Measurement Computing DBK19 - Manual (Page 3)

Card Configuration
Assign a LogBook or Daq device channel number to the DBK19 card. Up to 16 DBK19s
can connect to a LogBook or a Daq device. (Optional DBK10 expansion card enclosure
may be used.) Since this is a daisy-chain interface, each card must have a unique channel
address.
To configure the card, locate the 16×2-pin header (labeled JP1) near the front of the
board. The 16 jumper locations on this header are labeled CH0 through CH15. Place the
jumper on the channel you wish to use. Only one jumper is used on a single card; each
card in the system must have a unique jumper setting.
DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration
Use of the DBK19 requires setting jumpers in DaqBooks/100 Series & /200 Series
devices
and DaqBoards [ISA type].
1. If not using auxiliary power, set the JP1 jumper for Analog Option Card Use,
also referred to as the expanded analog mode.
Note: The JP1 default position (above) is necessary to power the
interface circuitry of the DBK19 via the internal ±15
VDC power supply. If using auxiliary power (e.g., a
DBK32A or DBK33) you must remove both JP1 jumpers.
Refer to Power Requirements in the DBK Basics section
and to the DBK32A or DBK33 sections as applicable.
2. For DaqBook/100, DaqBook /112, and DaqBook /120 only,
place the JP4 jumper in the single-ended mode.
Note: Analog expansion cards convert all input signals to single-ended voltages referenced to analog
common.
DaqBook/2000 Series and DaqBoard/2000 Series Configuration
No jumper configurations are required for these /2000 series devices.
Software Setup
Reference Notes:
o DaqView users - Refer to chapter 3, DBK Setup in DaqView.
o LogView users - Refer to chapter 4, DBK Setup in LogView.
o DBK19 Calibration Disk – Each DBK19 card is shipped with a calibration disk with constants
used to correct gain and offset errors inherent in the hardware. This calibration is done
automatically by DaqView and LogView. Refer to the readme.txt file on the disk.
o Refer to the Signal Management chapter for information regarding Two-Point Calibration of a
Temperature Measurement System.
DaqView Users: When a DBK19 is used with a /2000 Series Device, the Internal Clock Speed should
be set to 100 kHz as described in chapter 3, DBK Setup in DaqView.
The DBK19 selection allows the user to define the thermocouple types by using the Type column of the
analog input spreadsheet.
Each DBK19 card is shipped with a calibration disk with constants used to correct gain and offset errors
inherent in the hardware. This gain and offset calibration is done automatically by DaqView and
LogView.
See the DBK19 readme.txt file on the disk shipped with the board for details on creating this file.
DBK Option Cards and Modules 879795 DBK19, pg. 3