Initial Startup

The first time the TG5000 is powered on, the analog output defaults to the Maintenance Mode setting (default 3.5 mA) and the following will appear on the display while the LEDs cycle from GREEN, to RED, to AMBER, then to GREEN: ULTIMA

• X5000 Logo with Software Version No.
• Tachometer countdown
• MSA Logo

XCell oxygen and carbon monoxide (CO) sensors require a 30-minute start-up time before being fully functional. During this time the analog output signal will be at its maintenance (3.5 mA) level while the display indicates the 30-minute countdown. All other XCell sensors have a 2-minutecountdown time during which the analog output signal will be at its maintenance (3.5 mA) level. A full calibration is recommended after one hour of a sensor being installed and acclimated to the environmental conditions. See Calibration for calibration details.