Lascar EL-USB-2 luftfugtighed, temperatur og dugpunkt logger

Lascar Electronics
EL-USB-2
  • Beskrivelse
  • Mere information
  • 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
  • Dimensions: 1.06" x 3.7" (27mm x 94mm)

Lascar Humidity, Temperature and Dewpoint Logger with USB Interface.

Humidity, temperature and dew point logger plugs straight into a PC's USB port.
Software is included with each logger

This data logger measures and stores up to 16,382 relative humidity and 16,382 temperature readings over 0 to 100%RH and -35 to +80°C (-31 to +176°F) measurement ranges. The user can easily set up the logging rate and start time, and download the stored data by plugging the module straight into a PCs USB port and running the purpose designed software under Windows XP (SP2 or later), Vista, Windows 7, 8 and 10 (32- and 64-bit).

Relative humidity, temperature and dew point (the temperature at which water vapor present in the air begins to condense) data can then be graphed, printed and exported to other applications. The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for a year. Status indication is via flashing red and green LEDs. The logger is protected against ingress from water and dust to IP67 standard when the plastic cap and seal are fitted.

Documents available for download:
 EL-USB-2 datasheet (177k)

Specification
Humidity range 0 to 100%RH
Humidity repeatability(short term) ±0.2%RH
Humidity accuracy (overall error)
(20-80%RH)
±3.5%RH*
Humidity response time 5 seconds
Humidity long term stability 1%RH/Yr
Temperature measurement range -35 to 80°C(-31 to 176°F)
Temperature repeatability ±0.2°C(±0.4°F)
Temperature accuracy(overall error) Typical: ±1°C(±2°F)
Max: ±2.5°C(±5°F)
Temperature response time 20 seconds
Dew Point accuracy(overall error)
(25°C, 40-100%RH)
±2°C(±4°F)**
Logging rate Once every 10 seconds to once every 12 hours
Logger operating range -35 to 80°C(-31 to 176°F)
Battery 1/2AA 3.6V Lithium Battery, 1 year typical life ***

* 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 relative humidity measurements between 40 and 100%RH at 25°C
*** Depending on sample rate, ambient temperature and use of alarm LEDs