GESTRA VKP 41plus Ex, Руководство по установке

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26
Measuring foreign noise (FN)
The ultrasonic test can be affected by foreign
noises. If the mean value of the measured noise
exceeds the preset noise limit, the message
"Foreign noise test" pops up on the display.
In this case proceed as follows:

Measure the sound intensity at various points
upstream and downstream of the test object.

Compare the measured sound intensity with the
mean value of test result.
If the measured sound intensity is below the mean
value, the test was not impaired by foreign noise.
 In this case select the item "Foreign noise NO"
in the menu.
For more information on the test results see table
Test Results in Chapter "Performing Tests".
 To save the test result in the data collector
touch the "Save"button.
 Observe the notes on the test results given in
the table.
If, however, the measured sound intensity is above
the mean value, the test was impaired by the
foreign noise.

In this case select the item "Foreign noise YES"
in the menu.
For more information on the test results see table
'Test Results' in Chapter "Performing Tests".

To save the test result in the data collector
touch the "Save"button.

Observe the notes on the test results given in
the table.
Performing a quick check
The menu item "Quick Check" allows you to
perform tests without first having to create a test
job on the computer. This is the best option for
newly mounted or modified traps.
You can repeat a quick check as often as
necessary. It makes sense to do this if you want to
detect and diagnose faults.
The test results of the quick check can also be
saved. In this case the test is automatically added
to the test job "9999".
 Open the TRAPtest program.

Touch the "Quick Check" button.
Buttons indicating the possible places of installation
"Steam tracers", "Steam line" and "Heat
exchanger" pop up.

Touch the button with the desired place of
installation.
Buttons indicating the different types of steam traps
pop up. The following trap types are available:

bimetallic

capsule with membrane regulator

ball float trap

inverted bucket trap

thermodynamic

Touch the button with the desired trap type.
The selection menu "Operating pressure" will be
shown.
 Touch the item indicating the desired operating
pressure.
 If you do not want to enter a saturated steam
temperature, touch the entry "Bar ((or PSI))???
(pressure unkown)".
The operating pressure will be saved. This pressure
will then be shown with the next quick check

Perform the test as described on page 19.

To save the test result touch the "Save" button.
The display shows the reference number. This
reference number helps allocating the test results
later in the PC program.

Write down the storage number.
You can use the quick check option to create a new
test object or a test object with modified features. If
you want to create a new test object in the PC
program you have to enter additional information. If
you data log important test information, it will be
easier to enter the test object afterwards into the
data base,