Evt Pro - GE EVT-Pro 2.0 Operation And Technical Manual

SECTION 16

EVT PRO 2.0

As previously stated, the
cylinders to provide greater resolution of data points and accuracy.
illustrated in the software as shown in Figure 16.1 below.
A "rule of thumb" is to select the cylinder with the most green space showing. This
SECTION 17
INFLUENCE OF PROCESS PRESSURE UPON ACCURACY
During in situ testing, accuracy increases when the difference between process pressure and
PRV set pressure is minimal. However, technicians and plant personnel must realize that the
possibility of putting a PRV into full lift also increases when process pressure is close to PRV
set pressure.
Do not conduct in situ testing when the process pressure is less than 50% or greater
SECTION 18
EVT PRO 2.0
The transducers provided with the
are delivered with a certificate of
greater than 0.1% F.S.
requires the
calibration per instructions found under the
® Operations and Technical Manual (Rev 1.0 – 2016)
EVT PRO 2.0
® LOAD CELL UTILIZATION
EVT PRO 2.0
method will ensure the greatest data point resolution and accuracy.
Figure 16.1 – Example of Cylinder Utilization
than 90% of the PRV set pressure. See Warnings in Section 2, page 3.
® LOAD CELL ACCURACY
EVT PRO 2.0
To maintain this high level of accuracy, GE Energy/Consolidated®
®
be calibrated on an annual basis. They are to be returned for
EVT PRO 2.0
®
utilizes "married" load cells and hydraulic lifting
®
are calibrated in a dedicated test facility and
calibration. The accuracy of the force transducers is
®
Tab on GTC.Net.
EVT PRO 2.0
NOT FOR COPY OR DISTRIBUTION
This principle is
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