Measurement Computing DBK65 - Manual

DBK65
8-Channel Transducer Interface Module
The DBK65 is campatible with: WaveBook, ZonicBook, LogBook, DaqBook, DaqLab, DaqScan, and DaqBoard/2000 Series devices.
Overview …… 1
DBK65 Power Requirements …… 2
Power Available for Transducers …… 2
DBK65 Voltage Regulation ...... 2
Selecting an Excitation Voltage …… 3
Customizing a Voltage …… 4
Creating a 4 to 20mA Current Loop …… 5
Source Impedance and Settling Time ….. 6
Configuring the DBK65 Address …… 7
Configuring the Primary Data Acquisition Device …… 8
Connecting the DBK65 to Signals and to the Primary Data Acquisition Device …… 9
Software Setup …… 10
Calibrating a Transducer using the “Shunt Calibration” Technique …… 11
DBK65 Specifications …… 12
Overview
The DBK65 is an 8 channel transducer
interface module. Transducers of 2, 3, 4,
and 6 wire type can be easily connected
to the device by means of removable
screw terminal blocks, 1 per channel.
The module is ideally suited for
transducer outputs of the following
types. Wiring schematics are provided
on page 2 of this DBK65 section.
DBK65
• 4 to 20 mA
• 3-wire string pots
• 4-wire bridge based transducers
•
6-wire bridge based transducers
DBK65 Block Diagram
Note 1: The user can install a resistor for use with the programmable regulator. The programmable voltage source can be
within the range of 5 to 20 VDC.
Note 2: The user can install a 250 Ω resistor across the positive and negative signal lines (+Signal and -Signal) for
4 to 20 mA transducer outputs.
DBK Option Cards and Modules 987693 DBK65 pg. 1