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PT-104A

PT-104A

分  类：其它

品  牌：欧米茄

厂  商：Omega工业测量（中国）

型  号：PT-104A

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发布时间：2019-12-19 18:01 浏览人数：人

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    包装
    • Measures Temperature (RTDs), Resistance and Voltage
    • High Accuracy (0.01°C) and Resolution (0.001°C)
    • Powered by USB Port or Power-Over-Ethernet (PoE)
    • For Use with 2, 3 and 4-Wire Pt100 and Pt1000 RTD Sensors

      • The PT-104A is a four-channel, high-resolution temperature dataacquisition module for use with PT100 and PT1000 RTD sensors.It can also be used to measure resistance (375 Ω and 10,000 Ω ranges) and voltage (115 mV or 2.5 V ranges). In PT100/PT1000/resistance mode, the unit uses a four wire circuit. In voltage mode, the input connector can be treated as a differential input with ground, or two single-ended inputs. Both inputs must be 0V or above, thoughit does not matter which input has the highervoltage. For the 115 mV voltage range, the accuracy may vary by 2%,and the temperature coefficient will be 100 ppm/°C.

      Although accurate temperature sensors are widely available, it hasbeen difficult to take advantage of them due to errors caused by themeasuring device. The PT-104A, however, is designed to be inherentlyaccurate. Rather than relying on voltage references (which tend to betemperature sensitive) it uses ‘reference’ resistors which areextremely stable (low temperature coefficient and drift). The exactvalue of each resistor is stored in an EEPROM to provide the ultimatein accuracy (yearly re-calibration is recommended). To achievethe 0.001°C resolution a highlyadvanced ADC is used that can resolve to better than 1 part in 16 million.

      Temperature
      The PT-104A measures temperature using platinum resistancetemperature sensors (RTDs). Both common industry standards (PT100and PT1000) are supported. The unit is compatible with 2, 3 and 4 wiresensors (4 wire PT100 sensors are recommended for accuratemeasurements).

      Resistance
      When measuring resistance, the unit uses a four-wire circuit to give thegreatest possible accuracy. Two resistance ranges are available(0 to 375 Ω and 0 to 10,000 Ω). The unit is calibrated for 0 to 375 ?so this range should be used for accurate measurements.

      Voltage
      For voltage measurements, each input connector can be treated asa differential input with ground, or two single-ended inputs.Both inputs must be zero volts or above, though it does not matterwhich input has the higher voltage. Two voltage ranges are available(0 to 115 mV and 0 to 2500 mV). For the most accuratemeasurements use the 0 to 2500 mV range

      Remote Data Collection
      The new USB/Ethernet interface allows the logger to be used in avariety of situations: USB-only, USBpoweredwith Ethernet data, and Ethernet data with Power-over-Ethernet (PoE). Using the Ethernet interface, the PT-104A can be located anywhere on a LAN or on the internet.

      Power over Ethernet (PoE)
      The PT-104A can obtain its power from the Ethernet port as a PoweredDevice (PD) according to the PoE standard. To use this feature, you mustconnect the unit to Power Sourcing Equipment (PSE) such as a networkswitch, router or power injector that also supports the PoE standard. Anystandard Ethernet cable up to 100 m (about 328') in length can be used.

      Software
      The PT-104A is supplied with Windows Logging and PlayerSoftware. The software will automatically detect which sensor isconnected and will display readings in the correct units. Also supplied is a software development kit (SDK).The SDK contains a range of software drivers and example codethat you can use to write your own software or to use your PT-104Adata logger with third party software. With the included Logging Softwareyou can set the sampling interval from 1 second to several hours andset the maximum number of readings. You can also tell thePT-104A data acquisition module what do to when the temperaturereadings have been taken—either: stop; repeat immediately (startagain); scroll (oldest recordings disappear); or repeat after delay(where the delay is set by the user). Multiple PT-104A modules can beused simultaneously with the logging software. Also, PT-104Amodules can be mixed with TC-08 thermocouple input modules andused at the same time. Up to 20 units of any kind (PT-104A orTC-08) can be connected.Using the PT-104A loggingsoftware, data can be viewed in a spreadsheet and/or in a graph as itis being recorded. Data collected from previous recordings can alsobe viewed using the Player.

      Specifications
      PT-104A Platinum Resistance Data Logger
       TemperatureResistanceVoltage
          SensorPt1001, Pt1000N/AN/A
          Range-200 to 800°C
      (-328 to 1472°F)      		0 to 375 Ω1
      0 to 10 kΩ      		0 to 115 mV
      0 to 2.5V1
          Linearity20 ppm20 ppm20 ppm
          Accuracy @ 25°C0.01°C120 ppm10.2%1
          Temperature
          Coefficient      		5 ppm/°C5 ppm/°C100 ppm/°C
          RMS Noise
          (Using Filter)      		0.01°C10 ppm10 ppm
          Resolution0.001°C1 µ Ω0.156 µV
          Conversion Time
          Per Channel      		720 mS
          Number of Inputs4
          Connectors4-pin mini DIN
          Input Impedance>>1 MΩ
          Overvoltage Protection±30V
          PowerPowered by USB or Ethernet:
      USB 1.1: 5 V ±10% @ <100 mA
      USB 2.0: 5 V ±10% @ <200 mA
      Ethernet: 48 V ±20% @ <40 mA (<2W)
          Environmental20 to 30°C (68 to 86°F) for stated accuracy,
      0 to 70°C (32 to 158°F) operating,
      20 to 90% RH
          SoftwareLogging Software for 32-bit or 64-bit editions of Windows XP
      (SP2 or greater), Vista, 7.
      Software Development Kit containing drivers and example code for C,
      C++, Excel and LabView.
          Ethernet PortConforms to IEEE 802.3 10Base-T.
      Compatible with 10/100/1000Base-T networks.
      Conforms to IEEE 802.3af Power-over-Ethernet (PoE).
          USB PortConforms to USB 2.0 full-speed (12 Mbps)
          Computer InterfaceUSB or Ethernet
          Dimensions36 H x 135 W x 184 mm D (1.42 x 5.31 x 7.24")
          Weight500 g (1.1 lb)
      1 Quoted accuracy is for options marked



















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