User manual FLUKE MFC-CB

[. . . ] MFC-CBTM MFC Control Box Operation and Maintenance Manual ©2001~2007 DH Instruments, a Fluke Company MFC-CBTM Operation and Maintenance Manual © 2001~2007 DH Instruments, a Fluke Company All rights reserved. Information in this document is subject to change without notice. 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 DH Instruments, a Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA. DH Instruments strives to ensure the accuracy of its published materials; however, no warranty, expressed or implied, is provided. [. . . ] COM1 and COM2 Available Settings BAUD RATE PARITY DATA BITS STOP BITS 300, 600, 1 200, 2 400, 4 800, 9 600, 19 200 NONE, ODD or EVEN 7 or 8 1 or 2 The default COMx settings are 2400, E, 7, 1 for both COM ports. The MFC-CB appends a carriage return (<CR>) and a line feed (<LF>) to all messages that are sent out of the COM1 port to the host. It looks for a carriage return to terminate incoming messages and ignores line feeds. The user MUST wait for a reply to each message sent to the MFC-CB before sending another message to it (see Section 4). 3. 4. 5. 2 <3IEEE-488> The IEEE-488 port address can be defined from 1 to 31. The MFC-CB sends a line feed (<LF>) and asserts the EOI line at the end of all transmitted messages. It looks for a line feed and/or assertion of the EOI line to terminate incoming messages (see Section 4). 3. 4. 5. 3 <4RS232 SELF-TEST> The RS232 self-test is provided to check the MFC-CB COM ports and the interface cable independently of an external device or computer. If you are having difficulty communicating with MFC-CB from a host computer using RS232, the RS232 self test can help establish that the MFC-CB COM1 port you are trying to communicate with and the interface cable you are using are good. To run a self test of the RS232 ports (COM1 and COM2), press [SPECIAL], <5remote>, <4RS232test>. The display prompts you to connect COM1 to COM2 using a standard pin to pin DB-9 female to DB-9 male RS232 cable (see Section 4). Once the cable has been installed, press [ENTER] to run the self-test. The test is first executed in the COM1COM2 direction and then in the COM2COM1 direction. If the COM1COM2 test passes: proceeds to COM2COM1. <PASSED> displays briefly and the test ©2001~2007 DH Instruments, a Fluke Company Page 46 3. OPERATION If COM2COM1 passes: <PASSED> is displayed briefly followed by the conclusion, <The RS232 test has PASSED>. If a test fails: Execution is suspended until [ENTER] is pressed. The MFC-CB RS232 test can fail for three reasons: 1. The RS232 cable being used is incorrect (see Section 4. 2. 1 for information on the correct cable). COM1 and COM2 do NOT have the same serial communications settings and therefore cannot communicate together (see Section 3. 4. 5. 1 to set the COM ports). 3. The reason for failed communications is almost always a cable or incorrect RS232 interface settings. Be sure that these are correct before concluding that a COM port or MFC-CB communications are defective. 3. 4. 6 <6XBOX> PURPOSE To set up an optional MFC Switchbox for operation on one of the MFC-CB device channels. PRINCIPLE An optional MFC Switchbox is available. The MFC Switchbox is connected to one of the MFC-CB device channels (DEV1, DEV2) and allows that channel's set point and measurement to be switched between five channels on the Switchbox. [. . . ] A factor representing the relationship between the process gas and a surrogate gas for an MFC pr MFM. A value by which a setpoint or measurement is multiplied to change the slope of the set points or readings. Acronym for mass flow controller, a device that sets flows in response to electrical set points. An MFC-CB on-board file that defines the electrical and corresponding flow range in which a device channel should operate. [. . . ]