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Met One- E-SEQ-FRM SEQUENTIAL REFERENCE PARTICULATE SAMPLER

The Met One E-SEQ-FRM is a reference-grade air sampler designed for accurate, automated collection of particulate matter (PM2.5, PM10, and PM10-2.5) on filter media for regulatory and scientific air quality monitoring.

  • Regulatory Approved: Certified as US-EPA Reference Method for PM2.5, PM10, and PM10-2.5, and approved for international use (including Korea).
  • Precise & Controlled Sampling: Uses active flow control at 16.67 LPM with full temperature, pressure, and flow calibration.
  • Sequential & Automated: Supports multi-event sampling with up to 132 filters, reducing manual handling and site visits.
  • Reliable Data Management: Built-in storage for over 130 days of data, with easy access via keypad, USB, or RS-232 interfaces.

Description

The Met One E-SEQ-FRM Sequential Reference Particulate Sampler is a high-accuracy, regulatory-approved air sampling system designed for long-term ambient particulate monitoring. Engineered for multi-event, sequential sampling, it automatically collects airborne particles onto filter media, reducing the need for frequent site visits while ensuring consistent and traceable data collection. The sampler meets multiple international reference standards, including US-EPA PM2.5, PM10, and PM10-2.5 FRM methods, as well as Korea certification, making it suitable for compliance monitoring and scientific research applications.

Built for reliability in demanding outdoor environments, the E-SEQ-FRM features active flow control at 16.67 LPM with precise calibration for temperature, pressure, and flow to maintain reference-grade accuracy. Its large internal memory supports more than 130 days of interval data and up to 132 filter records, while flexible data retrieval via keypad, RS-232, USB, or flash drive ensures easy operation and data management. With a wide operating temperature range and robust construction, this sampler from Met One is an ideal solution for ambient air quality monitoring, environmental assessment, and climate research programs requiring dependable, standards-compliant particulate sampling.

Features

  • Regulatory Approved: Certified as US-EPA Reference Method for PM2.5, PM10, and PM10-2.5, and approved for international use (including Korea).
  • Precise & Controlled Sampling: Uses active flow control at 16.67 LPM with full temperature, pressure, and flow calibration.
  • Sequential & Automated: Supports multi-event sampling with up to 132 filters, reducing manual handling and site visits.
  • Reliable Data Management: Built-in storage for over 130 days of data, with easy access via keypad, USB, or RS-232 interfaces.

Specification

Method Multi-event, sequential sampling of ambient air onto filter media
Regulatory Designations US-EPA PM2.5 Reference Method (RFPS-0717-245)

US-EPA-PM10

Reference Method (RFPS-0717-246)

US-EPA PM10-2.5 FRM Reference Method (RFPS-0717-247)

Korea Certification (APSC1-2016-01)

Filter Holders and Media 47 mm filter For US-EPA PM2.5 and PM10-2.5 sampling: Teflon 2µm pore size membrane filter

(regulation required). For US-EPA PM10 reference sampling Pallflex TX-40 quartz filter and

Teflon media.

Sample flow Active flow control for 16.67 LPM. Sampled volume reported under actual and standard

conditions

Calibration Temperature, barometric pressure and multi-point flow
Internal Data Storage More than 130 days of interval data with 5 minute time resolution 132 filter records
Data Input/Output Keypad/display for data retrieval and programming. RS232, USB serial and USB flash drive

interface for data download

Operational Temperature -30°C to +50°C
Power Requirements Physical 100-240 VAC 50/60 Hz 1.4 amps
Dimensions (inches) without System/Pump: 14.4 (w) x 14 (d) x 27 (h) Stand (at base)
PM10 inlet attached 24.5 (w) x 23.5 (d) x 29.6 (h) Total (at base) 23.5 (w) x 24.5 (d) x 56.6 (h)
Weight: System/Pump 45 lb. Stand 10.5 lb, PM10 Inlet 5.3 lb

Applications

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