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Model Mass Flow Controller Mass Flow Meter  
EX-550C EX-550M  
Sensor type Thermal sensor  
Valve type Normally closed proportional solenoid valve -  
Applicable gases(*1) N2、Air、H2、He、Ar、O2、CO2 etc.  
(Gases not specifically mentioned here are subject to calibration for N2 equivalent.)  
Flow range(*2) 10SCCM ~ 5SLM  
Control(measure)range 2 ~ 100%(F.S.)  
Response ≤ 1sec (within ± 2%F.S.)(*4)  
Accuracy ± 1.0%S.P. (25%F.S. ~ 100%F.S.) , ± 0.25%F.S. ( ~ 25%F.S.)  
Repeatability ± 0.2%FS  
Operating differential pressure(*3) 50 ~ 300kPa(Ar、CO2:100kPa ~ 300kPa)  -  
Inlet maximum pressure 350kPa(G)  
Proof pressure 980kPa(G)  
External leak rate(He) ≤ 1.0 × 10-11Pa・m3/sec   
Temperature Working temp. 5 ~ 50℃  
Accuracy guaranteed temp. 15 ~ 35℃  
Allowable storage temp. -10 ~ 60℃  
Allowable operating humidity 10 ~ 90%RH(without dew condensation)  
Materials of gas contact part SUS316L、PTFE、Ni-Co  
Electrical connection Dsub 9pin KFC Standard(SEMI standard compliant)  
HR-10A × 2  
Flow rate setting signal 0~5VDC(input impedance: approx. 1M Ω) -  
or 4~20mA(input impedance: approx. 250 Ω)   
Flow rate output signal 0 ~ 5VDC( load resistance ≧10k Ω)  
or 4 ~ 20mA( load resistance ≧500 Ω)  
Digital communication RS485 rotary-switch address setting  
Required power supply (DC) +15VDC( ± 5%)100mA , -15VDC(± 5%)150mA   
or +24VDC(± 10%) ≤180mA  (MFM would be ≤100mA)  
Joint 1/4VCR   
Mounting posture Free  
Weight Approx.800g  Approx.550g  
         
         
(*1) The gases must be dry and clean, free of corrosive components and foreign matter such as dust and mist.  
(*2) The flow rate calibration units SCCM and SLM indicate a mass flow rate converted to a volume flow rate in cc/min and L/min at 0°C and 1 atm.
(*3) The operating differential pressure may differ depending on specifications.    
(*4) Pressure condition would be needed when you order.