Power on
Press
for approximately three seconds to power on the unit. The instrument operator will see four start-up screens (shown
below) as the unit completes its start-up diagnostics. If the unit passes all diagnostic tests, the gas-monitoring screen will be
activated and the unit will be in operation mode. If any test fails, the unit will display an error code (see "Alarms and Warnings" or
refer to the Product Manual).
Start-up screens.
Visual test*
*Displays all icons and values that can appear on the display screen. Each appears on-screen only when it is relevant to the task being
performed. **The up arrow (
) indicates the next calibration due date. The down arrow (
▲
Gas monitoring screen.
No-fault indicator
Gas concentration
Power off
To power off the unit, press
; hold for the displayed five-second countdown. A unit that is configured for always-on operation
may require the entry of a security code to complete the shutdown process.
Firmware version
Calibration date**
Countdown
) indicates the last calibration date (shown).
▼
Installed sensor type
Unit of measure
Introduction
3