Model |
Mass Flow Controller |
Mass Flow Meter |
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EX-250SC |
EX-250SM |
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Sensor type |
Thermal sensor |
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Valve type |
Normally closed proportional solenoid valve |
- |
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Applicable gases(*1) |
N2、Air、H2、He、Ar、O2、CO2 etc. |
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(Gases not specifically mentioned here are subject to calibration for N2 equivalent.) |
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Flow range(*2) |
10SCCM ~ 5SLM |
|
Control(measure)range |
2 ~ 100%(F.S.) |
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Response |
≤ 1sec (within ± 2%F.S.)(*8) |
|
Accuracy(*3) |
± 1.0%F.S. |
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Repeatability |
± 0.2%F.S. |
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Operating differential pressure(*4) |
50 ~ 300kPa(Ar、CO2:100kPa ~ 300kPa) |
- |
|
Inlet maximum pressure |
500kPa(G) |
|
Proof pressure |
980kPa(G) |
|
External leak rate(He) |
≤ 1.0 × 10-8Pa・m3/sec |
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Temperature |
Working temp. |
5 ~ 50℃ |
|
Accuracy guaranteed temp. |
15 ~ 35℃ |
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Allowable storage temp. |
-10 ~ 60℃ |
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Allowable operating humidity |
10 ~ 90%RH (without dew condensation) |
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Materials of gas contact part |
SUS316, SUS316L, magnetic stainless steel(*5), PTFE, FKM |
|
Electrical connection |
Dsub 9pin KFC Standard(SEMI standard compliant) |
|
HR-10A |
|
Flow rate setting signal |
0~5VDC(input impedance: approx. 1M Ω) |
- |
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or 4~20mA(input impedance: approx. 250 Ω) |
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Flow rate output signal |
0 ~ 5VDC( load resistance ≧10k Ω) |
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or 4 ~ 20mA( load resistance ≧500 Ω) |
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Digital communication |
RS485 rotary-switch address setting |
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Required power supply (DC) |
+15VDC( ± 5%)100mA , -15VDC(± 5%)150mA |
|
or +24VDC(± 10%) ≤180mA (MFM would be ≤100mA) |
|
Joint(*6) |
1/4F900(standard) |
|
Mounting posture |
Horizontal installation recommended. |
|
Weight(*7) |
Approx.500g |
Approx.440g |
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(*1) The gases must be dry and clean, free of corrosive components and foreign matter such as dust and mist. |
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(*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) Accuracy for calibration gas: N2, flow range (max. full scale). |
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(*4) The operating differential pressure may differ depending on specifications. |
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(*5) Mass flow meter does not contain magnetic stainless steel. |
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(*6) Contact us for any other joints. |
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(*7) Exclusive of weight of joint. |
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(*8) Pressure condition would be needed when you order. |