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Prima BT – Bench Top Process Mass Spectrometer

Achieve high scanning speeds and reproducible measurements with the Thermo Scientific™ Prima BT Bench Top Process Mass Spectrometer. Specifically designed for process development laboratories, this real-time process gas analyzer is a highly precise, multi-port magnetic sector analyzer.


The Prima BT mass spectrometer is an industrial laboratory gas analyzer based on scanning magnetic mass spectrometry. Designed for continuous operation in process environments, the Prima BT mass spectrometer is simple to operate and easy to maintain.
  • Magnetic scanning technology
  • 16-port fast multi-stream sampler (RMS)
  • 6-port automatic calibration manifold
  • High analytical accuracy and stability
  • Thermo Scientific™ GasWorks software
Specifications Describe
Ion source Enclosed electronics Actuator with dual filament, temperature control (settable within 120-200 degrees Celsius, to ±0.1 degrees Celsius)
Analyzer Type Scanning laminated electromagnet, radius 6cm, deflection angle 80
Volume range Adjustable, default is 1-150 amu at ion acceleration voltage 1000 eV, (at ion acceleration voltage 750 eV, mass range is 1-200 amu)
Solution Switchable between two receiver resolution slots, 60 (1 mm) and 20 (4 mm) resolution capacities are standard. Optional 140/85 (0.36 mm/0.69 mm) can be mounted. or 100/45 (0.56 mm/1.45 mm) or 140/45 (0.36 mm/1.45 mm)
Large-scale stabilization Measured at 28 < 0.013 amu in 24 hours
peak shape At resolution 60, ratio of flat vertex width (99% height width) to base vertex width (5% height width) 0.5
Sensitivity <250 ppm for 27/28 amu
Detector Faraday and optional dual Faraday/SEM probes
input Temperature controlled microcapillary with leakage and molecular bypass (standard configuration)
Vacuum system Turbo Molecular Pump and External Rotary Pump
Also Turbo Molecular Pump and Internal Diaphragm Pump
Sample flow Measured and recorded digitally for each stream for any instrument with an RMS . option
Accuracy Relatively <0.1% external rotary pump (typical, application dependent)
Linear <1% relative change in concentration over a decade (typical, application dependent)
Dynamic range 10 ppb – 100% (theoretical, application dependent) external rotary pump only
Stability <1% relative for 1 week (typical, application dependent)
Electrical requirements 115 Vac (±5Vac) or 230 Vac (±10 Vac)
Dimensions (HxWxD) 52 cm (20.5″) × 79 cm (31.1″) × 47 cm (18.5″)
100 kg (200 lbs) depending on configuration