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USB Data Acquisition Module
Screw Terminals, CJC Sensors, USB 2.0 Port, and Activity LED for Direct Temperature Measurement (UMDAS TC model shown)
UMDAS TH

USB Data Acquisition Module - 8 Channels of TC/RTD/Thermistor/Semiconductor Temperature Input, 8 DIO

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 Features
System BusUSB 2.0
Number of Channels8
A/D Converter Resolution24-bit
Max. A/D Speed (throughput)384Hz
Number of I/O Lines8
USB Data Acquisition Module Remote Temperature Measurement Modules
 
Introduction

Our UMDAS TH and UMDAS TC remote analog input modules are ideal for high-resolution temperature measurements anywhere in your plant. These modules provide 8 differential temperature input channels plus 8 independently programmable digital I/O channels. UMDAS TC accepts thermocouple inputs. UMDAS TH accepts thermocouple, RTD, thermistor, and semiconductor inputs.

Two integrated CJC sensors enhance accuracy, and an open-thermocouple feature automatically spots broken thermocouples. An on-board microprocessor with EEPROM memory automatically linearizes the measurement data. The module is fully software calibrated, and all configurable options are software programmable.

Choose from our family of USB temperature-input devices:

  • UMDAS TC: USB bus, 8-ch thermocouple input, CJC, 8 DIO
  • UMDAS TCLOG: UMDAS TC with 64MB CompactFlash (no PC required)
  • UMDAS TH: USB bus, 8-ch thermocouple, RTD, thermistor, or semiconductor input, CJC, 8 DIO
  • UMDAS THLOG: UMDAS TH with 64MB CompactFlash (no PC required)
  • UWDAS TC: Wireless and USB bus, 8-ch thermocouple input, CJC, 8 DIO
  • UWDAS TH: Wireless and USB bus, 8-ch thermocouple, RTD, thermistor, or semiconductor input, CJC, 8 DIO
  • UWDAS TXM: USB interface module for support of up to 10 UWDAS modules
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Product Information
System Bus USB 2.0
Bus Information Baud Rate, Max. 384 bps
Bus Standards Compliance USB 1.1
USB 2.0
System Bus Details
  • USB Type B (4-pin, square) connector
  • Plug-and-play USB 2.0, draws +5V power from the USB cable
  • Self-powered, 70mA max. pwr consumption
Designed to Replace UWDAS TH
Mounting Configuration Desktop / benchtop
External module
Direct Sensor Input Thermocouple
RTD
Thermistor
On-board Microprocessor Yes
On-Board Memory for Processor 1.5k
Analog Input Channels
Number of Channels 8
Differential Channels 8
A/D Converter Resolution 24-bit
Max. A/D Speed (throughput) 384Hz
A/D Speed/Bandwidth Details 2 samples/sec per channel max. , 16 samples/sec total.
Cold Junction Compensation CJC on all channels
Accuracy Relative Accuracy
  • Max. error from thermocouple inputs:  +/-2.653 deg. C.
  • Max. error from TMP36 or equiv. semiconductors: +/-0.5 deg. C.
  • Max. error from thermistor inputs:  +/-0.05 deg. C.

Resistance values greater than 660 ohms cannot be measured by this module in the RTD mode.  Maximum and typical accuracy errors for RTD mode vary with temperature, as follows:

  • -200 to -150 deg C:  +/-2.85 deg. C max., +/-2.59 deg. C typ.
  • -150 to -100 deg C:  +/-1.24 deg. C max., +/-0.97 deg. C typ.
  • -100 to 0 deg C:  +/-0.58 deg. C max., +/-0.31 deg. C typ.
  • 0 to 1000 deg C:  +/-0.38 deg. C max., +/-0.11 deg. C typ.
  • 100 to 300 deg C:  +/-0.39 deg. C max., +/-0.12 deg. C typ.
  • 300 to 600 deg C:  +/-0.40 deg. C max., +/-0.12 deg. C typ.
Noise CMRR (Common Mode Rejection Ratio) 100dB min.
NMRR (Normal Mode Rejection Ratio) 90dB min.
Input Impedance 5000MΩ
Input Impedance Details 5 Gigohm, min.
Input Protection Protected against voltages to +/-25VDC, max. (power on), +/-40VDC (power off)
A/D Special Features
  • For thermocouples, RTDs, thermistors, semiconductor temperature sensors
  • Channel configuration is software-progammable to match sensor type
  • 8 differential channels for thermocouples & semiconductor sensors, and for RTD & thermistor with either 2-wire inputs with 2 sensors or 4-wire
  • 4 differential channels for RTD & thermistor with either 2-wire inputs with 1 sensor or 3-wire with one sensor per channel pair
  • Built-in ambient temperature sensor
  • Independent temperature inputs
Input Ranges
Bipolar Input Ranges -80mV to +80mV
Unipolar Input Ranges 0 to +5V
0 to +2.5V
0 to +2V
Thermocouple Support Thermocouple Inputs J-type thermocouple
K-type thermocouple
T-type thermocouple
E-type thermocouple
R-type thermocouple
S-type thermocouple
B-type thermocouple
N-type thermocouple
J-type Range Supported -346°F....2192°F (-210°C....1200°C)
K-type Range Supported -454°F....2501.6°F (-270°C....1372°C)
T-type Range Supported -454°F....752°F (-270°C....400°C)
E-type Range Supported -454°F....1832°F (-270°C....1000°C)
R-type Range Supported -58°F....3214.4°F (-50°C....1768°C)
S-type Range Supported -58°F....3214.4°F (-50°C....1768°C)
B-type Range Supported 32°F....3308°F (0°C....1820°C)
N-type Range Supported -454°F....2372°F (-270°C....1300°C)
RTD Types Supported 100-ohm Platinum (-100° to +100°C), alpha = 0.00385 (IEC)
100-ohm Platinum (0° to +100°C), alpha = 0.00385 (IEC)
100-ohm Platinum (0° to +200°C), alpha = 0.00385 (IEC)
100-ohm Platinum (0° to +600°C), alpha = 0.00385 (IEC)
100-ohm Platinum (0° to +850°C), alpha = 0.00385 (IEC)
100-ohm Platinum
100-ohm Platinum (-100° to +200°C), alpha = 0.00385 (IEC)
100-ohm Platinum (-100° to +100°C), alpha = 0.003916 (JIS)
100-ohm Platinum (-100° to +200°C), alpha = 0.003916 (JIS)
100-ohm Platinum (0° to +100°C), alpha = 0.003916 (JIS)
100-ohm Platinum (0° to +200°C), alpha = 0.003916 (JIS)
100-ohm Platinum (0° to +600°C), alpha = 0.003916 (JIS)
100-ohm Platinum (0° to +850°C), alpha = 0.003916 (JIS)
100-ohm Platinum (-50° to +150°C), alpha = 0.00385 (IEC)
100-ohm Platinum (-50° to +150°C), alpha = 0.003916 (JIS)
100-ohm Platinum (-200° to +200°C), alpha = 0.00385 (IEC)
100-ohm Platinum (0° to +400°C), alpha = 0.00385 (IEC)
100-ohm Platinum (-200° to +200°C), alpha = 0.003916 (JIS)
100-ohm Platinum (0° to +400°C), alpha = 0.003916 (JIS)
100-ohm Platinum (-200° to +600°C), alpha = 0.00385 (IEC)
100-ohm Platinum (-200° to +600°C), alpha = 0.003916 (JIS)
Thermistor Support Thermistor Range Standard 2.252-ohm through 30,000-ohm:
  • 2252-ohm: -40 to 120°C, accuracy ±0.05°C
  • 3000-ohm: -40 to 120°C, accuracy ±0.05°C
  • 5000-ohm: -35 to 120°C, accuracy ±0.05°C
  • 10000-ohm: -25 to 120°C, accuracy ±0.05°C
  • 30000-ohm: -10 to 120°C, accuracy ±0.05°C
A/D Range Selection Software
Input Range Details
  • Differential Input Voltage Range:
       - Thermocouple: ±0.08V
       - RTD: 0 to 0.5V
       - Thermistor: 0 to 2V 
       - Semiconductor Sensor: 0 to 2.5V
  • Absolute Max. Input Voltage: ±25V pwr on; ±40V pwr off (±C0x through ±C7x relative to GND)
Isolation, Field-to-Logic 500VDC
Isolation Details 500VDC minimum isolation between field wiring and USB interface.
Trigger Modes
Triggering Type(s) Supported Software trigger (software-controlled trigger)
Digital I/O
Number of I/O Lines 8
Digital I/O Details
  • Digital Type: CMOS
  • Independently configurable for input or output
Primary Digital I/O Configuration 8 bidirectional
Input/Output Selection Software
Signal Connector Screw terminals
Inputs Input Voltage - High (Vih, DC) 2V....5.5V
Input Voltage - Low (Vil) -0.5V....0.8V
Outputs Output Voltage - High (Voh) 3.8V....5V
Output Voltage - Low (Vol) 0mV....0.7V
Output Current Sink, max. 2.5mA
Software
Software Included Free with Product Software developer's kit
calibration software
Software Included - Features Driver software
Operating System Compatibility Windows XP
Windows 2000
Windows Me
Windows 98
Software Compatibility Universal Driver Library
DASYLab®
LabVIEW®
Cables and Connectors
Connector #1 Quantity 52
Type Screw terminals
Location On module
Connector & Cabling Details
  • Wire Gauge Range: 16 AWG to 30 AWG
  • Include 6' USB cable with Type A to Type B connectors
Construction
Construction Material Impact resistant ABS plastic
Power
Power Consumption (typical) 70mA max.
Power Supply Notes USB +5V (VBUS) input voltage range (4.75V min. to 5.25V max.)
Indicators & Controls
Other Control Features LED activity indicator
Environmental Specifications
Operating Temperature 32°F....158°F (0°C....70°C)
Storage Temperature -40°F....185°F (-40°C....85°C)
Relative Humidity, noncondensing 0%....90%
Safety & Standards Compliance
Safety/Approvals Meets CE standards
Dimensions
Width 3.49" (88.7mm)
Height 1.4" (35.56mm)
Depth 5" (127mm)
Dimension Details
  • 1.56" (39.6mm) H with included non-skid feet
  • USB Cable: 6-ft long, 0.18 lb
Weight
Weight 0.34lbs (154.22g )
Shipping Weight 1.26lbs (571.53g )
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Ordering - Includes Options Indicated Below
UMDAS TH
USB Data Acquisition Module - 8 Channels of TC/RTD/Thermistor/Semiconductor Temperature Input, 8 DIO
$545.00
Catalog # Shipping Price (with options) Qty  
UMDAS TH Call for Availability
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