Sensor Warm Up Times

WARNING! 

For optimal sensor performance, allow sensors 24 hours (72 hours for ETO) to acclimate to application conditions before performing an initial calibration.

Failure to follow this warning can result in serious personal injury or death.

XIR PLUS: ≤ 5 min	CO: 30 min (see below)	NO2: ≤ 5 min
H2S: ≤ 5 min	O2: 30 min	CLO2: ≤ 5 min
SO2: ≤ 5 min	HCL: ≤ 10 min	HCN: ≤ 5 min
Cl2: ≤ 10 min	HF: ≤ 5 min	H2: ≤ 5 Min
NH3: ≤ 5 min	ETO: ≤ 60 min (see below)	Low O2: ≤ 30 min
Cat Bead: ≤ 5 min	NO: ≤ 10 min

Carbon monoxide and ethylene oxide sensors, gas codes 10, 11, 12, 14, and 71 may require initial warm-up periods longer than 30 minutes. If the 30-minute warm up is over, the sensor may show a positive reading that exceeds alarm levels. In the event of a short-term power outage, the warm-up time for carbon monoxide and ethylene oxide sensors will be significantly less. See Table 10 Warm Up Times to estimate required warm-up time.