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Model 2501 and 2301 Remote Airborne Particle Counters

Brand: Particles Plus, Inc

The 2301 and 2501 particle counters provide a range of particle size measurement from 0.3 or 0.5 to 25.0 μm at a flow rate of 0.1 CFM - 2.83LPM.

These sensors allow for efficient particle counting with specifications that exceed the ISO 21501-4 and JIS B9921 calibration standards.

These sensors have 4 fixed particle size channels and are equipped with an integral critical orifice and flow sensor to provide a stable flow rate from an external vacuum source.

Integration into a building automation or facility monitoring system is easy via isolated RS-485 Modbus communication.
Features
  • 0.1CFM - 2.83LPM Flow Rate
  • Long Life Laser Diode Technology
  • Measures Up to 4 Channels of Simultaneous Data
  • Particle Concentrations Up to 15,000,000 Particles/ft³ at 10% Coincidence Loss
  • Internal Critical Orifice
  • Connect Using Modbus RTU/ASCII Over Isolated RS-485
  • Complies with ISO 21501-4 and JIS B9921 Standards
  • Easy to Clean and Wipe Down with Minimal Particle Traps
  • Versatile Mounting Options
  • User-configurable Alarm Light
  • LED Indicators
  • Seamless Integration into a Facility Monitoring System
  • Lightweight Stainless Steel Enclosure
  • 2 Year Warranty - Extended Warranties Available

1 - 2 of 2 Part Numbers
PP-AT-2301-1
PP-AT-2301-1
Model 2301 Remote Airborne Particle Counter
  • Size Range: 0.3 to 25.0 μm
  • Size Channels: Factory calibrated at 0.3, 0.5, 1.0, 5.0 μm
  • Counting Efficiency: 50% at 0.3 μm; 100% for particles >0.45 μm per JIS
PP-AT-2501-1
PP-AT-2501-1
Model 2501 Remote Airborne Particle Counter
  • Size Range: 0.5 to 25.0 μm
  • Size Channels: Factory calibrated at 0.5, 1.0, 2.5, 5.0 μm
  • Counting Efficiency: 50% at 0.5μm; 100% for particles >0.75 μm per JIS
1 - 2 of 2 Part Numbers

Specifications

Number of Channels

  • 4

Flow Rate

  • 0.1 CFM
  • 2.83 LPM

Concentration Limits

  • 15,000,000 Particles/ft3 at 10 % coincidence loss

Light Source

  • Long life laser diode

Zero Count

  • < 1 count / 60 minutes
  • < 1 particles /6/ft3

Calibration

  • NIST traceable

Vacuum Requirements

  • External vacuum > 15” (38.1 cm) of Hg

Airflow

  • Internally monitored

Alarm

  • User configurable alarm light

Communication Modes

  • Modbus RTU or ASCII outputs over isolated RS-485

Standards

  • ISO 21501-4 and JIS B9921

Instrument Calibration

  • Recommended minimum once per year

External Surface

  • Stainless Steel

Dimensions

  • L x W x H
  • 3.59” x 1.83” x 5.01”
  • 9.1 cm x 4.7 cm x 12.7 cm
  • Including probes and connectors

Weight

  • 1.65 lb
  • 0.75 kg

Accessories

  • Wiring Connector
  • Operating manual on USB flash drive

Optional Accessories

  • Power Supply
  • Remote Mounting Bracket
  • Stainless Steel Barbed Isoprobe - 0.1 CFM/2.83 LPM
  • Purge Filter Assembly
  • Sample & Vacuum Tubing

Sample Time

  • 1 second to 18 hours

Power

  • 9 - 24 Vdc
  • < 2.5 watts

Operating Conditions

  • 41° to 104° F (5° to 40° C) / 20 % to 95 % non-condensing

Storage Conditions

  • 32° to 122° F (0° to 50° C) / Up to 98 % non-condensing

Documentation

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