Features
0 to 100%RH measurement range-35 to +80°C (-31 to +176°F) measurement rangeDew point indication via Windows control softwareUSB interface for set-up and data downloadUser-programmable alarm thresholds for %RH & TStatus indication via red and green LEDsHigh contrast LCD, with two and a half digit temperature and humidity display functionImmediate, delayed & push to start loggingSupplied with replaceable internal lithium battery and Windows control softwareEnvironment protection to IP67
Specification | Min. | Typ. | Max. | Unit |
Relative Humidity | Measurement range | 0 | | 100 | %RH |
Repeatability (short term) | | ±0.1 | |
Accuracy (overall error) (20-80%RH) | | ±3.0* | ±5.0 |
Internal resolution | | 0.5 | |
Long term stability | | 0.5 | |
Temperature | Measurement range | -35 (-31) | | +80 (+176) | °C (°F) |
Repeatability | | ±0.1 (±0.2) | |
Accuracy (overall error) (20-80%RH) | | ±0.5 (±1) | |
Internal resolution | | 0.5 (1) | |
Dew Point | Accuracy (overall error) 20-80% RH) | | ±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 20 and 80%RH
** This specifies the overall error in the calculated dew point, for realtive humidity measurements between 40 and 100%RH at 25°C
*** Depending on sample rate, ambient temperatures and use of alarm LEDs
****At temperatures below -20ºC (-4ºF) the LCD will exhibit slower response times of approximately 10 seconds
Dimensions
LED Flashing Modes EL-USB-2-LCD features 2 bi-colour LEDs; one LED represents temperature measurement, the other represents RH. Each is clearly marked on the logger. To save power, the status indicator alternates between the two channels every 10 seconds. First you will see the status of the temperature logging and 10 seconds later you will see the status of the RH logging and so on.
Display and Status Functions The EL-USB-2-LCD features a high contrast LCD and two bi-colour LEDs. The LCD shows logged temperature and humidity values using seven segment numbers, along with annunciators. The LCD can also show information regarding the logging status.
The LCD shows six different recorded readings, which can be cycled through using the built-in push button. The most revent logged value, maximum logged value and minimum logged value can be displayed seperately for humidity and temperature. In addition, logging and alarm status is shown using two high intensity LEDs.
LCD Indication
*If the logger is set to 'LCD off' or 'LCD on for 30 seconds' mode, then it will only be shown after the button is pressed. Otherwise the display will remain blank.
EL-WIN-USB (Control Software) Lascar's 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 (up to 16 characters)°C or °FLogging Rate (10s, 1m, 5m, 30m, 1hr, 6hr, 12hr)High and low alarm levelsStart date and time
The latest version of the software can be downloaded below.