9301 Remote Airborne Particle Counter

Particles Plus Remote Particle Counters

9000 Series vs. 2000 Series Comparison

Particles Plus RTU9301 cropped

9301 Modbus

0.3 – 25.0 µm @ 0.1 CFM

The 9301 Modbus particle counters provide a range of particle size measurement from 0.3 to 25.0 μm at a flow rate of 0.1 CFM (2.83 LPM). These sensors allow for efficient particle counting with specifications that exceed the ISO 21501-4 and JIS B9921 calibration standards.

These sensors have 6 user-selectable particle size channels (up to 30 channels optional) 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.

Measures 0.3 µm to 25 µm
0.1 CFM (2.83 LPM) flow rate
Long life laser diode technology
Measures up to 30 channels of simultaneous data
Particle concentrations up to 10,000,000 Particles/ft3 @ 10% coincidence loss
Internal critical orifice
User-selectable channel sizes
Stores up to 65,000 sample records for on-board data redundancy
(Optional) temperature and relative humidity probe available
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
Alarm light
LED Indicators
Seamless integration into a facility monitoring system
Lightweight stainless steel enclosure
2 year limited warranty. Extended warranties available.
Size Range0.3 µm to 25 µm
Size ChannelsFactory calibrated at 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 µm
Number of Channels6 channels (up to 30 optional)
Counting Efficiency50% @ 0.3µm; 100% for particles > 0.45 µm per JIS
Flow Rate0.1 CFM (2.83 LPM)
Concentration Limits10,000,000 particles/ft3 @ 10% coincidence (per ISO 21501-4), 20,000,000 particles/ft3 @ 10% coincidence (as tested and validated)
Light SourceLong life laser diode
Zero Count<1 count / 60 minutes (<1 particles / 6 ft3). No fault count subtraction.
AlarmsChannel alarms on Raw counts, concentrations or mass (alarms on environmental sensors optional)
CalibrationNIST traceable
Vacuum RequirementsExternal vacuum > 15” (38.1cm) of Hg
AirflowInternally monitored
Configuration/DownloadUSB mini-B
AlarmAlarm LED ring
Communication ModesMODBUS™ RTU or ASCII outputs (over isolated RS-485)
Environmental Sensor(Optional) Temp and RH probe 32º to 122ºF (0º to 50ºC) ±1ºF (0.5ºC), 15-90% ±2% relative humidity
StandardsISO 21501-4 and JIS B9921
Instrument CalibrationRecommended minimum once per year
External SurfaceStainless steel
Dimensions (L x W x H)3.59” x 1.83” x 5.01” (9.1 cm x 4.6 cm x 12.7 cm) including probes and connectors
Weight1.08 lb. (494 grams)
AccessoriesOperating manual on USB flash drive, isokinetic probe, power supply and cable
Optional AccessoriesPrinted manual barb fittings, mounting bracket and sample tubing, IMS-RT monitoring system
Buffer Memory65,000 sample records (rotating buffer) including particle count data and environmental data
Sample Time1 second to 99 hours
Power9 - 24 VDC (< 1.5 watts)
Operating Conditions41° to 104°F (5° to 40°C) / 20% to 95% non-condensing
Storage Conditions32° to 122°F (0° to 50°C) / Up to 98% non-condensing
Warranty2 year limited warranty. Extended warranties available.

Particles Plus 9301 and 9501 Diagram

AS 99001 5000 Series Remote Mounting Bracket
AS 99002A Filter Assembly 0.1 CFM 2.83LPM
EE 80081 Power Supply 12V 2A 100 240 VAC
PS 12022 Isoprobe Barbed 0.1 CFM 2.83 LPM Stainless

Remote Mounting Bracket 2000/9000 Series
Part Number: AS-99081

Filter Assembly
0.1 CFM (2.83 LPM)
Part Number: AS-99002A

Power Supply 12VDC @ 1Amp
100-240 VAC 50/60Hz
Part Number: EE-80148

Isoprobe Barbed 0.1 CFM (2.83
LPM) Stainless Steel
Part Number: PS-12022

AS 99036 Tubing .250 OD .125 ID Bev A Line XX per foot
AS 99018 Sample Tubing .250 OD x .125 ID
AS 99036 Tubing .250 OD .125 ID Bev A Line XX per foot
AS 99019 Sample Tubing .375 OD x .250 ID

Tubing 1/4" OD (1/8" ID)
Bev-A-Line XX per foot
Part Number: AS-99036

Tubing 1/4" OD (1/8" ID)
Urethane per foot
Part Number: AS-99018

Tubing 3/8" OD (1/4" ID) Bev-A-
Line XX per foot
Part Number: AS-99037

Tubing 3/8" OD (1/4" ID) Urethane per foot
Part Number: AS-99019

AS 99088A 1
PP Manual 1
PP Manual 1
MN 2400X Instrument Management Software User Manual

USB to RS-485 Adapter
Part Number: AS-99088A

Series with Pump
User Manual (Printed)
Part Number: MN-24026P

Series Validation
Part Number: MN-24032

9000/9000P Series
User Manual and PPD-9K Software (USB Key)
Part Number: MN-24026

USB to USB Mini 1

USB A to Mini Cable 6' (1.8m)
Part Number: AS-99078