PROBLEM:
The OMB-DBK19 returns very erratic readings, however, the OMB-DAQBOOK or DAQBOARD are working properly with other DBK expansion boards.

SOLUTION:
Each DBK19 card comes with a floppy diskette containing a readme.txt file and another file xxxxxxx.cal, where xxxxxxx is the serial number of your card. This file contains the calibration constants for the DBK19. To set up the calibration file for any OMB-DBK19 cards, perform the following steps:

1. Locate the floppy disk containing the calibration constants file.

2. Configure the DBK19 according to the hardware configuration section of the manual.

3. Edit the calibration file, DAQBOOK.CAL, using a text editor such as NOTEPAD.EXE. This file will be located in the UTILS folder within the folder that you created when installing the Daqview Software. For example, the path for this file would be C:\DAQX\UTILS\DAQBOOK.CAL assuming that you installed the software in C:\DAQX. If you don't have a DAQBOOK.CAL file, the create one, and make it look like the example below, using the constants for your card.

4. Add the card number information within brackets. For example, if you have one DBK19 card, set the output jumper on the card for 0, then enter 0 within the brackets (see example below)

5. Add the calibration constants immediately after the card number (within the brackets). (These should be entered in the order given in the calibration file.)

6. Repeat steps 4 and 5 for each card.

7. Verify that no two cards are configured with the same card/channel number.

The following is an example of a DaqBook/DaqBoard calibration file configuring the main unit and two expansion cards connected to channels 3 and 5 of the main unit. The numbers under [EXP3] were found on the diskette that came with card 3, and the numbers under [EXP5] were found on the diskette that came with card 5.

[MAIN]
32760,32769
32801,32750
32740,32777
32810,32768

[EXP3]
32780,32779
32800,32756
32768,32780
32750,32742

[EXP5]
32752,32764
32783,32757
32749,32767
32777,32730

EXAMPLE 2: If you dont have a DAQBOOK.CAL file, use the following numbers for the [MAIN] section. Let's assume that you have one DBK19 with an address of 0. Keep in mind that you don't need to do this for cards such as DBK12, DBK13 or any card that does not come with calibration constants on diskette.

[MAIN]
32768,32768
32768,32768
32768,32768
32768,32768