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P531 Differential Pressure Transmitter

Brand: Tel-Tru Manufacturing Co.

The P531 differential pressure transmitter is designed for End Users and OEMs where high overpressure protection [psi: 1,000 (kPa: 6,895, bar: 68.95)] ruggedness, high performance, and reliability are required at a competitive price.

This product is modular and is configurable to meet our customers' exact needs. Every P531 is built using advanced manufacturing techniques to ensure symmetry between the HI and LO ports.

Symmetry, along with automated welding procedures and extreme environmental burn-in, give Tel-Tru’s differential pressure products excellent performance and reliability over time and at high elevated line pressure.

The P531 pressure port's all welded 316 Stainless Steel ‘O’-Ring free design makes it ideal for high cyclical applications, capillary filled systems, or applications where a guaranteed leak free system is needed.

Specifications

Accuracy

  • ± 0.1 % of Full Scale Output
  • ± 0.25 % of Full Scale Output (BFSL, RSS) Combined Effects of Non-Linearity, Hysteresis & Repeatability,

Applications

  • Hydraulic Applications
  • Laboratory & Test Equipment
  • Marine & Offshore Applications
  • Petrochemical
  • Pneumatics
  • Pump & Compressors

Burst Pressure

  • psi: 3,000 (kPa: 20,680, bar: 206.8)

Compensated Temperature

  • -17.8° to 76.7° C (0° to 170° F)

Consumption

  • Low Power Consumption: < 2 mA

Electrical Connectors

  • 1/2” NPT Male Conduit Connection with 2 to 50 feet Wire Pigtail
  • 6-Pin Bendix
  • Mini DIN 43650C Connector with Mate
  • NEMA 4X Cable Exit with 24” (610 mm) Cable
  • Pigtail Connector (2, 5, 10, 20, 30, 50 feet Wire)

Electrical Protection

  • Short Circuit Protected: up to 40 Vdc

Environmental Protection

  • IP66
  • NEMA 4X

Excitation Voltage

  • 16-38 Vdc - P531K
  • 8-38 Vdc

Flange Material

  • Process Flange: 316L Stainless Steel

Insulation Resistance

  • 1,000 megaohms at 50 Vdc

Line Pressure

  • psi: 1,000 (kPa: 6,895, bar: 68.95)
  • psi: 2,000 (kPa: 13,790, bar: 137.9)

Materials of Construction

  • Non-Wetted Part: 316L Stainless Steel & Electrical Connector

Mounting Position Effect

  • Zero Shifts up to 1” H₂O Depending on Orientation

NACE & NIST

  • NACE

NPT Connection

  • 1/4” NPT Female
  • 1/4” NPT Male
  • 1/8” NPT Female

O-Ring Material

  • Welded 316 Stainless Steel

Operating Temperature

  • -40° to 93° C (-40° to 200° F)

Output

  • 0-10 Vdc - P531K
  • 0-5 Vdc, 3-Wire - P531B
  • 1-2 mV/V (4-Wire) - P531C
  • 4-20 mA, 2-Wire - P531A

Power Supply Effect

  • ± 0.002 % of Full Scale Output Per V Input

Pressure Range

  • bar: 0 to 6.895
  • Inches WC: 0 to 750
  • kPa: 0 to 689.5
  • psid: 0 to 100

Pressure Type

  • Differential (Uni-Directional, Bi-Directional)

Proof Pressure

  • psi: 1,000 (kPa: 6,895, bar: 68.95) [Either Port]

Repeatability

  • ± 0.05 % of Full Scale Output

Resolution

  • Infinite (± 0.001 % of Full Scale Output Usable)

Response Time

  • < 10 milliseconds

Reverse Polarity Protection

  • Yes

RFI/EMI Protection

  • Internal Filtering

Stability

  • Long Term Stability: ± 0.25 % of Full Scale Output Per Year

Static Pressure Effect

  • On Span: ± 0.5 % of Reading Per psi: 1,000 (kPa: 6,895, bar: 68.95)
  • On Zero: ± 0.25 % of Full Scale Output Per psi: 1,000 (kPa: 6,895, bar: 68.95)

Storage Temperature

  • -40° to 121° C (-40° to 250° F)

Temperature Effect

  • ± 1.5 % of Full Scale Output over Compensated Range [Combined Effects of Zero & Full Scale Output with Reference at 21° C (70° F)]

Update Time

  • Warm-Up: < 10 milliseconds

Wetted Materials

  • 316L Stainless Steel
  • Hastelloy C-276
  • Inconel

Zero Balance

  • ± 1 % of Full Scale Output
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