2501P Remote Airborne Particle Counter

Particles Plus

Particles Plus engineers and manufactures feature-rich particle counters and air quality monitoring instrumentation. The company serves the Life Science, Food & Beverage, Pharmaceutical, Indoor Air Quality, Industrial Health & Safety, Cosmetic, Semiconductor, Aerospace and Data Storage industries.

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Description

Model 2501P

0.5 – 25.0 µm @ 0.1 CFM

The 2501P particle counter provides a range of particle size measurement from 0.5 to 25.0 μm at 0.1 CFM (2.83 LPM) flow. These sensors allow for efficient particle counting with high accuracy and resolution that meet or exceed ISO 21501-4 and JIS B9921 for the calibration of a particle counter.

These units are equipped with an internal pump and manifold and do not require an external vacuum source. Integration into a building automation or facility monitoring system is easy via standard MODBUS RS-485 communication.

Features & Benefits

Measures 0.5 μm to 25.0 μm
0.1 CFM (2.83 LPM) flow rate
Long life laser diode technology
Measures up to 4 channels of simultaneous data
Particle concentrations up to 15,000,000 Particles/ft3 @ 10% coincidence loss
Internal vacuum pump
Internal HEPA filter
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.

Specifications

Model	2501P
Size Range	0.5 to 25.0 μm
Size Channels	Factory calibrated at 0.5, 1.0, 2.5, 5.0 μm
Number of Channels	4
Counting Efficiency	50% @ 0.5 μm; 100% for particles > 0.75 μm per JIS
Flow Rate	0.1 CFM (2.83 LPM)
Concentration Limits	15,000,000 Particles/ft3 @ 10% coincidence loss
Light Source	Long life laser diode
Zero Count	< 1 count / 60 minutes (< 1 particles / 6ft3). No fault count subtraction.
Calibration	NIST traceable
Vacuum Source	Internal Vacuum Pump
Airflow	Internally monitored
Filtered Exhaust	Internal HEPA filter
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 5.66” (9.1 cm x 4.6 cm x 14.3 cm) including probes and connectors
Weight	1.94 lb. (0.88 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, and 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
Warranty	2 year limited warranty. Extended warranties available.

Diagram

CATALOGS and BROCHURES

Particles Plus 2301P and 2501P Datasheet.pdf

Download

ModBus Dashboard.pdf