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NOSHOK 621 Series Explosion-Proof Pressure Transmitters

NOSHOK 621 Series Explosion-Proof Pressure Transmitters are designed for use in hazardous locations and meet explosion-proof and dust ignition-proof standards. This NOSHOK pressure transmitter series offers vacuum and compound ranges from 0psig to 15,000psig and absolute ranges from 0psia to 15psia and from 0psia to 100psia. The 621 series features 316 Stainless Steel and Elgiloy wetted parts that are NACE MR0175/ISO 15156-compliant and ANSI/ISA-12.27.01-approved single-seal. Applications include chemical processing, gas pressure measurement, oil field and offshore, mining, and well head measurement.

Features

  • 0psig to 15,000psig vacuum and compound ranges
  • 0psia to 15psia through 0psia to 100psia absolute ranges
  • Current and voltage outputs available
  • 316 Stainless Steel and Elgiloy wetted parts
  • NACE MR0175/ISO 15156 compliant
  • ANSI/ISA-12.27.01-approved single seal

Applications

  • Chemical processing
  • Gas pressure measurement
  • Oil field and offshore
  • Mining
  • Well head measurement

Specifications

  • Output signals
    • 4mA to 20mA, 2-wire
    • 1VDC to 5VDC, 3-wire
    • 0.5VDC to 4.5VDC, 3-wire
  • ±0.25% full scale (BFSL) accuracy (includes the effects of non-linearity, hysteresis, non-repeatability, zero point, and full-scale errors)
  • ≤±0.2% full-scale stability for 1 year, non-accumulating
  • ≤1ms response time (between 10% and 90% full scale)
  • >100 million load cycles
  • Temperature ranges
    • 0°C to +80°C (compensate)
    • ±0.011% full scale/°F (zero effect)
    • ±0.011% full scale/°F (span effect)
    • Media
      • -40°C to +55°C (T6)
      • -40°C to +70°C (T5)
      • -40°C to +100°C (T4)
    • Ambient
      • -40°C to +60°C (T6)
      • -40°C to +75°C (T5)
      • -40°C to +105°C (T4)
    • -40°C to +105°C (storage)
  • Power requirement
    • 10VDC to 30VDC (4mA to 20mA, 2-wire)
    • 6VDC to 30VDC (1VDC to 5VDC, 3-wire)
    • 5VDC to 30VDC (0.5VDC to 4.5VDC, 3-wire)
    • 14VDC to 30VDC (0VDC to 10VDC, 3-wire)
  • Proof pressure
    • 3x full scale 0psi to 15psi through 0psi to 200psi
    • 1.75x full scale 0psi to 300psi through 0psi to 10,000psi
    • 1.5x full scale 0psi to 15,000psi
  • Burst pressure
    • 3.8x full scale 0psi to 15psi through 0psi to 200psi
    • 4x full scale 0psi to 300psi through 0psi to 10,000psi
    • 3x full scale 0psi to 15,000psi
  • IP67/NEMA 4x environmental rating

Part Numbering Guide

Chart - NOSHOK 621 Series Explosion-Proof Pressure Transmitters

Dimensions

Mechanical Drawing - NOSHOK 621 Series Explosion-Proof Pressure Transmitters
Đã phát hành: 2026-05-13 | Đã cập nhật: 2026-05-13