User manual FLUKE MOLBOX1 PLUS V 6.00

[. . . ] molbox1+TM/molbox1+S molbloc® Terminal (Ver. 6. 00 and Higher) Operation and Maintenance Manual © 1995 - 2010 Fluke Corporation, DH Instruments Division Warning High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. © 2010 Fluke Corporation, DH Instruments Division All rights reserved. [. . . ] To change the molbox1+ stability setting, select [SETUP], <2stab> (see Section 3. 5. 2). Note A/B operation is not recommended with 1E5 molblocs due to their low differential pressure range. OPERATION To activate A/B mode, press [SETUP], select <4A_B> and then select <2A/B>. molbox1+ returns to the MAIN run screen in A/B mode. Last flow measurement on currently active channel with flow unit. The ratio of the two most recent channel readings (A/B). The difference in percent between the two most recent channel readings. * 101. 305 sccm N2 A/B 0. 99803 D-01. 97% Though the optional MFC control functions are still active in A/B mode, the MFC run screens are not available. Note To return to single channel mode, use the A/B function to select either A or B molbloc. 3. 5. 5 <5MFC> PURPOSE To create, store and edit the MFC profiles used by the optional MFC control function (see Section 3. 4. 8). Note The MFC control function is an optional feature of molbox1+. If this option was not ordered with the molbox1+, the 1mfc function of the SETUP menu will not be active. PRINCIPLE MFC profiles are used by molbox1+ to configure the MFC function. MFC profiles define the analog signal range of the MFC and the relationship between the analog signal range and the flow range of the MFC. This information allows molbox1+ to operate with the correct signal for the current MFC and to convert the MFC analog signals to the corresponding flow or % FS values when desired. MFC profiles are set up using [SETUP], <5MFC>. MFC profiles are stored by molbox1+ under profile numbers. This profile number is used to select the MFC profile when the MFC function is activated using the MFC function key (see Section 3. 4. 8). Up to 26 MFC profiles can be defined and stored. MFC profiles are designed to allow the user to set up the profiles of the MFCs typically calibrated by or used with molbox1+ so that they can be conveniently recalled from a lookup table when needed. Page 91 © 1995 - 2010 Fluke Corporation, DH Instruments Division MOLBOX1+TM/MOLBOX1+S, MOLBLOC TERMINAL OPERATION AND MAINTENANCE MANUAL MFC profiles #1 and #2 are factory profiles and cannot be edited. Profile #1 sets the MFC control option to work in Volts with no flow range specified. Profile #2 sets the MFC control option to work in milliamps with no flow range specified. OPERATION To create or edit an MFC profile, press [SETUP], <5MFC>. The display is: Select the profile number to edit and press [ENTER]. Enter profile number #4 Note MFC profiles #1 and #2 are factory default profiles for working with the MFC function directly in analog units without specifying MFC flow range or units. Profile #1 is 0 to 5 V, profile #2 is 4 to 20 mA (see Sections 3. 4. 8, 3. 5. 5). The display is: Select the analog signal type of the MFC and press [ENTER]. [. . . ] Pressure expressed relative to atmospheric pressure. A DISPLAY function in which the current rate of change of the flow in flow units/second is displayed. Indication of when flow is stable within the stability limit and below the flow Reynolds number limit. A ratio of the inertia forces to the viscous forces in a flowing fluid. [. . . ]