EL-USB-2 Lascar Electronics, EL-USB-2 Datasheet - Page 4

• Manufacturer Part Number: EL-USB-2
• Description: Data Logger, Temperature/Humidity, with USB Interface
• Manufacturer: Lascar Electronics
• Type: Loggerr

Specifications of EL-USB-2

• Accuracy: –3.0 %RH
• Humidity: 0-100 %RH
• Sample Rate: Every 10 Seconds to Every 12 Hours
• Temperature Accuracy: ±0.5 (±1.0) °C (°F)
• Temperature, Range, Measuring: –35 (–31) to 80 (176) °C (°F)
• Lead Free Status / Rohs Status: RoHS Compliant part

EL-USB-2
Specifications liable to change without prior warning
DIMENSIONS
BATTERY REPLACEMENT
CAUTION
We recommend that you replace the battery every 12 months, or prior to logging critical data.
The EL-USB-2 does not lose its stored readings when the battery is discharged or when the battery is replaced; the
data logging process will however be stopped and cannot be re-started until the battery has been replaced and the
logged data has been downloaded to PC.
Only use 3.6V 1/2AA lithium batteries. Check with your supplier that the battery you are ordering is 'press fit' and
is not fitted with solder tags. Before replacing the battery, remove the EL-USB-2 from the PC.
Note:
Leaving the EL-USB-2 plugged into the USB port for longer than necessary will cause some of the battery capacity
to be lost.
Exposure of the internal sensor to chemical vapours such as those produced by some plastics and foamed materials
may interfere with the internal sensor and cause inaccurate readings to be logged, therefore ensure that the logger is
used in a ventilated area i.e. air exchange is allowed.
In a clean environment, this will slowly rectify itself. However, exposure to extreme conditions or chemical vapours
will require the following reconditioning procedure to bring the internal sensor back to calibration state.
80°C (176°F) at < 5%RH for 36h (baking) followed by
20-30°C (70-90°F) at > 74%RH for 48h (re-hydration)
High levels of pollutants may cause permanent damage to the internal sensor.
WARNING: Handle lithium batteries carefully, observe warnings on battery casing.
Internal Relative Humidity and Temperature Sensor Location
All dimensions in mm (inches)
Dispose of in accordance with local regulations.
103 (4.06)
Humidity, Temperature and Dewpoint USB Data Logger
www.lascarelectronics.com
EL-USB-2
Issue 5
02/2007
B.S.
No: 716 - Page 4 of 4
Applies to EL-USB-2