The Chroma is an exceptionally adaptable and highly precise trace gas analyzer.
As one of the most versatile trace gas monitoring solutions on the market, the Chroma is tailored to specific background gases to guarantee optimal performance for applications.
- Exceptional versatility for a variety of application requirements
- A solution without compromises
- User-friendly and straightforward to operate
Overview
A Trace Gas Analyzer Configurable to a Wide Range of Applications
The Chroma analyzer provides a non-depleting Plasma Emission Detector (PED), Flame Ionization Detector (FID), and Thermal Conductivity Detector (TCD), making it one of the most adaptable gas analyzers for trace gas measurement on the market. A single 4U rack analyzer configuration will meet the needs of most applications, rendering the Chroma a compact and economical choice for continuous process control or quality monitoring.
High Versatility for Diverse Application Needs

Image Credit: Servomex
Applications that rely on the utmost levels of product purity need trace analysis with outstanding sensitivity and performance. The impurities that need to be measured are varied in nature and present in several background gas streams, thus requiring significant flexibility. A technique that can offer stability is crucial since measurements must be reliable. Regardless of application monitoring needs, it is also important to have a solution that is user-friendly and offers a low total cost of ownership. Users do not have to make compromises.
A No-Compromise Solution
The Chroma provides flexible ultra-trace analysis through an innovative integration of advanced sensing technology and intelligent control software.
Leveraging the rapid, precise, sensitive, and selective capabilities of Servomex’s non-depleting Plasma Emission Detector (PED) cell, Flame Ionization Detector (FID), or Thermal Conductivity (TCD) technologies, the Chroma presents advanced configuration and performance options that significantly surpass those of its competitors.
Easy and Intuitive to Use
In addition to Chroma's measurement capabilities, it offers a user-friendly solution with enhanced flexibility. The software, rich in features, enables complete remote device interaction via Ethernet/Internet, while a comprehensive array of reporting options facilitates straightforward statistical analysis. Furthermore, the Chroma is equipped with a high-resolution TFT color LCD that is user-friendly, enabling easy local configuration and interaction.
Features and Benefits
A Powerful Solution for Process Control and Quality Monitoring
The Chroma serves as a mainframe analyzer that can be fully tailored to meet the specific application needs, offering various performance enhancements and cost-saving advantages.
Software Optimization
The Chroma has been enhanced through advanced and adaptable operational software, which provides access to all device functionalities through a PC. This upgraded software guarantees improved security and stability, utilizing a strong, Windows 10-based operating system.
Easy to Use for Complex Applications
The Chroma features a completely automated, application-tuned system designed for user convenience.
The advanced PlasmaHC and ArgonSep technologies enhance the sophisticated sensor capabilities, and a large, clear display screen facilitates easier operation.
Safer, Cost-Effective Measurements
For CH4/NMHC measurements, the Plasma HC system does not require an FID, eliminating the need for H2 fuel gas and reducing costs and improving safety.
Unrivalled Performance
- Utilizes patented PED sensing technology that is both ultra-sensitive and highly selective, ensuring the utmost reliability and performance available today
- PlasmaHC quantifies methane and NMHC without a FID, eliminating the need for maintenance and fuel. ArgonSep effectively separates Ar from O2 without requiring scrubbers, offering a sensitive and maintenance-free measurement
Flexible
- A thorough solution for ultra-trace detection of H2, He, O2, N2, Ar, CH4, CO, CO2, and NMHC amidst various background gases such as H2, O2, N2, Ar, He, and CO2
- Plasma, FID, and TCD technologies are employed based on the specific application
- The compact design is suitable for installation within a single 4U rack
- It offers flexible communication options, including Ethernet, RS232, and 4-20 mA output
Easy to Use
- Thorough device interaction and oversight through advanced software
- Remote configuration through Ethernet/Internet
- Electronic carrier and sample flow PID control system
- Remote range ID contact for each impurity
Low Cost of Ownership
- The software provides simplified reporting functions
- PED sensing technology operates without the need for a separate methanizer
Benchmark Compliance
- Class B digital apparatus requirements of ICES-001 of Canada through the application of EN 61000-6-3:2007
- Part 15 of the US FCC rules for Class B equipment
- IEC 61010-1 for electrical safety
- EC “Low Voltage Directive” by application of EN 61010-1 and rated for Over Voltage Category II, Pollution Degree 2
Specifications
Employing precise Gas Chromatography methods, the Chroma can perform trace measurements at part-per-million, parts-per-billion, or percentage levels across various background gases.
Source: Servomex
| Gas |
Measurement |
| Oxygen (O2) |
ppm, ppb |
| Argon (Ar) |
ppm, ppb |
| Carbon dioxide (CO2) |
ppm, ppb |
| Carbon monoxide (CO) |
ppm, ppb |
| Helium (He) |
ppm, ppb |
| Non-methane hydrocarbons (NMHC) |
ppm, ppb |
| Hydrogen (H2) |
ppm, ppb |
| Methane (CH4) |
ppm, ppb |
| Nitrogen (N2) |
ppm, ppb |
Technologies
- Gas chromatography
- Plasma
- Flame ionization detector
- Thermal conductivity
Certification
In accordance with EMC Directives, classified for Overvoltage Category II and Pollution Degree 2.
Schematics

Image Credit: Servomex
Size
482 mm (18.9”) Wide × 117 mm
(4.6”) High × 600 mm (23.6”) Deep
Weight
11–27 kg (25-60 lb) applications dependent