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* The OMB-DAQ-54 does not have frequency, digital I/O or expansion capabilty.
The OMB-DAQ-54, OMB-DAQ-55 and OMB-DAQ-56
Personal Daqs are full-featured
data acquisition products that utilize
the Universal Serial Bus (USB),
which is built into almost every
new PC. Designed for high
accuracy and resolution, the 22-bit
OMB-DAQ-54/55/56 data acquisition
systems directly measure multiple
channels of voltage, thermocouple,
pulse, frequency, and digital I/O (the OMB-DAQ-54 does not have digital, frequency I/O). A
single cable to the PC provides
high-speed communication and
power to the OMB-DAQ-54/55/56. No
additional batteries or power
supplies are required, except when
using bus-powered hubs.
The OMB-DAQ-54/55/56 modules are
the first products in a new family of
low-cost, USB-based products from
OMEGA. Because of the strict
power limitations of the USB, the
modules incorporate special powermanagement
circuitry to ensure
adherence to USB specifications.
The OMB-DAQ-54/55/56 avoid many
of the limitations of PC-Card
(PCMCIA) data acquisition devices
and offer advantages over many
PC plug-in data acquisition boards
as well.
The OMB-DAQ-54 data
acquisition system offers 10 single-ended
or 5 differential analog (up
to ±20 V full scale) or thermocouple input channels with 16 programmable
ranges and 500 V optical isolation.
The OMB-DAQ-55 offers 10 single-ended
or 5 differential analog (up
to ±20 V full scale) or thermocouple
input channels,16 programmable
ranges, 500 V optical isolation, 8
digital I/O lines, and 2 frequency/
pulse/ duty-cycle channels.
The OMB-DAQ-56 offers twice the
I/O capacity as the OMB-DAQ-55 in
the same size package.
To simplify attachment of signals and
transducers, the OMB-DAQ-54/55/56
modules feature convenient,
removable screw-terminal input
connections.
SOFTWARE
Personal DaqViewTM a graphical
data acquisition software, is an easy-to-use yet powerful
application is provided with the OMB-DAQ-54, OMB-DAQ-55
and OMB-DAQ-56 at no additional charge.
The software allows users to configure a test, and display or
record data within minutes, without programming.
Personal DaqView lets the user
| • |
Select one of any OMB-DAQ devices connected to the system |
| • |
Set up, configure and display analog, frequency, counter
and digital I/O channels in real time |
| • |
Easily and quickly configure acquisition parameters such
as trigger events, stop events and acquisition scan rates |
| • |
View real-time analog, frequency, and digital I/O using
extensive charting and metering displays |
| • |
Acquire analog, frequency, and digital I/O channels to
disk in real time |
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AView acquisition status at a glance, including triggered
time/date, acquisition progress, as well as acquisition
destination file |
Real-Time Displays
Personal DaqView allows the creation of
real-time displays using built-in
display options, including digital, dial
meter, bar graph, and strip chart displays.
No programming is required — simply
point, click, and drag desired display
options to create a visual display screen.
The OMB-DAQ-54/55/56 are also
shipped with PostView, a postacquisition
application that permits
you to display acquired data
previously saved to a file. Drivers
for Visual Basic, Delphi and C++
for Windows 98/2000/XP/VISTA, are also
included. In addition, drivers are
available for icon-based software
packages, such as DASYLab and
LabVIEW.
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Personal DaqView PlusTM
The optional Personal DaqView Plus software
provides advanced charting capabilities, including
multiple traces per chart, multiple
chart groups, and support for up to 100
Personal Daq devices attached to one PC.
| • |
Allows display groups to be created for customized viewing |
| • |
Supports up to 100 Personal Daq devices |
Personal DaqViewXLTM
The optional Personal DaqViewXL software allows
Personal DaqView or Personal
DaqViewXL Plus to execute seamlessly from
within Microsoft® Excel’s tool palette. Acquired
measurements are inserted directly
into an Excel spreadsheet in real time.
| • |
Allows formula creation on acquired data |
| • |
Provides control of acquisition from spreadsheet |
Personal DaqViewXL PlusTM
The optional Personal DaqViewXL Plus combines
the features of Personal DaqView Plus and
Personal DaqViewXL into one package.
Expandable Inputs
The OMB-DAQ-55 and OMB-DAQ-56 are expandable through the use of the OMB-PDQ1 and OMB-PDQ2 expansion modules as shown in the
table below. The OMB-DAQ54 does not have any expansion capability.
| OMB-DAQ and Expansion System Channel Capacities
|
| Product or System
|
Volts/TC
Inputs*
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Digital I/O
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Freq/Pulse
Inputs
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| OMB-DAQ-54
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5 DE, 10 SE
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None
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None
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| OMB-DAQ-55
|
5 DE, 10 SE
|
8
|
2
|
| OMB-DAQ-56
|
10 DE, 20 SE
|
16
|
4
|
| OMB-PDQ1 Expansion Module
|
10 DE, 20 SE
|
16
|
-
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| OMB-PDQ2 Expansion Module
|
20 DE, 40 SE
|
-
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-
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| OMB-DAQ-55 + OMB-PDQ1
|
15 DE, 30 SE
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24
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2
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| OMB-DAQ-55 + OMB-PDQ2
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25 DE, 50 SE
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8
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2
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| OMB-DAQ-56 + OMB-PDQ1
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20 DE, 40 SE
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32
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4
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| OMB-DAQ-56 + OMB-PDQ2
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30 DE, 60 SE
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16
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4
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* DE = Differential Inputs, SE= Single-endied inputs.
Thermocouples are only available as differential inputs(DE)
| Thermocouple Inputs and Ranges
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Thermocouple
Type
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Temperature
Ranges
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| J
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-100 to 700°C
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| K
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-200 to 1200°C
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| T
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-100 to 400°C
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| E
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-100 to 500°C
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| R
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400 to 1400°C
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| S
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400 to 1400°C
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| B
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700 to 1400°C
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| N
|
-100 to 700°C
|
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| Input Voltage Ranges
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| Differential
|
Single-ended
|
| -20 V to +20 V
|
10 V to +20 V
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| -10 V to +10 V
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10 V to +10 V
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| -5 V to +5 V
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5 V to +5 V
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| -4 V to +4 V
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4 V to +4 V
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| -2.5 V to +2.5 V
|
2.5 V to +2.5 V
|
| -2 V to +2 V
|
2 V to +2 V
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| -1.25 V to +1.25 V
|
1.25 V to +1.25 V
|
| -1 V to +1V
|
1 V to +1 V
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| -625 mV to +625 mV
|
625 mV to +625 mV
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| -500 mV to +500 mV
|
500 mV to +500 mV
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| -312 mV to +312 mV
|
312 mV to +312 mV
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| -250 mV to +250 mV
|
250 mV to +250 mV
|
| -156 mV to +156 mV
|
156 mV to +156 mV
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| -125 mV to +125 mV
|
125 mV to +125 mV
|
| -62 mV to +62 mV
|
62 mV to +62 mV
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| -31 mV to +31 mV
|
31 mV to +31 mV
|
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Speed Versus Resolution
Measurement
Duration |
Max. Sample Rate (Continous Calibration Disabled) |
Resolution
(Bits RMS)
(±4V) |
| Voltage |
Thermocouple |
| 1 Channel/Scan |
10 Channel/Scan |
1 Channel/Scan |
10 Channel/Scan |
610 ms
(50/60 Hz
Rejection)
|
1.6 Hz
(625 ms)
|
0.16 Hz
(6.25 secs)
|
1.5 Hz
(667 ms)
|
0.16 Hz
(6.25 secs)
|
22
|
| 12.5 ms
|
66 Hz
(15 ms)
|
7.8 Hz
(128 ms)
|
25 Hz
(40 ms)
|
6 Hz
(167 ms)
|
15
|
Specifications
General
Isolation: 500 V from PC
Power Requirements:
Powered from USB, or from external
+6 to +16 VDC when used with a
bus-powered hub
Environmental:
0 to 50°C (0 to 122°F)
95% RH (non-condensing)
Dimensions:
92 W x 182 L x 45 mm H
(3.6 x 7.1 x 1.6")
Analog Specifications
Each channel is configurable for
single-ended
or differential, Volts,
or thermocouple inputs
OMB-DAQ-54, OMB-DAQ-55:
10 single-ended, 5 differential;
Volts or TC channels
OMB-DAQ-56:
20 single-ended, 10 differential;
Volts or TC channels
Thermocouple Type
and
Temperature Ranges:
J (-100 to 700°C),
K (-200 to 1200°C),
T (-100 to 400°C),
E (-100 to 500°C),
R (400 to 1400°C),
S (400 to 1400°C),
B (700 to 1400°C),
N (-100 to 700°C)
Thermocouple Accuracy:
In very slow mode,
22 bit
resolution, includes cold
junction compensation error:
J (±1.1°C), K (±1.2°C), T (±1.1°C);
E (±1.0°C), R (±2.5°C), S (±2.6°C),
B (±3.3°C), N (±1.5°C)
Cold Junction Compensation
Accuracy: (±0.5°C),
Over-Voltage Protection: ±45 V
relative to analog Lo
AC Common Mode Rejection:
>120 dB @ 60 Hz
Channel-to-Channel Crosstalk:
<-120 dB (DC to 100 Hz);
Accuracy:
OMB-DAQ-55/56: 0.015% of reading +0.002% of range
(exclusive of noise)
OMB-DAQ-54: 0.015% of reading
+0.004% of range (exclusive
of noise)
Input Resistance: >10 M Ohm
(SE), >20 M Ohm (DE)
Bias Current: <1 nA (0-35°C)
|
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Frequency Measurements
(OMB-DAQ-55 and OMB-DAQ-56 only)
OMB-DAQ-55: 2 frequency/pulse
input channels
OMB-DAQ-56: 4 frequency/pulse
input channels
Operating Modes: Pulse count
(totalize), duty-cycle, and frequency
Frequency Response:
DC to 1 MHz
Input Range:
±15 V absolute maximum
<1.3 V (low), >3.8 V (high)
Pull-Up Resistor: 27 K Ohm
to +5 V
for switch or relay sensing
Debouncing: None, 0.8, 3.2,
or 13 mSec. (software selectable)
Totalize: Up to 2 32
counts/scan
Frequency & Duty-Cycle
(OMB-DAQ-55 and OMB-DAQ-56 only)
Resolution: 7 digits.
Actual resolution depends on scan
rate.
At 10 scans/s, resolution is
5 digits (10 ppm); at 1 scan/s,
6 digits (1 ppm)
Digital I/O
(OMB-DAQ-55 and OMB-DAQ-56 only)
Each I/O line is individually
programmable as input or output.
OMB-DAQ-55: 8 digital I/O lines
OMB-DAQ-56: 16 digital I/O lines
Each I/O line includes an open-collector
driver with a 27 K Ohm
pull-up resistor
to +5 V for output,
and a Schmitt-trigger input buffer
Digital Input
Voltage Range: ±15 V Thresholds:
<1.3 V (low), >3.8 V (high)
Digital Output
Maximum Switch Voltage:
0 to +15 Vdc (20 V for <1 minute)
Maximum Switch Current:
150 mA/output continuous,
500 mA/output peak (<100 µs),
150 mA total continuous (per bank
of 8 outputs)
Output Resistance: 10 Ohms max
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† All dollar amounts on this site are shown in US currency.
Note: Each unit is supplied with Personal DaqVIEW Software, drivers for Visual Basic,C++ and Delphi for Windows, terminal block and a complete operator’s manual on CD.
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Related Links -
Related Products
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Related Products
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OMB-DAQBOOK:
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Portable Data Acquisition SystemsFor Notebook and Desktop PCs
Discontinued Product
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Keywords:Personal Daq, USB TEMPERATURE
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