Real-time Soot Analyzer MEXA-1230Soot

Overview

Measures direct raw or diluted exhaust samples
Displays Soot as mg/m3 using an empirically derived conversion factor

The MEXA-1230Soot provides a real time measurement of Soot concentration in the exhaust to assist with your clean vehicle development programs.
It uses a highly sensitive detector based on the well proven Diffusion Charging (DC) principle which provides a wide range in conjunction with a stable heated dilution system for engine combustion analysis, ECU calibration and after-treatment development.
The main unit of the MEXA-1230Soot has been reduced in size from the MEXA-1230PM, which significantly improves the flexibility in a wide range of applications and test cell layouts.

Features

High sensitivity measurement of Soot by DC method
Wide range measuring capability
Remote operation, controlled from host CPU via AK protocol

Soot is measured by a Diffusion Charging method

Sample is diluted with an ejector pump. Soot concentration is calculated by measuring the electrical current of ions attached onto the surface of charged particles.

The DC detector for Soot measurement

Manufactured by HORIBA

Specifications

Principles	diffusion charging (DC) method ^*1
Calculation and unit of target components	Soot : converted value by a coefficient (in mg/m³) ^*1
Measuring ranges	0 to 15/75/150 mg/m³ (with dilution ratio of 1 to 160/800/1600)
Sample gas flow rate	4.0 L/min ± 1.0 L/min
Sample gas pressure	0 kPa to 30 kPa
Environment for operation	Ambient temperature : from 5℃ to 35℃ Ambient humidity : under 80 % as relative humidity
Warm-up time	Within 2 hours after power ON
Power supply	100/110/115/120/200/230/240 V AC (± 10%, max. 250V), 50/60Hz (± 0.5 Hz), single phase (To be specified when ordering. It cannot be changed after purchasing.)
Power capacity	Approx. 3 kVA as maximum (approx. 2 kVA at stable state)
Dimensions	Main unit : 570(W) x 850(D) x 1190(H) mm (without PC/monitor) Dilution unit : 316(W) x 315.2(D) x 500(H) mm
Outputs / Inputs	Monitoring on the display of control PC Analog input : 0-10 V (7 channels) Analog output (optional) : selectable from 0-10 V, ± 5 V and ± 10 V (6 channels) Digital input-output : LAN communication (by AK protocol) Data saving as text file

Remarks
*1 : The readings of the Soot analyzer used in the MEXA-1230Soot corresponds to surface area of particles in sample gas of unit volume. The mass concentration of Soot in mg/m3 is obtained by multiplying the surface area value and an adjustable coefficient together. Dilution ratio of the Soot diluter (1:160/800/1600) is also taken into account in this coefficient.