EL-USB-1-LCD

Temperature Data Logger with LCD

www.lascarelectronics.com

Specifications liable to change without prior warning

Issue 3

03/2011

S.L

Applies to EL-USB-1-LCD

Page 3 of 5

LED FLASHING MODES

EL-USB-1-LCD features two LEDs that indicate the logging, battery and alarm status:

• The first LED flashes red (R) to indicate that the EL-USB-1-LCD is in an alarm condition. It will flash when the logged temperature has

exceeded a Low or High alarm level.

• The second LED flashes green (G) to indicate that the EL-USB-1-LCD is not in an alarm condition.

Hold is enabled by default, which forces the logger to continue flashing the red LED after an alarm, even when the temperature has

returned to normal. 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.

Hold can be turned off via the control software. The red LED will then only flash whilst the logger is in an alarm condition. When the tem-

perature returns to normal, the green LED will flash.

Additional LED modes are explained below:

Green single flash (10 seconds)

The data logger is currently logging. No alarm.

Green single flash (20 seconds)

The data logger is currently logging. No alarm. However, the battery is low and should be replaced before

logging important data.

Green single flash (30 seconds)

The data logger is not currently logging, but is primed to start at a later date and time (delayed start).

Green double flash (20 seconds)

The data logger is full and has stopped logging. No alarm.

Red single flash (10 seconds)

The data logger is currently logging. Low alarm.

Red single flash (20 seconds)

The data logger is currently logging. Low alarm. However, the battery is low and should be replaced before

logging important data.

Red double flash (10 seconds)

The data logger is currently logging. High alarm.

Red double flash (20 seconds)

The data logger is currently logging. High alarm. However, the battery is low and should be replaced before

logging important data.

Red/Green single flash (20 seconds)

The data logger is full and has stopped logging. Alarm (high, low or both).

No LEDs flash

The data logger is stopped, the battery is empty or there is no battery fitted.

Green LED

Red LED