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OM-WEB-TC

OM-WEB-TC

分  类：其它

品  牌：欧米茄

厂  商：Omega工业测量（中国）

型  号：OM-WEB-TC

相关行业：

发布时间：2019-12-19 18:00 浏览人数：人

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    参数
    包装
    • Built-In Web Server
    • 8 Thermocouple Input Channels
    • Supports Types J, K, T, E, N, R, S, B Thermocouples
    • Built-In Cold Junction Compensation and Open Thermocouple Detection
    • 24-Bit Measurement System
    • 8 Digital I/O–User Configurable for Alarms
    • Free Software Included

      • The OM-WEB-TC is a thermocouple measurement device with built-inweb server. Simply connect the device to an Ethernet port or huband view current data using a standard web browser.The OM-WEB-TC’s embedded web interface provides access to currentdata and configuration settings using a standard web browser.Browse to the device’s home page by entering the URL that is printedon the device into the browser. View current thermocouplemeasurements and channel data, and configure hardware optionsfrom the device’s home page. Only one user can change configurationoptions on the device at a time. The web interface is built into thedevice’s firmware, and does not need to be installed on a computer.No external software is required other than a web browser and aTCP/IP connection. Connect the device’s 10Base-T Ethernet port toa local or wide area network using the supplied ethernet cable, to asingle computer through a hub using the supplied ethernet cable, ordirectly to a computer using a standard CAT-5 crossover cable.The web browser used to access the OM-WEB-TC’s web interfacemust support JavaScript.

      The OM-WEB-TC provides 8 thermocouple channels and8 digital I/O channels. The included external power supply (ac adaptor)is used to provide power. On-board LEDs display the status ofcommunications and external power. All hardware configurableoptions are selectable with the web browser or the included Instacalutility software. Network configurable options are settableusing Instacal. When using Instacal, if the login settings have beenchanged from the default, a login name and password are required tochange the configuration settings. The OM-WEB-TC provides8 differential thermocouple input channels. A 24-bit analog-to-digital(A/D) converter is provided for each pair of analog inputs. Thermocoupletypes J, K, T, E, N, R, S, B are supported. The thermocouple typeis software programmable for each channel. Four cold junctioncompensation (CJC) sensors are provided for thermocouplemeasurements. Each CJC sensor is dedicated to two thermocouple inputchannels. An open thermocouple detection feature lets you detect abroken thermocouple. An on-board microprocessor automaticallylinearizes the measurement data.

      The OM-WEB-TC features 8 independent temperature alarms,Each alarm controls an associated digital I/O channel as an alarmoutput. The input to each alarm is one of the temperature inputchannels, the output of each alarm is software configurable as anactive high or low. The user configurable threshold conditionsactivate each alarm. When an alarm is activated, the associatedDIO channel is driven to the active output state selected.Eight digital I/O channels are provided to communicate withexternal devices and to generate alarms. The digital bits are softwareprogrammable for input or output. The digital output voltage is switchselectablefor 3.3V or 5V logic. A screw terminal is provided forpull-up or pull-down configuration.

      The OM-WEB-TC web interface displays current data read from the device and does not log or store historical data. Use the included TracerDAQ software to log or graphically trend your data. The OM-WEB-TC module ships with an impressive array of software,including TracerDAQ®, a full-featured, out-of-the-box data logging, viewing, and analysis application. Driver support and detailed exampleprograms are included for Universal Library programming librariesfor Microsoft® Visual Studio® programming languages, and otherlanguages, including DASYLab®, and ULx for NI LabVIEW®(comprehensive library of VIs and example programs compatible with32-bit and 64-bit LabVIEW 2010 or later) and InstaCalTM installation, calibration and test utility-powerful solutions for programmers and nonprogrammers alike. These modules operate under Microsoft Windows® VISTA/7/8/10 (32-bit and 64-bit) operating systems.

      Specifications
      ANALOG INPUTS
      A/D Converter:       4 dual 24-bit sigma delta A/D converters
      Input Isolation: 500 Vdc min betweenfield wiring and USB interface
      Number of Channels: 8 differential temperature inputs
      Differential Input Voltage Range: ±0.080V
      Absolute Maximum Input Voltage:±25V (power on), ±40V (power off)
      Throughput Rate: 2 samples/secmax for all active channels
      Input Impedance: 5 GΩ min
      Input Leakage Current:105 nA max (with open thermocouple detection enabled)
      Normal Mode Rejection Ratio: 90 dB min
      Common Mode Rejection Ratio: 100 dB min
      Warm-Up Time: 30 minutes max
      Open Thermocouple Detection: 3 sec open detection time (max)
      CJC Sensor Accuracy:-0.75 to 0.5°C max (15 to 35°C);
      -1.5 to 1.25°C max (0 to 55°C)

      DIGITAL I/O
      Number of Digital I/O Channels:       8
      Type: CMOS
      Configuration: Each DIO bit can be independently configured for inputor output.
      Switch selectable output voltages of 5V or 3.3V.
      Power onreset is input mode unless bit is configured for alarm
      Pull-Up/Pull-Down Configuration: All pins are connected to 47 Ωresistors
      (user configurable for pull-up mode to 5V or pulldownmode).
      Digital I/O Transfer Rate (Software Paced):
        Digital Input: 50 port reads or single bit reads persecond (typical)
        Digital Output: 100 port writes or single bit writesper second (typical)
      Input High Voltage: 4.0V min, 5.5V absolute max (5V mode);
      2.64V min, 5.5V absolute max (3.3V mode)
      Input Low Voltage: 1.0V max, -0.3V absolute min (5V mode);
      0.66V max, -0.3V absolute min (3.3V mode)
      Output High Voltage: 4.3V min(5V mode),
      2.7V min (3.3V mode); IOH = -2.5 mA
      Output Low Voltage: 0.6V max (IOL = 2.5 mA)
      Temperature Alarms: 8 (one per digital I/O line)


      NETWORK
      Ethernet Compliance
        Device Type:      IEEE 802.3 Ethernet 10Base-T
        Device Compatibility: IEEE 802.3-2003 10 Mpbs MediaAccess Control
      Ethernet Connection
        Ethernet Type:10Base-T
        Connector:RJ-45, 8 position
        Cable: CAT-5 shielded, unshielded twisted pair
        Length: 100 m (328') max
        MAC Address:00:12:71:Cx:xx:xx where xxxxx is the device's serial number
      Network Factory Default Settings
        IP Address:192.168.0.101
        Subnet Mask:255.255.255.0
        Gateway:192.168.0.1
        DHCP Setting:Enabled
        User Name: "webtc"
        Password:"omega"
        Web Server:Enabled
      Network Protocols
        Protocols Implemented:IP, ARP, ICMP, DHCP, UDP, TCP,NBNS, HTTP
        UDP Messaging Protocol:UDP port 54211
        TCP Downloading Protocol:TCP port 54267
        HTTP 1.0 Alternate Port: TCPport 49152-65535 (not including 54267)
        Network Name: "webtc_xxxxx", where xxxxx isthe device's serial number
        Max Number of Simultaneous HTTP Connections: 3
        Max Number of Non-HTTP TCP Sockets: 5
      Network Security
        Security Implementation:       IP address based session manager with username/password
         login for configuration and controltransactions (data is not secured)
        Session Timeout: 5 min with no activity
        Username/Password Encryption: Base64 (the default web page does not support
        encryption if Javascript is disabled in the web browser)
        Vulnerabilities: Denial of service attacks, username/passwordspoofing,
        script probing and simple decryption

      GENERAL
      Memory      : EEPROM (512 bytes forsensor configuration);
      FLASH (2 MBfor device configuration and websitestorage)
      Microcontroller: One high-performance 8-bit RISC microcontroller and one high-performance 16-bit RISC microcontroller
      Power Supply Voltage (Supplied by Included External Power Supply): 5 Vdc ±5%
      Power Supply Current (Supplied by Included External Power Supply): 440 mA max
      User Output Voltage (5V):4.65V min to 5.25V max
      Dimensions:127 L x 89 W x 36 mm D(5.0 x 3.5 x 1.4")
      Input Connections: Screw terminal blocks (accept 16 to 30 AWG wire)
      Operating Temperature: 0 to 55°C(32 to 131°F), 0 to 90% RH non-condensing
      Storage Temperature: -40 to 85°C (-40 to 185°F)





































































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