HUMIDIFICATION OPTION

The humidification option allows specific Relative Humidity (RH) levels to be added to the output gas of the system. RH levels between 0 - 99% can be achieved. The humidifier is factory calibrated for a specific RH level to an accuracy of 5% (assuming a constant flow rate and gas temperature), and is NIST traceable.

Series 2014 with Optional Humidification

The humidification option is rear panel mounted and consists of a humidifier and a 250mL gravity feed D.I. water reservoir. The humidifier is made from a water vapor permeable tube made of Nafion (a Teflon derivative). The humidification option incorporates a continuous purge path to prevent moisture build-up and condensation.

OPTIONS AVAILABLE

• Adjustable humidity level
• Heated gas path for stability
• Multiple flow rate calibrations
• Temperature controlled water circulator

CANISTER FILLING OPTION

The Canister Filling option allows the gas mixing/dilution system to fill a canister to a particular pressure. The system will stop automatically when the desired pressure is reach, and even allows the desired pressure to be changed while filling.

For most systems, this option uses a mechanical pressure switch, which is adjusted to the desired pressure. For Series 2000 systems, the mechanical pressure switch is replaced with a pressure sensor, that allows the final pressure to be selected in software from the instrument front panel. Series 2000 systems also include a real-time display of the pressure, as well as an audit trail capability for recording: gas concentration, start/stop time, and desired/actual pressure.

APPLICATIONS

• Low level VOC storage
• Canister conditioning for VOC storage
• Storage of low level multi-blends from high level gases
• Simulate actual ambient R.H. level conditions in gas mixtures