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

• Manufacturer Part Number: EL-USB-CO
• Description: Data Logger, Carbon Monoxide Measurement
• Manufacturer: Lascar Electronics
• Type: Loggerr

Specifications of EL-USB-CO

• Accuracy: ±6 % of Reading
• Pressure, Operating: 900 to 1100 mbar
• Range, Measurement: 0 to 1000 ppm CO
• Repeatability: ±2 % of Reading
• Resolution: 0.5 ppm CO
• Response Time: 1 Minute (to Reach 90%)
• Sample Rate: Every 10 Second to Every 5 Minutes
• Temperature, Operating: –10(14) to 40 (104) °C (°F)

EL-USB-CO
SPECIFICATIONS
Specifications liable to change without prior warning
* with battery supplied, 10 minute logging rate, 25°C ambient temperature, audible warning disabled, reading <10 ppm CO
- Green single flash,
- Green single flash,
- Red single flash,
- Green single flash,
- Green double flash,
- Red/Green single flash,
- No LEDs flash
Specification
Measurement range
Internal resolution
Accuracy (error)
Repeatability
Decay of reading over time
Response time (to reach 90%)
Logging rate
Operating temperature range (15-90 %RH, non-condensing)
Operating pressure range
1/2AA 3.6V Lithium Battery Life*
LED FLASHING MODES
AUDIBLE WARNING
EL-USB-CO features a red and a green LED.
The LEDs on an EL-USB-CO will flash in one of the following ways, assuming latching of the warning threshold has
been turned off in the EL-WIN-USB control software.
By default latching is disabled. The red LED will not flash after the logged voltage has returned to normal. Instead, the green LED
will flash.
Latching can be turned on via the control software. The red LED will then continue to flash, even after the logged CO value has
returned to normal. The red LED will effectively have latched into its warning condition. This feature ensures that the user is
notified that the warning threshold has been exceeded, without the need to download the data from the logger.
The audible warning will sound once per second when the warning threshold has been exceeded. To disable the warning,
remove the cap from the front of the data logger.
The audible warning will sound once every 60 seconds when there is a low battery condition. This indicates that the battery
must be replaced.
every 30 seconds
every 10 seconds
every 10 seconds
every 20 seconds
every 20 seconds
every 20 seconds,
alarm latching turned on
Logger primed and ready to start.
Logging in progress, last stored value OK
Logging in progress, the last stored reading is equal to or
(If latching is turned on, then a stored value is equal to or exceeds the warning threshold)
(will flash once every second when audible warning is enabled)
Low battery, logging in progress, the last stored value OK
Logger is full, last stored value OK
Logger is full, last stored value is equal to or exceeds the warning threshold
(will flash once every second when audible warning is enabled)
Battery inserted, but no logging exercise started
Battery dead.
or
Carbon Monoxide (CO) Data Logger with USB Interface
www.lascarelectronics.com
EL-USB-CO
every 10s
-10 (14)
Min.
900
0
Issue 3
Typ.
0.5
+
+
1
6
2
05/2006
exceeds
every 12hr
+40 (104)
Max.
1000
1100
5
3
the warning threshold
M.C.
Applies to EL-USB-CO/2
% of reading / year
% of reading
% of reading
ppm CO
ppm CO
minute
month
°C (°F)
Unit
mbar
-
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