Sample Method

Diffusion or flow through (50 to 100 ml/min)

Display LCD

Independent CO2 and temperature readings. Calculates and displays ventilation rates.

Operating Conditions

32°F to 122°F (0°C to 50°C)
0 to 95% RH, non-condensing

Storage Temperatures

-4°F to 140°F (-20°C tp 60°C)

Certification

FCC Class 15 Part B

Warranty

18 months parts and labor

Performance-CO2 Channel

Measurement Range

0 to 10,000 ppm display
0 to 4000 ppm voltage output

Display Resolution

±1 ppm

Accuracy

±50 ppm or 5% of reading, whichever is greater

Repeatability

±20 ppm

Temperature Dependence

±0.1% of reading per °C or ±2 ppm per °C, whichever is greater, referenced at 25°C.

Pressure Dependence

0.13% of reading per mmHg (corrected via user input for elevation)

Response Time

<60 seconds for 90% of step change

Warm-Up Time

<60 seconds at 72°F (22°C)

Calibration Interval

12 months, offset adjustment using single gas at 0 to 1000 ppm CO2. Full factory calibration available.

Performance-Temperature Channel

Temperature Range

Voltage output: 32°F to 104°F (0°C to 40°C)
Display: 32°F to 122°F (0°C to 50°C)

Display Resolution

0.1°F (0.1°C)

Display Options

°F, °C, of off. Set with panel button.

Accuracy

±2°F (±1°C)

Response Time

20 to 30 minutes (case must equilibrate with environment)

Calibration Interval

12 months, offset adjustment using temperature standard at 50°F to 86°F (10°C to 30°C). Full factory calibration available.