WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 99 of 206
9.4 Variables
9.4.1 Trend Curve display
Located under Measured Value this directory presents, in a form of a graph, all the
measured values by the device's sensors.
SP: Process variable from the analog output block after
characterization, FLOP and reverse acting (SIGNAL_ACTION) in
POSITION_UNITS.
Working SP: Process variable from the analog output block after
characterization, FLOP and reverse acting (SIGNAL_ACTION) in
POSITION_UNITS
Feedback: The actual position of the final control element in units defined in
the POSITION_UNITS parameter.
Supply Pressure: Pressure of manifold output port A - It is located in the port A. Its
unit is defined in the PRESSURE_UNITS.
The accuracy over the span is ± 2% between 0 - 50ºC.
The offset has a variation of 3.5% for each 1ºC of variation.
If the unit is %, then 100% is the maximum pressure used in the
calibration.
Internal
Temperature:
Electronic board temperature in units as defined in the
INTERNAL_TEMP_UNIT parameter.
