Data Sheet
EL-USB-2-LCD
Temperature, Humidity and Dew Point
Data Logger with LCD Screen
www.lascarelectronics.com
Issue 11 08/2016 N.R Page 3 of 5
LED STATUS INDICATION
The EL-USB-2-LCD features two green/red LEDs, one to represent temperature measurement and the other to represent humidity
measurement. Each is clearly marked on the logger. To save power, the status indicaon alternates between the two channels
every 10 seconds. First you will see the status of the temperature channel and 10 seconds later you will see the status of the RH
channel and so on.
10 seconds later
°C (°F)RH% RH% °C (°F)
In normal operaon the green LED will ash, but will change to red if an alarm condion has been triggered. Using EL-WIN-USB it
is possible to set the alarm to remain acve even if the reading has returned to normal, in which case the alarm LED will connue
to ash red. This ‘Hold’ feature in the soware ensures the user is noed that at some point an alarm level has been exceeded,
without needing to download the data.
Green double ash
The data logger is not currently logging, but is primed to start at a later date and me (delayed start)
Green single ash
The data logger is currently logging. No alarm on the channel
Red single ash
The data logger is currently logging. Low alarm on the channel
Red double ash
The data logger is currently logging. High alarm on the channel
Green triple ash
The data logger is full and has stopped logging. No alarm on the channel
Red triple ash
The data logger is full and has stopped logging. Alarm (high, low or both) on the channel
No LEDs ash
The data logger is stopped, the baery is empty or there is no baery
Dual Red ash (every 60 seconds)
The data logger baery is running low as it’s voltage has dropped below 2.9V