MEASUREMENT

Operating Principle

3-electrode electrochemical

Measurement Range

0-2000 ppm SO₂

Maximum Overload

5000 ppm SO₂

Filter

None

Sensitivity*

0.10 ± 0.02 μA/ppm

Response Time (T₉₀)*

< 30 seconds

Baseline Offset (clean air)*

0 - 2 ppm equivalent

Maximum Zero Shift

(+20°C to +40°C)

5 ppm equivalent

Resolution

When using recommended electronics

1 ppm

Repeatability

1% of signal

Linearity

Linear

ELECTRICAL

Recommended Load Resistor

10 ?

Bias Voltage

Not Required

MECHANICAL

Weight

10 g nominal

Orientation

Any

ENVIRONMENTAL

Operating Temperature Range

-20°C to +50°C ^{See note 1}

Recommended Storage Temp

0°C to 20°C

 Operating Pressure Range

Atmospheric ± 10%

Pressure Coefficient

0.004% signal / mbar

Operating Humidity Range

15 - 90% RH non-condensing

LIFETIME

Long Term Sensitivity Drift

< 2% signal loss/month

Expected Operating Life

Two years in air

Storage Life

6 months in CTL container