Pressure Transmitter
Intrinsically Safe, Heavy Duty Pressure Transmitter - Image 2
Intrinsically Safe, Heavy Duty Pressure Transmitter - Image 3
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Pressure Transmitter

Intrinsically Safe, Heavy Duty Pressure Transmitter

PT-400

Made for Harsh Conditions & Hazardous Locations

The PT-400 Intrinsically Safe Heavy Duty Pressure Transmitter is engineered for high-pressure, high-vibration, and hazardous environments. Designed for applications in industries like oilfields, water treatment, and gas compression, this transmitter ensures reliable performance even in extreme conditions. With certifications for CSA (Class 1, Div 1), the PT-400 is ideal for hazardous locations. It features a Modbus RTU output, compatible with any Modbus PLC or controller. The transmitter’s durable construction allows for operating temperatures from -40°F to 185°F, and it supports multiple pressure ranges up to 30,000 psi.

The PT-400 also offers customizable NIST calibration services for accuracy up to ±0.1%, ensuring optimal performance in critical applications. Regular factory re-calibration is recommended for long-term reliability.

  • Intrinsically Safe: Intrinsically Safe for hazardous locations
  • Seamless Integration: Modbus RTU output for easy PLC integration
  • Precision Measurement: High accuracy and pressure range
  • Temperature Stability: Extended temperature compensation

ⓘ

PT-400 Modbus Manual

PT-400 Install Guide
  • Accuracy (linearity, hysteresis, & repeatability): ±0.25% of full scale (BFSL) (1% for ≤ 1 psi)
  • Standard Pressure Ranges: 0 – 30,000 psi
  • Stability – One Year Zero Drift: 17-4 / 316L: <±0.5% FS
  • Overpressure: 2x full scale
  • Burst Pressure: up to 3x full scale or limit of process connection
  • Frequency Response: Less than 5ms
  • Standard Compensated Temp.:
    • ≤ 5 psi: No temp specification
    • 5 < x ≤ 10 psi: 0º – 60ºC / 32º – 140ºF
    • 10 < x ≤ 1000 psi: -10º – 70ºC / 14º – 158ºF
    • > 1000 psi: -17º – 54ºC / 0º – 130ºF
  • Storage Temp: -40º – 82ºC / -40º – 180ºF
  • Operating Temp: -40º – 85ºC / -40º – 185ºF
  • Supply Voltage:
    • 4-20 mA, 0-5 / 0.5-4.5 / 1-5 VDC: 9-28 VDC
    • 0-10 VDC: 12.5-28 VDC
  • Modbus/RTU (RS-485): 9-28 VDC
  • Electrical Connection: Pigtail with cable or connector
  • Electrical Protection: Protected against reverse polarity, surge per IEC 61000-4-5
  • Output:
    • 4-20 mA (2 wire, loop-powered)
    • 0-5, 0.5-4.5, 1-5, 0-10 VDC (non-isolated 3 wire)
    • Modbus/RTU (RS-485) with temp. output
  • Weight: 10 oz. (283 g) typical
  • Wetted Materials:
    • 316L Stainless Steel (≤ 1,000 psi)
    • 17-4 Stainless Steel (> 1,000 psi)
    • Incoloy (> 10,000 psi)
  • Incoloy conforms to NACE MR-01-75 and ISO 15156-3
  • CSA/cCSAus Contract #237484
    • Ambient: -40º to 85ºC / -40º to 185ºF
    • Max. Working Pressure: 10,000 psi
    • Single Seal
    • 0-5 VDC, 0-10 VDC, 4-20mA
      • IS: Class I, Div. 2, Groups C & D; Ex nL IIB T4
      • Class I, Zone 2; AEx nL IIB T4
    • 4-20 mA
      • IS: Class I, Div. 1, Groups C & D; Ex ia IIB T4
      • Class I, Zone 0; AEx ia IIB T4
What applications are suitable for the PT-400 pressure transmitter?

The PT-400 is ideal for applications involving high pressures, hazardous locations, high vibration, and moisture. Common applications include oil and gas industries, water treatment facilities, hydraulic systems, and environments with extreme conditions.

Yes, the PT-400 includes built-in reverse polarity and surge protection compliant with IEC 61000-4-5, making it suitable for outdoor locations such as lift stations, oil rigs, and tank farms.

The PT-400 is certified for use in hazardous locations, including CSA Class 1, Division 1, allowing for use in various industries.

The PT-400 is built to withstand intense vibration common on oil rigs and similar settings, ensuring reliable performance where other pressure transducers may fail.

Yes, the PT-400 offers a Modbus RTU output compatible with any Modbus PLC or controller, facilitating seamless integration into existing systems.

CERTIFICATION

ATEX, CSA – General, IECEx, Intrinsically Safe
OUTPUT

4-20 mA, Modbus, Voltage
INDUSTRY

Chemical, Industrial Automation, Oil & Gas, Water & Wastewater
PRESSURE

0-10,000 psi, 0-30,000 psi

WARRANTY

APG warrants its products to be free from defects in material and workmanship under normal use and service of the product for 24 months from the date of shipment from APG, unless otherwise specified by APG in writing. Read our full warranty policy HERE.

RETURNS

Returns and allowances must be authorized by APG in advance, which authorization may be granted or withheld by APG in APG’s sole and absolute discretion. Read our full return policy HERE.

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