Owner's manual
5
MicroLite LCD Status when Connected to USB
The USB connection status is always displayed on the MicroLite LCD when connected
or disconnected from a USB port.
The LCD flashes USB ON once when connected and flashes USB OFF once when
disconnected from the USB port.
The logger LED (located adjacent to the logger’s USB connector) also lights up green
when connected to the USB port.
If the MicroLite is in Run mode when connected to the USB port, the LCD will only
display the current temperature reading and will not scroll through the other readings.
If the MicroLite is in Stop mode when connected to the USB port, the LCD will display
STOP. If the logger had recorded an alarm during the previous data logging session,
then the LCD will also scroll through the alarm durations.
1.6. The MicroLite Battery
The MicroLite runs on a standard 3V CR2032 lithium battery.
The battery maintains the MicroLite’s Real-Time Clock (RTC). The logger’s time/date
settings are synchronized with the PC when you perform a Setup. Removing the battery
will return the logger’s time/date settings to the default of 01 Jan 2004.
1.6.1. Battery Level
The MicroLite battery level indication is provided in the MicroLab Lite software’s Setup
dialog (see page 9).
The MicroLite battery’s maximum lifespan is approximately two years. This long battery
life is achieved by the MicroLite putting itself to sleep between data recordings. While in
sleep mode, the data logger consumes a minimal amount of power.
MicroLite will wake up for a few micro-seconds whenever it has to record a data sample
or display new data on the LCD screen.
1.6.2. Replacing the Battery
Figure 1: MicroLite battery compartment
As shown in the figure above, the MicroLite internal lithium battery is located under a
removable plastic cover.
To replace the battery, simply use the groove in the plastic cover to twist the cover open,
and pull out the battery. When twisting the cover back into position, ensure that the small
ridge on the battery cover is in line with the similar ridge on the logger case, as indicated
in the figure below.
Internal
battery
compartment