Air Sampling Pump GSP-501FT
GASTEC Automatic Air Sampling Pump GSP-501FT
Automated. Constant Flow. Personal & Area Air Sampling.
The GASTEC GSP-501FT is an advanced personal and area automatic air sampling pump engineered for accurate workplace air monitoring. Equipped with real-time mass flow rate control and automatic suction pressure compensation, it maintains a strictly constant flow rate through GASTEC detector tubes and charcoal/sorbent tubes regardless of filter load or temperature fluctuations.
Real-Time Constant Flow Control
Internal mass flow sensor actively compensates for pressure drops across sampling media.
Dual Operating Modes
Operates in Timer Mode (1 min to 30 hours) and Volume Mode (0.010 to 900 L) with auto-shutoff.
Backlit Digital LCD
Shows real-time flow rate, elapsed time, accumulated volume, and battery status at a glance.
Program Memory Storage
Stores up to 5 custom sampling programs for repeatable multi-cycle testing workflows.
Compact, Clip-On Build
Ultra-lightweight design clips securely to a technician's belt or lapel for personal exposure monitoring.
Long-Life Battery Performance
Operates on standard rechargeable or alkaline AA batteries with extended runtimes.
Effortless Operation. Engineered for Continuous Precision Sampling.
Mount Sampling Tube
Insert GASTEC detector tube or sorbent tube into the protective rubber holder connected to pump inlet.
Select Flow & Duration
Use intuitive digital push buttons to choose your target flow rate (50–500 mL/min) and timer/volume target.
Start & Auto-Stop
Press Start; the pump runs with active flow regulation and automatically powers down once the target is reached.
Micro-Diaphragm Core
High-efficiency diaphragm pump mechanism generates smooth, non-pulsing vacuum suction.
Automatic Flow Compensation
Microprocessor adjusts motor voltage dynamically to counter pressure resistance increases during sampling.
Integrated Volume Totalizer
Accurately calculates total sampled air liters to support immediate ppm or mg/m³ compliance calculations.
Occupational Hygiene & TWA Monitoring
Conducts 8-hour Time-Weighted Average personal exposure monitoring on workers in chemical plants.
Pharmaceutical Cleanrooms
Performs low-volume, continuous sampling for trace solvent vapors and formaldehyde sterilants.
Welding Fume & Metal Vapor Studies
Pairs with filter cassettes and sorbent tubes to measure hazardous airborne metal fumes.
Indoor Air Quality (IAQ) Audits
Evaluates commercial buildings and schools for VOCs, formaldehyde, and chemical outgassing.
Fumigation Residuals in Warehouses
Samples low-concentration phosphine and methyl bromide in grain silos and storage facilities.
Laboratory Chemical Hood Verification
Tests containment and air capture efficiency across research and analytical chemical hoods.
The Specs Speak for Themselves
Engineered accuracy figures for the GASTEC GSP-501FT Automatic Personal Air Sampler.
±5% Accuracy
instantaneous flow rate precision maintained across 50 to 500 mL/min range
30 Hours
maximum continuous timer sampling capacity for extended multi-shift exposure assessments
5 Presets
on-board program memories allow quick one-touch switching between standard sampling protocols
GASTEC GSP-501FT Technical Specifications
Flow ranges, operating modes, battery life, and dimensional specifications.
| Specification Parameter | Details |
|---|---|
| Product Model | GASTEC GSP-501FT Automatic Air Sampling Pump |
| Flow Rate Range | 50 to 500 mL/min (instantaneous settable) |
| Flow Accuracy | ±5% of set flow rate |
| Operating Modes | Timer Mode (1 min–30 hrs) / Volume Mode (0.010–900 L) |
| Display | LCD digital with backlight (Flow rate, accumulated volume, time) |
| Pump Type | High-efficiency micro-diaphragm with mass flow sensor |
| Power Source | 2 × AA alkaline or Ni-MH rechargeable batteries |
| Dimensions | Approx. 80 (W) × 140 (H) × 53 (D) mm |
| Weight | Approx. 300 g (including batteries) |
| Included Accessories | Tube holder, carrying case, batteries, instruction manual |
