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| Brand | Microtrac |
|---|---|
| Origin | Japan |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | BELMASS II |
| Instrument Type | Chemisorption Analyzer with Integrated Online MS Detection |
| Gas Inlet Ports | Up to 16 |
| Temperature Stability | ±0.001 °C |
| Supported Techniques | TPD, TPR, TPS, Pulse Titration, BET Surface Area Analysis (via coupled gas dosing) |
| Mass Range | 1–200 amu |
| Detector | Faraday Cup / Continuous Dynode Electron Multiplier (C-SEM) |
| Minimum Detectable Concentration | <1 ppm (gas-dependent) |
| Scan Speed Options | Auto, 0.01–10 sec per amu (selectable) |
| Detection Channels | Up to 16 simultaneous mass channels |
| Sample Interface | Heated capillary transfer line (up to 300 °C), integrated dry scroll pump |
| Brand | Microtrac |
|---|---|
| Origin | Japan |
| Model | BELCAT II |
| Instrument Type | Chemisorption Analyzer |
| Measurement Principle | Dynamic Flow Method |
| Number of Gas Inlets | 8 (Pre-treatment), 3 (Carrier), 8 (Pulse), 8 (Mixing) |
| Temperature Range | Ambient to 1200 °C |
| Isothermal Stability | ±1 °C |
| Heating Rates | 50–500 °C at 70 °C/min |
| Pressure Range | Atmospheric |
| Key Functions | TPD, TPR, TPO, TPRx, Pulse Chemisorption, Single-point BET, Breakthrough Curve Analysis |
| Gas Compatibility | He, Kr, N2, Ar, O2, H2, CO, CO2, NH3, H2O, NO, SO2, H2S, CH3OH, C2H5OH, Toluene, Benzene, and other reactive/volatile species |
| Thermal Conductivity Detector (TCD) | Quad-wire configuration with W–Re or gold-plated tungsten filaments |
| resolution | 1 μV |
| Mass Flow Controllers (MFCs) | 3–4 units |
| Sample Volume Capacity | 0–1 cm³ |
| Pulse Loop Volumes | 0.3 cm³, 1 cm³, or custom |
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