User manual DHI MFC CONTROL BOX

[. . . ] Operation and Maintenance Manual MFC Control Box MFC-CBTM © 2011 Fluke Calibration © 2011 Fluke Calibration 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 Calibration, 4765 East Beautiful Lane, Phoenix, Arizona 85044-5318 USA. Fluke Calibration makes sincere efforts to ensure the accuracy and quality of its published materials; however, no warranty, expressed or implied, is provided. Fluke Calibration disclaims any responsibility or liability for any direct or indirect damages resulting from the use of the information in this manual or products described in it. [. . . ] Password: pppppp 0 disables password If 0 is entered as the password value, then the password is made inactive and a password will NOT be required to access the user level menu. This is the factory default with a security level of <2low>. Caution Once a password has been entered, the user level cannot be changed without reentering the password. RFM SN nnn-xx Password: pppppp The user must enter the user defined password or the factory secondary password to proceed. When a password is entered correctly, operation proceeds to the <1change user level 2edit password> screen. The first field, <nnnn>, is the serial number of the MFC-CB, followed by a second field, <xx>, that counts the number of times that a secondary password has been used. The factory secondary password is available in case the user's password has been misplaced or forgotten. It can be obtained by contacting a Fluke Calibration Authorized Service Provider. The factory secondary password is different for all MFC-CB's and changes each time it is used. Page 33 © 2011 Fluke Calibration MFC-CBTM OPERATION AND MAINTENANCE MANUAL 3. 4. 3 <3prefs> PURPOSE To access a menu of MFC-CB internal operational preferences and functions. These include: · · · · ScrSvr (see Section 3. 4. 3. 1): View and change the SCREEN SAVER function. sounds (see Section 3. 4. 3. 2): View and change valid and invalid keypad entry sound settings. time (see Section 3. 4. 3. 3): ID (see Section 3. 4. 3. 4): View and edit the internal time and date settings. View and edit the MFC-CB user ID. OPERATION To access the PREFS menu press [SPECIAL], <5prefs>. The display is: 1ScrSvr 2sound 3time 4ID See PRINCIPLE above and Sections 3. 4. 3. 1 to 3. 4. 3. 4 for additional information on each PREFS function. 3. 4. 3. 1 PURPOSE <1ScrSVR> To adjust the activation time of MFC-CB's SCREEN SAVER function. PRINCIPLE MFC-CB has a SCREEN SAVER function which causes the display to dim after a front panel key is not pressed for a certain amount of time. The time can be adjusted by the user or screen saving can be completely eliminated. OPERATION To access the SCREEN SAVER function, press [SPECIAL], <5prefs>, <1ScrSav>. Edit the time, in minutes, after which the screen saver will activate to dim the screen. Set zero to eliminate the SCREEN SAVER function. Note Setting screen saver time to zero eliminates the SCREEN SAVER function so that the display is permanently at full brightness. The display may also be completely suppressed using the SOFT [ON/OFF] key (see Section 3. 1. 2. 3). 3. 4. 3. 2 PURPOSE <2Sound> To adjust or suppress the MFC-CB keypad key press sounds. PRINCIPLE MFC-CB provides audible feedback by a brief "beep" when a valid key press is made. Invalid key presses are indicated by a descending two tone "blurp". The audio frequency of the valid key press beep may be selected from three choices or all keypress sounds may be suppressed. [. . . ] A DISPLAY function in which the ratio of the measurement on the inactive device channel and the active device channel is displayed (inactive/ active). A DISPLAY function in which the sum of the measurement on device channel 1 and device channel 2 is displayed. A gas whose behavior, from the standpoint of a device under test, is similar to the process gas for which the device is to be characterized and used. A surrogate gas is often used in calibration and testing when the process gas cannot be used for safety or cost reasons. [. . . ]