Technical Specifications

Masoneilan Valves ValVue ESD Instruction Manual =| 205
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Extended Signature Diagnostics
NOTE To perform any of the diagnostic tests on the Diagnostics screen
ESDVue must be in Setup mode. See “Change Mode” on page 83
for more information.
The extended actuator signature slowly ramps the pressure to the actuator up and down over
a user selected position range and measures the position vs. pressure. The signature is useful
for determining valve friction and for identifying performance problems at specific valve
positions.
To perform the Extended Actuator Signature Diagnostic test:
1. Adjust the Start (%), End (%) and Speed (%/s) parameters, if necessary (Figure 205).
Figure 205 Adjusting Extended Diagnostics Parameters
The Start/End position parameters are the start and end ramp up/ramp down positions
expressed as a percentage of the total travel.
2. Enter the Start and End Positions for the SVI II ESD for running Extended Diagnostics.