EL-USB-1 Lascar Electronics, EL-USB-1 Datasheet - Page 2

• Manufacturer Part Number: EL-USB-1
• Description: Data Logger, Temperature, w/Direct USB Interface
• Manufacturer: Lascar Electronics
• Type: Loggerr

Specifications of EL-USB-1

• Sample Rate: Every 10 Second to Every 12 Hours
• Temperature Accuracy: ±1 (–2) °C (°F)
• Temperature, Range, Measuring: –35 (–31) to 80 (176) °C (°F)
• Lead Free Status / Rohs Status: RoHS Compliant part

EL-USB-1
Specifications liable to change without prior warning
LED FLASHING MODES
EL-USB-1 features 2 LEDs.
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.
- The first LED flashes orange (O) to indicate a problem condition on the EL-USB-1.
- The second LED flashes green or red (G/R) to indicate alarm level status.
It will flash red when the logged temperature has exceeded a Low or High alarm level.
O
G/R
Green LED flashes twice every 10 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.
Green and Orange LEDs flash once every 10 seconds
- The most recently logged temperature is between the Low alarm and High alarm levels,
NB: If hold is enabled, then a flashing green LED indicates that no alarm condition has ever been logged.
Red LED flashes once every 10 seconds
- The most recently logged temperature is equal to or lower than the Low alarm level.
Red and Orange LEDs flash once every 10 seconds
- The most recently logged temperature is equal to or lower than the Low alarm level
Red LED flashes twice every 10 seconds
- The most recently logged temperature is equal to or higher than the High alarm level,
Red and Orange LEDs flash twice every 10 seconds
- The most recently logged temperature is equal to or higher than the High alarm level
Orange LED flashes once every 60 seconds
- The battery is reaching the end of its useful life, as its voltage has dropped below 3.3V.
- Data logging continues until the battery voltage drops below 2.8V.
No LEDs flash
- The logger is not being used.
- The logger was logging, but has now shut down due to a flat battery (voltage has dropped below 2.8V).
or
but the data logger's memory is full, so no more readings are stored.
(if hold is enabled, then the alarm condition may have been triggered a while ago)
(if hold is enabled, then the alarm condition may have been triggered a while ago),
but the data logger's memory is full, so no more readings are stored.
(if hold is enabled, then the alarm condition may have been triggered a while ago).
(if hold is enabled, then the alarm condition may have been triggered a while ago),
but the data logger's memory is full, so no more readings are stored.
Plug the data logger into the PC and run the control software to find out which condition applies.
www.lascarelectronics.com
Temperature Data Logger with USB Interface
EL-USB-1
Issue 7
04/2007
P.P.
No: 0754 - Page 2 of 3
Applies to EL-USB-1/3