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RPM4™ OPERATION AND MAINTENANCE MANUAL

3.5.4.2 <2FULL TIME ON/OFF>

 OPERATION

See Section 3.2.7 for complete information on RPM4’s SDS (Self Defense

System) feature.

Turning SDS “full time OFF” for a Q-RPT module eliminates normal SDS

operation so that the Q-RPT module TEST(+) port remains open. However,

the SDS overpressure function (see Section 3.4.4.1) remains active.

To turn SDS full time ON or OFF for a Q-RPT module, press [SPECIAL],

<4SDS>, <2full time on/off >. If the RPM4 has two Q-RPTs and both have SDS,

the Q-RPT must then be selected. The next display is:

The cursor is on the current state of SDS for the

designated Q-RPT. Select <1on> to set SDS for

normal operation and return to the main run

screen. Select <2off> to open SDS permanently

so operation is as if SDS were not installed.

[ESC] to return without making changes.

SDS full time: Hi

1on 2off

If <2off> is selected and SDS for the Q-RPT is not already open, the SDS opening

screen with indication of the maximum pressure of the Q-RPT is displayed. This is

the same screen used when opening SDS using the [SDS] key (see Section

3.3.8). Check that the pressure applied to the Q-RPT module TEST(+) port does

not exceed the Pmax! value before confirming that SDS should be opened.

Opening SDS with a pressure greater than Pmax! applied to the test port

may cause overpressure damage to the Q-RPT.

3.5.5 <5PREFS>

 PURPOSE

To access a menu of RPM4 operational preferences and functions.

 OPERATION

To access the PREFS menu press [SPECIAL],

<5prefs>. The display is:

1ScrSvr 2sound 3time

4ID 5level

The PREFS menu includes:

<1ScrSvr> View and change the screen saver activation time (see Section 3.5.5.1).

<2sound> View and change the keypress sounds (see Section 3.5.5.2).

<3time> View and edit the internal time and date settings (see Section 3.5.5.3).

<4ID> View the RPM4 serial number (SN) and view or edit the ID number

(see Section 3.5.5.4).

<4level> View and set user security level and/or password (see Section 3.5.5.5).

DH Instruments RPM4 User Manual

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