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Universal Data Acquisition System (UDAS)
Brand: Validyne EngineeringThe Universal Data Acquisition System(UDAS) Sensor Interface provides real world data acquisition for your PC via the USB port. 16 sensor inputs in any mix or combination are accepted by the UDAS. No external signal conditioning is required. The UDAS includes configuration and data acquisition software.
Thermocouples, RTDs, strain gages, LVDTs, potentiometers, VR sensors and low-level DC voltages are wired directly to the USB terminals in any mix or combination of single-ended or differential input types. All required excitation, amplification and linearization is provided by the UDAS. No additional equipment is required.
The UDAS features 10 input ranges from 20 mV to 10.24 V full scale all with 16 bits of resolution, programmable channel-by-channel. An innovative dual-conversion scheme provides outstanding zero offset correction for low-level measurements.
The UDAS provides polynomial linearization for thermocouples and RTD’s. Scale and offset factors can be applied to all inputs. The UDAS produces a floating-point value for all readings, directly in engineering units.
Software for the UDAS includes a GUI configuration utility that allows the user to set sensor type, gain range, channel, and all other input parameters. The configuration can be saved to non-volatile memory on the card so that The UDAS can be used in embedded applications.
Easy Sense 2250 data acquisition software is also included so that the user may record sensor data to an ASCII file in real time.
Graphing Capabilities and Trigger Functionality included in the Premium Version of Easy Sense.
Features- Direct Sensor Input
- No External Signal Conditioning Needed
- Sensor Excitation Included
- On-Board TC, RTD Linearization
- All Cables and Terminal Blocks Included
- Separate TC Reference Temp Sensor Channel Provided
Specifications
Brand
Available I/O
- 16 single ended inputs which can be paired as differential inputs in any combination.
I/O Connections
- Analog input terminal block with screw terminal connections.
Environmental
- 0 +55C, 95 % RH, non-condensing
Power Required
- External 100-240 Vac, 50/60 Hz. Power adapter is provided.
Thermocouples
- Type J, K, E, T, & S, linearized in C. Typicacl resolution 0.05C.
RTD
- Pt 391, Pt 392, Pt385 alpha, linearized -200 to +850C. 2, 3, or 4-wire configurations. Excitation from internal current source supplied. Typical resolution, 0.05C
Strain Gages
- Up to 9 120 Ohm full bridge gages at 5 Vdc excitation or 8 350 Ohm (or greater) gages at 5 Vdc or 10 Vdc, selectable excitation. Partial bridges completed to terminal block. Precision excitation to 350 mA @ 5 V and 300 mA @ 10 V provided.
LVDT/RVDT/VR
- 4 mv/V to 2.6 V/V in 10 binary ranges. 2.5 Vac @ 5 kHz sine wave excitation provided.
Voltages
- ± 20 mv to ± 10.24 Vdc FS single-ended or differential inputs in 10 binary ranges
Resistances
- 20 Ohms to 150K Ohms, Full Scale.
Sensor Excitation
- Internal +5 Vdc to +10 Vdc for strain gages, (0.35 A Max.), current source for RTD’s, 1.0 mA nominal per channel @ 5 Vdc. 2.5 Vac @ 5 kHz sine wave carrier for LVDT and VR sensors
Input Protection
- Over-voltage to ± 25 Vpk (power off), or ± 40 Vpk (power on). Typical static discharge 4 KV is survivied.
Common Mode
- ± 10
Crosstalk
- -115 db or better
Resolution
- 16 bits
Averaging
- Programmable rolling average for each channel.
Data Acquisition Rate
- 100,000 readings per second, spread over active inputs
System Accuracy
- Total system error 0.02 % Full Scale. Range temperature coefficient typically 50 ppm/C. Offset zero temperature coefficient typically 0.15 uV/C.
Dimensions
- USB2250 Box : 10” x 6” x 1.5”
- Cable : 36”
- Terminal Block : 6.25” x 3.5” x 0.25”