Green double ash
Every 20 seconds: logger full, no alarm
Green single ash
Every 30 seconds: delayed start
Every 20 seconds: low battery, logging, no alarm
Every 10 seonds: logging, no alarm
Red/Green single ash
Every 20 seconds: logger full, last value equal to or
exceeds the low or high alarm
Red double ash
Every 10 seconds: logging, high alarm
Every 20 seconds: logging, high alarm, low battery
Red single ash
Every 10 seconds: logging, low alarm
Every 20 seconds: logging, low alarm, low battery
No LEDs ash
LEDs disabled during conguration to save battery
power and increase logging life /logger stopped /
battery empty
EL-USB-1-LCD, EL-USB-1-RCG, EL-USB-3,
EL-USB-4, EL-USB-TC & EL-USB-TC-LCD
Green double ash
Delayed start
Red double ash
High alarm
Orange double/single ash
Memory full
EL-USB-1 EL-USB-2, EL-USB-2+, EL-USB-2-LCD
EL-USB-2-LCD+
LED FLASHING MODES
SPECIFICATIONS
Green triple ash
Logger full, no alarm on the channel
Red triple ash
Logger full, alarm on the channel
Green double ash
Delayed start
Green single ash
Logging, no alarm
Red single ash
Logging, low alarm on the channel
Red double ash
Logging, high alarm on the channel
No LEDs ash
Logger stopped or battery empty
Dual Red Flash
Battery low
*Depending on logging rate, ambient temperature, and use of alarm LED
LCD INDICATORS (EL-USB-1-LCD, EL-USB-2-LCD, EL-USB-2-LCD+ AND EL-USB-TC-LCD ONLY)
Temperature
scale
Relative Humidity
symbol*
Minimum logged
value symbol
Maximum logged
value symbol
Reading
Negative symbol
Temperature scale symbols
Maximum/Minimum
logged value symbol
LCD INDICATION
Display Logger Status Explanation
Delayed Start
Push to Start
Logging
Stopped
This is shown when the logger is set to
start at a specic data and time*
This is shown when the logger is setup
for “Push to start” logging
This is shown when the logger is running
in “LCD off” mode, and the button is
pressed. The display clears again after
three seconds
If the logger has not been set to log and
the button is pressed, three dashes are
displayed for three seconds
* If the logger is set to “LCD off” or “LCD on for 30 seconds” mode, then this will only be shown after the
button is pressed. Otherwise the display will remain blank.
DISPLAY AND STATUS FUNCTIONS LCD INDICATION
EL-USB-1-LCD, EL-USB-2-LCD &
EL-USB-2-LCD+
EL-USB-TC-LCD
Part No Function Range Accuracy (overall error)
Typ. Max.
Readings Battery Battery Life*
EL-USB-1 Temperature -35 to +80°C (-31 to +176°F) ±1ºC (±2ºF) 16,382 3.6V ½AA 1 year
EL-USB-1-LCD Temperature with LCD -35 to +80°C (-31 to +176°F) ±0.5ºC (±1ºF)±1.5ºC (±3ºF)16,382 3.6V ½AA 1 year
EL-USB-1-PRO Extended Temperature -40 to +125°C (-40 to +257°F) ±0.2ºC (±0.4ºF) 32,510 3.6V ⅔AA 3 years
EL-USB-1-RCG Temperature with rechargeable
battery -20 to +60°C (-4 to +140°F) ±1ºC (±2ºF) 32,510 Lithium Ion 1 month
(rechargeable)
EL-USB-2 Temperature, Humidity & Dew Point
-35 to +80°C (-31 to +176°F)
0 to 100%RH
±0.5ºC (±1ºF)
±3%RH
±2ºC (±4ºF)
±5.0%RH
16,382
16,382
3.6V ½AA 1 year
EL-USB-2+ Increased Accuracy Temperature,
Humidity & Dew Point
-35 to +80°C (-31 to +176°F)
0 to 100%RH
±0.3ºC (±0.6ºF)
±2.0%RH
±1.5ºC (±3ºF)
±4.0%RH
16,382
16,382
3.6V ½AA 1 year
EL-USB-2-LCD Temperature, Humidity and Dew
Point with LCD
-35 to +80°C (-31 to +176°F)
0 to 100%RH
±0.5ºC (±1ºF)
±3.0%RH
±2ºC (±4ºF)
±5.0%RH
16,382
16,382
3.6V ½AA 1 year
EL-USB-2-LCD+ Increased Accuracy Temperature,
Humidity and Dew Point with LCD
-35 to +80°C (-31 to +176°F)
0 to 100%RH
±0.3ºC (±0.6ºF)
±2.0%RH
±1.5ºC (±3ºF)
±4.0%RH
16,382
16,382
3.6V ½AA 1 year
EL-USB-3 Voltage 0 to 30V d.c. ±1% 32,510 3.6V ½AA 1 year
EL-USB-4 Current Loop 4 to 20mA ±1% 32,510 3.6V ½AA 1 year
EL-USB-5 Counter, Event & State N/A ±3 secs/24 hrs 32,510 3.6V ½AA 1 year
EL-USB-CO Carbon Monoxide 0 to 1000ppm NOT A LIFE SAVING DEVICE ±6ppm 32,510 3.6V ½AA 3 months
EL-USB-CO300 Carbon Monoxide 0 to 300ppm NOT A LIFE SAVING DEVICE ±4ppm 32,510 3.6V ½AA 3 months
EL-USB-TC Thermocouple (J, K and T-type)
K-type probe included
-200 to +1350ºC (-328 to +2462ºF) (K-type)
-200 to +1190ºC (-328 to +2174ºF) (J-type)
-200 to +390ºC (-328 to +734ºF) (T-type)
±1ºC (±2ºF) ±2ºC (±4ºF) 32,510 3.6V ½AA 6 months
EL-USB-TC-LCD
Thermocouple with LCD
(J, K and T-type)
K-type probe included
-200 to +1350ºC (-328 to +2462ºF) (K-type)
-200 to +1190ºC (-328 to +2174ºF) (J-type)
-200 to +390ºC (-328 to +734ºF) (T-type)
±1ºC (±2ºF) ±2ºC (±4ºF) 32,510 3.6V ½AA 6 months
EL-USB-5
Green single ash
Every 10 seconds: normal logging
Green single ash
Every 20 seconds: low battery
Green double ash
Every 20 seconds: memory full
Red single ash
Event/State change/Count recorded
*EL-USB-2-LCD & EL-USB-2-LCD+ only
Green single ash
Logging, no alarm
Red single ash
Low alarm
Orange single ash every 60 sec
Low battery
No LEDs ash
Logger stopped or battery empty