LED FLASHING MODES
EL-USB-1 features 2 LEDs.
•
The first LED flashes green or red to indicate alarm level status.
•
The second LED flashes orange to indicate a problem condition on the EL-USB-1.
It will flash red when the logged temperature has exceeded a Low or High alarm level. By default hold is disabled. In this mode the
red LED will no longer continue to flash after the logged temperature has returned to normal from an alarm condition.
Hold can be turned on via the control software. In this mode the red LED that indicates an alarm condition will continue to flash, even
after the logged temperature has returned to normal. The red LED will effectively have latched into its alarm condition. This feature
ensures that the user is notified that an alarm level has been exceeded, without the need to download the data from the logger.
Green double flash
The data logger is not currently logging, but is primed to start at a later date and time (delayed start).
Green single flash
The data logger is currently logging. No alarm.
Green and Orange single flash
The data logger is full and has stopped logging. No alarm.
Red single flash
The data logger is currently logging. Low alarm.
Red and Orange single flash
The data logger is full and has stopped logging. Low alarm.
Red double flash
The data logger is currently logging. High alarm.
Red and Orange double flash
The data logger is full and has stopped logging. High alarm.
Orange single flash
The battery is running low as its voltage has dropped below 3.3V. Data logging will continue until the battery
voltage drops below 2.8V.
No LEDs flash
The data logger is stopped, the battery is empty or there is no battery
Red/Green
LED
Orange
LED
EL-USB-1
Temperature Data Logger with USB Interface
www.lascarelectronics.com
Specifications liable to change without prior warning
Issue 12 07/2012 S.L Applies to EL-USB-1 Page 2 of 4
