Tel-Tru Explosion Proof Pressure Transmitter, P143
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P143 Explosion-Proof Pressure Transmitter

Brand: Tel-Tru Manufacturing Co.
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The P143 Pressure Transmitter is designed and approved for use in hazardous locations.

The P143’s entirely welded 316L Stainless Steel construction is hermetically sealed making it ideal for the worst of pressure applications. CSA/CUS Explosion Proof certified for Class I Div 1 and Class I Div 2 Groups A, B, C, D.

Automated weld procedures, extreme environmental burn in, and the mounting of our electronics to withstand the most severe shock and vibration applications are all geared toward safety and reliability.

Additional EMI/RFI filtering with surge protection add to the performance of the P143.

For corrosive environments where 316L or 15-5 Stainless Steel are not best suited, the P143 is available in Hasteloy C276, C22 or Inconel® 718.

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Specifications

Brand

Accuracy

  • Static Accuracy: ± 0.1 % of Full Scale Output, Available ≤ 15,000 psi (Includes Improved Zero Balance to 0.5 %)
  • Static Accuracy: ± 0.25 % of Full Scale Output (BFSL, RSS) Combined Effects of Non-Linearity, Hysteresis & Repeatability,
  • Thermal Error: ± 0.5 % of Full Scale Output

Applications

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

Approvals & Certifications

  • CSA, CUS Explosion-proof Class I, Div. 1, Grade A, B, C, D, Class I, Div. 2, Grade A, B, C, D

BSP Connection

  • 1/4”-19 BSPP Female
  • 1/4”-19 BSPP Male
  • G 1/4” Female
  • G 1/4” Male

Burst Pressure

  • 5 times Full Scale

Communication

  • HART

Compensated Temperature

  • -17.8° to 76.7° C (0° to 170° F)

Cone & Thread Connection

  • Autoclave F-250-C Female

Electrical Connectors

  • 1/2” NPT Male Conduit Connection (NEMA 6X) with 2 to 30 feet Wire Pigtail
  • NEMA 4X Cable Exit with 24” (610 mm) Cable

Electrical Protection

  • Short Circuit Protected: up to 40 Vdc - P143A, P143B

Environmental Protection

  • IP66
  • NEMA 4X

Excitation Voltage

  • 16-38 Vdc - P143K
  • 2-15 Vdc - P143C
  • 8-38 Vdc - P143A, P143B

Insulation Resistance

  • 1,000 megaohms at 50 Vdc

Materials of Construction

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

NACE & NIST

  • NIST Traceable Calibration Certificate

NPT Connection

  • 1/2” NPT Female
  • 1/2” NPT Male
  • 1/4” NPT Female
  • 1/4” NPT Male

Operating Temperature

  • -40° to 93° C (-40° to 200° F)

Output

  • 0-10 Vdc - P143K
  • 0-5 Vdc, 3-Wire - P143B
  • 1-2 mV/V (4-Wire) - P143C
  • 4-20 mA DC (2-Wire) - P143A

Power Supply Effect

  • ± 0.002 % of Full Scale Output Per V Input - P143A, P143B

Pressure Range

  • bar: 0 to 1,724
  • kPa: 0 to 172,369
  • psi: 0 to 25,000

Pressure Type

  • Absolute
  • Gauge
  • Sealed Gauge

Proof Pressure

  • 2 x Full Scale

Repeatability

  • ± 0.1 % of Full Scale Output

Resolution

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

Response Time

  • < 1 millisecond - P143C
  • < 5 milliseconds - P143A, P143B

Reverse Polarity Protection

  • Yes

RFI/EMI Protection

  • Internal Filtering - P143A, P143B

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

Update Time

  • Warm-Up: < 10 milliseconds

Wetted Materials

  • 316 Stainless Steel
  • 632 Stainless Steel (15-5)
  • Hastelloy C-276, C22
  • Inconel 718

Zero Balance

  • ± 1 % of Full Scale Output

Documentation

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