kak111
Advanced Member level 4
Thermochron iButton
General Description
The DS1921G Thermochron® iButton® is a rugged, selfsufficient
system that measures temperature and records
the result in a protected memory section. The recording
is done at a user-defined rate, both as a direct storage of
temperature values as well as in the form of a histogram.
Up to 2048 temperature values taken at equidistant intervals
ranging from 1 to 255min can be stored. The histogram
provides 63 data bins with a resolution of 2.0°C.
If the temperature leaves a user-programmable range,
the DS1921G also records when this happened, for how
long the temperature stayed outside the permitted range,
and if the temperature was too high or too low. An additional
512 bytes of read/write nonvolatile (NV) memory
allows storing information pertaining to the object to
which the DS1921G is associated. Data is transferred
serially through the 1-Wire® protocol, which requires only
a single data lead and a ground return. Every DS1921G
is factory lasered with a guaranteed unique, electrically
readable, 64-bit registration number that allows for absolute
traceability. The durable stainless steel package is
highly resistant to environmental hazards such as dirt,
moisture, and shock. Accessories permit the DS1921G
to be mounted on almost any object including containers,
pallets, and bags.
**broken link removed**
OneWireViewer and iButton® Quick Start Guide
**broken link removed**
OneWireViewer User's Guide, Version 1.4
**broken link removed**
General Description
The DS1921G Thermochron® iButton® is a rugged, selfsufficient
system that measures temperature and records
the result in a protected memory section. The recording
is done at a user-defined rate, both as a direct storage of
temperature values as well as in the form of a histogram.
Up to 2048 temperature values taken at equidistant intervals
ranging from 1 to 255min can be stored. The histogram
provides 63 data bins with a resolution of 2.0°C.
If the temperature leaves a user-programmable range,
the DS1921G also records when this happened, for how
long the temperature stayed outside the permitted range,
and if the temperature was too high or too low. An additional
512 bytes of read/write nonvolatile (NV) memory
allows storing information pertaining to the object to
which the DS1921G is associated. Data is transferred
serially through the 1-Wire® protocol, which requires only
a single data lead and a ground return. Every DS1921G
is factory lasered with a guaranteed unique, electrically
readable, 64-bit registration number that allows for absolute
traceability. The durable stainless steel package is
highly resistant to environmental hazards such as dirt,
moisture, and shock. Accessories permit the DS1921G
to be mounted on almost any object including containers,
pallets, and bags.
**broken link removed**
OneWireViewer and iButton® Quick Start Guide
**broken link removed**
OneWireViewer User's Guide, Version 1.4
**broken link removed**
