Advanced Mixing Condensation Particle Counter

Model 9403


The Model 9403 Advanced Mixing Condensation Particle Counter allows you to perform ultra-fast total particle number concentration measurements on-board Unmanned Aerial Vehicles (UAV) and other mobile platforms where high time resolution is critical. The compact size, low weight and minimal power use make it a great solution for applications requiring portability. The robust design withstands the G-forces of a UAV catapult launch, successfully taking data during the subsequent flight. The aMCPC is used as the detector in the Model 9404 miniature SEMS to perform aerosol number size distribution measurements. Deploy the 9403 in conjunction with our other portable instruments to get a more complete picture of the aerosol under study.

Key features:

  • 180 ms ultra-fast time response
  • 7 nm 50% detection diameter
  • Portable, lightweight, low power use
  • Self-contained with on-board data storage
  • No external pump required
  • Independently proven 100% counting efficiency
  • Tilt tested anti-flooding design
  • Field tested on unmanned aerial vehicles (UAVs)

Technical Specs

9403 aMCPC Technical Specs

parameter value
D50 7.0 nm
Particle size range 7-2,000 nm diameter
Maximum Concentration 100,000 cm⁻³
Coincidence corrected concentration uncertainty @ 100,00/cc +/- 8%
Sample flow 0.36 or 0.72 lpm
Response time 180 milliseconds
Background <0.001 cm⁻³
Butanol use 1.9 ml/hr
Reservoir capacity 250 ml (1000 ml available)
Data output RS-232, BNC
Operating pressure range 0.2-1.0 atm NOTE¹
Operating temperature range -20°C to 38°C
Operating humidity range 0 - 95% RH non-condensing NOTE²
Size 5.8 x 8 x 5.3 in/14.7 x 20.3 x 13.5 cm
Weight 6 lbs/2.7 kg
Supply voltage 12 VDC
Power 50 watts
1. Operation at pressures <850mbar requires factory installed saturator flow control
2.. MCPC-Dryer option recommended for high RH operation.

Copyright ©2017 All specifications are subject to change without notice. BMI assumes no responsibility for inaccuracies in this document or for any obligation to update information in this document. BMI reserves the right to change, modify, transfer or otherwise revise this publication without prior notice.

*Some products may be shown with optional accessories, which are sold separately. Items shown may not be to scale.

Applications and Solutions

  • Mobile platform sampling: UAVs, Balloons, Aircraft, Vehicles
  • Rapid DMA scanning number size distribution measurements as part of Model 9404 mSEMS
  • Ambient particle concentration measurements
  • Climate change field studies
  • Air quality monitoring
  • Aerosol health impacts studies


Integrated software drives each ACCESS module from the inside – the built-in microprocessor and sensors are able to sense, control, and report on instrument performance. A serially-communicated stream of data provides real-time user access to all the fundamental operating parameters and measurement values. An on-board micro-SD card can be used to store data locally.

Add the Base Module option to your ACCESS package to benefit from a graphical user interface (GUI) that allows you to easily interact with the instrument so you can change parameter settings, configure outputs and view measurements on the screen of the PC. Multiple ACCESS modules can be connected via a micro-USB hub to the GUI allowing the system configuration to be easily changed. This feature also allows each of the connected modules to be remotely controlled via a single RS232 connection.The GUI software automatically recognizes which instruments are attached to the Base Module and adjusts accordingly. It is provided to facilitate configuration and monitoring of the ACCESS instruments on the

The GUI software automatically recognizes which instruments are attached to the Base Module and adjusts accordingly. It is provided to facilitate configuration and monitoring of the ACCESS instruments on the ground, but is not required to operate the unit and acquire data. The external GUI software is only available pre-loaded on a ruggedized tablet PC supplied by BRECHTEL.

What’s Included

  • Model 9403
  • LED Display
  • External 12 VDC power supply
  • Communication and power cables
  • Operating manual
  • Weatherproof shipping case


The following optional accessories are available:

9403 aMCPC Accessories

Part Number Description
MCPC-P115 External vacuum pump, 115 V
MCPC-P230 External vacuum pump, 230 V
ACC-PC Computer with 94XX series control software
ACC-PWR External 12 VDC power supply for ground operation of any 94XX series instrument
ACC-MCKit Maintenance kit for 9403-aMCPC
8008 Particle round jet impactor with 0.5 μm cut size, 0.7 lpm flow
8009 Particle round jet impactor with 1.0 μm cut size, 0.7 lpm flow
MCPC-BOT Large 1000 ml butanol fill bottle for MCPC
MCPC-Dryer Sample flow drying package MCPC

Related Products

Contact us to discuss how Brechtel can help you.