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Screw Terminals, CJC Sensors, USB 2.0 Port, and Activity LED for Direct Temperature Measurement
Screw Terminals, CJC Sensors, USB 2.0 Port, and Activity LED for Direct Temperature Measurement
UMDAS TC

USB Thermocouple Input Module - 8 Thermocouple Channels of 24-bit A/D, 8 DIO

Qty   Price (with options selected)
Shipping: 2-5 business days
 Features
System BusUSB 2.0
Number of Channels8
A/D Converter Resolution24-bit
Max. A/D Speed (throughput)384Hz
Number of I/O Lines8
Screw Terminals, CJC Sensors, USB 2.0 Port, and Activity LED for Direct Temperature Measurement <P>UMDAS and UWDAS remote temperature-measurement modules let you gather data 
with or without a physical connection to your computer. </P>
<P>Connect via USB cables, by changing out CompactFlash card, or via encrypted 
wireless transmission -- all with your choice of sensing devices. </P>
 
Introduction

Our UMDAS TC and UMDAS TH 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
Less Detail  More Detail
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
Designed to Replace UWDAS TC
Mounting Configuration Desktop / benchtop
External module
Direct Sensor Input Thermocouple
On-board Microprocessor Yes
On-Board Memory for Processor 1K
Analog Input Channels
Number of Channels 8
Differential Channels 8
A/D Converter Resolution 24-bit
Max. A/D Speed (throughput) 384Hz
Typ. A/D Speed (throughput) 384Hz
A/D Speed/Bandwidth Details Each two channels share a dual-channel 24-bit A/D converter.  Each channel pair is sampled twice per second, regardless of the number of channels in use.  If all 8 channels are used, then the total throughput is is 16 samples per second, or 384 bps.
Cold Junction Compensation CJC on all channels
Accuracy Relative Accuracy Typical errors range from +/-0.245 deg. C to +/-0.650deg. C, depending on thermocouple type.  Maximum errors range from +/- 0.639 deg. C to +/-2.653 deg. C, depending on thermocouple type.
Noise CMRR (Common Mode Rejection Ratio) 100dB min. @ 50/60Hz
NMRR (Normal Mode Rejection Ratio) 90dB min. @60Hz
Input Impedance 5000MΩ
Input Impedance Details 5 Gigohm min.
A/D Special Features
  • Four dual 24-bit Sigma-Delta type A/D converters
  • Two CJC high-resolution temperature sensors measure the average temperature at the terminal blocks so that the cold junction voltage can be calculated and the thermocouple reading corrected via software
  • CJC Sensor Accuracy: ±25°C typ. & ±0.5°C max. @ 15 to 35°C
    -1.0 to +0.5°C max. @ 0 to 70°C
  • Open thermocouple detection (OTD)
  • 500VDC minimum isolation between field wiring and USB interface
Input Ranges
Bipolar Input Ranges -80mV to +80mV
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 -346°F....2501.6°F (-210°C....1372°C)
T-type Range Supported -328°F....1112°F (-200°C....600°C)
E-type Range Supported -328°F....1832°F (-200°C....1000°C)
R-type Range Supported -58°F....3214.58°F (-50°C....1768.1°C)
S-type Range Supported -58°F....3214.58°F (-50°C....1768.1°C)
B-type Range Supported 482°F....3308°F (250°C....1820°C)
N-type Range Supported -328°F....2372°F (-200°C....1300°C)
A/D Range Selection Fixed
Input Range Details Range is automatically selected by configuring sensor type in software.
Gains 1
Isolation, Field-to-Logic 500VDC
Isolation Details 500VDC min. input isolation between field wiring and USB interface
Trigger Modes
Triggering Features Triggering is fixed at 2 (24-bit) samples per second on each channel.
Digital I/O
Number of I/O Lines 8
Digital I/O Details TTL-compatible, individually configurable as 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
Digital Input Features Transfer rate is software paced, typically 50 port reads or single-bit reads per second.
Outputs Output Voltage - High (Voh) 3.8V....5V
Output Voltage - Low (Vol) 0mV....0.7V
Output Current Sink, max. 2.5mA
Output Current Sink Details 2.5mA @ 0.7V
Output Current Source Details -2.5mA @ 3.8V
Output/Relay Details Transfer rate is software paced, typically 100 port writes or single-bit writes per second.  Power-on reset is input mode.
Software
Software Included Free with Product calibration software
Software Included - Features InstaCal calibraton software included.  Other software under development.
Operating System Compatibility Windows XP
Windows 2000
Windows Me
Windows 98SE
Software Compatibility Universal Driver Library
DASYLab®
LabVIEW®
Cables and Connectors
Connector #1 Quantity 52
Type Screw terminals
Location On module
Connector & Cabling Details
  • Includes a 3-meter (max.) USB cable
  • 52 screw terminals arranged in a block of 10 and of 16 screw terminals on either side of the module, with a CJC sensor on each side, between each set of blocks
  • Wire Gauge Range: 16 to 30 AWG
Construction
Construction Material Industrial plastic
Power
Power Consumption (typical) 70mA max.
+5V 70mA
Power Supply Notes
  • USB bus; draws +5V power from the USB cable
  • Two +5V terminals (output) are isolated (500VDC) from the USB +5V power
Indicators & Controls
Other Control Features Power and data LED 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 3.5" (88.9mm)
Height 1.4" (35.56mm)
Depth 5" (127mm)
Less Detail Less Detail
 
Ordering - Includes Options Indicated Below
UMDAS TC
USB Thermocouple Input Module - 8 Thermocouple Channels of 24-bit A/D, 8 DIO
$295.00
Catalog # Shipping Price (with options) Qty  
UMDAS TC 2-5 business days
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