TSI IAQ-Calc 7545 Indoor Air Quality Monitor
TSI’s IAQ-Calc Meters are outstanding instruments for investigating and monitoring indoor air quality (IAQ). The Model 7515 is a cost-effective meter for carbon dioxide (CO2) measurements. The Model 7535 adds data logging of CO2. The Models 7525 and 7545 simultaneously measure and data log multiple parameters. The Model 7525 measures CO2, temperature, humidity, and calculates dew point, wet bulb temperature, and % outside air. The Model 7545 adds carbon monoxide (CO).
Additional Information
- Low-drift NDIR CO2 sensor for stable, accurate readings
- Sampling function records multiple point measurements
- Ergonomic, overmolded case design
- Temperature and relative humidity measurements help determine thermal comfort
- Calculates % outside air from either CO2 or temperature
- Directly calculates dew point and wet bulb temperatures
- Electrochemical sensor measures CO
- Display up to three parameters
- TSI LogDat2™ software permits easy transfer of data to a computer
- Conduct IAQ evaluations
- Verify building HVAC system performance
- Examine building IAQ conditions to optimize worker productivity
- Comply with regulations and guidelines
Carbon Monoxide
Sensor Type: Electro-chemical
Range: 0 to 500 ppm
Accuracy: +/- 3% of reading or 3 ppm, whichever is greater
Resolution: 0.1 ppm
Response Time: <60 seconds to 90% step change
Carbon Dioxide
Sensor Type: Dual-wavelength NDIR (non-despersive Infrared)
Range: 0 to 5,000 ppm
Accuracy: +/- 3% of reading or +/- 50 ppm, whichever is greater
Resolution: 1 ppm
Response Time: 20 seconds
Temperature
Sensor Type: Termistor
Range: 32 to 140°F (0 to 60°C)
Accuracy: +/- 1.0°F (0.6°C)
Resolution: 0.1°F (0.1°C)
Response Time: 30 seconds (90% of final value, air velocity at 400 ft/min [2 m/s])
Relative Humidity
Sensor Type: Thin-Film capacitive
Range: 5 to 95% RH
Accuracy: +/-3% RH
Resolution: 0.1% RH
Response Time: 20 seconds (for 63% of final value)
% Outside Air
Range: 0 to 100%
Resolution: 0.1%
Barometric Pressure
Range: 0 to 100%
Accuracy: +/-2% of reading
