LOG-IC® Frequently Asked Questions (FAQs)

What is the battery life of a logger?
Current loggers have a battery life of up to 3 years in recording and/or standby mode.

What is the shelf life of a logger?
5 years in off mode.

What type of battery is used in a logger?
A standard lithium manganese dioxide, non-rechargeable, non-lithium ion battery is used in our loggers.

What is the memory life of a logger?
4,000 logged data points; 53 histograms (each capable of storing 16 million temperature readings); 48 excursion records; min/max temperatures.

Are the loggers programmable?
Yes. The loggers can be sent to a customer with a pre-programmed configuration or sent to a customer ready for configuring by the customer.

What is the temperature measurement range and accuracy for a logger?
Temperature measurement range loggers is -30ºC to +75ºC with an accuracy of ±0.5°C.

What is the temperature monitor response time of the logger?
An industry-leading 30 seconds in a 10°C bracket and 240 seconds in a 40°C bracket.

How is data from a logger downloaded or retrieved?
Temperature data is downloaded using an NFC-enabled devices such as phones and tablets, a Desktop Reader (DTR), or a Handheld Reader (HHR). Loggers can be scanned through a shipping container (with no metal components). Data can be downloaded both with a reader and by plugging the logger directly into a USB port on a laptop or computer workstation.

How does an RFID Reader differ from an optical Sensor?
An optical sensor has two parts. One eye, located in a docking station, sees the other eye on the temperature device and, upon confirmation, gives the signal to then download the data. Log-ic 360™ devices do not have an optical sensor. The handheld and desktop readers allow data to be downloaded in less than one (1) second by positioning a temperature tag within 5" of a reader's bullseye.

Is a logger reusable?
Loggers can be ordered as Single-Use, Multi-Use, or extended 255-Use.

Are Log-ic 360™ products validated?
Yes. Information on Temperature Accuracy and Software Validation is available upon request. A Certificate of Validation is provided with each logger order. Loggers are calibrated to 3-Point National Institute of Standards and Technology (NIST) certification. Individual loggers can be calibrated when requested by customer.

How often do temperature loggers need to be calibrated?
Loggers are calibrated for the life of the battery in the logger. There is no need to send a logger back to American Thermal Instruments (ATI) for re-calibration unless your internal or regulated protocol requires it.

What is the difference between a Desktop Reader and a Handheld Reader?
A desktop reader (DTR) is connected to a PC and sits on a desk. The handheld reader (HHR) is mobile. Thousands of loggers can be scanned prior to connecting to a PC and synchronizing data to the Log-ic 360™ CertiScan® software.

What is a Use Count?
Use count refers to the number of on/off cycles that a logger has recorded. If you have ordered a multi-use logger, the use count is tracked and visible each time logger data is downloaded. In the following example, view the logger id # in the left column of the screen. The highlighted logger number is: 2000014271-UC11. UC represents use count. This logger is currently in its 11th use.

Does Log-ic 360™ use active or passive Radio Frequency ID (RFID)?
Log-ic 360™ loggers are semi-active. Below are some general guidelines:

  • Passive RFID: A logger gets power when in the Radio Frequency (RF) field of the reader. Therefore, the logger will only operate and communicate when in the influence of a reader. A temperature monitor needs to have the functionality to record even when not in the presence of a reader. Therefore, this is not a viable option for transporting of goods.
  • Semi-Active RFID: A logger needs the RF field of the reader to communicate but can also use a battery to operate without the influence of a reader. This allows a logger to continue to record temperature without the presence of a reader. The logger will only attempt communicating when influenced by the reader.
  • Active RFID: A logger can both communicate and operate without a reader. An active RF logger will continue to try to communicate even when not in the influence of a reader. This is not feasible for airline cargo for the same reason cell phones and computer Wi-Fi are not permitted when in flight.

Can Log-ic 360™ RFID loggers be integrated with other RFID programs?
Yes, ATI can provide an API to support this process.

What is the read range of Log-ic 360™ Readers?
Desktop Reader 2"; Handheld Reader 5".

Is there a way to extend the read range from logger to reader?
Yes, specialized antennae and boosters are available to increase read range up to 12". Consult with your representative for pricing information.

How do I know I turned the logger on/off?

  • Onboard the logger: When the status button is pressed there will either be a flashing green light or a steady green light in the Active Display window.
  • Flashing Green Light: The logger is in soaking, standby or off mode. If the on/off button was pressed to turn the logger on, wait until the programmed soaking period has expired to press the status button. If the on/off button is pressed during the soaking period, the soaking time will start again. Once soaking period has expired, the Active Display window will show a steady green light.
  • Steady Green Light: Log-ic 360™ logger is recording.
  • Viewing status through the CertiScan® software: Scan the Log-ic 360™ logger and view the Overview screen. In the Logger Mode Section it will display one of the following: "Recording," "Off," "Standby," or "Soaking."
  • Viewing status on the Handheld Reader: Scan the Log-ic 360™ logger and view the Display screen. In the Mode Section it will display one of the following: "Recording," "Off," "Standby," or "Soaking."

Can I download logger data through thick packing foam, bubble wrap or gel packs?
Yes, provided the reader is within 5" of the logger and there are no metal components.

Are Log-ic 360™ loggers waterproof?
Log-ic 360™ loggers are water-resistant.

If I ordered a multi-use logger, how do I track the number of uses?
View the left hand column in the software after downloading logger data. View the logger that you wish to track. After the logger ID number you will see the use count number. For example: If you see 2000014230-UC8 – this logger is on its 8th use (UC stands for use count).

If I ordered a multi-use logger, and I am on UC4 but have recorded for 3 years, what happens?
The battery life in a tag is 3 years. Once the logger records for 3 years, you must reorder a new logger. Therefore, a logger can be used for 3 years or the number of uses sold (whichever comes first.)

Can I configure/program a logger multiple times?
Yes, configuring a logger does not affect the use count. You may configure loggers an unlimited number of times. A logger must be in the off mode to re-configure.

Do loggers stop recording when data is downloaded?
No, temperature data can be downloaded multiple times and will continue to record until the logger is turned off. Even if the log fills, the logger will still monitor the histogram, excursions and the min/max temperatures.

What are temperature bins?
Temperature bins are depicted in CertiScan® graphs as colored blocks. Loggers record temperature every minute and place the temperature readings into a temperature bin. Temperature bins are preset and are not programmable. Loggers have the capability to store up to 16 million temperature readings in every temperature bin. Temperature bins do not store the same information as data points on a temperature curve graph. Log-ic 360™ is the only data logger that has this added feature.

What is the significance of a temperature bin?
Competitive data loggers typically only offer a temperature curve graph and are limited to 4,000 or 16,000 data points. A logging interval determines how often a data point is plotted on a temperature curve graph. If a logging interval is set to plot temperature every 60 minutes and an excursion occurs after one point is plotted, but before the next – the temperature bins will capture the excursion data where the temperature curve graph would not.

Do I have to have a reader to perform all functions with a logger?
If you order a Log-ic 360™ logger, a reader is not necessary to activate, download or program.

Can I name a logger?
Yes, using the User Data upload icon.

Can I overlay graphs from multiple loggers?
CertiScan® does not perform this task; however, raw data can be exported to an Excel/.csv file for a user to perform this function.

When a logger memory has reached 4,000 recorded data points, will the recording wrap around?
For insurance purposes, loggers do not support wrap-around memory usage. Once the logger has reached 4,000 recorded data points, it should be stopped and downloaded. However, as a safeguard, the tracker function takes over and will continue recording up to 48 excursions and the histogram will continue to populate.

Why can't I turn a logger on by pressing the button after I have turned it off?
To protect recorded data. Once a logger is turned off, a fail-safe is built in whereby the logger must be placed into a start mode prior to being able to turn it back on using the button. This ensures that the data from the previous recorded session is downloaded and able to be saved prior to being turned back on. Once a logger is turned back on, previously recorded information is erased and the logger's memory is rewritten. This also prevents someone from turning a logger on and off only when it is "convenient" to record temperature. This is also in place because loggers need a time reference which can only come from communication with a reader on the start command.

If I configure a logger does it use a use count?
No. Loggers can be configured as many times as the user chooses. The logger must be in the off mode in order to configure.

Can I read data from a logger in different languages?
Yes. There are 11 languages available: English, French, German, Simplified Chinese, Traditional Chinese, Spanish, Lithuanian, Swedish, Portuguese (Brazil), Tagalog (Philippine), and Korean.

Does Log-ic 360™ support Client-Server access?
Not at this time, however, this will be included in future software versions.

What is the RFID component of Log-ic 360™ products?
Log-ic 360™ loggers are data loggers with an RFID interface. Our loggers are semi-passive: "Semi" because they contain a battery, "passive" because they do not transmit RF. Our loggers reflect a signal to a Log-ic 360™ RFID reader only when within 2"-5" of a reader.

Do loggers operate with HF or UHF frequency?
Readers and loggers operate on a 13.56 MHz HF (high frequency) signal.

Why was HF used as opposed to UHF?
HF frequency was used for multiple reasons:

  • Download rate with HF is faster than with UHF (i.e., 0.5 seconds vs. 5 seconds).
  • Data from loggers is downloaded using a Log-ic 360™ CertiScan® proprietary reader or the dedicated Mobile App. This protects data from being downloaded with a generic reader and is an additional security precaution important to many companies using RFID products.
  • HF works better around metals and fluids comprised of water than UHF.
  • HF allows for less complicated readers which are less expensive.
  • UHF can have a large range, making it difficult to identify a specific logger when many loggers are simultaneously communicating with a reader (i.e., you don't know which logger is the logger in front of you).
  • HF allows for more cost-effective loggers that have more complex features.

Can you download/read logger data without a reader?
Log-ic 360™ USB Loggers are the only loggers that can be read without a reader. If you order a USB logger you will have dual download capabilities. Data can be downloaded via a reader or by directly plugging the logger into the USB port on a laptop or computer workstation, and using the Log-ic 360™ CertiScan® software.

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