Fluke RPM4 manual 7.3 3RPT2X

3. OPERATION

Selecting <1on> activates the automated reading rate and returns to the MAIN RUN screen. Selecting <2off> turns OFF the automated reading rate and returns to the MAIN RUN screen.

The default RPM4 condition is auto read rate ON.

Auto read rate ON/OFF is NOT Q-RPT or range specific. Turning auto read rate ON or OFF in one range turns it ON or OFF for all RPM4 ranges.

3.5.7.3<3RPT2X>

PURPOSE

To enable and disable the RPM4 parallel measurement mode in which two Q-RPT modules are used to measure in parallel and their readings are averaged.

PRINCIPLE

RPM4s that have two Q-RPT modules of the same type (Axxx, Gxxx or BGxxx) support parallel measurement mode. In this mode, both Q-RPTs are used to measure the same pressure in parallel and their readings are averaged.

Parallel measurement mode sets up a third Q-RPT designated HL (combination of Hi and Lo). The HL RPT can be selected by the [RANGE] function and supports other RPM4 functions such as UNIT, MODE and DISPLAY.

When parallel measurement mode is set up, the resulting HL Q-RPT can be a third Q-RPT in addition to the Hi and Lo RPTs. It is also possible to make the HL Q-RPT the sole Q-RPT, suppressing the Hi and Lo Q-RPTs. This feature is used when an RPM4 will always be used in parallel measurement mode and the availability of the individual Hi and Lo Q-RPTs is not desired.

[SPECIAL], <7internal>, <3RPT2x> is used to set up or suppress parallel measurement mode in RPM4s that support it.

In parallel measurement mode, the maximum pressure is the maximum pressure of the Lo Q-RPT.

OPERATION

Parallel measurement mode is only available on RPM4s with two Q-RPTs of the same type (Axxx, Gxxx, BGxxx).

To access the parallel measurement mode enable/disable function press [SPECIAL], <7internal>, <3RPT2x>.

The cursor is on the number corresponding to the current setting.

Select <1off> to disable parallel measurement mode. This will eliminate the HL Q-RPT.

Select <2on> to enable parallel measurement mode. This creates the HL parallel mode Q-RPT. The Hi and Lo Q-RPTs are also still available.

Select <3on, w/ Hi & Lo RPT off> to enable parallel measurement mode and disable access to the Hi and Lo Q-RPTs individually. This creates the HL parallel mode Q-RPT and makes it the sole Q-RPT available for selection.

When using parallel measurement mode, if RPM4 detects an excessive difference between the pressure measured by the Hi and Lo Q-RPTs, a warning is given by rapid beeps for 8 seconds and displaying <Check RPT connection>.

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