Lascar Electronics 的 EL-USB-1 规格书

EL-USB-1
Temperature Data Logger
www.lascarelectronics.com/data-loggers
Issue 16 02/2017 Page 1 of 2
This standalone data logger measures and stores more than 16,000 temperature readings over a -35 to +80°C (-31 to +176°F) range
with a resolution of 0.5°C (1°F).
The user can easily set up the logger and view downloaded data by plugging the data logger into a PC’s USB port and using the free
EasyLog software. Data can then be graphed, printed and exported to other applications for detailed analysis.
The data logger is supplied with a lithium metal battery which gives three year’s logging life. The logger is protected against ingress
from water and dust to IP67 standard when the cap is fitted.
• -35 to +80°C (-31 to +176°F) measurement range
• Stores over 16,000 readings
• EasyLog software available as a free download
• Logging rates between 10 seconds and 12 hours
• Immediate and delayed logging start
• User-programmable alarm thresholds
• Status indication via red/green and amber LEDs
• Environmental protection to IP67
EL-WIN-USB
Lascar’s EasyLog control software is available as a free download from www.easylogusb.com. Easy to install and use, the control
software is compatible with 32-bit and 64-bit versions of Windows 7, 8 and 10. The software is used to set up the logger, download,
graph and annotate data or export in Excel, PDF and jpeg formats.
The software allows the following parameters to be configured:
• Logger name
• Measurement parameter (°C or °F)
• Logging rate (user selectable between 10 seconds and 12 hours)
• High and low alarms
• Immediate and delayed logging start
Download the latest version of the software free of charge from www.lascarelectronics.com/software/easylog-usb
SPECIFICATIONS
Measurement range -35 to +80°C (-31 to +176°F)
Internal resolution 0.5°C (1°F)
Accuracy (overall error) +/- 0.5°C typical (see graph on page 2)
Logging rate User selectable between 10 seconds & 12 hours
Operating temperature range -35 to +80°C (-31 to +176°F)
Battery Life 3 years (at 25°C and 1 minute logging rate)
Readings 16,382
Dimensions 99 x 25 x 23mm (3.89 x 0.98 x 0.90”)
CALIBRATION CERTIFICATES NOW AVAILABLE
Lascar now offers a Traceable Calibration Certificate Service on Temperature Data Loggers. Using reference equipment
which has been calibrated by a UKAS/NIST accredited laboratory and using apparatus traceable to national or
international standards. For more information, please see www.lascarelectronics.com.
ACCESSORIES
BAT 3V6 1/2AA Replacement
battery
EL-USB-CASE Protective metal
case
EL-DataPad Handheld data
logger programmer
& collector
INCLUDED IN THE BOX
BAT 3V6 1/2AA Battery
EL-USB WALL BRACKET Mounting Bracket
\ 0‘ 0‘ o‘ 0‘ Q 0‘ \ \- o o‘ o; ® EasyLoga @ “SCAR e‘edronics
EL-USB-1
Temperature Data Logger
www.lascarelectronics.com/data-loggers
Issue 16 02/2017 Page 2 of 2
LED STATUS INDICATION
The EL-USB-1 features two LEDs: a green/
red LED to indicate logging and alarm
status, and an amber LED to indicate a
possible problem.
In normal operation the green LED will
flash, but will change to red if an alarm
condition has been triggered. Using
EL-WIN-USB it is possible to set the alarm
to remain active even if the reading has
returned to normal, in which case the
alarm LED will continue to flash red.
This ‘Hold’ feature in the software
ensures the user is notified that at some
point an alarm level has been exceeded,
without needing to download the data.
BATTERY INFORMATION
Replacement
We recommend that you replace the battery annually, or prior to logging critical data. Only use 3.6V ½AA lithium metal batteries.
The data logger does not lose its stored readings when the battery is discharged or replaced; however, the data logging process will
stop and will not resume until the battery is replaced and the logger restarted by EL-WIN-USB or an EL-DataPad.
Before replacing the battery, remove the data logger from the PC. Please note that leaving the data logger plugged into the USB
port for extended periods will cause some of the battery capacity to be lost.
Passivation
If left unused for extended periods of time lithium metal batteries, including those used in the EasyLog range of data loggers,
naturally form a non-conductive internal layer preventing them from self-discharge and effectively increasing their shelf life. When
first installed in the data logger, this may cause a momentary drop in the battery voltage (the Transient Minimum Voltage) as
the internal layer is broken down, resulting in the data logger resetting. Inserting the batteries in the data logger and leaving it
connected to a PC for about 30 seconds will remove this layer. After this, remove and re-install the batteries to reset the data
logger. Overall battery life will not be affected.
WARNING
Handle lithium metal batteries carefully, observe warnings on battery casing. Dispose of in accordance with local regulations.
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
Green and Amber single flash
The data logger is full and has stopped logging. No alarm
Red single flash
The data logger is currently logging. Low alarm
Red and Amber single flash
The data logger is full and has stopped logging. Low alarm
Red double flash
The data logger is currently logging. High alarm
Red and Amber double flash
The data logger is full and has stopped logging. High alarm
Amber single flash
The battery is running low. Data logging will continue until the battery voltage
drops below 2.8V
No LEDs flash
The data logger is stopped, the battery is empty or there is no battery
MEASUREMENT ACCURACY
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
-40 -200 20 40 60 80
± 0.0
± 0.5
± 1.0
± 1.5
-350 50 80
Temperature (°C)
Accuracy (°C)
± 0
± 2
± 4
± 6
± 8
± 10
0102030405060708090100
Relative Humidity (%RH)
RH (%RH)
Maximal RH-accuracy at 25°C per sensor type
± 0.0
± 0.5
± 1.0
± 1.5
± 2.0
± 2.5
± 3.0
-40-20 020406080
Temperature (°C)
T (°C)
Maximal T-accuracy per sensor type
EL-USB-2-LCD
EL-USB-2+ EL-USB-2-LCD+