SevenStar
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| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | CS200(A) |
| Type | Volumetric Mass Flow Controller |
| Flow Range | 5 sccm to 50 slm |
| Accuracy | ±0.35% F.S. (<35% F.S.), ±1.0% S.P. (≥35% F.S.) |
| Repeatability | ±0.2% F.S. |
| Linearity | ±0.5% F.S. |
| Response Time | ≤1 sec |
| Operating Temperature | 5–45 °C |
| Max Pressure Rating | 3 MPa |
| Seal Material | Viton® fluoroelastomer |
| Input/Output Signals | 0–5 VDC, 0–20 mA, 4–20 mA, RS-485, DeviceNet®, Profibus® |
| Power Supply | ±15 VDC, 24 VDC, or +14–+28 VDC |
| Valve Configuration | Normally Open (≤30 slm), Normally Closed (>30 slm) |
| Zero Drift | <0.6% F.S./year (without auto-zero) |
| Temperature Coefficients | Zero ≤±0.05% F.S./°C |
| Pressure Drop Range | 0.05–0.35 MPa (F.S. ≤10 slm), 0.1–0.35 MPa (10–30 slm), 0.2–0.45 MPa (>30 slm) |
| Helium Leak Rate | ≤1×10⁻¹⁰ Pa·m³/sec |
| Standard Fittings | Dual Ferrule 1/4", 1/8", Φ3 mm, Φ6 mm, Φ10 mm, 3/8", VCR 1/4", VCO 1/4" |
| Surface Roughness | 25 µin |
| EMC Compliance | CE |
| Weight | 1 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | CS300 |
| Product Type | Volumetric Mass Flow Controller |
| Accuracy | ±1% S.P. (≥35% F.S.), ±0.35% F.S. (<35% F.S.) |
| Linearity | ±0.5% F.S. |
| Repeatability | ±0.2% F.S. |
| Response Time | ≤0.8 sec (≤0.5 sec optional) |
| Operating Pressure Drop Range | 0.05–0.35 MPa (≤10 SLM), 0.1–0.35 MPa (>10 SLM), <0.02 MPa (for low-pressure variants) |
| Temperature Coefficient | Zero ≤±0.02% F.S./°C |
| Burst Pressure | 3.5 MPa |
| Helium Leak Rate | ≤1×10⁻¹¹ Pa·m³/sec |
| Surface Roughness | Ra ≤5 µin |
| Input/Output | RS485 / DeviceNet / (0–5) VDC |
| Power Supply | ±11–±16 VDC (bipolar) or +11–+28 VDC (unipolar) |
| Operating Ambient Temperature | 0–50 °C |
| Standard Fitting Types | VCR 1/4", 1.125" C/W, 1.5" B/C/W |
| Enclosure Weight | 0.8–1.2 kg |
| Sealing Material | Metal |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-11C |
| Type | Volumetric (Thermal Mass Flow Principle) |
| Flow Range | 5–30 sccm, 50–500 sccm, 1–30 slm |
| Accuracy | ±1% F.S. (±2% F.S. for 20 & 30 slm) |
| Repeatability | ±0.2% F.S. |
| Linearity | ±0.5% F.S. (±2% F.S. for 20 & 30 slm) |
| Response Time | Electrical ≤10 s |
| Operating Temperature | 5–45 °C |
| Max Working Pressure | 10 MPa |
| Sealing Materials | Viton®, Neoprene, PTFE |
| Input/Output Signal | 0–5 V DC (Zin >100 kΩ, Iout ≤3 mA) |
| Power Supply | ±15 V DC |
| Electrical Interface | D-Sub 15-pin Male |
| Pressure Drop Range | 0.2–0.6 MPa (for F.S. >10 slm) |
| Helium Leak Rate | ≤1×10⁻¹⁰ atm·cm³/s (≤1×10⁻¹¹ Pa·m³/s) |
| Standard Fittings | Dual Ferrule 1/8", Φ3 mm, Φ6 mm, Φ8 mm, Φ10 mm, 3/8", 1/4", VCR 1/4" |
| EMI Immunity | CE Certified |
| Weight | 1 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-19B |
| Flow Type | Thermal Mass Flow (N₂-calibrated) |
| Full-Scale Range | 5 SCCM – 30 SLM |
| Control Range | 2–100% F.S. |
| Accuracy | ±1% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Linearity | ±0.5–1% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Repeatability | ±0.2% F.S. |
| Response Time | ≤2 s |
| Operating Temperature | 5–45 °C |
| Pressure Drop | 0.1–0.5 MPa (≤10 SLM), 0.1–0.3 MPa (>10 SLM) |
| Burst Pressure | 3 MPa |
| Helium Leak Rate | ≤1×10⁻⁹ SCCS |
| Sealing Materials | Viton®, PTFE, Neoprene |
| Electrical Interface | DB15 male connector |
| Mechanical Interfaces | VCR 1/4", φ4 mm / φ6 mm hose, Swagelok 1/8" / 1/4", or φ3 mm / φ6 mm tubing |
| EMC Compliance | CE |
| Weight | 0.95 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-19BM |
| Flow Type | Thermal Mass Flow Measurement |
| Gas Calibration Medium | Nitrogen (N₂) |
| Standard Conditions | 0 °C (273.15 K), 101325 Pa |
| Full-Scale Range (N₂) | 5 SCCM to 30 SLM |
| Control Range | 2–100% F.S. |
| Accuracy | ±1% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Linearity | ±0.5–1% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Repeatability | ±0.2% F.S. |
| Response Time | ≤2 s |
| Operating Temperature | 5–45 °C |
| Maximum Working Pressure Drop | <0.02 MPa |
| Burst Pressure Rating | 10 MPa |
| Helium Leak Rate | ≤1×10⁻⁹ SCCS He |
| Sealing Materials | Fluoroelastomer (FKM), Polytetrafluoroethylene (PTFE), Chloroprene Rubber (CR) |
| Mechanical Interface Options | VCR 1/4″, φ4 mm / φ6 mm hose barb, Swagelok 1/8″ / 1/4″, or φ3 mm / φ6 mm tubing ports |
| Electrical Connector | DB15 male |
| EMC Compliance | CE certified |
| Weight | 0.7 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-19C |
| Flow Type | Thermal Mass Flow |
| Full-Scale Range (N₂) | 5 SCCM to 20 SLM |
| Control Range | 2–100% F.S. |
| Valve Type | Solenoid-Controlled Proportional Valve (Normally Closed) |
| Accuracy | ±1% F.S. (≤10 SLM), ±2% F.S. (＞10 SLM) |
| Linearity | ±0.5–1% F.S. (≤10 SLM), ±2% F.S. (＞10 SLM) |
| Repeatability | ±0.2% F.S. |
| Zero Temp. Coefficient | ≤±0.05% F.S./°C |
| Span Temp. Coefficient | ≤±0.1% F.S./°C |
| Response Time | ≤1.5 s |
| Operating Temperature | 5–45°C |
| Operating Differential Pressure | 0.1–0.5 MPa (≤10 SLM), 0.1–0.3 MPa (＞10 SLM) |
| Burst Pressure | 3 MPa |
| Leak Rate | ≤1×10⁻⁹ SCCS He |
| Sealing Materials | Fluoroelastomer (FKM), Polytetrafluoroethylene (PTFE), Chloroprene Rubber (CR) |
| Mechanical Interface Options | VCR 1/4", φ4 mm / φ6 mm hose, Swagelok 1/8" / 1/4", φ3 mm / φ6 mm tubing |
| Electrical Interface | DB15 Male Connector |
| EMC Compliance | CE |
| Weight | 1.2 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-19CM |
| Flow Type | Thermal Mass Flow Measurement |
| Gas Calibration Medium | Nitrogen (N₂) |
| Standard Conditions | 0 °C (273.15 K), 101325 Pa |
| Full-Scale Range (N₂) | 5 SCCM to 20 SLM |
| Control Range | 2–100% F.S. |
| Accuracy | ±1% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Linearity | ±0.5% F.S. (≤10 SLM), ±2% F.S. (>10 SLM) |
| Repeatability | ±0.2% F.S. |
| Response Time | ≤1.5 s |
| Zero Temp. Coefficient | ≤±0.05% F.S./°C |
| Span Temp. Coefficient | ≤±0.1% F.S./°C |
| Operating Temperature | 5–45 °C |
| Maximum Working Pressure Drop | <0.02 MPa |
| Burst Pressure Rating | 10 MPa |
| Helium Leak Rate | ≤1×10⁻⁹ SCCS |
| Sealing Materials | Fluoroelastomer (FKM), Polytetrafluoroethylene (PTFE), Chloroprene Rubber (CR) |
| Process Connections | VCR 1/4″, φ4 mm / φ6 mm hose, Swagelok 1/8″ / 1/4″, or φ3 mm / φ6 mm tubing |
| Electrical Interface | DB15 male connector |
| EMC Compliance | CE certified |
| Weight | 1 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-7B |
| Type | Thermal Mass Flow Controller |
| Flow Ranges | 5–10,000 sccm (selectable per unit) |
| Accuracy | ±1.5% FS |
| Repeatability | ±0.2% FS |
| Linearity | ±1.0% FS |
| Response Time (Electrical) | ≤10 s |
| Response Time (Gas) | ≤4 s |
| Operating Temperature | 5–45 °C |
| Maximum Working Pressure | 3 MPa |
| Pressure Drop Range | 0.1–0.5 MPa |
| Seal Materials | Viton (FKM), Neoprene |
| Input/Output Signal | 0–5 V DC (Input Impedance >100 kΩ |
| Power Supply | +15 V / 50 mA, −15 V / 200 mA |
| Electrical Interface | D-Sub 15-pin Female |
| Leak Rate | ≤1×10⁻⁸ atm·cm³/s He (≤1×10⁻⁹ Pa·m³/s He) |
| Standard Fittings | Dual Ferrule (Φ3/Φ6/Φ8 mm, 1/8″/1/4″), VCR 1/4″, φ4×1 & φ6×1 Flexible Tube Ports |
| Weight | 1.1 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-7C |
| Flow Range (N₂) | 5 SCCM to 10 SLM |
| Control Range | 2–100% F.S. |
| Valve Type | Solenoid-Controlled Proportional Valve (Normally Closed) |
| Accuracy | ±1.5% F.S. |
| Linearity | ±1% F.S. |
| Repeatability | ±0.2% F.S. |
| Electrical Response Time | 10 s |
| Gas Response Time | ≤4 s |
| Operating Temperature | 5–45 °C |
| Operating Pressure Drop | 0.1–0.5 MPa |
| Burst Pressure Rating | 3 MPa |
| Helium Leak Rate | ≤1×10⁻⁸ atm·cm³/s |
| Sealing Materials | Fluoroelastomer (FKM), Chloroprene Rubber (CR) |
| Electrical Connector | DB15 Female |
| Tube Fitting Options | VCR 1/4″, φ4 mm & φ6 mm hose, Swagelok 1/4″, φ3 mm & φ6 mm |
| EMC Compliance | CE |
| Weight | 1.1 kg |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D07-7CM |
| Flow Principle | Thermal Mass Flow Measurement (Constant Temperature Anemometry) |
| Gas Medium | N₂-calibrated (standardized at 0 °C, 101.325 kPa) |
| Full-Scale Range | 5 SCCM – 10 SLM (N₂) |
| Control Range | 2–100 % F.S. |
| Accuracy | ±1.5 % F.S. |
| Linearity | ±1 % F.S. |
| Repeatability | ±0.2 % F.S. |
| Response Time | ≤10 s |
| Operating Temperature | 5–45 °C |
| Maximum Pressure Drop | <0.01 MPa |
| Burst Pressure | 3 MPa |
| Helium Leak Rate | ≤1×10⁻⁸ atm·cm³/s |
| Sealing Material | Fluoroelastomer (FKM) or Neoprene |
| Power Supply | +15 V/50 mA, −15 V/50 mA |
| Analog Output | 0–5.00 V DC |
| Electrical Connector | DB15 female |
| Process Connections | VCR 1/4″, Swagelok 1/4″, or φ3/φ4/φ6 stainless steel tubing |
| EMC Compliance | CE certified |
| Weight | 0.92 kg |
| Construction | Tubular bypass design with integrated thermal sensor |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D08-1F |
| Power Supply | ±15 V DC / 400 mA, +5.00 V DC / 5 mA |
| Input Voltage Range | 85–260 V AC |
| Max. Power Consumption | 15 W |
| Analog Input Signals | 0–+5 V (voltage), 4–20 mA (current, optional 0–10 mA) |
| Analog Output Signals | 0–+5 V (flow detection), ±15 V (valve control) |
| Display Channels | 1-channel MFC/MFM interface |
| Weight | 1 kg |
| Compliance | CE-certified |
| Type | Volumetric flow display instrument for gas mass flow controllers and meters |
| Brand | SevenStar |
|---|---|
| Origin | Beijing, China |
| Model | D08-8C |
| Type | Volumetric Flow Totalizer |
| Power Supply | 85–265 VAC, 50/60 Hz, 12 W |
| Output Voltages | +15 V @ 200 mA, −15 V @ 400 mA |
| Max. Accumulated Flow | 999999 L or m³ |
| Accumulation Accuracy | < ±0.3% FS |
| Input/Output Signals | 0–+5 V analog (flow detection, setpoint, valve control) |
| Display | Dual digital LCD (instantaneous & cumulative flow) |
| Control Channels | 1-channel MFM/MFC interface |
| Weight | 0.5 kg |
| Enclosure Grounding | Dedicated chassis ground terminal |
| Compliance | CE-marked |