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Appendix B: Toxic Sensor Cross-Sensitivity
The table below provides the cross-sensitivity response of the IQ Force toxic gas sensors to common interference
gases. The values are expressed as a percentage of the primary sensitivity, or the reading of the sensor when ex-
posed to 100ppm of the interfering gas at 20ºC. These values are approximate. The actual values depend on the age
and condition of the sensor. Sensors should always be calibrated to the primary gas type. Cross-sensitive gases
should not be used as sensor calibration surrogates without the express written consent of Sperian Instrumentation.
SENSOR
Carbon Monoxide (CO)
Carbon Monoxide (CO-H)
Hydrogen Sulfide (H
S)
2
Appendix C: Specifications
Detector dimensions: 4.75" (12 cm) x 3.25" (8.3 cm) x 2" (5.1 cm)
Weight: 12.8 ounces (363 g)
Operating temperature range: -20 °C to +50 °C (-4 °F to +122 °F)
Battery charging temperature range: +5 °C to +30 °C (+40 °F to +86 °F)
Storage temperature: -20°C to +50°C (-4°F to +122°F)
Operating humidity: 20% to 90% RH continuous, 0% to 95% RH intermittent
Dust and moisture ingress: IP 67 (instrument), IP65 (pump)
Detection ranges:
Carbon Monoxide: 0 to 999 ppm
Hydrogen Sulfide: 0 to 200 ppm
Oxygen: 0 to 30.0% vol.
Combustible Gas: 0 to 100% LEL, 0 to 5% CH
Audible alarm: 92 dB at 30 cm
Visual alarm: Red LED visible from front, top and sides
Display: Multi-row LCD
Backlight: Automatic in alarm conditions and upon keypress, color is alarm-dependent
Self-test: Initiated at activation
Calibration: Manual and automated via docking station
Nominal voltage: 4.2 volts
Warranty: 2 years (monitor), 1 or 2 years (sensors, depending on type)
CO
H
S
SO
NO
2
2
100
<1
<1
5
100
<1
<1
<1
<2
100
<10
<4
NO
Cl
ClO
H
2
2
2
2
<1
-1
-3
50
<1
<1
N/D
5
-20
-25
-50
<1
4
5
HCN
HCl
NH
C
3
2
15
3
0
25
<1
N/D
0
<30
N/D
N/D
<1
<1
H
C
H
4
2
2
250
100
N/D
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