General Description
The Model DX4040 portable FTIR gas analyzer is a field rugged instrument that can identify “unknown” gases within minutes of arriving at an incident site by searching the NIST/EPA© reference library of over 5,000 gases. Measuring 25 gases simultaneously at sub-ppm levels, the DX4040 can be pre-programmed to measure TIC’s, TIM’s and CWA gases with updated readings each 60 seconds or less.
Technical Description
The Model DX4040 uses FTIR (Fourier Transform Infrared) measurement technology to allow the user to measure up to 25 toxic gases simultaneously. A unique part of the Model DX4040 is Gasmet Technologies GICCOR (an acronym for 'Genzel interferometer with a cube corner retroflector') interferometer. The interferometer can be thought of as the engine of a FTIR. It is rugged and withstands the demanding environmental conditions of non-laboratory environments.
Evaluation Criteria
THROUGHPUT:
- Between 2 and 15 minutes for detection
- Continuous operation with no defined runs
- 349-96 samples every 2 hours
- The system or device is currently semi-automated
- Device or system is intended for multiple detection assays
- 5-10 minutes is required for set-up
- 1-2 steps are required for detection
LOGISTICS:
- A day of training and technical skills are required
- Approximately the size of a carry-on luggage suitcase
- Between 5 and 25 kg
- Wireless and wired connections are available
- System or device uses batteries
- 2-4 hours battery life
OPERATIONS:
- Performance is not influenced by relative humidity
- Greater than 10 years expected life
- Results can be viewed in real-time
- The system could be adapted to a fully autonomous system with some effort
- The system software is closed and not available for modification
- The system hardware is open and available for modification
DETECTION:
- Excellent specificity. System has occasional false alarms
- under certain conditions (<2%)
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