Air Server 3 is a portable gas sampler for UNITY 2. It can collect vapor phase organics from three gas channels (typically sample, standard and zero gas) and perform cryogen-free concentration with UNITY 2. The sampling process is fully automated via software.
The Markes International Series 2 Air Server 3 (AS3) is an accessory designed to mount on the left-hand side of the UNITY 2 system. It extends the sample range to include cryogen-free concentration of vapor-phase organics from a sequence of three whole air or gas channels, typically used for sample, standard, and zero gas.
The module features electronic mass flow control for sample and split flows, inert 3-way switching valves with zero dead volumes, and compatibility with gas-phase samples ranging in pressure from just below atmospheric to 50 psi. It supports automatic sequencing of whole-air analyses and integrates with the UNITY 2 software for automated sampling and desorption cycles.
| Height | 19.5 cm (7.7 in) |
|---|---|
| Width | 6.5 cm (2.6 in) |
| Depth | 50.5 cm (2 in) |
| Weight | 3 Kg (7 lb) |
| Ambient operating temperature | 0°C to 40°C |
| Ambient operating humidity | 5 to 95% RH non-condensing |
| Sample flow range | 2 to 100 ml/min |
| Trap purge flow range | 2 to 100 ml/min |
The system is compatible with gas-phase samples ranging in pressure from just below atmospheric to 50 psi.
No, the module is powered and controlled internally by the UNITY 2 system.
Key applications include continuous on-line measurement of hydrocarbons in ambient air, monitoring industrial odour, and process monitoring of trace level volatiles.