Built with a rugged IP40-rated housing, this base kit includes the control unit and analyzer box with automatic data logging. Designed to work with compatible sensors, probes, and hardware upgrades (sold separately), select the configurations you need to meet your specific measurement requirements. Supporting up to six gas sensors, it is ideal for specialized industrial and commercial combustion applications.
This base kit requires application-specific configuration. Please contact an ITM specialist for assistance selecting and configuring the system for your needs and final pricing.
Built with a rugged IP40-rated housing, this base kit includes the control unit and analyzer box with automatic data logging. Designed to work with compatible sensors, probes, and hardware upgrades (sold separately), select the configurations you need to meet your specific measurement requirements. Supporting up to six gas sensors, it is ideal for specialized industrial and commercial combustion applications.
This base kit requires application-specific configuration. Please contact an ITM specialist for assistance selecting and configuring the system for your needs and final pricing.
Whether you are testing for compliance or troubleshooting and tuning your combustion process, the Testo 350 has everything you need. The ultra-rugged construction, coupled with simple, intuitive operation and innovative measurement technology, sets the standard in emission testing and combustion analysis. The Testo 350's exclusive sensor design, patented gas paths, active sample conditioning, intelligent automatic data logging, and testing programs work together seamlessly, providing a lightweight and simple-to-use emissions monitoring solution. In addition, the 350's housing, bump protection, and industrial connectors enable it to stand up to any field condition. Simply click on the application icon and the analyzer automatically begins its setup process. The proper parameters, correct calculations, and real diagnostics are displayed in HD color.
Features
Control unit:
Analyzer box:
Built for Superior Job Site Performance…
Proven technologies provide more testing versatility.
Sensing technologies, such as electrochemical and infrared, combined to offer long-term measurement stability and superior response.
Digital sensors provide numerous site benefits, including:
Advanced temperature monitoring combined with new thermal control strategies result in unwavering temperature stability and confidence in the measurement.
Smarter diagnostics provide more information. When testing conditions are not correct, detailed messages explain the reason and corrective action.
Designed for the job site with features to make testing easier
The flow-controlled pump and gas paths (built with non-reactive materials) set the standard in sampling. No need to fumble with valves and flow meters because the 350 automatically corrects for positive or negative pressure. Combine these with Teflon-lined sample hoses that utilize high-velocity sample transport and you get faster response and better sample integrity.
The thermoelectric (Peltier-type) sample conditioner and peristaltic pump automatically removes moisture and provides a dry sample for more accurate results for EPA testing & compliance.
The dilution system has proven to be essential in many applications where high concentrations are encountered. The system increases sensor life by reducing the concentrations and it automatically displays corrected values. It essentially eliminates problems with cross sensitivity. For example, the system ensures that CO measurements on rich burn engines are accurate and account for cross sensitive gases (H2 ).
Applications
| Control Unit | |
| Memory | 2 MB (250,000 measurement values) |
| Protection Class | IP 40 |
| Battery | Type: Li-Ion Life: 5 hours (without wireless connection) |
| Analyzer Box | |
| O2 | Range: 0 to 25 Vol.% O₂ Accuracy: ±0.2% of vol. (0 to 25 Vol.%) Resolution: 0.01 Vol.% O₂ (0 to 25 Vol.%) Reaction time: 20 seconds Reaction type: t₉₅ |
| CO (H2 compensated)* | Range: 0 to 10000 ppm CO Accuracy: ±5 ppm (0 to 199 ppm) ±5% of mv (200 to 2000 ppm) ±10% of mv (2001 to 10000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm CO (0 to 10000 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| Clow (H2 compensated)* | Range: 0 to 500 ppm CO Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 500 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm CO (0 to 500 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| NO | Range: 0 to 4000 ppm NO Accuracy: ±5 ppm (0 to 99 ppm) ±5% of mv (100 to 1999.9 ppm) ±10% of mv (2000 to 4000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm NO (0 to 3000 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| NOlow | Range: 0 to 300 ppm NO Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 300 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm NO (0 to 300 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| NO2 | Range: 0 to 500 ppm NO₂ Accuracy: ±5 ppm (0 to 99.9 ppm) ±5% of mv (100 to 500 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm NO₂ (0 to 500 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| SO2 | Range: 0 to 5000 ppm SO₂ Accuracy: ±5 ppm (0 to 99 ppm) ±5% of mv (100 to 2000 ppm) ±10% of mv (2001 to 5000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm SO₂ (0 to 5000 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| CO2 (IR) | Range: 0 to 50 Vol.% CO₂ Accuracy: ±0.3 Vol.% CO₂ + 1% of mv (0 to 25 Vol.%) ±0.5 Vol.% CO₂ + 1.5% of mv (>25 to 50 Vol.%) Resolution: 0.01 Vol.% CO₂ (0 to 25 Vol.%) 0.1 Vol.% CO₂ (>25 Vol.%) Reaction time: 10 seconds Reaction type: t₉₀ |
| H2S | Range: 0 to 300 ppm H₂S Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 300 ppm) Resolution: 0.1 ppm H₂S (0 to 300 ppm) Reaction time: 35 seconds Reaction type: t₉₀ |
| Battery | Life: approximately 2.5 hours at maximum load |
| General Specifications | |
| Dilution System | Single dilution with selectable dilution factor of 0, 2, 5, 10, 20 or 40 on an individual slot; additional error ±2% of measured value Dilution of all sensors at factor 5; additional error ±5% of measured value O2, CO2 (IR) and CxHy are not displayed while active Diluted ranges: CO: 2500 to 50,000 ppm COlow: 500 to 2500 ppm NO: 1500 to 20,000 ppm NOlow: 300 to 1500 ppm NO2: 500 to 2500 ppm SO2: 500 to 25,000 ppm H2S: 200 to 1500 ppm |
| Pump | Through-flow: 1 l/min with through-flow monitoring Maximum hose length: 53' (16.2 m), corresponding to 5 probe hose extensions |
| Gas Path Limits | Maximum dust load: 20 g/m³ dust in flue gas Maximum positive pressure: 20" H2O (50 mbar) Maximum negative pressure: -120" H2O (-300 mbar) Maximum humidity load: 158°F (70°C) dewpoint temperature at the analyzer box gas input |
| Power Supply | AC mains unit: 100 to 240 V AC (50 to 60 Hz) DC voltage input: 11 to 40 V DC Trigger input: 5 to 12 V (rising or trailing edge), pulse width >1 s, load 5 V at maximum 5 mA and 12 V at maximum 40 mA |
| Interfaces | USB; Testo databus; optional Bluetooth® wireless transmission; infrared for printer |
| Environmental Condiitons | Operating temperature: 23 to 113°F (-5 to 45°C) Storage temperature: -4 to 122°F (-20 to 50°C) Housing material: ABS Protection class: IP40 |
| Dimensions | Control unit: 10 x 4.5 x 2.3" (25.4 x 11.4 x 5.8 cm) Analyzer box: 13 x 5 x 17.2" (33 x 12.7 x 43.7 cm) Transport case: 22.5 x 18.5 x 8.5" (57.2 x 47 x 21.6 cm) |
| Weight | Control unit: 0.97 lbs (440 g) Analyzer box: 10.58 lbs (4.8 kg) |
Click on a category to view a selection of compatible accessories with the Testo 350 Process Kit.
| Control Unit | |
| Memory | 2 MB (250,000 measurement values) |
| Protection Class | IP 40 |
| Battery | Type: Li-Ion Life: 5 hours (without wireless connection) |
| Analyzer Box | |
| O2 | Range: 0 to 25 Vol.% O₂ Accuracy: ±0.2% of vol. (0 to 25 Vol.%) Resolution: 0.01 Vol.% O₂ (0 to 25 Vol.%) Reaction time: 20 seconds Reaction type: t₉₅ |
| CO (H2 compensated)* | Range: 0 to 10000 ppm CO Accuracy: ±5 ppm (0 to 199 ppm) ±5% of mv (200 to 2000 ppm) ±10% of mv (2001 to 10000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm CO (0 to 10000 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| Clow (H2 compensated)* | Range: 0 to 500 ppm CO Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 500 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm CO (0 to 500 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| NO | Range: 0 to 4000 ppm NO Accuracy: ±5 ppm (0 to 99 ppm) ±5% of mv (100 to 1999.9 ppm) ±10% of mv (2000 to 4000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm NO (0 to 3000 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| NOlow | Range: 0 to 300 ppm NO Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 300 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm NO (0 to 300 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| NO2 | Range: 0 to 500 ppm NO₂ Accuracy: ±5 ppm (0 to 99.9 ppm) ±5% of mv (100 to 500 ppm) *Accuracy (plus): ±2 ppm ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 0.1 ppm NO₂ (0 to 500 ppm) Reaction time: 40 seconds Reaction type: t₉₀ |
| SO2 | Range: 0 to 5000 ppm SO₂ Accuracy: ±5 ppm (0 to 99 ppm) ±5% of mv (100 to 2000 ppm) ±10% of mv (2001 to 5000 ppm) *Accuracy (plus): ±2 ppm ±2% of mv ±2% of mv *Measurement accuracy can be increased by performing an on-site pre-test calibration procedure Resolution: 1 ppm SO₂ (0 to 5000 ppm) Reaction time: 30 seconds Reaction type: t₉₀ |
| CO2 (IR) | Range: 0 to 50 Vol.% CO₂ Accuracy: ±0.3 Vol.% CO₂ + 1% of mv (0 to 25 Vol.%) ±0.5 Vol.% CO₂ + 1.5% of mv (>25 to 50 Vol.%) Resolution: 0.01 Vol.% CO₂ (0 to 25 Vol.%) 0.1 Vol.% CO₂ (>25 Vol.%) Reaction time: 10 seconds Reaction type: t₉₀ |
| H2S | Range: 0 to 300 ppm H₂S Accuracy: ±2 ppm (0 to 39.9 ppm) ±5% of mv (40 to 300 ppm) Resolution: 0.1 ppm H₂S (0 to 300 ppm) Reaction time: 35 seconds Reaction type: t₉₀ |
| Battery | Life: approximately 2.5 hours at maximum load |
| General Specifications | |
| Dilution System | Single dilution with selectable dilution factor of 0, 2, 5, 10, 20 or 40 on an individual slot; additional error ±2% of measured value Dilution of all sensors at factor 5; additional error ±5% of measured value O2, CO2 (IR) and CxHy are not displayed while active Diluted ranges: CO: 2500 to 50,000 ppm COlow: 500 to 2500 ppm NO: 1500 to 20,000 ppm NOlow: 300 to 1500 ppm NO2: 500 to 2500 ppm SO2: 500 to 25,000 ppm H2S: 200 to 1500 ppm |
| Pump | Through-flow: 1 l/min with through-flow monitoring Maximum hose length: 53' (16.2 m), corresponding to 5 probe hose extensions |
| Gas Path Limits | Maximum dust load: 20 g/m³ dust in flue gas Maximum positive pressure: 20" H2O (50 mbar) Maximum negative pressure: -120" H2O (-300 mbar) Maximum humidity load: 158°F (70°C) dewpoint temperature at the analyzer box gas input |
| Power Supply | AC mains unit: 100 to 240 V AC (50 to 60 Hz) DC voltage input: 11 to 40 V DC Trigger input: 5 to 12 V (rising or trailing edge), pulse width >1 s, load 5 V at maximum 5 mA and 12 V at maximum 40 mA |
| Interfaces | USB; Testo databus; optional Bluetooth® wireless transmission; infrared for printer |
| Environmental Condiitons | Operating temperature: 23 to 113°F (-5 to 45°C) Storage temperature: -4 to 122°F (-20 to 50°C) Housing material: ABS Protection class: IP40 |
| Dimensions | Control unit: 10 x 4.5 x 2.3" (25.4 x 11.4 x 5.8 cm) Analyzer box: 13 x 5 x 17.2" (33 x 12.7 x 43.7 cm) Transport case: 22.5 x 18.5 x 8.5" (57.2 x 47 x 21.6 cm) |
| Weight | Control unit: 0.97 lbs (440 g) Analyzer box: 10.58 lbs (4.8 kg) |
Click on a category to view a selection of compatible accessories with the Testo 350 Process Kit.
