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InTemp CX405 RTD Dry Ice Logger Manual 

1-508-759-9500 (U.S. and International) 4 

www.onsetcomp.com 

1-800-LOGGERS (U.S. only) 

checks, connect to the logger and tap Perform (Morning, 
Afternoon, or Daily) Check every day.

 

Once logging begins, the logger will display the current 
temperature reading and the minimum and maximum readings 
within the current 24-hour period (midnight from one day to 
midnight the next day) if the logger was set to record logger 
checks (see 

Performing Logger Checks

). Otherwise the 

minimum 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 continue logging). These minimum 
and maximum values are also available in the logger reports 
(see 

Downloading the Loggers

). Click Next to switch between 

external probe and ambient temperature readings. Minimum 
and maximum readings are only available for the external 
probe. 

Logger Alarms 

You can set up an alarm to trip on the logger when the 
temperature reading falls above or below a specified value or 
when the logger battery is low. Specific alarm settings are set in 
the logger profile that you create in either InTempConnect or in 
the app. 

When a temperature alarm trips: 

 

The logger LED will blink every 5 seconds. 

 

The alarm icon will appear on the LCD and in the app. 

 

The logger will beep once every 15 seconds (unless 
audible alarms are disabled in the logger profile). 

 

An Alarm Tripped event is logged. 

When a low battery alarm trips: 

 

The battery icon on the LCD will flash. 

 

The logger will quickly beep three times every 15 
seconds. 

 

A Low Battery event is logged. 

To mute a beeping alarm, press the Mute button on the logger. 
Once muted, you cannot turn the beeping back on. Note that if 
a temperature alarm is occurring at the same time as a low 
battery alarm, pressing the mute button will silence both 
alarms. 

Download the logger to view details about a tripped alarm and 
to clear temperature alarm indicators in the app and on the 
LCD. Replace the batteries in the logger to clear a battery 
alarm. 

Note:

 Download the logger before replacing the 

batteries to ensure no data is lost.

 

Passkey Protection 

The logger is protected by an encrypted passkey automatically 
generated by the InTemp app for InTempConnect users and 
optionally available if you are using the InTemp app only. The 
passkey uses a proprietary encryption algorithm that changes 
with every connection. 

InTempConnect Users 

Only InTempConnect users belonging to the same 
InTempConnect account can connect to a logger once it is 
configured. When an InTempConnect user first configures a 
logger, it is locked with an encrypted passkey that is 
automatically generated by the InTemp app. After the logger is 

configured, only active users associated with that account will 
be able to connect to it. If a user belongs to a different account, 
that user will not be able to connect to the logger with the 
InTemp app, which will display an invalid passkey message. 
Administrators or users with the required privileges can also 
view the passkey from the device configuration page in 
InTempConnect and share them if needed. See 
www.intempconnect.com/help for more details. 

Note:

 This 

does not apply to InTempVerify. if the logger was configured 
with a logger profile in which InTempVerify was enabled, then 
anyone can download the logger with the InTempVerify app. 

InTemp App Only Users 

If you are using the InTemp app only (not logging in as an 
InTempConnect user), you can create an encrypted passkey for 
the logger that will be required if another phone or tablet 
attempts to connect to it. This is recommended to ensure that 
a deployed logger is not mistakenly stopped or purposely 
altered by others. 

To set a passkey: 

1.

 

Tap the Devices icon and connect to the logger. 

2.

 

Tap Set Logger Passkey. 

3.

 

Type a passkey up to 10 characters. 

4.

 

Tap Save. 

5.

 

Tap Disconnect. 

Only the phone or tablet used to set the passkey can then 
connect to the logger without entering a passkey; all other 
mobile devices will be required to enter the passkey. For 
example, if you set the passkey for the logger with your tablet 
and then try to connect to the device later with your phone, 
you will be required to enter the passkey on the phone but not 
with your tablet. Similarly, if others attempt to connect to the 
logger with different devices, then they would also be required 
to enter the passkey. To reset a passkey, simultaneously press 
both the top and bottom button on the logger for 5 seconds, or 
connect to the logger, tap Set Logger Passkey, and select Reset 
Passkey to Factory Default. 

Downloading the Logger 

You can download the logger to a phone or tablet and generate 
reports that include logged probe and ambient readings, 
events, user activity, alarm information, and more. Reports can 
be shared immediately upon download or accessed later in the 
InTemp app.  

InTempConnect users:

 Privileges are required to download, 

preview, and share reports in the InTemp app. Report data is 
automatically uploaded to InTempConnect when you download 
the logger. Log into InTempConnect to build custom reports 
(requires privileges). In addition, InTempConnect users can also 
download CX loggers automatically on a regular basis using the 
CX5000 Gateway. Or, if the logger was configured with a logger 
profile in which InTempVerify was enabled, then anyone can 
download the logger with the InTempVerify app. For details on 
the gateway and InTempVerify, see www.intempconnect/help. 

To download the logger with the InTemp app: 

1.

 

Tap the Devices icon and connect to the logger. 

2.

 

Tap Download. 

3.

 

Choose a download option: 

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