EL-USB-2+ ORDERING INFORMATION High Accuracy Humidity, Standard Data Logger EL-USB-2+ Temperature and Dew Point (Data Logger, Software on CD, Battery) Replacement Battery BAT 3V6 1/2AA USB Data Logger FEATURES Higher accuracy sensor when compared with the EL-USB-2 0 to 100%RH measurement range -35 to +80C (-31 to +176F) measurement range Dew point indication via Windows control software USB interface for set-up and data download User-programmable alarm thresholds for %RH & T Status indication via red and green LEDs Supplied with replaceable internal lithium battery and Windows control software Environmental protection to IP67 This standalone data logger measures and stores up to 16,382 relative humidity and 16,382 temperature readings over 0 to 100%RH and -35 to +80C (-31 to +176F) measurement ranges. The user can easily set up the logger and view downloaded data by plugging the data logger into a PCs USB port and running the purpose designed software under Windows 2000, XP, Vista & 7. Relative humidity, temperature and dew point (the temperature at which water vapour present in the air begins to condense) data can then be graphed, printed and exported to other applica- tions. The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for 1 year. Specifications Minimum Typical Maximum Unit Measurement range 0 100 %RH Repeatability (short term) 0.1 %RH Relative Humidity Accuracy (overall error) 2.0* 4.0 %RH Internal resolution 0.5 %RH Long term stability 0.5 %RH/yr Measurement range -35 (-31) +80 (+176) C (F) Repeatability 0.1 (0.2) C (F) Temperature Accuracy (overall error) 0.3 (0.6) 1.5 (3) C (F) Internal resolution 0.5 (1) C (F) Dew Point Accuracy (overall error) 1.1 (2)** C (F) Logging rate every 10s every 12hr - Operating temperature range -35 (-31) +80 (+176) C (F) 1/2AA 3.6V Lithium Battery Life 1*** Year * This specifies the overall error in the logged readings for relative humidity measurements between 10 and 90%RH. ** This specifies the overall error in the calculated dew point for relative humidity measurements between 40 and 100%RH at 25C. *** Depending on sample rate and ambient temperature www.lascarelectronics.com Specifications liable to change without prior warning Issue 5 07/2012 S.L Applies to EL-USB-2+ Page 1 of 4 EL-USB-2+ High Accuracy Humidity, Temperature and Dew Point USB Data Logger WINDOWS CONTROL SOFTWARE Lascars EasyLog USB control software is supplied free of charge with each data logger. Easy to install and use, the control software runs under Windows 2000, XP, Vista & 7. The software is used to set-up the data logger as well as download, graph and export data to Excel. The software allows the following parameters to be configured: Logger name C, F Logging rate (10s, 1m, 5m, 30m, 1hr, 6hr, 12hr) High and low alarms Immediate and delayed logging Data rollover (allows unlimited logging periods by overwriting the oldest data when the memory is full) The latest version of the control software may be downloaded free of charge from www.lascarelectronics.com LED FLASHING MODES EL-USB-2+ features two bi-colour LEDs one LED represents temperature measurement (marked by C / F) and the other represents relative humidity (marked by %RH). To save power, the status indication alternates between the two channels every 10 seconds i.e. the temperature channel flashes and 10 seconds later the relative humidity channel flashes, repeating for the duration of logging activity. RH% C (F) RH% C (F) 10 seconds later 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 on the channel. Red single flash The data logger is currently logging. Low alarm on the channel. Red double flash The data logger is currently logging. High alarm on the channel. Green triple flash The data logger is full and has stopped logging. No alarm on the channel. Red triple flash The data logger is full and has stopped logging. Alarm (high, low or both). RH% C (F) Red/ Red/ No LEDs flash Green LED Green LED The data logger is stopped, the battery is empty or there is no battery fitted. Dual Red flash (every 60 seconds) The data logger battery is running low as its voltage has dropped below 2.9V www.lascarelectronics.com Specifications liable to change without prior warning Issue 5 07/2012 S.L Applies to EL-USB-2+ Page 2 of 4