Continuous Particulate Monitor with X-ray Fluorescence PX-375


There has been growing concern regarding particulate matter (PM) pollution and its affects on health. For effective preventative measures, source appointment of PM is extremely important. Therefore, indication of PM elemental concentration is also necessary in addition to PM mass concentration. PX-375 enables automatic sampling, continuous online PM quantitative and qualitative analysis and rapid air pollution source appointment.


  • 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)

* LDL (σ) is half of the LDL (2σ)

<Table 2> Detectable Elements

- 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.

Hergestellt von HORIBA


Product name

Continuous Particulate Monitor with X-ray Fluorescence



Measured object

Particulate matter (PM10, PM2.5, TSP)

Measurement content

Particulate mass concentration and element concentration


Flow rate


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


Relative humidity

0~80% RH noncondensing


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)


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


US EPA Louvered PM10 Inlet




TSP Inlet

Measurement range



±2% (against reference foil value)

Span drift

±3% (24hours)

Lowest detection limit (2σ)

±2μg/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


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