GE MN-ValVue-v2-8-IOM Manual de Serviço Página 146

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ValVue Digital Communications Software Ver. 2.80
146
GE Oil & Gas
Extended Actuator Signature (Extended Act. Sig.)
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 this test:
1. Select Extended Act. Sig.
2. Adjust the Start Position, Stop Position and Speed Level parameters, if necessary.
3. Click Perform Diag.
Figure 128 Performing Extended Actuator Signature Diagnostic Test
Figure 129 appears.
Figure 129 Extended Actuator Signature Test Complete
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