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Eight Channel Thermocouple-Voltage Input USB Data Acquisition Modules
OM-USB-TC, OM-USB-TC-AI and OM-USB-5201
PLACE ORDER - OM-USB-TC and OM-USB-5201 Have 8 Thermocouples Inputs
- OM-USB-TC-AI Has 4 Thermocouple Inputs and 4 Analog Voltage Inputs
- OM-USB-5201 Has Data Logging Capability (Compact Flash)
- 24-Bit Resolution
- Software Programmable for Thermocouple Types J, K, T, E, R, S, B, N
- Built-In Cold junction Compensation and Open Thermocouple Detection
- Eight Digital I/O
- No External Power Supply Required (Except for OM-USB-5201)
Description
Description
The OM-USB-TC, OM-USB-TC-AI and OM-USB-5201 are USB 2.0full-speed thermocouple input data acquisition modules (fullycompatible with both USB 1.1 and USB 2.0 ports).These are stand-alone plug-andplay modules which draw powerfrom the USB cable (included). No external power supply is required(except for OM-USB-5201 which requires an ac adaptor). Allconfigurable options are software programmable, and the modulesare fully software calibrated.
The OM-USB-TC and OM-USB-5201 provide eightdifferential thermocouple input channels and have two integratedcold junction compensation (CJC) sensors for thermocouplemeasurements. The OM-USB-TC-AI provideseight analog input channels that are configured as four differentialtemperature inputs and four differential or single-ended voltageinputs. The module has one cold junction compensation (CJC)sensors for the thermocouple measurements. Thermocouplesinputs are software programmable for types J, K, T, E, R, S, B and N. An open thermocouple detection feature lets you detect a brokenthermocouple. An on-board microprocessor automaticallylinearizes the thermocouple measurement data. Voltage inputs(OM-USB-TC-AI only) are software programmable for ±10V, ±5V,±2.5V and ±1.25V ranges. Eight independent, TTL-compatible digital I/O channels are provided to monitor TTL-level inputs,communicate with external devices and to generate alarms.The digital I/O channels are software programmable for input or output.
The OM-USB-5201 features eight independent temperature alarms.Each alarm controls an associated digital I/O channel asan alarm output. The input to each alarm is any one of thetemperature input channels. The output of each alarm is softwareconfigurable as active high or low. The temperature thresholdcondition to activate each alarm is user programmable. When analarm is activated, the associated digital I/O channel is driven to theoutput state. The OM-USB-5201 also has data logging capability.Measurements can be logged to a standard CompactFlashmemory card (a 512 MB CompactFlash memory card isincluded with the OM-USB-5201). Data logging can only be donewhen the OM-USB-5201 is disconnected from the computer.External power is required for data logging via the included acadaptor. User programmable settings in data logging modeinclude sampling interval and logging start mode (on power up,on button press or at a specified data and time).
The OM-USB-TC, OM-USB-TC-AI and OM-USB-5201 modules ship with an impressive array of software, including the new TracerDAQ®, a full-featured, out-of-the-box data logging, viewing, and analysis application. Driver support and detailed example programs are included for Universal Library programminglibraries for Microsoft® Visual Studio® programming languages, and otherlanguages, including DASYLab®, and ULx for NI LabVIEW® (comprehensivelibrary of VIs and example programs compatible with 32-bit and 64-bitLabVIEW v8.5 through 2012) and InstaCalTM installation, calibrationand test utility-powerful solutions for programmers and nonprogrammersalike. These modules operate under Microsoft Windows® XP (32-bit only) and VISTA/7/8 (32-bit and 64-bit) operating systems.
The OM-USB-TC, OM-USB-TC-AI and OM-USB-5201 data acquisition modules are supplied with TracerDAQ software which is a collection of four virtual instrument applications used to graphically display and store input data andgenerate output signals:
• Strip Chart—Log and graph values acquire from analoginputs, digital inputs, temperature inputs andcounter inputs
• Oscilloscope—Display values acquired from analog inputs
• Function Generator—Generate waveforms for analog outputs
• Rate Generator—Generate waveforms for counter outputs
TracerDAQ PRO is an enhanced version of TracerDAQ.A comparison of some of the features included in TracerDAQ vsTracerDAQ PRO is shown below.
SPECIFICATIONS
A/D CONVERTER
OM-USB-TC and OM-USB-5201:Four dual 24-bit sigma delta A/D converters
OM-USB-TC-AI: Dual 24-bit sigma-delta A/D converters
Input Isolation: 500 Vdc min between field wiring and USB interface
Number of Channels:
OM-USB-TC and OM-USB-5201: 8 differential thermocouple inputs
OM-USB-TC-AI; 4 differential thermocouple inputs and4 differential or single-ended voltage inputs
Maximum Input Voltage: Thermocouple inputs; ±25V(power on), ±40V (power off): voltage inputs; ±25V (power on),±15V (power off)
Input Impedance: Thermocouple inputs; 5 GΩ(power on), 1 MΩ (power off): voltage inputs; 10 GΩ(power on), 2.49 kΩ (power off)
Input Leakage Current: Thermocouples inputs;105 nA max (with open thermocouple detectionenabled), 30 nA max (with open thermocouple detectiondisabled): voltage inputs;
±1.5 nA typ, ±25 nA max
Maximum Working Voltage
(OM-USB-TC-AI
Voltage Inputs): ±10.25V max (input signal + common mode)
Common Mode Rejection: Thermocouple inputs,110 dB min; voltage mode, 83 dB min
Warm-Up Time: 30 minutes max
Open Thermocouple Detection: Automatically enabled when achannel is configured for a thermocouple sensor
CJC Sensor Accuracy: ±0.25°C typical, ±0.5°C max (15 to 35°C);-1.0 to 0.75°C max (0 to 70°C)
ANALOG INPUT CALIBRATION
Recommended Warm-Up Time: 30 minutes max
Calibration: Firmware calibration
Calibration Interval: 1 year
Calibration Reference: +10.000V, ±5 mV max; actualmeasured values stored in EEPROM
Tempco: 5 ppm/°C max
Long Term Stability: 30 ppm/1000 hrs
DIGITAL I/O
Number of Digital I/O Channels: 8
Type: CMOS
Configuration: Each DIO bit can be independently configured forinput or output;
power on reset is input mode
Pull-Up/Pull-Down Configuration: All pins pulled up to 5V via 47 kΩresistors (default).
Pull-down to ground (GND) also available
Digital I/O Transfer Rate (Software Paced):
Digital Input: 50 port reads or single bit reads per second (typical)
Digital Output: 100 port writes or single bit writes per second (typical)
Input High Voltage: 2.0V min, 5.5V absolute max
Input Low Voltage: 0.8V min, -0.5V absolute min
Output High Voltage: 0.7V max (IOL = 2.5 mA)
Output Low Voltage: 3.8V min (IOH = -2.5 mA)
COUNTER
(OM-USB-TC-AI ONLY)
Number of Channels: 1
Resolution: 32-bit
Counter Type: Event counter
Input Type: TTL, rising edge triggered
Counter Read/Write Rates(Software Paced, System Dependent):
33 to 1000read/writes per second
Schmitt Trigger Hysteresis: 20 to 100 mV
Input Leakage Current: ±1.0 uA typical
Input Frequency: 1 MHz max
High Pulse Width: 500 ns min
Low Pulse Width: 500 ns min
Input High Voltage: 4.0V min, 5.5V absolute max
Input Low Voltage: 1.0V max, -0.5V absolute min
DATA LOGGING
(OM-USB-5201 ONLY)
Memory Card Type: Compact Flash 512 MB card included:stores data for approx. 60 days when logging all 8-channelsat 2 samples/sec or 150 days when logging only 1-channelat 2 samples/sec
Logging Rate: 1 sec up to 232 seconds (1 sec intervals)
Logging Start Method: On power up, on button press or at specifieddate/time (user programmable)
Logging Stop Method: Button press
GENERAL
Memory: EEPROM
Microcontroller: Two high-performance 8-bitRISC microcontrollers
Power Supply Voltage (Supplied by USB Port):4.75V min to 5.25V max
Power Supply Current (Supplied by USB Port): <100 mA typical(USB enumeration); 270 mA typical for continuous input with all inputsconfigured for disabled mode (500 mA for OM-USB-5201)
User 5V Output Voltage Range (connected to self-powered hub):
OM-USB-TC/OM-USB-5201; 4.75V min to 5.25V max
OM-USB-TC-AI; 4.9 V min to 5.1 V max
User 5V Output Current (bus powered and connectedto self-powered hub):
OM-USB-TC/OM-USB-5201; 10 mA max
OM-USB-TC-AI; 5 mA max
Available Isolation: 500 Vdc min measurement system to PC
USB Device Type: USB 2.0 (full-speed)
Device Compatibility: USB 1.1, USB 2.0
USB Cable Length: 3 m (10') max
Dimensions: 127 L x 89 W x 36 mm H(5.0 x 3.5 x 1.4")
Input Connections: Screw terminal blocks (accept 16 to 30 AWG wire)
Operating Temperature: 0 to 50°C (32 to 122°F),0 to 90% RH non-condensing
Storage Temperature: -40 to 85°C (-40 to 185°F)
Weight:
OM-USB-TC and OM-USB-TC-AI: 182 g (6.4 oz)
OM-USB-5201: 227 g (8.0 oz) Anemometer | Automation | Accelerometers | Calibrator | Cartridge Heaters | Chart Recorders | Cryogenics | Custom Pressure Transducers | Data Loggers | Data Acquisition | Dial Thermometers | Fiber Optics | Fiber Optic Temperature Measurement | Flexible Heaters | Flow Meters | Glass Bulb Thermometers | Grippers | Heaters | Humidity Measurement | Integrated Circuit Sensors | Immersion Heaters | Infrared Thermometers | Level Measurement | Load Cells | M12 Temperature Connectors | Magnetic Flow Meter | Panel Meter | PID Controllers | pH meter | Pressure Gauges | Pressure Transducers | Pressure Transmitters | Rotameters | RTD | Remote Process Monitoring | Sanitary Sensors | Signal Conditioners | Stepper Motors | Strain Gages | Strip Heaters | Temperature Controllers | Temperature Labels | Temperature Measurement | Temperature Sensor Manufacturing | Temperature Sensors | Temperature Transmitters | Thermal Imagers | Thermistors | Thermocouple | Thermocouple Wire | Thermowell | Ultrasonic Flow Meters | Vortex Flow Meter | Wireless Sensors
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