When powered on, the probe starts up within 2 seconds and the digital/analog outputs are activated. The probe performs a start-up purge, which takes approximately 4 minutes. During the purge, hydrogen peroxide, relative humidity, and relative saturation measurements are not available. If the probe is in analog mode, analog outputs are in the error state (default: 3.6 mA) during the purge.
Measurements from the outputs (digital and analog) will reach specified accuracy after a 8½-minute warm-up period. For this reason, you should design your system so that it does not rely on measurements from the probe during this time.