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Heatwatch
TR-1
The HeatWatch TR-1 is a new concept in temperature and spoilage
monitoring. The TR-1 is based on the Dallas Semiconductor Thermachron iButton ®
temperature recorder. The TR-1 tracks and calculates spoilage based upon a user-defined
profile. The user can program the TR-1 to create an electronic simulation of the goods
being monitored. With the TR-1 behaving and reacting like the product, the user can access
the unit and poll the TR-1 database to determine the condition and remaining shelf life.
These critical factors are determined by the history of the storage environment and the
specif-ic spoilage characteristics of the good.
TR-1 Features
- Operational temperature: -10°C to +85°C (14°F to +185°F)
- Accuracy: +/- 1°C -10°C to +70°C (14°F to +158°F)
- Clock Accuracy: +/- 2 minutes per month (0°C to 45°C, 32°F to 113°F)
- Programmable mission start time
- Mission sample rate: 1 to 255 minutes
- Memory size: 2048 samples
- Histogram resolution: 2°C
- Meets UL#913 - Intrinsically safe apparatus
- Hermetically sealed stainless steel case
- High and low alarms
- Future Storage Temperature vs. Shelf Life Calculator
- FDA approved mounting adhesive in clip configuration (pending)
- Expected service life: 10 years @ 25°C (77°F)
- Software is compatible with Windows 95, Windows 98, and Windows NT
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Available
Configurations
The TR-1 is available in three basic con-figurations; label,
clip, and standalone.
| The label configuration is normally for application of the
TR-1 to packages. The label is clearly visible to everyone handling the package. This
style emphasizes that the goods are being monitored and encour-ages attention and special
care. |
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A clip configuration is suggested where size is a
consideration. The clip provides a 1" diameter footprint for placement in confined
areas. |
| The standalone configuration provides the smallest form
factor. Standalone devices can easily be “thrown in” with bulk shipments. Data
collected by the HeatWatch TR-1 Thermicron iButton can be extracted and read on a PC
running TR-1 software when the serial interface cable is used. |
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Software
The TR-1 utilizes a patent pending software package for
pro-gramming and data retrieval. TR-1 software is very user friendly and utilizes a
minimal number of screens to provide the required functionality. The primary screens are
Settings, Database, and Spoilage Profile.
HeatWatch Label, Interface Cable, and Thermicron iButton
The Settings screen is used to program the
HeatWatch TR-1 unit and launch a record-ing mission. Specific information such as the
spoilage profile to be referenced, the sample rate, alarm set points, mission name, and
the quantity of TR-1 devices to be used are selected and programmed from this screen.
The Spoilage Profile screen is used to construct
the specific pro-file that will be referenced. Up to 40 data points can be entered to
describe the time/temperature relationship for the product. The user may also select and
construct a “High Quality” profile based on the minimal spoilage profile but
providing leeway for quality.
The Summary screen details the mission name,
spoilage profile used, start time, stop time, high and low alarm times, as well as a graph
of the remaining Shelf Life. This screen also includes a future storage temperature
calculator that details how long a product may be stored at a given temperature based upon
shelf life already depleted.
A Database screen displays previously downloaded missions.
When a specific mission is accessed various graphs can bereviewed that depict different
aspects of that mission. Examples of such graphs are:
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Temperature Graph Shows the mission
temperature history as a function of time. |
| Spoilage Graph Shows the original shelf life and
high quality shelf life as well as the current remaining shelf life and high quality shelf
life. |
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Histogram Graph Shows the distribu-tion of all
samples taken during a mission. Can be used to quickly ascertain the mean mission
tempera-tures as well as general deviations. Temperature Graph Shows the mission
temperature history as a function of time. HeatWatch Label, HeatWatch Interface Cable and
Thermicron iButton |
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