Direct Function Keys; Table 8. Summary Of Molbox Rfm Direct Function Key Operations - Fluke MOLBOX RFM Operation And Maintenance Manual

3.4

DIRECT FUNCTION KEYS

3.4.1 [K]
PURPOSE
To cause the flow value calculated by molbox RFM to be multiplied by a factor, K. Generally
used to apply a test device's gas correction factor used when a test device is calibrated with
a gas other than its normal process gas.
PRINCIPLE
Frequently, when testing or calibrating a flow-measuring device, it is not possible to flow the gas
with which that device will normally be operated (the process gas). This may be because the

Table 8. Summary of molbox RFM Direct Function Key Operations

DIRECT FUNCTION KEYS ARE ACTIVE FROM THE MAIN RUN SCREEN
SEE CORRESPONDING MANUAL SECTIONS FOR FULL DETAIL
Menu of commonly used setup features including unit changes and stability setting.
Menu of less frequently used internal functions and settings including preferences, resets,
molbox calibration, remote interfaces, BPR (back pressure ratio) when using molbloc-S.
Turn automatic microrange ON/OFF.
Load the molbloc that is currently connected to molbox RFM. Use this to activate a new
molbloc after a molbloc change or to view details on the molbloc that is currently in use.
Set the resolution with which the measured flow and other values are displayed.
Run the TARE, LEAK CHECK, PURGE, AutoZ and BPR functions.
Display the current pressure measurements (first press).
Display the current molbloc temperature measurements (second press).
Define the DISPLAY function for the second line of the molbox RFM display. Choices include
nd
rate, average, hi/lo, totalize, 2
Set/change a DUT gas correction factor (K factor).
Set flow measurement gas.
Set flow measurement unit. Choice of units can be customized.
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unit, deviation, freeze, clean.
© 1998-2007 DH Instruments, a Fluke Company
3. OPERATION