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InTemp CX400 Series Temperature Logger Manual 

1-508-759-9500 (U.S. and International) 6 

www.onsetcomp.com 

1-800-LOGGERS (U.S. only) 

2.

 

Under Record CX400 Logger Checks, select either Once 
Daily or Twice Daily. If you choose Twice Daily, a Perform 
Morning Check action will be listed in the Connected screen 
from 12:01 AM until 12:00 PM and then a Perform 
Afternoon Check action will be listed from 12:01 PM to 
12:00 AM. If you choose Once Daily, an action will be listed 
in the Connected screen to Perform Daily Check. Changes 
will take effect the next time the logger is configured. 

To enable the perform check feature if you are using 
InTempConnect, an administrator or user with the required 
privileges must create a new profile for a CX400 logger and set 
the Daily Checks to Once Daily or Twice Daily. For details on 
managing profiles, see www.intempconnect.com/help. 

To perform a check: 

1.

 

Tap the Devices icon and connect to the logger. 

2.

 

Tap Perform (Morning, Afternoon, or Daily) Check. 

Once a check is completed, it is recorded as a logged user 
action along with the user email and the location and is 
available for view in reports. The action is also listed as 
performed in the Connected screen and a checkmark will 
illuminate on the logger LCD. 

You can also set up a notification to display on your phone or 
tablet to remind you to perform a check. Use the Reminders 
option under Settings in the InTemp app. 

Minimum and Maximum Values 

The logger LCD displays the minimum and maximum 
temperature readings. If the setting to perform logger checks is 
enabled (see 

Performing Logger Checks

), then these values 

represent the minimum and maximum readings within the 
current 24-hour period and will reset every 24 hours for the 
entire logging period. If the logger check setting has not been 
enabled, then these values represent the entire logging period 
and will automatically reset when the logger is downloaded and 
restarted or stopped and reconfigured. 

You can also clear these values as needed while the logger is 
logging by pressing the Mute/Next button for 3 seconds until 
HOLD disappears on the LCD. Dashes (--) will then appear on the 
LCD for the minimum and maximum values until the next logging 
interval. The values will then continue to be updated for the 
remaining logging period or until they are cleared again. 

Note:

 

This clears the data on the screen only. Actual logger and 
reporting data will not be cleared with this reset. 

Logger Events 

The logger records the following events to track logger 
operation and status. These events are listed in reports 
downloaded from the logger. 

Event Name 

Definition 

Started 

The logger started logging. 

Stopped 

The logger stopped logging. 

Downloaded 

The logger was downloaded. 

Probe Disconnected/ 
Connected 

The external probe was disconnected or 
connected during logging (CX402 model 
only). 

Event Name 

Definition 

Probe Alarm 
Tripped/Cleared 

A probe temperature alarm has tripped or 
cleared because the reading was outside the 
alarm limits or back within range (CX402 
model only). 

Ambient Alarm 
Tripped/Cleared 

An ambient temperature alarm has tripped 
because the reading was outside the alarm 
limits or has cleared (CX403 model only). 

Low Battery 

An alarm has tripped because the battery 
has dropped to 15% remaining voltage. 

Performed/Missed 
Check 

The user performed or missed the daily, 
morning, or afternoon logger check. 

Safe Shutdown 

The battery level dropped below 1.85 V; the 
logger performs a safe shutdown. 

Deploying the Logger 

Follow these guidelines for deploying the logger: 

 

Use the four magnets on the back of the logger case to 
mount it to a magnetic surface. 

 

If using the CX402 logger for vaccine storage monitoring, 
the logger must remain outside of the refrigerator with 
the logger probe and glycol bottle placed inside the 
center of the refrigerator. 

 

If you remove the probe from the glycol bottle with a 
CX402 logger and then reinsert it, make sure you insert it 
through the center of the glycol bottle cap and push it 
down until the stainless-steel probe is completely in the 
bottle. The black heat shrink on the probe cable should 
be flush with the top of the cap as shown in the example. 

 

 

For CX402 loggers, use the included double-sided tape to 
affix the bottle holder to a surface if desired. 

Protecting the Logger 

The logger is designed for indoor use and can be permanently 
damaged by corrosion if it gets wet. Protect it from 
condensation. If the logger gets wet, remove the battery 
immediately and dry the circuit board. 

Note:

 

Static electricity may cause the logger to stop logging.

 

The logger has been tested to 8 KV but avoid electrostatic 
discharge by grounding yourself to protect the logger. For more 
information, search for “static discharge” on onsetcomp.com. 

Battery Information 

The logger requires two user-replaceable AAA 1.5 V alkaline or 
optional lithium batteries for operation at the extreme ends of 
the logger operating range. Expected battery life varies based 
on the ambient temperature where the logger is deployed, the 

Black heat shrink flush 
with bottle cap 

Summary of Contents for InTemp CX402-T205

Page 1: ...o 212 F Resolution 0 024 C at 25 C 0 04 F at 77 F Drift 0 1 C 0 18 F per year NIST Calibration CX40x Txx and CX402 BxM Single point NIST calibration probe and logger body CX40x VFCxxx Single point NIS...

Page 2: ...or 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 t...

Page 3: ...oftware where you can monitor CX400 series logger configurations and view downloaded data online Using the InTemp app you can configure the logger with your phone or tablet and then download reports w...

Page 4: ...nimum and maximum readings represent the entire logging period and only reset when the logger is downloaded and restarted or stopped and reconfigured they will not reset if you download the logger and...

Page 5: ...empConnect when you download the logger Log in to InTempConnect to build custom reports requires privileges In addition InTempConnect users can also download CX loggers automatically on a regular basi...

Page 6: ...h this reset Logger Events The logger records the following events to track logger operation and status These events are listed in reports downloaded from the logger Event Name Definition Started The...

Page 7: ...ts in extremely cold or hot temperatures or a logging interval faster than 1 minute can impact battery life Estimates are not guaranteed due to uncertainties in initial battery conditions and operatin...

Page 8: ...o radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception wh...

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