Quantachrome: AutoFlow BET+™ for Fast and High Throughput Surface Area Analysis

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The AutoFlow BET+™ is a fully automated state-of-the-art dynamic flow system designed to enable an extremely rapid evaluation of the surface areas of solid samples. Single-point or multi-point determination of surface areas using different standard methods (such as BET and STSA) is easily carried out without the need for measuring system void volumes or recalibrating signal responses. The instrument consists of one control module and one, two, or three independent analysis stations. The control module features a touchscreen and houses three built-in sample preparation stations. Pure gas inputs (nitrogen or krypton as adsorbates and helium as carrier) or, optionally, premixed gases, are automatically mixed to the desired target concentrations using built-in mass flow controllers. The system includes novel MEMS-TCD sensors and all standard accessories needed for its operation.

 

Features
Exceptional Speed

  • Single point BET areas in < 5 min/sample.
  • Multipoint BET areas in < 15 min/sample.
  • No need for pre- or post-calibration.

Superior Throughput

  • Up to 3 single point BET areas in < 5 min.
  • Up to 3 multipoint BET areas in < 15 min.
  • Up to 36 BET area analyses per hour.

Widest Analytical Range

  • Surface areas between 0.1 and >3,000 m2/g.
  • Surface areas as low as 0.05 m2 in cell with Kr.
  • Isotherm data between 0.005 and 0.95 P/Po.

 

Specifications- Technical
Feature
Feature Detail
Specification
Accuracy Percent of Target ± 1% *
Repeatability Same Sample in Same Station ± 0.2%
Reproducibility Between Different Units ± 0.5%
Lower Limit BET Surface Area [m2/g] 0.01
Upper Limit BET Surface Area [m2/g] No limit
Lower Limit N2 Surface Area [m2] 0.1
Lower Limit N2 Surface Area [m2] 350
Lower Limit Kr Surface Area [m2] 0.05
Speed Single Point BET, 1 sample [minutes] < 5
Speed Single Point BET, 3 samples [minutes] 5
Speed 3-Point BET, 1 sample [minutes] < 15
Speed 3-Point BET, 3 samples [minutes] 15
Degasser Max. Temp. Degree Celsius [˚C] 350 (450**)
Sample Capacity Per Analysis Station One Cell
Analysis Stations Per Control Module up to 3
Multiple System Paths Per Control Module 3
Mass Flow Controllers Per Analysis Station 2
Pressure Sensors Per Analysis Station 1
      * As compared to vacuum/volumetric data.
    ** Optional, using quartz glassware.

 

 

Physical
Control Module: with one
analysis station		 Control Module: with two
analysis stations		 Control Module: with three
analysis stations
Height: 24 in. (62 cm) 24 in. (62 cm) 24 in. (62 cm)
Width: 16 in. (41 cm) 23 in. (60 cm) 31 in. (78 cm)
Depth: 22 in. (55 cm) 22 in. (55 cm) 22 in. (55 cm)
Weight: 75 lbs. (34 kg) 111 lbs. (50 kg) 147 lbs. (67 kg)

Electrical
Voltage: 100 – 120 VAC or  220 – 240 VAC
Frequency: 50/60 Hz
Power (nominal): 45 VA
Power (max): 350 VA
Connection: Grounded, single-phase outlet
Power Cord: IEC 60320 C13 (3-conductor 10A rating min)

Environmental
Normal Environment Conditions.
Temperature: 5–40°C
Relative Humidity: Up to 80 % (non-condensing)
Altitude: Up to 4000 m
Pollution degree: POLLUTION DEGREE 2
IP Rating: IP20
IK Rating: IK10 HAMMER TEST (IEC 60068-2-75)
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