West Control Solutions MRC 7000 Profiler Manual - Manual (Page 81)

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Appendix F
Profile Development Sheet
The Profile Development Worksheet is intended to assist the Profile Recorder Controller
customers. By filling in the worksheet with the application requirements, profile information
can easily be obtained for entry into the instrument. The worksheet is a convenient record of
the profile for future use.
A profile is a programmed sequence of setpoint changes over a period of time (Ramp) and
setpoint maintained at a single point for a period of time (Soak). A sequence of a ramp and a
soak is referred to as a Segment. A profile can contain from 1 to 6 segments. The instrument
can store in memory up to 8 profiles.
The profile controllers can provide timed output relay action while running a profile, this is
called an Event. Events may be selected as on or off as needed during each Ramp and Soak
segment of the profile.
The first step to completing the worksheet is to determine the range of the setpoints neces-
sary for the application. Fill out the setpoint scale along the left side of the worksheet. For dual
pen profile controller be sure to scale the setpoint range for the greater range. Remember that
the profile ramp will start at the process value indicated when the profile is initiated.
The next step is to sketch the profile outline on the worksheet. Use the setpoint scale to
determine the setpoint levels. Draw each profile separately on a dual pen instrument. Be sure
to fill in the time periods for each part of the segment in the boxes provided at the top of each
column. The Ramp and Soak time boxes are located at the top of each column below the
setpoint boxes for the segment. There are boxes at the bottom of each column to indicate the
status of events, if used. If more than six segments are needed for the profile then individual
profiles can be linked to preform sequentially. Linked profiles operate like one long profile.
Profile program information is easily determined by completing the Profile Developmental
Worksheet for the application. The information derived within the worksheet is directly related
to the profile entry parameters of the profile controller.