Fluke RPM4 manual 8 8CAL, 7.5 5LOG,  Operation See Sections 5.2

3. OPERATION

in which it determines there could be a risk of overpressure to the Q-RPT by opening the TEST(-)vent valve, the message <Cannot open lo vent, DP overpressure risk> is displayed. If this message is displayed, return to normal operation, vent the RPM4 Q-RPT module and try again.

Select <3close> to cause the TEST(-)vent valve to close and remain closed regardless of RPM4 operation until the setting is changed.

Select <4view> to view the current condition of the TEST(-)valve. The display indicates whether current valve operation is controlled by the RPM4 (<Auto TEST(-) vent>) or has been set manually (<Manual TEST(-) vent>) followed by the current valve status (<Open> or <Close>).

If the RPM4 is being used as an external device to a PPC3 pressure controller (see Section 3.5.7.4), the Lo Vent setting may be changed from the PPC3 (see the PPC3 Operation and Maintenance Manual).

3.5.7.5<5LOG>

PURPOSE

To view and/or clear the RPM4 event log.

PRINCIPLE

RPM4 records to a log each time one of the following events occurs:

•Pmax! of an internal RPM4 Q-RPT or utility sensor is exceeded (see Section 3.4.4.1).

•A memory fault occurs.

OPERATION

To view the event log press [SPECIAL], <9Log>.

Use [] and [] to move back and forth between older and newer log entries.

Each log entry has two screens, one with the event description and one with the even time and date. Use [] and [] to toggle between the two screens. The oldest logged event appears.

After the last log has been viewed, the option to clear the log, <1no>, <2yes> is presented. Use <2yes> to remove all entries from the log. Use <1no> to continue without altering the log.

To leave the log, use [ESC].

3.5.8 <8CAL>

PURPOSE

To calibrate the RPM4 Hi and Lo Q-RPTs and adjust the on-board barometer. These functions are considered part of RPM4 maintenance and are covered in the maintenance section of this manual (see Sections 5.2, 5.3).

PRINCIPLE

See Sections 5.2, 5.3.

OPERATION See Sections 5.2, 5.3.

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