EL-USB-2

EL-USB-2 Datasheet


EL-USB-2

Part Datasheet
EL-USB-2 EL-USB-2 EL-USB-2 (pdf)
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EL-USB-2

Humidity, Temperature and Dew Point USB Data 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 starttime, and download the stored data by plugging the module straight into a PC's USB port and running the purpose designed software under Windows 98, 2000 or XP. 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.
• 0 to +100%RH Measurement Range
• -35 to +80°C -31 to +176°F Measurement Range
• Dew point indication via Windows Control Software
• USB Interface for Set-up and Data Download
%RH °F
• 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

WINDOWS CONTROL SOFTWARE

Easy to install and use, the control software runs under Windows 98, 2000 and XP Home and Professional Editions . It allows the user to set up and download any EL-USB-2. The latest version of the control software may be downloaded from

DATA LOGGER SET-UPS
• Logger Name
• °C, °F
• Logging Rate 10s, 1m, 5m, 30m, 1hr, 6hr, 12hr
• High and Low Alarms for Humidity and Temperature
• Start Date and Start Time
ORDERING INFORMATION

Standard Data Logger

Data Logger, Software on CD and Battery

Stock Number EL-USB-2

Replacement Battery

BAT 3V6

SPECIFICATIONS

Specification

Relative

Measurement range

Humidity

Repeatability short term

Accuracy overall error 20-80%RH

Response time

Long term stability

Temperature Measurement range

Repeatability

Accuracy overall error

Response time

Dew Point

Accuracy overall error 25°C, 40-100%RH

Logging rate

Operating temperature range
1/2AA 3.6V Lithium Battery Life*

Min. 0
-35 -31
every 10s -35 -31

Typ.
+1 +2 20
+2 +4 ***

Max. 100
+80 176 +5
every 12hr +80 176
* Depending on sample rate, ambient temperature and use of alarm LEDs ** 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. See page 4 of this datasheet for accuracy graphs.

Unit %RH %RH %RH sec %RH/Yr °C °F °C °F °C °F sec °C °F
°C °F Year

Martel Electronics Corporation PO Box 770 Londonderry, NH 03053 USA

Tel 800-821-0023 Email Web:

Copyright 2005 Martel Eectronics Corporation

All trademarks are the property of their respective owners.

EL-USB-2
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.

WARNING Handle lithium batteries carefully, observe warnings on battery casing. Dispose of in accordance with local regulations.

RECONDITIONING PROCEDURE

Exposure of the internal sensor to chemical vapors may interfere with the internal sensor and cause inaccurate readings to be logged. In a clean environment, this will slowly rectify itself. However, exposure to extreme conditions or chemical vapors 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.

MEASUREMENT ACCURACY

Martel Electronics Corporation

DT-EL-USB2
More datasheets: 06171.25MXP | 061702.5MXP | 0617.800MXP | 0617002.MXP | 0617010.MXP | 0617004.MXP | 06173.15MXP | 62525-101 | 62525-101LF | 62525-102


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived EL-USB-2 Datasheet file may be downloaded here without warranties.

Datasheet ID: EL-USB-2 647090