PX-375 Multi metal, Continuous Particulate Monitor with X-ray Fluorescence

Continuous elemental and particulate mass analysis with automatic sampling

There has been a growing concern regarding particulate matter (PM) pollution and its effects on health. For effective preventative measures, the determination of source PM concentration is extremely important. Therefore, indication of PM and elemental concentrations is critical. The PX-375 analyzer employs automatic sampling, continuous on-line PM quantitative and qualitative analysis for rapid air pollution measurements.

  • Continuous analysis of PM mass and the elemental concentration by a single unit directly in the field.
  • Adoption of world proven technologies: X-ray fluorescence & Beta-ray attenuation.
  • HORIBA’s filter tape provides excellent sensitivity and precise performance
  • Installed CMOS camera enables observation of collected particulate sample on the filter.
  • User friendly display and operations

<Table 1> Lowest Detection Limit (Example) (2σ) (ng/m3)

lowest detection limit

* LDL (σ) is half of the LDL (2σ)

<Table 2> Detectable Elements

detectable elements

O – Standard parameters, calibrated by standard calibration materials.
* For measurement of element concentration calibration by standard calibration materials is needed.
* Please contact separately about elements, marked as non-detectable.

The specifications, appearance or other aspects of products are subject to change without notice.  Please contact us if you prefer the demo to consider the purchase of this product.

Industries examples:

  • Iron and steel production
  • Oil refinery
  • Petrochemical
  • Everything environmental related

Application example:

  • Chemical speciation of particulate matter from steel and refining plants


Product name Continuous Particulate Monitor with X-ray Fluorescence
Model PX-375
Measured object Particulate matter (PM10, PM2.5, TSP)
Measurement content Particulate mass concentration and element concentration


Flow rate 16.7L/min
Sampling pump Linear drive system, externally installed
Filter tape None-woven PTFE fabric filter
Spot tape interval 20/25/50/100mm selectable
Filter tape replacement interval Approx. 1 month (In case of 100mm spot interval)
Ambient operation temperature 10˚C~30˚C
Relative humidity 0~80% RH noncondensing
Altitude 1000m or less
Power supply AC100V~240V ±10%, 50/60Hz±1%
Power consumption Approx. 400VA
External dimension 430mm(W)×550mm(D)×285mm(H) (without sampling pipe and measurement head)
Weight Approx. 40kg (Without sampling pipe and measurement head)
Data output CSV file (Average PM mass and elemental concentration)
External connection EthernetTM, USB, RS-232C* (option)

*Please consult about communication and instrument composition separately.

Mass analyzer unit

Measurement method Beta-ray attenuation
PM10 US EPA Louvered PM10 Inlet
PM2.5 BGI VSCCTM Cyclone
Measurement range 0~200/500/1000μg/m3
Repeatability ±2% (against reference foil value)
Span drift ±3% (24hours)
Lowest detection limit (2σ) ±4μg/m3 (24hours)
Sampling and measurement cycle 0.5/1/2/3/4/6/8/12/24 hours

Element analyzer unit

Measurement method Energy dispersive X-ray spectroscopy
Detectable elements See Table 2 “Detectable Elements”.
Standard parameter is S, Ti, Cr, Mn, Ni, Cu, Zn, Pb, Al, Si, K, Ca, V, Fe, As.
Primary X-ray filter Automatic switching for light metals/heavy metals
Tube voltage Automatic switching for 15kV/50kV
Detector SDD (Silicon Drift Detector)
Sample image CMOS camera
Lowest detection limit (2σ) Recommended EPA Method IO 3.3
See Table 1 “Lowest Detection Limit (Example)”
Measurement range Up to measurement time
Analysis time 1000s (16.6 min) as standard
100 / 200 / 500 / 1000 / 2000 / 5000 / 10000s selectable
Calibration material for X-ray intensity for standard parameter NIST SRM 2783, other materials (option)
Safety functions for X-ray Internal lock system
Key switch
X-ray indication light

Read more about XRF-technology




Automotive, Chemical, Petrochemical, Pharmaceutical & Bio Pharma, Steel Plants




Ag – Silver, Al – Aluminium, As – Arsenic, Au – Gold, Ba – Barium, Bi – Bismuth, Br – Bromine, C2H4O – Acetaldehyde, Ca – Calcium, Cd – Cadmium, Ce – Cerium, Cobalt, Cr – Chromium, Cs – Caesium, Cu – Copper, Fe – Iron, Ga – Gallium, Ge – Germanium, HF – Hydrogen Fluoride, Hg – Mercury, I – Iodine, In – Indium, K – Potassium, La – Lanthanum, Lr – Lawrencium, Mn – Manganese, Mo – Molybdenum, Nb – Niobium, Ni – Nickel, P – Phosphorus, Particles, Pb – Lead, Pd – Palladium, PM – Particulate Matter, PM1, PM10, PM2.5, PM4, PN – Particulate Number, Pt – Platinum, Rb – Rubidium, Re – Rhenium, Rh – Rhodium, Ru – Ruthenium, Sb – stibium, Se – Selenium, Sn – Stannum, Span Gas, Sr – Strontium, Ta – Tantalum, Te – Tellurium, TI – Titanium, TSS – Total Suspended Solids, Turbidity, Y – Yttrium, Zr – Zirconium

Analysis Principle

Beta-ray attenuation, XRF – X-ray fluorescence


Brake dust measurements, Environmental Protection

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