Air Quality Meter PCE-PQC 10EU (ISO 21501-4)

Air Quality Meter PCE-PQC 10EU (ISO 21501-4)
Instrument Laboratorium

Deskripsi produk
AIR QUALITY METER PCE-PQC 10EU IN COMPLIANCE WITH ISO 21501-4
Measurement of particle sizes up to 25 μm / up to 6 parallel measuring channels /
internal memory / reporting according to standard 14644-1, EU GMP Annex I, FS 209E /
extrapolation of the mass concentration in μg / m³ / Ethernet, USB or (optional) WIFI connection

With the help of a particle counter calibrated in compliance with ISO 21501-4, the size and number of particles in gases can be determined. It often goes about optical particle counters in accordance with the scattered light method. The essential components of the particle counter with appropriate measuring method are a measuring cell with a light source and detector. The particles are sucked in by means of a vacuum pump and are passed through the measuring chamber. In principle, these components are arranged in such a way, that no light gets on the detector as long as there is no particle in the measuring volume or in the measuring chamber. If a particle passes through the measuring chamber, the light is deflected towards the detector because of the optical effects such as diffraction, scattering or reflection, which causes formation of a signal at the detector depending on the size of the particle.

In order to be able to reliably determine the relationship between the signal strength at the detector and the particle size, particle measuring devices for demanding applications, such as e.g. classification of the clean rooms calibrated in compliance with the standard 14644-1 according to the specifications ISO 21501-4. ISO 21501-4 is an internationally established standard for ensuring the measurement accuracy and comparability of the measurement results of different particle counters.

ISO 21501-4 is one of 4 sections of the ISO standard for particle size distribution. The main goal of introducing the new version in 2007 was to improve the accuracy of the measurements and exclude, or at least significantly eliminate the differences occurring in the result of measurements by different devices.

ISO 21501-4 uses several parameters, the comparison of which provides meaningful results. These parameters include the size calibration of each channel, the corresponding channel error (false count rate), the counting efficiency and the size resolution. In addition, the sampling flow rate in the particle counter is checked to control the performance of the vacuum pump. The basic requirement for the calibration according to ISO 21501-4 is the availability of the pulse height analyser (PHA). This pulse height analyser must either be integrated directly into the device or, due to the connection to the particle counter, be able to analyse the signal strengths and raw signals within the individual size channels. Only then the calibration and possibly the necessary adjustment of the individual channels is feasible.

The PCE - PQC series particle counters from PCE Instruments meet all the above-mentioned requirements for the calibration in compliance with ISO 21501-4. The devices are operated via a 4.3" colour touch display. The measurement data can be stored in a large memory, evaluated by means of the software and, for example, presented in the form of ISO14644-1 or EU GMP reporting format. The measuring devices can detect different particle sizes in the range between 0.3 ... 25 μm and determine the mass concentration. The handheld and table measuring devices are equipped with an internal vacuum pump with an automatic flow rate control. The remote particle collectors are connected to an external source.
APPLICATIONS
Fine dust originates in the natural sources such as forest fires, volcanic eruptions, sea salt, whirled sand, plants or even microorganisms. Nowadays, due to the increasing industrialization, humans also contribute a lot to locally significantly increased particulate matter emissions. Through traffic, energy production, agriculture and industry, the fine dust levels are increasing immensely. No matter whether the origin is natural or man-made, in various areas an increased particle concentration or the presence of the particles is undesirable and harmful.
Fine dust gauges calibrated in compliance with ISO 21501-4 are suitable for numerous applications in the field of clean room technology, such as the monitoring of clean workbenches or clean rooms, clean room qualification or filter control and monitoring in the area of supply air and exhaust air systems. Also, in the field of environmental metrology, building renovation or industrial manufacturing of electronic components as well as in the area of the pharmaceutical industry, ISO 21501-4 calibrated particle counters guarantee product quality and process reliability.
HIGHLIGHTS
- Internal memory
- Particle sizes up to 25 μm
- Color display
- Handy
- 6 measuring channels
- ISO 14644-1, EU GMP Annex I, FS 209E
- Mass concentration
- Ethernet, USB
- Incl. temperature and humidity sensor
- Incl. calibration certificate traceable to NIST ISO 21501-4 and JIS B9921
SPECIFICATION
Measuring range
0.3 ... 25 μm
Measuring channel sizes
Factory calibrated at 0.3, 0.5, 1.0, 2.5, 5.0, 10.0 μm
Counting efficiency
50% at 0.3 μm 100% at > 0.45 μm according to JIS


Flow
2.83 l / min (0.1 ft3 / min)
Random loss
5% at 4,000,000 particles / ft³
Battery
10 h
Light source
Long-life laser diode
Zero count
< 1 count / 5 min (< 2 particles / ft³)

According to ISO 21501-4 and JIS
Counting modes
Automatic, manual, real-time, cumulative /

Differential, mass concentration
Alarms
1 ... 9999999 counts, adjustable
Calibration
Traceable to NIST
Display
4.3" WQVGA color touch display, 480x272 px
Printer
External thermal printer
Aspiration
Internal pump with automatic

Flow control
Air outlet
Internal HEPA filter
Battery pack
Replaceable Li-Ion battery
Charging time
About 4 hours
Reports
ISO 14644-1

EU GMP Annex 1

FS 209E
Configuration
Memory for 50 custom configurations
Standards
ISO 21501-4 and JIS B9921
Dimensions
25.4 x 12.9 x 11.4 cm
Weight
1.0 kg
Storage
45000 data sets (ring memory) consisting of

Particle count, temp and humidity, locations and times
Sample locations
Up to 1000 locations can be stored
Samples duration
1 s ... 99 h adjustable
Power supply
110 ... 240V AC 50/60 Hz
Operating conditions
5 ... 40°C / 41 ... 104°F

Up to 95% RH not condensing
Storage conditions
0 ... 50°C / 32 ... 122°F

Up to 98% RH not condensing


Temp.-/ Humidity sensor
0 ... +50 °C (32 ... +122 °F), 15 ... 90 % r.H.
Internal

Resolution
0.5 °C
Accuracy
±0.5 °C (±1 °F), ±2 % r.H.


Interface
Ethernet, USB
Optional interfaces
WiFi 802.11 b/g, RS485 or RS232
Number of measuring channels
6


DELIVERY SCOPE
1 x Air Quality Meter PCE-PQC 10EU
1 x Isokinetic probe
1 x Temperature and humidity sensor
1 x Cleaning filter
1 x Li-Ion rechargeable battery
1 x Software for data download
1 x USB cable
1 x Power supply / battery charger
1 x User manual
1 x Calibration certificate according to NIST