The CP-4900 from Varian, Inc. is a rugged, compact, laboratory-quality analyzer that always delivers the information you need - regardless of the location. When the composition of gas mixtures is critical, this 4th generation micro gas chromatograph delivers more data in less time for faster and better business decisions. The CP-4900 features advanced micro-engineering and computer technologies as well as one to four plug-and-play GC channels. Each channel is a separate GC with pneumatics, injector, column and detector. The low energy consumption allows the GC to be brought directly to the sample. Various columns are available such as CP-Sil 19CB, Molsieve 5A, PoraPLOT U and PoraPLOT Q. Fast, reliable answers. Accurate, cost-effective gas chromatography analysis in seconds for natural gas, refineries, specialty gases, fuel cells and oil and gas exploration. Any area where accurate gas analysis saves money and adds value benefits. The CP-4900 is ready to use out of the box, comes configured for your analysis and has a modular design for quick maintenance. Flash memory allows for quick software upgrades over the Internet. With user-installed plug-and-play GC channels, the device can be reconfigured for new applications in five minutes. The CP-4900 is easy to transport, weighs from 5.2 kg and is only 15 cm wide. An optional field case with gases and battery power rating is available for remote locations. Analyzes can be started within 15 minutes of switching on. A laptop PC controls all instrument parameters and data processing. Local or remote control of operations and data reduction is possible. You can choose between Varian's Star Chromatography Workstation or CP-Maître Elite for error-free operation. Standard or custom reports with minimal operator effort are possible. Results can be monitored to set limits, trigger alarms or change valves. A standard 4-20 mA signal output is used for process control. Communication with the CP-4900 from a process control computer is via standard RS232, RS485 or Ethernet protocol. CP-4900 GC Technical Specifications: One to four plug-and-play GC channel configuration. Independent control for each channel with separate pneumatics, injector, column and detector. The injector is a micro-engineering injector with no moving parts, the injection volume is software selectable from 1 µL to 10 µL, there is an optional heated injector. The column oven temperature range is isothermal from 30°C to 180°C, with optional backwash capability. The detector is a micro-engineered thermal conductivity detector with two channels (sample and reference) and an internal volume of 200 nL per channel. The detection limits for WCOT columns are 1 ppm and for micropacked columns are 10 ppm. The operating range is from a concentration of 1 ppm to the 100% level, with a linear dynamic range of 106 and a repeatability of <0.5% RSD for propane at the 1 mol% level for WCOT columns at constant temperature and Pressure. He, H2, N2 or Ar can be used as carrier gas; the inlet pressure is 550 ± 10 kPa. The sample conditions are designed for non-condensing gases from 0 °C to 40 °C. The environmental requirements are 0% to 95% non-condensing for humidity and 0°C to 50°C for temperature. Power supply requires 90-130 Vac or 180-260 Vac at 50-60 Hz with an output of 12 Vdc and a maximum of 180W. For communication there is an analog input with 6 signals and an external RS-232 port. Optionally there is Ethernet TCP/IP with a static IP address and a Com port for external devices. The control/data processing software includes standard packages such as Star® Chromatography Workstation or CP Maître-Elite. Special packages for natural gas properties such as calorific value and relative density meet ISO 6976, GPA 2171 and ASTM D 3588 standards. There is an optional field case with gas containers and rechargeable battery packs as well as an optional microgasifier with heated pressure reducing regulator for the injection of high pressure LPG or LNG samples. Labprocure is responsible for this device.