FTX-ONE-CS/RS FTIR Exhaust Gas Analyzer

FTIR Exhaust Gas Analyzer for Direct Exhaust Measurement

The FTX-ONE-CS/RS is a fast-response, compact FTIR analyzer for the simultaneous measurement of multiple components in engine exhaust gas. Designed for direct exhaust measurement, it helps engineers investigate rapidly changing emissions while minimizing the effect of sampling on engine combustion and catalyst performance.

Using Fourier Transform Infrared (FTIR) spectroscopy and multivariate analysis, the system provides a 5 Hz sampling rate and simultaneous measurement of components including NH₃, CH₄, and CO₂. Configurable component sets support gasoline, diesel, CNG and ethanol applications.

The compact FTX-ONE-CS provides multi-component FTIR measurement in a standalone configuration. The rack-mounted FTX-ONE-RS combines the FTX-ONE-CS detector with dedicated THC and O₂ measurement, enabling engineers to correlate fuel consumption, air-fuel ratio and individual emission trends through one integrated system.

As part of HORIBA ONE PLATFORM, the FTX-ONE-CS/RS can be integrated with other compatible HORIBA measurement systems through a common user interface. This enables centralized control, monitoring and management while supporting consistent laboratory operation and future system expansion.

Simultaneous Multi-Component Direct Exhaust Measurement

Simultaneously measures up to 28 components, depending on the selected configuration
Measures directly from internal-combustion-engine exhaust
Supports gasoline/diesel, CNG and ethanol component sets
Configurable components and measurement ranges based on testing requirements
Reduces the need to coordinate data from multiple individual analyzers

Fast Response for Transient Testing

5 Hz sampling rate for observing rapidly changing emissions
Approximately 1.5-second response time for NH₃ on the calibration line*
Supports analysis during transient engine and aftertreatment operation
Synchronized data helps correlate emissions with engine operating conditions

^{*T₁₀–₉₀ response time measured on the calibration line.}

Low Sampling Flow

The high-performance optical cell enables direct exhaust measurement with a low sample-flow requirement, reducing the potential influence of sampling on engine combustion and catalyst performance.

FTX-ONE-CS sampling flow: approximately 3.5 L/min
FTX-ONE-RS total sampling flow: approximately 8 L/min

Two Configurations for Different Testing Requirements

FTX-ONE-CS

Provides a 5 Hz sampling rate for simultaneous measurement of multiple components in direct engine exhaust
Measures components including NH₃, CH₄, and CO₂ using Fourier Transform Infrared (FTIR) spectroscopy and multivariate analysis
Compact, standalone configuration for multi-component exhaust gas analysis
Low sampling flow rate of approximately 3.5 L/min
Supports gasoline/diesel, CNG and ethanol component sets
Offers greater flexibility for installation and maintenance in existing laboratories
Dimensions: 438 (W) × 661 (D) × 950 (H) mm, excluding protrusions

FTX-ONE-RS

Combines the FTX-ONE-CS detector with dedicated THC and O₂ measurement
Measures THC using heated flame ionization detection
Measures O₂ using paramagnetic detection
Enables correlation of fuel consumption, air-fuel ratio and individual emission trends
Rack-mounted configuration for integrated measurement
Total sampling flow rate of approximately 8 L/min
Supports gasoline/diesel, CNG and ethanol component sets
Dimensions: 655 (W) × 850 (D) × 1,970 (H) mm, excluding protrusions

Integrated with HORIBA ONE PLATFORM

Common user interface across compatible HORIBA measurement systems
Centralized equipment control, monitoring and management
Consistent operation across laboratories and test cells
Expandable system architecture for evolving measurement requirements

Research and Development Applications

Engine and vehicle emissions R&D
Engine-out and direct exhaust measurement
Transient emissions investigation
Urea-SCR aftertreatment development
Gasoline three-way catalyst evaluation
Alternative-fuel and bioethanol research
Fuel-consumption and air-fuel-ratio correlation using the FTX-ONE-RS
Development and testing related to Euro 7 requirements
NH₃ measurement associated with Euro VI heavy-duty vehicle and Stage V NRMM requirements

Measurement capabilities and applicable configurations vary. Contact HORIBA to confirm the appropriate component set, measurement ranges and regulatory application.

Outline

	FTX-ONE-CS	FTX-ONE-RS
Measurement target	Exhaust gas from internal combustion engine (Direct measurement)
Target components^*1	Max. 28 components	Max. 28 components including THC, O₂
Target components sets*^₂	Gasoline / Diesel set CNG set Ethanol set	Gasoline / Diesel set CNG set Ethanol set
Principle	Fourier Transform Infrared (FTIR)	Fourier Transform Infrared (FTIR) THC: Heated Flame Ionization Detection O₂: Paramagnetic Detection
Sampling line temperature	113°C ± 6 °C or 191 °C ± 6 °C	113°C ± 6 °C or 191 °C ± 6 °C
Sampling gas flow rate	Approx. 3.5 L/min	Total Approx. 8 L/min
Operating environment	Ambient temperature 5 - 40 °C Ambient humidity: less than 80 % relative humidity (non condensing)	Ambient temperature 5 - 35 °C Ambient humidity: less than 80 % relative humidity (non condensing)
Power requirements^*3	Approx. 2.8 kVA as MAX., Approx. 2.2 kVA at stable state	Approx. 4.5 kVA as MAX., Approx. 3.5 kVA at stable state
Dimensions^*4	438(W) × 661(D) × 950(H) mm	655(W) × 850(D) × 1970(H) mm
Mass^*4	Approx.150 kg	Approx. 430 kg

*1：Select when ordering from the “Measuring Components and Ranges” table
*2：Standard combination of components and ranges, specified at time of order
*3：With heated filter, heated hose (CS: 15 m, RS: 12 m) and THC/O₂ analyzer (only RS)
*4：Excluding protrusions

Measuring Components and Ranges^*1

Components	Gasoline / Diesel
CO	0-200ppm 0-1000ppm 0-5000ppm 0-2 vol% 0-10 vol%
CO₂	0-1 vol% 0-5 vol% 0-20 vol%
NO	0-200ppm 0-1000ppm 0-5000ppm
NO₂	0-200ppm
N₂O	0-200ppm
H₂O	0-24 vol%
NH₃	0-100ppm 0-1000ppm
SO₂	0-200ppm
HCHO^*2	0-500ppm
HCOOH	0-100ppm
CH₄	0-500ppm
C₂H₄	0-500ppm
C₂H₆	0-200ppm
C₃H₆	0-200ppm
1,3-C₄H₆	0-200ppm
iso-C₄H₈	0-200ppm
C₆H₆	0-500ppm
C₇H₈	0-500ppm
NOx / HC sum	Sum
THC (RS only)	0-10 ppmC - 60000 ppmC
O₂ (RS only)	0-1 vol% - 25 vol%

*1: The following are optional: Add other components (methanol, ethanol, acetaldehyde, MTBE, DME, acetone and acetic acid), to interchange other components and to change ranges. Please contact HORIBA for optional arrangements.
*2: Reference component