Omega Engineering OMB-DBK-34A, User Manual

Page: 163 / 250

DBK15
Universal Current, Voltage Input Card
Overview …… 1
Hardware Setup …… 2
Card Configuration …… 2
Card Connection …… 3
DaqBook/100 & /200 and DaqBoard [ISA-Type] Configuration …… 4
DaqBook/2000 Series and DaqBoard/2000 Series Configuration …… 4
Software Setup …… 5
DBK15 – Specifications ……5
DO NOT adjust the potentiometers! Evidence of adjustment voids the factory warranty!
Reference Notes :
o
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your
system, as needed.
o
In regard to calculating system power requirements, refer to DBK Basics located near
the front of this manual.
Overview
DBK15 uses a 16-channel multiplexer and a programmable gain input amplifier (PGA). Component
sockets accept resistors that configure each channel for current-to-voltage conversion or for voltage
attenuation. The differential signal input from the transducer must use 3 leads: high, low, and common.
When configured by appropriate resistors, the DBK15 can measure voltages up to 30 VDC or currents up
to 20 mA. Each of 16 input channels has a resistor “A” and “B” location. Installing various resistors in
these locations yields channel-to-channel flexibility. The DBK15’s input amplifier is software
programmable for ×1 or ×2 gain per channel, providing unipolar 0 to +10 V or bipolar -5 to +5 V ranges
per channel.
DBK Option Cards and Modules
889094
DBK15, pg. 1