4.4 Function 4: - Tightness/Let By Test
Remember:-
It was the
Function Key
that got you here!!!
This function is designed to step you through each stage of the Let-By/Timed
Tightness Test allowing you to Pass/Fail at the end of each stage and record the
results either to memory for future use or directly to the optional IR (A740) printer.
1. Connect up pressure tubing & zero, if necessary
by pressing the
Down Arrow Key
2. Apply required amount of pressure
3. Press
Enter Key
to start the Test
4. The Initial Pressure will be stored at P1 and P2
will become the “Live” pressure.
5. The 717R will countdown from 60 seconds
6. Once the countdown is finished the 717R will
display P1, P2 and Differential (P2-P1) and give
you the option to “Pass” or “Fail” depending on
whether the readings are within the allowable
tolerance or not.
7.
Choosing “Fail” by pressing the
Down
Arrow Key
will stop the test and allow you to, if
required, store/save (see section 5) or print (see
section 7) the readings so far.
8.
Choosing “Pass” by pressing the
Up
Arrow Key
will take you to the next part of the
test
– Stabilisation
Summary of Contents for 717R
Page 1: ...TPI 717R Combustion Flue Gas Analyser ...
Page 31: ......
