GSP series Air Sampling Pump

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  • Flow volume of 50-250mL/min can be set for the inserted detector tube
  • The fixed flow function automatically regulates load changes
  • Real-time flow volume and integrated flow volume are automatically corrected to the values for 20ºC(68ºF)
  • Automatic start enables sampling to begin after a preset time
  • Automatic stop at preset time/volume, with total flow and transpired time calculations
  • Ventilation system configured for uninterrupted sampling
  • Compact and lightweight; 10 hrs. continuous operation on 2 AA batteries
  • Specially-suited detector tubes for continuous workplace sampling (10 min.)
  • Activated carbon and other solid-collecting detector tubes can be utilised

GASTEC developed a detector tube system utilising an electric suction pump in response to growing user needs for improvements in measuring time and routine in the working environment. Moreover, although the reagent filling density of detector tubes is generally high, making effective sampling with conventional electric suction pumps next to impossible at times, the compact GASTEC GSP-300FT-2 has a powerful suction performance that enables effective sampling with any of the designated detector tubes.
GASTEC's new detection tube measurement system provides performance meeting the relevant measurement criteria for the respective working environment

GSP-300FT-2 specifications
Integrated flow rate: 0-250mL/min
Real-time flow rate Parameters: 50mL/min: 0.0-34.5kPa
100mL/min: 0.0-30.0kPa
150mL/min: 0.0-25.0kPa
200mL/min: 0.0-21.0kPa
250mL/min: 0.0-16.5kPa
Selectable modes: Timer mode: Automatic shut-off of air pump at preset time; digital display of integrated flow rate
Fixed parameter mode: Automatic shut-off of air pump at preset volume; digital display of elapsed sampling time
Display: LC digital display (backlit)
Real-time Flow Rate mL/min
Integrated Flow Rate 0.000-9.999L
Elapsed sampling time 0-999min
Configuration / features: Mass flow sensor (with temperature correction) and diaphragm suction pump, dustproof, splashproof construction, automatic start function, and with initial presetting circuit for maintaining a constant volume of flow
Accuracy of real-time/integrated flow volume values: Standard deviation of +/-5% (for a minimum real-time flow of 50mL/min at a fixed temperature)
Operating Temperature / Humidity range: 0-40ºC(32- 104 ºF) 10-90%RH (no condensation)
Power source: Alkaline dry battery AA type (x 2) allows 10 hrs. continuous operation with 2 AA batteries
Dimensions: 80(W) x 40(D) x 140(H)mm
Weight: 300g(including batteries)
Accessories: Two alkaline dry battery AA type (x 2), detector tube adaptors, dustproof filters (x 5), screwdriver, black suction nipples (already attached before shipping), instruction manual, etc
Approval CE-marking(2004/108/EC)

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Optional accessories
Protective cover for detector tube
Carrying case
Enables the detector tube to be securely set up for measuring and helps to avoid possible injury to the user as well as damage to the detector tube itself
Comes with convenient carrying belt

Detector tubes for Air Sampling Pump

Gas or Vapour
to be Measured
Chemical Formula Gastec Tube
No. & Name
Range (ppm)
Acrylonitrile CH2FCHCN 191TP Acrylonitrile 0.2-12.6
Acetone CH3COCH3 151TP Acetone 25-800
Benzene C6H6 121P Benzene 250-3000 μg/m3
Chlorine Cl2 8TP Chlorine 0.05-0.6
p-Dichlorobenzene C6H4Cl2 127P p-Dichlorobenzene
100-3000 μg/m3
Ethyl benzene C6H5C2H5 122P Toluene 110-2750 μg/m3
Ethylene oxide C2H4O 163TPM Ethylene oxide 1-50
163TP Ethylene oxide 0.1-5
Formaldehyde HCHO 91P Formaldehyde 0.02-1.44
91PL Formaldehyde 0.01-0.80
91TP Formaldehyde 0.01-1.75
Hexane CH3(CH2)4CH3 102TP Hexane 2-80
Hydrogen cyanide HCN 12TP Hydrogen cyanide 0.3 - 9.0
Hydrogen fluoride HF 17TP Hydrogen fluoride 0.05-9.0
Hydrogen sulphide H2S 4TP Hydrogen sulphide 0.5 - 16.0
Isopropyl alcohol CH3CH(OH)CH3 113TP Isopropyl alcohol 20-400
Methanol CH3OH 111TP Methanol 20-300
Methyl ethyl ketone CH3COC2H5 152TP Methyl ethyl ketone 20-300
Nitrogen dioxide NO2 9P Nitrogen dioxide 0.02-0.2
Tetrachloroethylene Cl2C:CCl2 133P Tetrachloroethylene 20-720 μg/m3
133TP Tetrachloroethylene 5-80
C6H5CH3 122P Toluene
100-7000 μg/m3
122TP Toluene
Cl2C:CHCl 132P Trichloroethylene
20-1200 μg/m3
132TP Trichloroethylene
Vinyl chloride
CH2:CHCl 131P Vinyl chloride 50-1500 μg/m3
131TP Vinyl chloride 0.2-9.6
C6H4(CH3)2 122P Toluene 540-13500 μg/m3
123TP Xylene
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