Fast GC with two columns and sampling valve

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CALIDUS CS

ideal for individual components
heartcut and backflush operations
fast, modular and simple

The Calidus CS for heartcut and backflush applications.

Calidus CS Gas Chromatograph

The Calidus CS comprises 5 modules: a sample processing unit with sampling valve; 2 x resistively heated column modules (choice of columns available); and 2 x detectors (either flame ionisation (FID), flame photometrics (FPD) or thermal conductivity (TCD)). The column switching valve enables the GC to perform heartcut and backflush operations, making it ideal for individual component specification from a sample matrix.

Having two resistively heated columns means that they can be independently temperature controlled with ramp rates from 0.1 to 5 °C per second from 5 °C above ambient to 180 °C.

It can be used for product specifications testing, product safety, environmental measurements, catalyst protection, research and many more applications:

in the laboratory
at line
is transportable
on-line

A single Calidus™ GC provides a simple ultra-fast analysis 10 to 50 times faster than conventional GCs, has a footprint less than half of a research grade GC, and the capacity to do the work of 4 to 5 research grade GCs, making it the leading choice for gas analysis equipment and a cost effective measurement method.

The modular design lowers maintenance costs and increases flexibility to run different fluid mixtures.

The Calidus series of GCs uses ground breaking technology in the form of resistively heated column to give superior performance. Using the stainless tube as the heater means that the traditional ovens for columns can be removed and the size of the system can be dramatically reduced.

The ethos of the Calidus series from day one was that a GC used in the lab should be the same GC when used as an on-line system for process control. This way the performance, methods and procedures developed for highly repeatable measurements can be directly applied to on-line systems.

Chromatogram for Diesel

GENERAL
Measurement	Gas chromatograph analysis
Measurement principle	Flame ionisation, flame photometrics or thermal conductivity
Configuration	Transportable, on-line, at-line or laboratory
Dynamic range	Depends on detector used and application (FID typically 10⁵)
Repeatability	± 1 % RSD or better (area) and ± 0.1 % RSD or better (retention times)
Resolution	50 to 100 Hz digitization (detector dependent) on each column, 24 bit resolution, auto zero on each run
Analysis time	For VOCS: can be < 20 secs For SVOCs: can be < 60 secs
Capillary column	Two 2 m long, 100 to 320 μm ID Optional: column modules available in Mxt-1, Mxt-5, Mxt-1701, Mxt-Wax, Mxt-Molesieve, Mxt-Alumina, < 320 μm and various film thicknesses
Temperature control	Temperature programmable from 0.1 to 5 °C per second from 5 °C above ambient to 350 °C (maximum temperature software limited to be no greater than the limit for the columns installed, isothermal operation is available)
Sample inlet	Gas and liquid inlet for syringe injection of samples, or automated gas and liquid sample valves available
Pressure of sample gas	0 to 50 PSIG at ambient temperature
Liquid injections	Neat or dilute organic solvents (DCM, hexane, MEK, toluene, methanols, CS₂, etc.)
Other sample requirements	Membrane, SPME and static and dynamic headspace extracts
Controls	All functions and parameters via ethernet or RS-232 using ChromPerfect™ software. Start analysis from keyboard or GC. Set method from external computer using ChromPerfect™. Trigger in and ready out signals plus an array of others via ChromPerfect™
Front panel displays	Temperature and pressure readings, function on/off, other Power on/off Status of analysis columns (isothermal, programming, cool down, ready, cycles run, other)
Operating temperature	0 to +35 °C
Storage temperature	-20 to +60 °C
Relative humidity	0 to 100 % (non-condensing)
Certification
European	CE mark pending
Shipping
Shipping weight	~ 9 Kg
MECHANICAL
Dimension	279.4 H x 432 W x 216 D mm
ELECTRICAL / UTILITIES
Power requirements	< 300 Watts peak power at startup, practical use < 200 Watts for gas or liquid analyses 24 VDC supplied from external power supply, 100 to 240 VAC using 50/60 Hz AC
Gas supplies	50 PSIG, 99.995 % H₂ or He at up to 250 ml/min, 50 PSIG zero air for FID operation
Data processing	Via external computer with Windows XP or newer operating environment, using ChromPerfect™ software
Outputs
Standard	Full reporting and data export capability via ChromPerfect™
Options	Up to 16 analogue outputs Modbus
All specifications subject to change

Palarus GC Autosampler

The Paralus GC Autosampler is one of the third generation of x,y,z robot-like autosamplers.It communicates seamlessly with the Calidus operating system to provide faster, quieter and more reliable movement. The durable construction has no bungee cords and provides fast injections with up to a 324 vial capacity.

View the Palarus GC Autosampler here

Hydrogen Generator

These modular, stackable generators allow a safe hydrogen supply for carrier gas and FID operation without the requirement for storing high pressure hydrogen cylinders. These generators complete the portability of the Calidus GC and provide high purity hydrogen by electrolysis of water. The only utilities required are power and demineralised water to produce an uninterrupted supply of hydrogen gas.

Download the data sheet here

View the Precision Hydrogen here

VIDEOS:

Part 1 - Introduction and setup of the Calidus

Part 2 - Explanation of the Calidus

Part 3 - Inside the Calidus

Part 4 - Injector and plumbing of the Calidus

Part 5 - Computer power of the Calidus

Part 6 - Getting ready to run the Calidus

Part 7 - Setting up software for the Calidus

Part 8 - Initialising run conditions for the Calidus

Part 9 - Running samples on the Calidus