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High Accuracy PCI Thermocouple-Multifunction Data Acquisition Systems
OMB-DAQTEMP Series
PLACE ORDER - Includes a PCI Plug-n-Play Card, Screw-Terminal/Signal Conditioning Pod, Cable and Extensive Software Support
- 14 Thermocouple Input Channels
- Supports Thermocouple Types J, K, S, T, B, E, N, R
- 7 Differential Voltage Inputs, with 13 Programmable Ranges from +156 mV to +10V Input
- 200K Readings Per Second - No Averaging Required*
- 24 Digital I/O Lines
- 4 Frequency/Pulse Counting Input Channels
- 4 Channel 16 bit/100K Hz Analog Outputs
- 100% Digital Calibration
- DaqView Software for Effortless Set Up, Acquisition, and Real-Time Data Viewing
- Drivers for DASYLab, LabView, Visual Basic, C++
Description
Description
The OMB-DAQTEMP-14A dataacquisition card provides a totalhardware/software/signalconditioning solution for highaccuracy,high speed temperature,voltage, frequency, and pulsecounting measurements, plus digitalI/O and analog output.
A diversified software is includedwith the OMB-DAQTEMP-14A, includingDaqView software, plus drivers forDASYLab, LabView, and Windowsbasedlanguages including VisualBasic and C++.
OMB-DAQTEMP-14A hardware iscomprised of a plug-n-play PCIboard, 3 ft cable, and a screwterminal/signal conditioning pod.Cold-junction compensation isbuilt-in to the OMB-DAQTEMP-14A,providing highly accuratethermocouple measurements, withchannel-to-channel variation andnoise typically less than 0.2°C,and absolute accuracy typicallybetter than 1.0°C. This isaccomplished by having a separatelow-noise, bandwidth-limitedamplifier per thermocouple channel.OMB-DAQTEMP-14A provides14 thermocouple inputchannels. All power for theOMB-DAQTEMP-14A is derived from thePC, so there is no need for externalpower supplies or transformers.
In addition to thermocouple inputs,OMB-DAQTEMP-14A also provides 7differential voltage input channels,with 16 bit resolution andprogrammable full scale inputranges from +156 mV to +10 V.The 4 frequency input channels canmeasure frequency or count pulsesup to 10 MHz. Two timer outputchannels are capable of generatingsquare outputs up to 1 MHz.
Twenty four digital I/O lines are alsoincluded, which can be programmedin 8 bit groups as either inputs oroutputs.
The 16 bit/100K Hz analogoutputs can be used to generatewaveforms, with a virtually infinitewaveform output length possiblefrom PC memory.
All inputs and outputs are accessedvia convenient screw terminalslocated on the signal conditioningpod. The cover of the signalconditioning pod is easily removableto gain access the screw terminalsfor signal connections.
DAQVIEW SOFTWARE
The included DaqView softwareallows you to verify signalconnections, acquire and save datato disk, and graphically view realtimedata within moments of takingyour installing your system. Easilyset up all your hardware,acquisition, and display parameters,without programming, via a simplespreadsheet-style screen. DaqViewis a full featured acquisition anddisplay application that provides allthe functionality you’ll need formany datalogging applications.
SWD-DAQVIEW-XL
DaqViewXL is an optional Exceladd-in that provides complete dataacquisition functionality. Seamlesslyintegrated into Excel’s tool palette,DaqViewXL provides you with thesame comprehensive acquisitionand display capabilities asDaqView. Excel is an ideal tool fortest engineers because it provides avariety of graph and chartingfunctions for presenting data in agraphical format, as well asmathematical and analysis functionssuch as FFTs. Excel’s ability toretrieve and manipulate previouslyacquired data in a spreadsheetformat and DaqViewXL’s advanceddata acquisition functions form acomprehensive data acquisitionsolution.
Specifications
GENERAL
Supply Voltage Range: 4.75 Vdc 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
Nonlinearity (Integral): ±1 LSB
Nonlinearity (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 to10 V, 0 to 5 V, 0 to 2.5 V, 0 to1.25 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
Voltage Accuracy: One year, 0 to 35°C (exclusive of noise); for full-scale input ranges from 2.5 V to 10V, 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 us to 1 LSB for full-scale step
Temperature Coefficient: ±(10ppm +0.3 LSB)/°C
Input Impedance: 20M Ohm(differential)
Bias Current: <1nA (0 to 35°C)
Common Mode Rejection: 86 dB, DC to 60 Hz for gains <=8;>100 dB for gains >=16
Maximum Input Voltage: ±11V relative to analog common
Over-Voltage Protection: ±35V
Crosstalk: 100 dB DC to 60 Hz;86 dB @10 kHz
THERMOCOUPLE INPUTS
Channels: 14 differential TC inputs
TC Types: J,K,S,T,E,B R,N,or mV input
Input Voltage Range: ±100 mV
Input Impedance: 40 M .
Input Bandwidth: 4 Hz
Input Bias Current: 10 nA
CMRR: 100dB typ
Over Voltage Protection: ±40 V
Voltage Accuracy: ±(0.2%of rdg +50 µV)
TC Accuracy: See PDFValid for one year,18°C to 28°C.
Minimum TC resolution: 0.1 °C for all TC types
INPUT SEQUENCER
Temperature,voltage,digital andfrequency inputs can be scannedsynchronously,based on either aninternal programmable timer,or anexternal clock source.Analog anddigital outputs can be synchronizedto either of these clocks.
Scan Clock Sources: 2
1. Internal,programmable from5 µs to 5.96 hours in 5 us steps
2. External,TTL level input up to200 kHz max
External Acquisition ScanClock Input Maximum Rate: 200 kHz
Clock Signal Range: 0 to 5 V
Minimum Pulse Width: 50 ns high, 50 ns low
TRIGGERINGTrigger Sources: 6,individuallyselectable for starting and stoppingan acquisition.Stop acquisition canoccur on a different channel thanstart acquisition;stop acquisition canbe triggered via modes 2,4,5 or 6described below.Pre-trigger issupported with fixed or variablepre-trigger periods.
1.Single-Channel AnalogHardware Trigger
Any voltage or TC input channelcan be software programmedto be the analog trigger channel
Input Signal Range: -10 to 10 V max
Trigger Level: Programmable (11-bit resolution)
Hysteresis: Programmable (11-bit resolution)
Latency: 5 us max
2. Single-Channel AnalogSoftware Trigger
Any voltage or TC input channel canbe selected as the software triggerchannel.If the trigger channel is athermocouple,then the driverautomatically compensates for thedelay required to obtain the reading,resulting in a maximum latency ofone scan period.
3. Single-Channel Digital Trigger
A separate digital input is providedfor digital triggering
Input Signal Range: -15 to 15 V
Trigger Level: TTL
Min Pulse Width: 50 ns high,50 ns low
Latency: 5 us max
4. Digital Pattern Triggering
8-or 16-bit pattern triggering on thedigital input port.Programmable fortrigger on equal, above, below, orwithin/outside of a window.Individual bits can be masked forI don ’t care condition
Latency: One scan period max
5. Counter/Totalizer Triggering
Counter/totalizer inputs can triggeran acquisition.User can select totrigger on a frequency or on totalcounts that are equal,above,below,or within/outside of a window
Latency: One scan period, max.
6. Software Triggering
Trigger can be initiated underprogram control
ANALOG OUTPUT
Up to four analog output channelscan be updated synchronouslyrelative to scanned inputs,andclocked from either an internalonboard clock,or an external clocksource.Analog outputs can also beupdated asynchronously,independentof any other scanning in the system
Channels: 4
Resolution: 16 bits
Output Voltage Range: ±10 V
Output Current: ±10 mA
Offset Error: ±0.0045 V max
Gain Error: ±0.01%
Update Rate: 100 kHz max, 1.5 Hz min (no minimum withexternal clock)
Settling Time: 10 us max to 1 LSB for full-scale step
Clock Sources: 4, programmable
1. Onboard D/A clock,independentof scanning input clock
2. Onboard scanning input clock
3. External D/A input clock, independent of external scanninginput clock
4. External scanning input clock
FREQUENCY/PULSE COUNTERS
Counter inputs can be scannedsynchronously along with voltage,TC and digital scanned inputs,basedeither on internal programmabletimer,or an external clock source.Counters can be configured to clearwhen read,or to totalize and clearunder program control
Channels: 4 x 16-bit; cascadable as 2 x 32-bit
Frequency Measurement Rate: 10 MHz max
Input Signal Range: -15 to 15 V
Trigger Level:TTL
Minimum Pulse Width: 50 ns high, 50 ns low
Frequency/Pulse Generators
Channels: 2 x 16-bit
Output Waveform: Square wave
Output Rate: 1 MHz base ratedivided by 1 to 65535(programmable)
High-LevelOutput Voltage:
2.0 V min @-3.75 mA;
3.0 V min @-2.5 mA
Low-LevelOutput Voltage:
0.4 V max @2.5 mA
DIGITAL I/OChannels: 24
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