AUTOMATIC HEAT TRACING CONTROL PROCESS
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 8, 2010
app pub date -
Oct 2, 2008
filing date -
Oct 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for controlling a heat tracing circuit automatically determines power off time durations. The method calculates the off time duration based on the temperature of a process pipe measured at the end of an initial predetermined power off time interval together with a particular process pipe set point temperature as well as a dead band temperature that is greater than the set point temperature. The set point temperature is based on the process media, heating cable parameters and installation environment of the process pipe. The power off cycle time duration is limited to the time it takes the process pipe temperature to reach the set point temperature, thus limiting the number of on/off cycles of the heat tracing circuit and consequently the life of the circuit components.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully