2B Black Carbon Analyzer Model BCP from the United States

NegotiableUpdate on 03/24

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Overview

2B Black Carbon Analyzer Model BCP from the United States

Product Details

2B Company Model BCP Black Carbon Analyzer in the United States

Product Introduction

The BCP black carbon analyzer is a sturdy, portable, high-precision, and economical instrument used to measure atmospheric black carbon particles in urban environments. The BCP black carbon analyzer uses a new direct long path photometry measurement technology to quantify the total extinction coefficient and mass concentration of particles in aerosols (gas+particles) in real time. This direct measurement method avoids the artifacts and other bias issues associated with other similar instruments in the current market, such as the commonly used measurement method of using filters to pre concentrate samples before analysis.

The photometer detection unit of BCP black carbon analyzer adopts a folded tubular design, which is an innovative technology that can quickly clean the pipeline, which is necessary for rapid switching between sample and reference measurements. Therefore, the BCP black carbon analyzer has high sensitivity, does not require pre concentration of the sample, and can directly and quickly measure black carbon. The foldable absorption unit provides a 2.1 meter absorption path length in a compact space, achieving an instrument weight of only 8.6 kilograms and a smaller volume for direct installation on a standard rack.

The BCP black carbon photometer directly measures the total extinction (absorbance+scattering) of particulate matter at two wavelengths (405 nm; 880 nm), with extinction measured in Mm-1.. The concentration of black carbon aerosols is mainly measured at a wavelength of 880nm, and the measurable range of black carbon mass concentration is 0.1-1000 μ g/m3. The extinction at a shorter wavelength of 405nm can better obtain information on aerosol optical absorption, optical properties, radiation transmission, emission sources, and source resolution, such as PM2.5 related positioning information. The BCP black carbon photometer is very useful for researchers studying the role of black carbon in air quality and climate, as well as air quality managers interested in estimating community exposure risks.

At longer wavelengths of the black carbon photometer (880 nm), the contribution of absorption to extinction is much greater. In polluted urban air, the instrument's response at 880 nm is mainly due to black carbon absorption. The measured extinction was converted to black carbon concentration (Ca,? Gm-3) by using an appropriate black carbon absorption coefficient (? Abs, m2 g-1) at 880 nm: Ca=Bext/? MEC? Bext/? abs。 At the shorter wavelength of the instrument (405nm), scattering dominates and the instrument response is more indicative of total aerosol concentration. The default value of the Mass Extinction Coefficient (MEC) of 880 nm black carbon is used in the instrument, but users can easily modify the values of two wavelengths according to the sampling environment? MEC。

Product Features:

By directly measuring the extinction of particles with two wavelengths (880 nm and 405 nm), real-time measurement of particulate matter, including black carbon and PM2.5, can be achieved.

The direct method eliminates the need for pre concentrated samples on the filter, thereby avoiding related artifacts

Power consumption: Approximately 15 watts after preheating

Lightweight (approximately 19 pounds, 8.6 kilograms), standard rack mounting dimensions

Long life pump (approximately 15000 hours)

touch screen

USB port for portable data recording

Internal data logger (EEPROM) records 8192 rows of data

Serial and user expandable analog voltage output

Convenient interface between users and microprocessors through touch screen or serial, including calibration parameters (gain and zero) and quality conversion coefficients

The selectable measurement time is 10 seconds, and the average data time is 1 minute, 5 minutes, and 1 hour

Built in zeroing function

Almost no technical maintenance required, suitable for continuous operation under on-site conditions (capable of battery power supply)

Compared to other commercial instruments, it is cost-effective

Optional configuration:

Bluetooth for wireless data transmission

USB output (instead of RS232)

Technical Requirements:

Measuring principle	Direct extinction at 405 and 880 nm
Measurement output	Extinction at 405 and 880 nm (Mm-1) Mass concentration at 880 nm (g/m3)
linear dynamic range	0-10,000 Mm-1（880 nm 时0-1300 g/m3）
resolution	0.1 Mm-1（0.1g/m3）
precision	0.3g/m3; 0.06g/m3 加滤波器
accuracy	More than 2 Mm-1 or 2% of the reading
detection limit	<1.0 Mm-1 at 880 nm <1.6 Mm-1 at 405 nm
Calibrate flow rate	1.3 liters per minute
Traffic requirements	Minimum value: 1.0 liter/minute; Large: 1.6 liters per minute
response time	100% step change for 20 seconds, 10 seconds average for 30 seconds, adaptive filter 1
Measurement Frequency	0.1 Hz (every 10 seconds)
Average time for data collection	10 seconds, 1 minute, 5 minutes, 1 hour
Internal data logger capacity	8192 lines (10 second average=0.95 days; 1-minute average=5.7 days; 5-minute average=1.0 month; 1-hour average=0.94 years)
output	USB
pressure unit	mbar
temperature unit	°C
Working temperature range	5 to 45 ° C
work pressure	600 – 1000 mbar
power supply	AC 110/220 VAC, 2.5A; Battery 11-14 V DC; 15W
size	43×37×14 cm
weight	8.6 kg
data output	RS232; 0-2.5 V
Data transmission baud rate	2400
Pump lifespan	15000 hours

2B Company Model BCP Black Carbon Analyzer in the United StatesChina Technical Service Center