4. BASIC USER INTERFACE
Page 83
© 2009 DH Instruments, a Fluke Company
Edit the leak check time if desired (minimum 1, maximum 999) then
.
again when ready to start the leak test. The leak test display is:
1.
Standard Main Run Screen first line showing measured
pressure.
2.
Active RPT position indicator
3. Indication that leak test is running and countdown of time
remaining.
957.84 kPa a HI
Leak testing 13 s
can be used to abort the running leak test.
while the leak test is running restarts the
leak check timer. When the leak check timer countdown has completed, the leak check
results screen is displayed:
1.
Total pressure change from start to finish of leak check time.
2. Indicator of RPT used to run leak check.
3.
Average rate of change of pressure over the leak check
time period.
∆P 0.61 kPa a HI
Rate 0.06 kPa/s
From the leak check results screen,
to repeat the leak test.
to return to leak check Main Menu and exit to the Main Run Screen.
To view the results of the most recently completed leak check, press
<View>
. If NO leak
check data is stored (i.e., if the PPC4 has never run a leak test or a reset has cleared
previous leak test results), the results screen displays
<Data not available>
briefly and
returns to Main Run Screen.
or
to return to the Main Run Screen.
4.5.12 <RPT>
PURPOSE
Search for, initialize and display internal and external Q-RPTs available to the PPC4 system
(see Section 3.2.5).
Caution
•
Before operating PPC4 with external Q-RPTs, check carefully that the
Q-RPT TEST(+) port is connected to the PPC4 TEST(+) port. If the
external Q-RPT is NOT connected to the PPC4 TEST(+) port, it will not
measure the pressure generated by PPC4 and PPC4 may reach a
pressure higher than the target pressure before its watchdog function
recognizes that the external RPT is not connected.
•
RPM4 with Q-RPT full scale spans below 14 MPa have SDS self defense
system to isolate and protect the Q-RPTs. If an external RPM4 SDS
pressure rating is less than the PPC4 maximum pressure then a
warning will be displayed on the PPC4 front panel when the RPM4 is
detected. In addition, AutoRanged ranges greater than the SDS rating
are not allowed (see Sections 3.2.5, 6.5.4, 3.2.8). In order to create
AutoRanged ranges or generate pressures above the SDS pressure
rating the RPM4 must be disconnected or the RPM4 SDS must be
upgraded to a higher pressure rating. Upgrades may be done at the DH
Instruments service center (see Table 36).
Summary of Contents for PPC4
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Page 194: ...PPC4 OPERATION AND MAINTENANCE MANUAL 2009 DH Instruments a Fluke Company Page 182 Notes...
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