OPERATION
2 - 4
2.3 Power
On/Off
To turn on
the UltraRAE Compound Specific PID monitor,
press
[MODE]
key for one second and release. The audio
buzzer will beep once and the display will show “ON!..” and
then “Ver #.##” to indicate the unit’s current firmware version
number. The model number, current date and time, unit internal
temperature, last calibration date and time, battery voltage, and
shut off voltage are displayed.
To turn off
the UltraRAE Compound Specific PID monitor,
press and hold the
[MODE]
key for 5 seconds. The monitor
will beep once per second during the power-down sequence
with a count down timer showing the number of remaining
seconds. The message “Off!..” flashes on the LCD display and
the display will go blank indicating that the monitor is turned
off.
Data protection during power off
When the monitor is turned off, all the current real time data
including last measured value are erased. However, the datalog
data is preserved in non-volatile memory. Even if the battery is
disconnected, the datalog data will not be lost. During power
off period, the real time clock will continue to operate until the
battery is completely drained (usually in 5-7 days without any
charging). If the battery is completely drained or is
disconnected from the monitor for more than 30 minutes, the
real time clock will be lost. In this case, the user needs to enter
the real time clock information again, as described in Section 4,
or send the PC clock during configuration.
