Thermo Scientific The TVA2020TM toxic volatile gas analyzer is an intrinsically safe portable field analyzer that uses flame ionization (FID) and photoionization (PID) dual detector technology.
1、 Application of special principles:1. ThermoScientific TVA2020 toxic volatile gas analyzer can detect almost all organic and inorganic gas compounds. The TVA2020 analyzer can be configured for various applications, including US EPA Method 21 monitoring, on-site remediation, landfill monitoring, and comprehensive area surveys. The TVA2020 analyzer is equipped with a flame ionization detector, which can measure organic compounds with high sensitivity.
2. FID technology allows for a wide dynamic and linear range, making instrument detection stable and reproducible. This analyzer can be configured with both FID and PID technologies to achieve synchronous detection and enhance analytical performance. Compared to single detector technology, this dual configuration reads organic and inorganic compounds at a faster speed, providing more comprehensive gas coverage than devices of the same size.
3. After the calibration is completed, the TVA2020 analyzer can be customized by activating internal recording parameters, uploading monitoring paths, establishing Bluetooth connections, setting alarm levels, and setting response factors.
4. The optional Bluetooth communication function allows concentration data to be transmitted to handheld devices containing LDAR software databases, avoiding file transfer after monitoring and providing more access to path information.
5. The TVA2020 analyzer is 21% lighter than earlier models and more compact than most standalone FID instruments. The lightweight and compact design reduces aesthetic fatigue and achieves true portability. In addition, multiple options are available, such as basic or enhanced probes, portable cases, and hydrogen inflation components.

2、 Technical parameters of TVA2020 toxic volatile gas analyzer
| Accuracy: | FID from1.0~10000ppm,Reading of±10%or±0.1ppmTake the maximum value
|
| PID from0.5~500ppmThe Reading±20%or±0.5ppmTake the maximum value
|
| Repeatability: | FID 500ppmWhen methane is present,2%
|
| PID 100ppmWhen isobutene is present,1%
|
| Linear range: | FID 1.0~30000ppmmethane
|
| PID 0.5~2000ppmisobutene
|
| Response time: | PID Connect in500ppmIsobutene, reaching the final value90%The time is less than3.5s
|
| FID Connect in10000ppmMethane, reaching the final value90%The time is less than3.5s
|
| Sampling traffic: | At the entrance of the sampling probe, it is generally1L/min
|
| battery | in0At least able to work continuously at ℃10Hour; The full charge time of the battery is less than10Hour;
|
| Working time of hydrogen cylinder: | From the pressure of the gas cylinder to15.3Mpa(2,200Psi)Start, continuous work exceeding10hour
|
| Weight: | singleFIDdetector 4.17kg
|
| Dual detector 4.26kg
|
| Working environment temperature: | -10℃~+45℃
|
| zuiLow detection limit:
| zuiThe low detection limit is calculated based on the standard deviation of seven times the peak to peak noise
|
| PID 0.5ppmisobutene
|
| FID 0.5ppmmethane
|
| lifespan | PID Regular cleaning, exceeding2000hour
|
| FID exceed5000hour
|
| Data storage interval: | Auto Mode 1time/Second or1time/999Minutes, user selectable
|
| VOCorFEpattern, 2~30Second, user selectable
|
| Relative humidity at work: | 15%~95%
|