RS485: RJ11*2 ProfiBus-DP: Bus: 9P-Dsub(F)*1, Power: 9P-Dsub(M)*1 DeviceNet: 5-Pin M12*1, RJ11*1 EtherCAT: RJ45*2, 5-Pin M8*1 ProfiNet: RJ45*2, 5-Pin M8*1 |
Input Power | + 15 VDC ±2% at 50 mA - 15 VDC ±2% at 250 mA maximum 24 VDC ±15% at 300 mA maximum |
Power consumption | 3.5W | 4.5W |
Optional Configuration | Integrated control panel | TFTtouch screen:Readable、Control and calculate gas mass flow,Only rubber seal products are supported |
Multi-gas multi-range | Traffic segment:2sccm – 50slm Control scope :5% - 100% F.S. Accuracy: ±1.5%(5-100% F.S.) Only metal seals are supported Only supports digital communication、DeviceNet And EtherCAT communication |
◼SUPPORT GAS
This product supports 440 industrial and specialty gases, covering the following categories:
• Conventional industrial gases (such as N₂, O₂, Ar),
• Semiconductor-grade specialty gases (including high-purity gases for etching, deposition, and doping),
• Custom gas mixtures (precise gas ratios can be provided based on customer needs),
To confirm whether a specific gas is on the compatible list, please contact our technical sales team for the latest gas list and compatibility solutions.
coding | Interpretation | Options | Option explanation |
I | Model | E60 | Gas mass flow control |
EM66 | Gas mass flow meter |
II | Application | ST | 5℃-45℃Standard application |
HT | High temperature application(45℃ - 70℃), integrated model |
HTS | High temperature application(45℃ - 120℃),Split model |
III | Configuration | C | Standard Bins (calibrated with N2, MGMR), supports products with flow range of <50slm |
X | Preset gas (Multi-one, single gas) |
IV | Gas or Standard Bin | XXXX-XXXX | Semiconductor gas code and range, (51 - 500)slm only supports single gas setting |
PS60-010C | Multi-0: N2 (Eqv) 10 sccm F.S. |
PS61-030C | Multi-1: N2 (Eqv) 30 sccm F.S. |
PS62-100C | Multi-2: N2 (Eqv) 100 sccm F.S. |
PS63-300C | Multi-3: N2 (Eqv) 300 sccm F.S. |
PS64-001L | Multi-4: N2 (Eqv) 1000 sccm F.S. |
PS65-003L | Multi-5: N2 (Eqv) 3000 sccm F.S. |
PS66-005L | Multi-6: N2 (Eqv) 5000 sccm F.S. |
PS67-010L | Multi-7: N2 (Eqv) 10000 sccm F.S. |
PS68-030L | Multi-8: N2 (Eqv) 30000 sccm F.S. |
PS69-050L | Multi-9: N2 (Eqv) 50000 sccm F.S. |
V | Gas Line Interface |
61 | 1/4" SwageLok male,Only rubber seal products are supported |
62 | 3/8" SwageLok male,Only rubber seal products with flow rates of 5slm and above are supported |
63 | 1/4" VCR male |
65 | 1.125" C-seal,Only metal seal products are supported |
66 | 1.125" W-seal,Only metal seal products are supported |
67 | 1.5" C-seal,Only metal seal products are supported |
68 | 1.5" W-seal,Only metal seal products are supported |
69 | 6mm SwageLok male,Only rubber seal products are supported |
70 | 8mm SwageLok male,Only rubber seal products with flow rates of 5slm and above are supported |
71 | 10mm SwageLok male,Only rubber seal products with flow rates of 5slm and above are supported |
72 | 1/2" SwageLok male,Only rubber seal products with flow rates of 5slm and above are supported |
73 | 1/2" VCR male,Only supports products with a flow rate of 5slm and above |
74 | 6mmHose, only supports rubber seal products |
75 | 8mmHose, only supports rubber seal products |
VI | Valve Status | C | Normally Closed |
O | Normally open, only supports flow range below 50slm |
N | No valve(EM66) |
VII | Seal Material | F | Fluororubber(default) |
M | Metal |
VIII | Communication/Power Interface | DZ | RS485 digital communication, analog compatible, 0 - 5 VDC, ±15V power supply |
DY | RS485 digital communication, compatible with analog, 4mA -20mA, ±15V power supply |
DX | RS485 digital communication, analog compatible, 0 - 5 VDC, 24V power supply |
DW | RS485 digital communication, compatible with analog, 4mA-20mA, 24V power supply |
MZ | Modbus communication, analog compatible, 0 - 5 VDC, ±15V power supply |
MY | Modbus communication, compatible with analog, 4mA -20mA, ±15V power supply |
MX | Modbus communication, analog compatible, 0 - 5 VDC, 24V power supply |
MW | Modbus communication, compatible with analog, 4mA-20mA, 24V power supply |
PZ | ProfiBus protocol communication |
NZ | DeviceNet protocol communication |
EZ | EtherCAT protocol communication |
RZ | ProfiNet protocol communication |
IX | Special Requirements | XXXX | Customer special requirement code |
Product code selection example: E60 model, standard application, MGMR, 1/4 VCR, valve normally closed, metal seal, DeviceNet communication |
I | II | III | IV | V | VI | VII | VIII | IX |
E60 | ST | C | PS60-010C | 63 | C | M | NZ | XXXX |