InTemp CX400 Series Temperature Logger Manual
1-508-759-9500 (U.S. and International) 2
www.onsetcomp.com
1-800-LOGGERS (U.S. only)
Specifications (continued)
Battery Life
1 year, typical with logging interval of 1 minute. Faster logging intervals,
remaining connected with the InTemp app, excessive report generation,
numerous audible alarms, and paging all impact battery life.
Memory
128 KB (84,650 measurements, maximum)
Full Memory Download
Time
Approximately 60 seconds; may take longer the farther the device is
from the logger
LCD
LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or
go blank in temperatures outside this range
Dimensions
9.4 x 4.5 x 2.59 cm (3.7 x 1.77 x 1.02 inches)
Weight
90.2 g (3.18 oz)
Environmental Rating
IP54
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
See last page
Passed RTCA DO160G, part 21H
Logger Components and Operation
Start Button:
Press this button for 1 second to start the logger
when it is configured to start “on button push.”
Mute or Next Button:
Press this button for 1 second to mute a
beeping alarm (see
Logger Alarms
). For CX402 loggers, press
this button for 1 second to switch between the external probe
and ambient internal sensor temperature readings. Press and
hold this button for 3 seconds to clear the minimum and
maximum values (see
Minimum and Maximum Values
). Press
and hold this button and the Start button for 5 seconds to reset
a passkey (InTemp app users only; see
Passkey Protections
).
Magnets:
There are four magnets on the back of the logger (not
shown in diagram) for mounting.
Temperature Sensor:
This internal sensor measures ambient
temperature.
External Temperature Probe:
This is the probe that is plugged
into the logger for measuring temperature (CX402 models
only).
Audible Alarm Speaker:
This is the speaker for the audible
alarm that beeps when an alarm is tripped, or the external
probe is removed (if applicable).
Alarm LED:
This LED blinks every 5 seconds when an alarm is
tripped, or the external probe is removed (if applicable). See
Logger Alarms
.
LCD
: This screen shows the latest temperature reading and
other status information. The LCD screen refreshes at the same
rate as the logging interval. The example shows all symbols
illuminated on the LCD screen followed by a table with
descriptions of each symbol.
LCD Symbol
Description
An alarm has tripped because the temperature
reading is outside the specified range. See
Logger
Alarms
.
The logger has been configured to perform daily or
twice daily checks (twice daily is shown in this
example), but no checks have been performed yet.
The once daily or twice daily logger check (twice in
this example) has been performed.
This indicates how much memory has been used
for the current configuration. In this example,
approximately 40 percent of the memory has been
used.
This shows the approximate battery power
remaining.
The logger is currently logging.
The logger is currently connected to a phone or
tablet via Bluetooth. The more bars there are, the
stronger the signal.
The logger is waiting to be started. Press and hold
the Start button for 3 seconds to start the logger.
This is an example of a temperature reading from
an external probe.
This is an example of a temperature reading from
the internal sensor.
External
temperature
probe (CX402
models only)
LCD
Alarm LED
Start button
Audible alarm
speaker
One of four
magnets (on
back of logger)
Temperature
sensor (behind
rectangular
plug)
Mute or Next
button
