ATEC - Model 3400 -Toxic Air Sampler System
The Model 3400 Toxic Air Sampler is designed to sample both toxic gases and particulates using one easy to use instrument. The Model 3400 can be ordered with up to 4 sample channels. The sample is ideally suited for use in the NATTS program, since it can simultaneously sample one canister, one carbonyl DNPH cartridge, and two hexavalent chromium (Cr6) filter samples. The sampling methods employed in the Model 3400 follow the guidelines outlined in EPA Methods TO-11A, TO-14, TO-15, and the improved CARB method for Cr6 recently developed by EPA and ERG. The flow rate through each channel is regulated with reliable mass flow controllers. A single board internal computer with a color touch screen display provides flexible scheduling, error checking, and data logging capabilities. The sampler is available in either an indoor or outdoor version.
- On screen Standard Operating Procedures provide step-by-step guidance for operators during instrument setup
- Canister flow rate and pressure logged during sampling
- Canister pressure and flow rate monitored for out of tolerance conditions
- Cartridge and filter flow rate and volume logged during sampling
- Cartridge and filter flow rate monitored for out of tolerance conditions
- Auto zero of mass flow controllers
- Software calibration of mass flow controllers and pressure transducers
- Duplicate sampling with independent mass flow controllers (maximum of four independent channels)
- Optional label printer to provide QA labels for cartridges
- Data download to PC
- Idle ports and collocated channels can be programmed while sampling
- Programmable purge for main unit and expansion units flushes entire sample path prior to sampling
- Temperature controlled ozone scrubber for carbonyl sampling
- Manual mode operation to activate all components