User manual FLUKE MOLBOX1 PLUS V 6.00

[. . . ] 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. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Fluke Corporation, DH Instruments Division 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA. [. . . ] To set an adder and multiplier to adjust molbox1+ flow readings (see Section 3. 5. 3). Page 84 <3adj> © 1995 - 2010 Fluke Corporation, DH Instruments Division 3. OPERATION <4A_B> To set molbox1+ flow measurement modes that use the combination of two molblocs on channels A and B to measure flow (see Section 3. 5. 4). To create, store and edit the MFC profiles used by the optional MFC function (see Sections 3. 5. 5 and 3. 4. 8). To turn regulation mode of the optional MFC function ON and OFF and to set the regulation period for the regulation mode (see Section 3. 5. 6). To customize the flow unit choices available under [UNIT] (see Sections 3. 5. 7 and 3. 4. 3). To select/change the unit of measure in which molbox1+ displays pressure values (see Section 3. 5. 8). To select/change the unit of measure in which molbox1+ displays temperature values (see Section 3. 5. 9). <5MFC> <6reg> <7flowU> <8presU> <9tempU> OPERATION 1molbloc 2stab 3adj To access the SETUP menu, press [SETUP] from the MAIN run screen. The display is: 4A-B 5MFC 6mode 7flow 8presU 9tempU See Sections 3. 5. 1 to 3. 5. 9 for detailed information on each SETUP function. Note Some screens (e. g. , the SETUP menu) go beyond the two lines provided by the display. This is indicated by a flashing arrow in the second line of the display. Press the [] and [] keys to move the cursor to access the lines that are NOT visible or directly enter the number of the hidden menu choice if you know it. 3. 5. 1 <1molbloc> PURPOSE To initialize a molbloc when it is connected to molbox1+ and/or to identify the molbloc(s) currently connected to molbox1+. PRINCIPLE molbox1+ uses molbloc specific calibration information contained in the molbloc's EEPROM to determine whether it should operate in molbloc-L or molbloc-S mode and in its calculation of flow through the molbloc. For the molbox1+ to correctly calculate the flow through the molbloc, the molbox1+ must use information on the currently active molbloc. molbloc EEPROM information is read and stored by molbox1+ in the molbox1+ power up sequence when molbox1+ is turned on by selecting [SETUP], <1molbloc>. The <1molbloc> function should be used each time there is a change in the molbloc connected to a channel to assure that molbox1+ uses the correct molbloc information on subsequent measurements. The <1molbloc> function can also be used to display identifying information on the molblocs currently connected to the molbox1+ channels and to determine the gases with which the molbloc has been calibrated. OPERATION To access the molbloc function press [SETUP], and <1molbloc>. The function activates for both channels without additional prompts or entries. Page 85 © 1995 - 2010 Fluke Corporation, DH Instruments Division MOLBOX1+TM/MOLBOX1+S, MOLBLOC TERMINAL OPERATION AND MAINTENANCE MANUAL To view the gases with which the molbloc is calibrated, press [ENTER] in the molbloc identification screen to view the molbloc's gas list. After viewing, press [ESCAPE] to return to the current run screen. 3. 5. 1. 1 molbloc-L and molbloc-S Size and Range Designations Until mid-1999, molbloc-L elements (molbloc-S was not available at the time) were always identified by "Range". The molbloc-L "Range" is the molbloc's nominal full scale flow in Nitrogen (N2) at an operating pressure of 250 kPa. Actual molbloc ranges change with the molbloc pressure dependent calibration type and gas (see Section 1. 2. 5. 1. 2). Since mid-1999, in addition to nominal range, molbloc-L elements have been designated by size with a sizing code (see Table 31). On molbloc EEPROMs, the molbloc is still identified by its nominal range rather than by its size. [. . . ] The gas that will actually flow in the DUT when it is used in a process. Pressure expressed relative to vacuum. PA (Pressure Adder) Perfect Mass Flow Units PM (Pressure Multiplier) Pmax!Process Gas PRT Psia Page 173 © 1995 - 2010 Fluke Corporation, DH Instruments Division MOLBOX1+TM/MOLBOX1+S, MOLBLOC TERMINAL OPERATION AND MAINTENANCE MANUAL Psig Rate Ready/Not Ready Reynolds Number Pressure unit "pounds per square inch gauge". A DISPLAY function in which the current rate of change of the flow in flow units/second is displayed. [. . . ]