Differential Pressure Transmitter

  • 3051-Style Differential Pressure Transmitter
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SmartMeasurement’s ALDPT-3051 is an intelligent differential pressure transmitter which makes use of advanced microprocessor technology with digital communications. The ALPDT-3051 smart pressure transmitter is capable of differential, gauge, or absolute pressure measurement. It uses advanced capacitive sensor technology (piezoresistive sensors for absolute pressure models), and features self-diagnostics, field parameter adjustment, auto-zeroing and a variety of popularly used communication protocols at industry leading prices. The ALDPT-3051 smart pressure transmitter can utilize either traditional flanges or any other industry standard process connection for pressure, flow and level applications. Available outputs include 1-5VDC or 4-20mA with HART protocol, Profibus, or FOUNDATION fieldbus. The ALPDT-3051 smart pressure transmitter is available in a wide variety of configurations to make it suitable for almost any application.

  • High accuracy, minimal temperature drift
  • 100:1 Turn-down
  • Advanced diagnostics capabilities
  • Large measuring range
  • Software compensation
  • Available in 316SS, Tantalum and other exotic materials
  • Available in either Intrinsically Safe ExibIICT6 or Explosion Proof ExdIICT6
  • Auto-zero adjustment
  • Analog 4~20 mA DC two wire linear output
  • HART protocol, Profibus, or FOUNDATION fieldbus available
Differential Pressure Measuring Range: 0~0.16 kPa to 0~10 Mpa
Absolute Pressure Measuring Range: max. 0~25 MPa , min. 0~20 Kpa
Relative Pressure Measuring Range: max 0~40 MPa min 0~0.16 Kpa
Fluids: liquid, gas and steam
Operating Temperature : –40 °C ~100 °C
Accuracy Grades: 0.075, 0.2, 0.5 of reading
Temperature Drift (zero): 0.5%FS / 50 °C
Turn-down: 100:1
Temperature Drift (span): 0.7%FS/50 °C
Drift (Micro): 0.02%FS/year
Relative humidity: 0~100% RH
Drift (Standard): 0.025%FS/year
Protection: IP 67
O-ring material: Fluorine rubber, nitrile rubber (standard)
Storage Temperature: -40 ~ 100 °C
Output Signal: 4~20 mADC, two wire
Weight: 3.5 kg (not including options or hardware)
Start time: 2 seconds after power up
Damping time: 2s
Approvals: ExdIIBT5 or ExdIICT6
Fill Fluid: Silicone oil or inert oil
Body & Bolt Material: stainless steel
Elecrical Enclosure Material: Low Copper Alumimium Alloy
Supply Voltage: 16.4-45 VDC (standard), 16.4-30 VDC (intrinsically safe type)
Communications distance: 2 km when using CEV cable
Resolution: 0.05% of range
Effect of supply voltage variation: 0.005% FS/V

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