MIX IT RIGHT
GRack
Industrial rack-mounted gas mixing platform
Rack solution powered by AlySoft™ — unified control, recipes, sequences and full Audit Trail.
System Concept
GRack is an industrial, rack-mounted implementation of AlyTech’s GasMix™ architecture, designed for continuous operation and high-throughput laboratories.
The platform integrates calibrated mass-flow modules, valves and safety functions into a compact 19″ rack, producing on-site calibration mixtures from percent down to trace levels. Modular design lets you scale channels and options while keeping a single control layer.
Powered by AlySoft™, GRack delivers certified traceability (Audit Trail, user management, reports) and repeatable performance for routine QA/QC and production benches.
Operation & Software
Made by experts, GRack is operated via dedicated, intuitive software. The AlySoft™ platform controls every stage of the process — calculating mixtures, applying calibration tables, and running programmed sequences.
- User-friendly interface for quick setup
- Programmed injection and dilution sequences
- Analyzer synchronization (dilution, injection, flushing)
- Minimal operator bench time — connect cylinders, launch the sequence, retrieve results
- Options: Injection Valve and FReD flow regulator
Metrological Excellence
Every integrated Mass Flow Controller (MFC) undergoes 400-point factory calibration across the full dynamic range and for each selected gas matrix (He, Ar, CH4, H2, N2, Air, …). This ensures superior linearity and precision, especially at very low and very high flow rates.
- NIST-traceable calibration
- ±1% set point accuracy and <0.1% repeatability *
- Automatic K-factor calculation & correction
- Dilution factor: up to 10,000
- Automatic uncertainty calculation, full QA/QC traceability with Audit Trail
- Certificate issuance with concentrations & uncertainties
Key Benefits
Industrial 19″ integration
Robust, serviceable build for production benches and continuous duty.
High throughput
Parallel workflows and automated sequences minimize operator time.
Full automation
Sequences plus analyzer sync minimize operator bench time.
ISO-ready traceability
Audit Trail, user management and certified reports directly from AlySoft™.
From percent to trace
On-site generation of mixtures ranging from high levels down to ppb.
Scalable & service-friendly
Modular channels, easy maintenance, consistent UI across systems.
Applications
GRack suits high-throughput QA/QC labs, analyzer benches and production environments requiring reliable, traceable and automated calibration workflows.
Production QA/QC
Automated calibration routines integrated with benches.
Analyzer Benches
Multipoint sequences, linearity checks, LOD/LOQ.
Environmental & Process
Traceable gas mixtures from percent to trace levels.
Custom Racks
Tailored channel count, valves and safety options.
FAQ — GRack
Most asked questions about rack-mounted GasMix™ systems, OEM integration and metrological performance.
What is GRack used for?
What is the difference between GRack and GMRack?
The GMRack is the GRack with the touch screen option.
How many gas lines can they handle?
Can it feed multiple analyzers or sampling lines?
With optional valve manifolds, multiplexers or stream selectors, it can sequentially or simultaneously feed several analyzers or sampling lines, which is ideal for analyzer shelters and automated systems.
What concentration ranges can it generate?
Is it suitable for CEMS and EN 14181?
It is widely used for CEMS calibration and QA/QC routines such as QAL2/QAL3, linearity checks and periodic validation according to EN 14181 and similar standards, when paired with appropriate certified gases.
How is the system controlled?
Is it compatible with aggressive gases?
Configurations with SS316, inert passivation and special seals (Kalrez®, Chemraz®) allow safe handling of reactive gases such as H₂S, SO₂, NOx, NH3, VOC and more. Material selection is adapted to the target application.
What about accuracy and traceability?
Can the system be integrated into PLC or DCS?
What maintenance is required?
Is it suitable for hydrogen impurity checks following ISO 14687?
The GRack has been used for several years for this purpose by clients such as SGS.
Ready to Mix It Right on site?
Scale your calibration capacity with certified traceability — powered by AlySoft™.