About Ultrafine PM1 particulate sampler (APM 577M )
- Totally indigenous (designed, developed and made in India)
- Uses a maintenance-free brush-less pump with low noise.
- Lower sampling rate of 10 LPM reduces filter choking even in areas having high FPM levels.
- Provision for attachment to sample gaseous pollutants simultaneously.
- By locating impactor & filter holder assembly separate from all power dissipating components, the system ensures that the temperature of filter remains close to the ambient temperature and there is no chance of losing volatile fraction of PM1.
- Compact and portable for convenient field operation.
Advanced PM1 Sampling TechnologyEquipped with an aerodynamic inlet and PM1 separator, the APM 577M captures ultrafine particles efficiently. The gravimetric sampling paired with a 47 mm PTFE filter ensures precise mass concentration measurement, making it ideal for rigorous air quality studies.
Versatile Application & User-Friendly DesignThe sampler offers upright, tabletop, or floor-standing orientation, making it suitable for both laboratory and field settings. With a digital display, timer-controlled 24-hour operation, and easy-to-handle structure (approx. 25 kg weight), it caters to various monitoring needs.
Reliable Operation & Accurate ResultsIntegrated electronic flow control via a critical orifice maintains consistent sampling at 1.0 m3/hr, while the steel construction and powder-coated surface promise long-term durability. Operating efficiently in challenging temperatures and humidity, the APM 577M delivers reliable data each time.
FAQ's of Ultrafine PM1 particulate sampler (APM 577M ):
Q: How does the APM 577M sampler measure PM1 concentration in ambient air?
A: The APM 577M uses a gravimetric measurement principle, collecting airborne PM1 particles on a 47 mm diameter PTFE filter through an aerodynamic inlet. The collected sample mass is then determined by weighing the filter before and after sampling, providing an accurate PM1 mass concentration.
Q: What is the process for collecting and recording air samples with this device?
A: Air is drawn through the sampler at a controlled flow rate of 1.0 m3/hr using a critical orifice and electronic control. The device operates for a user-set period (up to 24 hours), after which the PTFE filter is removed and weighed. Data can be recorded manually or with an optional data logger.
Q: When is the ideal time to use the APM 577M sampler?
A: This sampler is well-suited for continuous or periodic air sampling, particularly during air pollution episodes, regulatory monitoring periods, or any time high-resolution PM1 data is needed. Its 24-hour timer control allows for unattended overnight or day-long operation.
Q: Where can the APM 577M be installed or used?
A: Due to its compact, upright design and air cooling system, the APM 577M can be set up on tabletops or floors in laboratories or field locations. It is designed for ambient air monitoring in a variety of environments, provided ambient conditions range between 5C-50C and up to 90% RH (non-condensing).
Q: What are the main benefits of using this particular sampler for PM1 measurements?
A: The APM 577M offers high particle collection efficiency for PM1, precise electronic flow control, low power consumption, and a quiet operation. Its durable steel, powder-coated structure, and user-friendly features ensure reliable, accurate, and consistent measurements across diverse applications.
Q: How is the flow rate maintained during sampling?
A: Flow rate is maintained at 1.0 m3/hr using a combination of a critical orifice and electronic flow controller, which continuously regulates air volume regardless of filter loading, ensuring sampling consistency and data accuracy.