Omega Products OMB-DAQTEMP14A User Manual

Extended Warranty

Program

SM

OMB-DAQTEMP14A

High-Accuracy PCI
Thermocouple/Multifunction
Data Acquisition System

OMB-DAQTEMP14A, shown smaller than
actual size, with screw terminal/signal
conditioning pod included.

OMB-DAQTEMP14A hardware
consists of a plug-n-play PCI board,
a 0.9 m (3') cable, and a screw
terminal/signal conditioning pod.
Cold-junction compensation is
built in to the OMB-DAQTEMP14A,
allowing for highly accurate
thermocouple measurements,
with channel-to-channel variation
and noise typically less than

0.2°C, and absolute accuracy
typically better than 1.0°C. This
is accomplished by having a

 Includes a PCI Plug-n-Play

Card, Screw-Terminal/
Signal Conditioning Pod,
Cable, and Extensive
Software Support

 14 Thermocouple

Input Channels

 Supports Thermocouple

 100% Digital Calibration
 DaqView Software

for Effortless Setup,
Acquisition, and Real­Time Data Viewing

 Drivers for DASYLab,

LabVIEW, Visual Basic,
C++

Types J, K, S, T, B, E, N, R

 7 Differential

Voltage Inputs, with
13 Programmable
Ranges from ±156 mV
to ±10 V Input

 200K Readings per

Second—No Averaging
Required

 24 Digital I/O lines
 4 Frequency/Pulse

Counting Input Channels

 4-Channel, 16-Bit/100 kHz

Analog Outputs

The OMB-DAQTEMP14A data
acquisition card provides a total
hardware/software/signal
conditioning solution for high­accuracy, high-speed temperature,
voltage, frequency, and pulse
counting measurements, plus digital
I/O and analog output.

A diversified software package is
included with the OMB-DAQTEMP14A,
including DaqView software, plus
drivers for DASYLab, LabView,
and Windows-based languages
including Visual Basic and C++.

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separate low-noise, bandwidth­limited amplifier per thermocouple
channel. The OMB-DAQTEMP14A
has 14 thermocouple input
channels. All power for the
OMB-DAQTEMP14A is derived
from the PC, so there is no need
for external power supplies
or transformers.

In addition to thermocouple inputs,
the OMB-DAQTEMP14A features
7 differential voltage input channels,
with 16-bit resolution and
programmable full scale input
ranges from ±156 mV to ±10 V.
The 4 frequency input channels can
measure frequency or count pulses
up to 10 MHz. Two timer output
channels can generate square
outputs up to 1 MHz.

Twenty-four digital I/O lines are also
included, which can be programmed
in 8-bit groups as either inputs or
outputs.

* In order to provide maximum temperature
stability, the thermocouple channels have
a 4 Hz filter.

OMB-DAQTEMP14A, shown

smaller than actual size, with

screw terminal/signal

conditioning pod included.

The 16-bit/100 kHz analog
outputs can be used to
generate waveforms, with a
virtually infinite waveform
output length possible from
PC memory.

All inputs and outputs are
accessible via convenient
screw terminals located on
the signal conditioning pod. The
user can easily remove the cover of
the signal conditioning pod to gain
access to the screw terminals for
signal connections.

DAQVIEW SOFTWARE

The included DaqView software
allows the user to verify signal
connections, acquire and save data
to disk, and graphically view real­time data within moments of
installing the system. Easily set up
all hardware, acquisition, and
display parameters, without
programming, via a simple,
spreadsheet-style screen. DaqView
is a full-featured acquisition and
display application that provides all
the functionality needed for many
data logging applications.

OMB-DAQVIEW-XLPLUS

DaqViewXL is an optional Excel
add-in that provides complete data
acquisition functionality. Seamlessly
integrated into Excel’s tool palette,
DaqViewXL has the same
comprehensive acquisition and
display capabilities as DaqView.
Excel is an ideal tool for test
engineers because it provides a
variety of graph and charting
functions for presenting data in a
graphical format, as well as
mathematical and analysis functions
such as FFTs. Excel’s ability to
retrieve and manipulate previously
acquired data in a spreadsheet
format and DaqViewXL’s advanced
data acquisition functions form a
comprehensive data acquisition
solution.

Specifications

GENERAL
Supply Voltage Range: 4.75

to 5.25 Vdc (from PCI bus)

Power Consumption: 5.5 W
Operating Temperature:

0 to 60°C (32 to 140°F)

Storage Temperature:

-40 to 80°C (-40 to 176°F)

Relative Humidity:

0 to 95%, non-condensing

Vibration: MIL STD 810E
PCI Board Dimensions:

165 W x 15 D x 108 mm H
(6.5 x 0.6 x 4.2")

Signal Conditioning/Screw
Terminal Pod Dimensions:

86 W x 240 D x 42 mm H
(3.4 x 9.44 x 1.65")

A/D SPECIFICATIONS
Type: Successive approximation
Resolution: 16-bit
Conversion Time: 5 µs
Maximum Sample Rate: 200 kHz
Non-Linearity (Integral): ±1 LSB
Non-Linearity (Differential):

No missing codes

VOLTAGE INPUTS
Channels: 7 differential inputs,

programmable on a per-channel
basis for unipolar or bipolar

Ranges: Software or sequencer
selectable on a per-channel basis;

0 to 10 V, 0 to 5 V, 0 to 2.5 V,
0 to 1.25 V, 0 to 0.625 V,
0 to 0.3125 V, ±10 V, ±5 V,
±2.5 V, ±1.25 V, ±0.625 V,
±0.3125 V, ±0.156 V

Daqview Software (Included)

Voltage Accuracy: One year,
0 to 35°C (32 to 95°F)(exclusive of
noise). For full scale input ranges
from 2.5 to 10 V, accuracy is

0.015% of reading + 0.005% of
range. For full scale input ranges
from 312 mV to 1.25 V, accuracy is

0.015% of reading + 0.008% of
range. For full scale input of 156
mV, accuracy is 0.02% of
reading + 0.008% of range.

Bandwidth: 500 kHz
Settling Time: 5 μs to 1 LSB

for full scale step

Temperature Coefficient:

±(10 ppm + 0.3 LSB)/°C
Input Impedance: 20 MΩ
(differential)
Bias Current: <1 nA@ 0 to 35°C
(32 to 95°F)
Common-Mode Rejection: 86 dB,
DC to 60 Hz for gains ≤8; >100 dB
for gains ≥16

Maximum Input Voltage:

±11 V relative to analog common

Overvoltage Protection: ±35V
Crosstalk: 100 dB, DC to 60 Hz;

86 dB @ 10 kHz

D1

ANALOG INPUT AND

MULTIFUNCTION CARDS

T/C Voltage Frequency Pulse Analog

Inputs Inputs Output Outputs I/O Digital

OMB-DAQTEMP14A 14 74 2424

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