Tel-Tru Submersible Pressure Transmitter, P431
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P431 Submersible Pressure Transmitter

Brand: Tel-Tru Manufacturing Co.
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Key features of the P431 are its long term stability, internal protection from lightning via dual gas discharge tubes, internal EMI/RFI filtering, double sealed cable exit and a maintenance free vent filter.

Every P431 is built using advanced manufacturing techniques to ensure the integrity of the waterproof seal.

Double sealing techniques are used and automated welding procedures and extreme environmental burn in, along with the internal protection against the harsh well conditions give customers the confidence of product reliability over time.

From 0-5 Feet H₂O through 0-1,500 Feet H₂O, the P431 is available in either a 4-20 mA or 0-5 Vdc output signal. For remote or battery powered systems, a low power option is available from a 5 Vdc, 1.5 mA supply.

To futher enhance battery life, warm-up time is less than 3 Milliseconds. Other options include alternate materials of construction or Tefzel cable.

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Specifications

Brand

Accuracy

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

Applications

  • Coal Bed Methane
  • Irrigation
  • Level & Depth Measurement
  • Underground Storage
  • Water Resource
  • Well Water

Approvals & Certifications

  • CE EN 50081-2, EN 50082-2

Burst Pressure

  • 5 times Full Scale

Cable Material

  • Polyurethane
  • Tefzel

Cap Material

  • Pressure Port: PVC
  • Stainless Steel

Compensated Temperature

  • -17.8° to 76.7° C (0° to 170° F)

Electrical Connectors

  • Submersible Cable Exit with 10 to 50 feet Vented Polyurethane & Tefzel Cable

Electrical Protection

  • Lightning Protection: Dual Gas Discharge Tube
  • Short Circuit Protected: up to 40 Vdc

Enclosure, Body Material

  • 316L Stainless Steel
  • 632 Stainless Steel (15-5)

Excitation Voltage

  • 8-38 Vdc

Insulation Resistance

  • 1,000 megaohms at 50 Vdc

NACE & NIST

  • NIST Traceable Calibration Certificate

Operating Temperature

  • -40° to 93° C (-40° to 200° F)

Output

  • 0.5 - 4.5 Vdc - P431J
  • 0-5 Vdc, 3-Wire - P431B
  • 4-20 mA, 2-Wire - P431A

Power Supply Effect

  • ± 0.002 % of Full Scale Output Per V Input

Pressure Range

  • bar: 0 to 51.7
  • Feet WC: 0 to 1,500
  • kPa: 0 to 5,171
  • psi: 0 to 750

Pressure Type

  • Gauge

Process Connection Material

  • Sludge Nose: Stainless Steel

Proof Pressure

  • 2 x Full Scale

Repeatability

  • ± 0.05 % of Full Scale Output

Resolution

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

Response Time

  • < 5 milliseconds

Reverse Polarity Protection

  • Yes

RFI/EMI Protection

  • Internal Filtering

Stability

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

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)]

UNF/UNC Connection

  • 7/16”-20 UNF Male with PVC Cap (> 15 psi)
  • 7/8”-14 UNF Male with PVC Cap (< 15 psi)

Update Time

  • Warm-Up: < 3 milliseconds

Zero Balance

  • ± 1 % of Full Scale Output

Documentation

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