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Biomedical Engineering and Equipment Service Co.
Inc. (BEESCO) offers a simple cost effective system
for continuous temperature monitoring of EMS
pharmaceuticals. The system employs Thermochron
temperature recording I-buttons. Each Thermochron
I-Button stores 1024 date and time stamped
temperature readings. Data is retrieved through a
standard personal computer serial connection. The
data can be imported directly into Excel or similar
software for analysis. The Thermochron I-Button can
be programmed to record temperatures at intervals
from 1 minute to 255 minutes. A sample interval of
20 minutes provides 28 days of temperature
monitoring. A one hour sample interval provides 90
days of monitoring. Thermochron I-Buttons s may be
reprogrammed for other missions and reused over and
over. They have a typical life of five years
Customers may purchase Thermochron I-Buttons;
software and the I-Button reader for use with there
own computer system or BEESCO can provide a
temperature monitoring service.
With our temperature monitoring service, the
customer is mailed a supply of Thermochron I-Buttons
preprogrammed for a sample rate specified by the
customer. When the Thermochron I-Button has filled
with temperature data the customer will mail them
back to BEESCO via a supplied prepaid mailer. The
data will be retrieved and then emailed back to the
customer. Replacement Thermochron I-Buttons will
then be sent to the customer for the next cycle of
temperature monitoring.
Below is an example of data extracted from a
Thermochron I-Button
Mission State
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Mission is in progress
Sample rate: 20 minute(s)
Roll-Over Enabled: no
Roll-Over Occured: n/a
Mission Start time: 02/18/2002 00:19
Mission Start delay: 0 minute(s)
Mission Samples: 2708
Device total samples: 43038
Temperatures displayed in: (Fahrenheit)
High Threshold: 86.0
Low Threshold: 50.0
Temperature threshold alarm state: Conditional(none)
Alarm(L)
Current Real-Time Clock from DS1921: Wednesday
03/27/2002 14:40:09
Current PC Time: Wednesday 03/27/2002 14:42:25
Log Data
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Format: [Time/Date , Temperature] (Fahrenheit)
02/18/2002 00:19 , 42.8
02/18/2002 00:39 , 42.8
02/18/2002 00:59 , 41.9
02/18/2002 01:19 , 41.0
02/18/2002 01:39 , 41.0
02/18/2002 01:59 , 40.1
02/18/2002 02:19 , 39.2
02/18/2002 02:39 , 39.2
02/18/2002 02:59 , 38.3
02/18/2002 03:19 , 38.3
02/18/2002 03:39 , 37.4
02/18/2002 03:59 , 37.4
02/18/2002 04:19 , 36.5
02/18/2002 04:39 , 36.5
02/18/2002 04:59 , 35.6
02/18/2002 05:19 , 35.6
02/18/2002 05:39 , 34.7
02/18/2002 05:59 , 34.7
02/18/2002 06:19 , 33.8
02/18/2002 06:39 , 33.8
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Thermochron
I-Button Temperature Monitoring Device
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Thermochron
I-Button inside a quick response vehicle
drug storage box
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Typical
Thermochron I-Button data recorded for 90
days at 1 hour intervals |
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Area between red lines is where the
ambulance was out of service and parked
outside unpowered for approximately two
weeks for a transmission replacement. All
temperature readings were made at 60-minute
intervals |
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