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| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GOW-MAC 200DID |
| Detector Type | Helium Discharge Ionization Detector (DID) |
| Detection Limit | <5 ppb |
| Linear Dynamic Range | >10⁶ |
| Column Oven Temperature Range | +10 °C to 150 °C |
| Column Format | Micro-packed and 1/8″ packed columns |
| Flow Control | Precision Mass Flow Controllers |
| Sample Introduction | Pneumatically Actuated Gas Sampling Valve |
| Valve Configurations | Backflush, Column Selection, Heart-Cut, Series/Bypass |
| Construction Materials | Electropolished Stainless Steel with VCR Fittings |
| Operating Modes | Manual (for method development) and Fully Automated (for continuous process analysis) |
| Compliance | Designed for GLP/GMP environments |
| Brand | GAOMAI |
|---|---|
| Origin | Beijing, China |
| Model | GM-816 |
| Detection Limit | <5 ppb (CH₄, with DID detector) |
| Linear Dynamic Range | >10⁶ |
| Maximum Detector Capacity | 3 simultaneous detectors (e.g., DID-V, TCD, FPD, FID) |
| Column/Valve Configuration | Up to 10 columns and 5 multi-dimensional switching valves |
| Flow Control | Electronic Pressure Control (EPC) |
| Power Supply | 220 V ±10%, 2250 W |
| Connection Standard | VCR fittings for low-dead-volume gas pathways |
| Valve Oven Protection | Integrated valve box with thermal stabilization and contamination isolation |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | 210 ACE |
| Detection Principle | Hydrogen Flame Ionization Detection (FID) with High-Selectivity Gas Chromatographic Separation |
| Detection Limit | <30 ppb |
| Linear Dynamic Range | >6 orders of magnitude |
| Compliance | ISBT Standard for Acetaldehyde in Beverage-Grade CO₂ |
| Installation | Benchtop or Rack-Mountable |
| Control Interface | Front-panel keypad + optional PC-based software with audit trail capability |
| Data Output | Real-time concentration display, analog output (4–20 mA), digital logging |
| Brand | GAOMAI |
|---|---|
| Origin | Beijing, China |
| Model | GM-800 |
| Price Range | USD 14,000 – 42,500 (FOB) |
| Linearity Error | ±2% FS |
| Repeatability | <0.5% FS |
| Drift | <1% FS/7 days |
| Response Time | ≤60 s |
| Explosion Protection | Not rated |
| Sensor Type | Imported Electrochemical Oxygen Sensor |
| Output Signal | 4–20 mA DC (isolated), RS-485 Modbus RTU |
| Power Supply | 220 VAC ±10%, 50/60 Hz |
| Operating Temperature | 0–45 °C |
| Enclosure Rating | IP65 |
| Calibration Interval | Recommended every 3–6 months |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GM 902 |
| Detector Options | Electrochemical, Catalytic Bead, NDIR, TCD, PID |
| Measurement Units | ppm, mg/m³, vol%, %LEL, pphm, ppb, mg/L |
| Sampling Method | Integrated diaphragm pump with hydrophobic particulate filter and moisture trap |
| Environmental Rating | Suitable for high-humidity ambient air sampling |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | 1400 |
| Measurement Range | 0–2 ppm / 0–20 ppm / 0–200 ppm H₂O in Ar |
| Accuracy | ±0.02 ppm (0–2 ppm), ±0.25 ppm (0–20 ppm), ±2.50 ppm (0–200 ppm) |
| Response Time (t₉₀) | ≤10 s |
| Sample Flow Rate | 2 scfh (0.88 slpm) |
| Inlet/Outlet Fittings | 1/4" VCR inlet, 1/4" Swagelok outlet |
| Operating Temperature | 16–35 °C |
| Max Inlet Pressure | 10 psig |
| Detector Type | Microwave-Induced Plasma Emission Spectroscopy (MIP-ES) |
| Sensitivity | ±0.01 ppm (Model 1400-A/1402-A), ±0.10 ppm (Model 1400-B/1402-B) |
| Output | 4–20 mA analog + dry contact alarms |
| Power | 100 W, 115/230 VAC, 50/60 Hz |
| Dimensions | 13.34 × 42.23 × 37.15 cm |
| Weight | 11.3 kg |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | 21070 |
| Detection Principle | Thermal Conductivity Differential Sensing |
| Calibration Traceability | NIST-Traceable Standards |
| Power Supply | 115 V / 230 V AC, 50/60 Hz, 4 W |
| Battery | Rechargeable NiMH, 3.6 V, 1650 mAh |
| Continuous Operation | ~15 hours |
| Charge Time | <60 min to 95% capacity |
| Operating Temperature | 21 °C ± 11 °C (70 °F ± 20 °F) |
| Dimensions | 13.34 × 8.26 × 4.60 cm (L × W × H) |
| Weight | 0.48 kg (instrument only), 0.28 kg (charger) |
| Display | Adjustable-brightness LED bar graph with peak-hold function |
| Pump Type | Diaphragm |
| Sensitivity Range | Low (×1) and High (×100) selectable |
| Response Time Constant & Averaging | User-adjustable |
| Zero Drift Compensation | Manual |
| Audio Alarm | Adjustable threshold and volume |
| Data Retention | Flash memory for user settings |
| Compliance | Designed for industrial leak screening per ASTM E2921 and ISO 10648-2 (qualitative detection) |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | 20600 |
| Detection Principle | Thermal Conductivity Detection (TCD) |
| Detector Type | Sealed-reference-cell TCD with four filament elements (rhenium-tungsten, tungsten, nickel) |
| Response Time | <10 s |
| Power Supply | Rechargeable battery or AC adapter |
| Calibration | Dual-range, user-configurable for specific binary gas pairs |
| Sensitivity | Calibratable to 0.5% O₂ in air |
| Display | Integrated LCD showing direct % concentration reading |
| Sample Handling | Integrated diaphragm pump |
| Compliance | Designed for field-deployable industrial process monitoring and leak verification per ASTM D1946 and ISO 8573-5 guidelines |
| Operating Environment | Portable, ruggedized housing for ambient industrial site use |
| Brand | GOW-MAC |
|---|---|
| Model | GM 1900 |
| Origin | Beijing, China |
| Detector Options | DID-V, TCD, FID |
| Detection Limit (CH₄) | <10 ppb |
| Operating Mode | Continuous 24/7 online analysis |
| Temperature Control | Microprocessor-regulated inlet, column oven, and detector zones |
| User Interface | High-resolution resistive touch LCD panel |
| Corrosion Protection | Wet-coated wetted surfaces |
| Compliance Features | Built-in self-diagnostic, purge gas safeguard, auto-reboot on power recovery, alarm logging |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GOW-MAC 2400 |
| Detector | Flame Ionization Detector (FID) |
| Detection Limit | 0.05 ppm (as CH₄) |
| Operating Temperature | 15–35 °C |
| Response Time | <5 s (to 90% of full response) |
| Drift | <1% FS/24 h |
| Repeatability | ±1% |
| Flow Control | Electronic Pressure Control (EPC) for fuel, air, and sample |
| Zero Interval | User-programmable auto-zero |
| Range Selection | 4 fixed ranges (0–10, 0–100, 0–1000, 0–10,000 ppm) or auto-ranging |
| Analog Output | 4–20 mA / 0–5 VDC (standard) |
| Digital Interface | USB + RS-232 |
| Relay Outputs | 2 programmable (high/low alarm) |
| Sample Inlet | 1/8" tubing, min. pressure 2 psig, flow 5–70 cc/min |
| Fuel Gas | H₂, min. 2 psig |
| Combustion Air | Zero-air (<1 ppm THC), min. 25 psig, flow 10–350 cc/min |
| Enclosure | 3U rack-mount (19″) or benchtop |
| Dimensions | 48.3 × 13.3 × 52.1 cm |
| Weight | 15.9 kg |
| Power | 100 W, 115 V 60 Hz (2400-CM) or 230 V 50 Hz (2402-CM) |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GOW-MAC 210 BTEX |
| Detection Limit | <5 ppb |
| Linear Range | 5 ppb to 5 ppm |
| Carrier Gas Flow Rate | ≈7 cc/min |
| Carrier Gas Pressure | 5–10 psig |
| Sample/Calibration Gas Pressure | 5 psig (max 20 psig) |
| Operating Temperature | 5–40 °C |
| Power Requirement | 400 W |
| Dimensions (W×H×D) | 42.9 × 31.1 × 58.4 cm |
| Weight | 23 kg (net), 28 kg (shipping) |
| Gas Fitting | 1/8" Swagelok |
| Mounting | EIA 19" rack (7U) or benchtop |
| Analog Outputs | six 4–20 mA channels |
| Input Trigger | TTL or dry contact |
| Display | 16×2 character LED backlight |
| User Interface | membrane keypad (non-contact, numeric) |
| Brand | GAOMAI |
|---|---|
| Origin | Beijing, China |
| Model | GM 1900 Explosion-Proof Series |
| Explosion Protection Mark | Ex de ib mb px IIC T4 Gb |
| IP Rating | ≥IP65 |
| Positive Pressure Range | 0–2069 Pa |
| Purge Time | 0–999 min (adjustable) |
| Alarm & Cut-off Pressure | 0–2069 Pa (adjustable) |
| Cabinet Dimensions | 90 cm × 75 cm × 50 cm |
| Gas Piping | EP-grade stainless steel tubing with orbital welding or VCR fittings |
| Pre-shipment Tests | Pressure hold, leak detection, moisture analysis, oxygen analysis, particle count |
| Compliance | Certified by National Supervisory Inspection Center for Explosion-Protected Instrumentation (Cert. No.: GYB21.3140X) |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | 592 |
| Detector Type | Discharge Ionization Detector (DID) |
| Detection Range | 1 ppb to <0.5% (v/v) |
| Carrier Gas | Ultra-High-Purity Helium |
| Installation Options | Benchtop or 19″ Rack-Mounted |
| Construction Options | Stainless Steel or Corrosion-Resistant Wet-Coated Surfaces |
| Compliance | Designed for ASTM D7613, ISO 8573-5, and semiconductor-grade gas purity monitoring |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GOW-MAC 5900 DID |
| Detector Type | Discharge Ionization Detector (DID) |
| Detection Range | 1 ppb to <0.5% (v/v) |
| Carrier Gas | Helium |
| Construction | Stainless Steel or Corrosion-Resistant System |
| Compliance | Designed for Industrial Process Monitoring and Trace Impurity Analysis |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | GOW-MAC 402 |
| Price Range | USD 1,500 – 7,500 |
| Brand | GOW-MAC |
|---|---|
| Origin | USA |
| Model | GOW-MAC 210 AHC |
| Detection Limit | <30 ppb |
| Carrier Gas Flow Rate | ≈30 cc/min |
| Carrier Gas Pressure | 60 psig |
| Sample Inlet Pressure | 5 psig (max 20 psig) |
| Calibration Gas Pressure | 5 psig (max 20 psig) |
| Operating Temperature | 5–40 °C |
| Power Requirement | 400 W |
| Dimensions (W×H×D) | 42.9×31.1×58.4 cm |
| Net Weight | 23 kg |
| Mounting | 19″ EIA rack (7U) or benchtop |
| Gas Fitting | 1/8″ Swagelok |
| Analog Outputs | six 4–20 mA channels |
| Input Trigger | TTL or dry contact |
| Display | 16×2 character LED-backlit LCD (99.0×24.0 mm active area) |
| User Interface | membrane keypad (non-contact digital input) |
| Linear Range | 5–120 ppb (1×10³ dynamic range) |
| Sample Introduction | dual-solenoid automated valve system with fixed-volume sampling loop |
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