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DRI-DC

DRI-DC

分  类：测量测试仪器

品  牌：欧米茄

厂  商：Omega工业测量（中国）

型  号：DRI-DC

相关行业：

发布时间：2019-12-19 16:48 浏览人数：人

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    产品详情
    参数
    包装
    • Field Configurable Input/Output Ranges
    • 1800 Vdc Isolation
    • Touch Calibration Technology
    • High Density DIN Rail Mounting
    • Universal AC Power 85 to 265 Vac

      • The model DRI-DC is an AC powered, DIN rail mount,DC input signal conditioner, with 1800 Vdc isolationbetween input, output and power. It provides a fullyisolated DC output signal in proportion to a DC input.The field configurable input and output feature offersflexible, wide ranging capability for DC current andvoltage signals.

      Using a pushbutton instead of potentiometers,improvements in calibration resolution and reliability arerealized due to the elimination of the potentiometers’mechanical variability. The thermal drift and mechanicalvariability of the potentiometers has been removed andreplaced with a digitally stable circuit. Additionally, theinherent zero and span interactivity of analog amplifiercircuitry is removed, providing 100% non-interactiveadjustment.

      The DRI-DC can be field configured for virtually anyDC input to DC output within the limits specified.Calibration utilizes touch calibration technology wherethe user simply configures the input for the current orvoltage range via switches, then follows the calibrationprocedure. The output is set by adjusting the input untilthe desired output is present and then pressing theCAL button to store the output level.

      The DRI-DC has three diagnostic LEDs. The green(RUN) LED is used for diagnostics to indicate thatpower is on. It will flash quickly if the input signal isabove the calibrated range or slowly if the input signalis below range. It is on continuously when the unit isfunctioning within the calibrated range.

      The DRI-DC can be configured for input ranges from10 mV to 100 V or 1 mA to 100 mA, with >90% inputoffset or will adjust down to <10% of full scale inputspan (except on 20 mV/2 mA range where maximumoffset or gain adjustment is 50%). The factory defaultconfiguration for the DRI-DC is:

      Input Range: 20 mA (current on)
      Input Configuration: Unipolar
      Calibrated Input: 4 to 20 mA
      Operation: Direct (reverse off)
      Calibrated Output: 4 to 20 mA

      Specifications
      INPUT
      Voltage Input:
          Range: 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1V, 2V,5V, 10V, 25V, 50V, 100V (dip-switch selectable)
          Impedance: ≥100 kΩ
          Overvoltage: 200V continuous
      Current Input:
          Range: 2 mA, 5 mA, 10 mA, 20 mA, 50 mA, 100 mA(dip-switch selectable)
          Impedance: 20 Ω typical
          Overcurrent: 170 mA, protected by self-resetting fuse
          Overvoltage: 60V
      Pushbutton Adjustment (Inputs >10 mV):
          Effective Zero Offset: ≥90%
          Effective Span Turn Down: ≥90% except 20 mV/2 mA range in which 50% is max zero offset and span turndown
      OUTPUT
      Voltage Output:
          Range: 0 to 5V, 0 to 10V (dip-switch selectable)
          Source Impedance: <10 Ω
          Drive: 10 mA max
      Current Output:
          Range: 4 to 20 mA, 0 to 1 mA, 0 to 20 mA (dip-switch selectable)
          Source Impedance: >100 kΩ
          Compliance:
              0 to 1 mA: 7.5V max (7.5 kΩ)
              4 to 20 mA: 12V max (600 Ω)
              0 to 20 mA: 12 V max (600 Ω)
      Output Ripple:
          <50% Offset or Span Adjust: <0.1% of full scale span or 25 mV RMS, whichever is greater
          >50% Offset or Span Adjust: <0.2% of full scale span or 50 mV RMS, whichever is greater
      Output Accuracy:
      >2 mA / >20 mV Input Spans: ±0.1% of full-scale inputtypical, ±0.2% maximum
      <2 mA / <20 mV Input Spans: ±0.35% of full scale input typical, ± 0.5% maximum including linearity, repeatability and hysteresis @ 23°C
      Response Time: 200 msec, typical
      Stability: ±0.025% of full scale/°C, maximum for full scale and zero
      Common Mode Rejection: 120 dB at DC, >90 dB at 60 Hz
      Isolation: ≥1800 Vdc or peak AC between input, output, power and channel-to-channel
      ESD Susceptibility: Capable of meeting IEC 801-2 level 3 (8 kV)
      Humidity (Non-Condensing):
          Operating: 15 to 95% RH @ 45°C (113°F)
          Soak: 90% RH for 24 hours @ 60°C (140°F)
      Temperature:
          Operating: 0 to 55°C (32 to 131°F)
          Storage: -25 to 70°C (-13 to 158°F)
      Power: 100 to 240 Vac, ±10%, 50 to 400 Hz; 2.5 W max
      Wire Terminals: Socketed screw terminals for 12 to 22 AWG
      Weight: 227 g (0.5 lb)





























































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