EL-USB-1-RCG features two LEDs that indicate the logging, battery and alarm status:
The first LED flashes red to indicate that the EL-USB-1-RCG 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 to indicate that the EL-USB-1-RCG is not in an alarm condition. Latching 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 featureensures that the user is notified that an alarm level has been exceeded, without the need to download the data from the logger. Latching can be turned off via the control software. The red LED will then only flash while the logger is in an alarm condition. When the temperature returns to normal, the green LED will flash.
Green LED flashes once every 30 seconds
The data logger is not currently logging, but is primed to start at a later date and time.
Green LED flashes once every 10 seconds
The most recently logged temperature is between the low alarm and high alarm levels.
Red LED flashes once every 10 seconds
The most recently logged temperature is equal to or lower than the low alarm level.
Note: If latching is enabled, then the alarm condition may have been triggered by a previous event.
Red LED flashes twice every 10 seconds
The most recently logged temperature is equal to or higher than the high alarm level.
Note: If latching is enabled, then the alarm condition may have been triggered by a previous event.
Green LED flashes once every 20 seconds
The battery is low and the most recently logged temperature is between the Low alarm and high alarm levels.
Red LED flashes once every 20 seconds
The battery is low and the most recently logged temperature is equal to or lower than the low alarm level.
Note: If latching is enabled, then the alarm condition may have been triggered by a previous event.
Red LED flashes twice every 20 seconds
The battery is low and the most recently logged temperature is equal to or higher than the high alarm level.
Note: If latching is enabled, then the alarm condition may have been triggered by a previous event
Green LED flashes twice every 20 seconds
The logger is full and the most recently logged temperature is between the Low alarm and high alarm levels.
Red and Green LEDs flash alternately every 20 seconds
The logger is full and a stored value is equal to or exceeds the low or high alarm level.
Note: This state is only possible if latching is enabled.
No LEDs Flash
The data logger is stopped, the battery is dead, or there is no battery.
