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ENVIROMUX-BPT
ENVIROMUX-BPT

Barometric Pressure Transmitter

NTI Part #: ENVIROMUX-BPT
Determine atmospheric air pressure. Requires the ENVIROMUX-S420MA-24V to operate with ENVIROMUX-2D/5D/16D.
  • Use for determining atmospheric air pressure.
  • Pressure range: 20.8 to 32 in (528 to 813 mm) Hg (10.2 to 15.7 psi (70 to 108 kPa))
  • Accuracy: ±0.14 Hg (±0.07 psi (0.48 kPa))
  • Repeatability: ±0.03 Hg (±0.014 psi (0.097 kPa))
  • Pressure Hysteresis: ±0.02 Hg (±0.01 psi (0.069 kPa))
  • Long-Term Stability: ±.014 Hg/year (±0.007 psi (0.048 kPa)/year)
  • Media compatibility: Clean, dry air and non-corrosive gases
  • Output: 4-20 mA
  • Power requirements: 8-24VDC @ 20 mA
  • Max Loop Resistance: Ohms = (V Supply – 8V)/0.02A
  • Enclosure Material: Acrylonitrile butadiene styrene
  • Dimensions WxDxH: 2.12x3.12x1.78 in (54x79x45 mm)
  • Operating temperature: 32 to 140°F (0 to 60°C)
  • Requires the ENVIROMUX-S420MA-24V to operate with ENVIROMUX-2D/5D/16D.
    • Maximum cable length: 500 ft (152 m).
    • Powered by ENVIROMUX-2D/5D/16D.
  • Regulatory approvals: CE

2-wire cable max distance from ENVIROMUX-S420MA-24V
Cable gauge Max distance
20 AWG 30,000 feet
22 AWG 18,000 feet
24 AWG 11,000 feet
26 AWG 7,000 feet
28 AWG 4,000 feet

Application Notes

  • Sense the Barometric Pressure of an Enclosed Space
    Sense the Barometric Pressure of an Enclosed Space
    The ENVIROMUX-BPT Barometric Pressure Transmitter will sense the barometric pressure levels of the space in which it is located. The ENVIROMUX-BPT is designed for wall mounting in locations that are free of dirt, grease, food particles and condensing moisture such as clean rooms, computer rooms, laboratory type environments, or any air space where changes in barometric pressure must be monitored and controlled.

    When connected to an ENVIROMUX-S420MA-24V 4-20mA Sensor Converter using 2-wire cable, the ENVIROMUX-BPT will sense barometric pressure sending status information to an ENVIROMUX-2D/5D/16D up to 500 feet away from the ENVIROMUX-S420MA-24V. The ENVIROMUX-BPT has a measurement range of 20.8 to 32 in.HG (10.2 to 15.72 psi) with an accuracy of ± 0.14in. HG (0.07 psi). The barometric pressure level can be monitored remotely by connecting to the ENVIROMUX-2D/5D/16D through an Ethernet connection. Additionally, the ENVIROMUX-2D/5D/16D can be configured to send alerts via email, SMS, SNMP, and syslog if pressure levels reach configurable alert values.
  • Trigger an Alarm When the Difference Between Two Air Pressure Readings is Below a Configurable Threshold.
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    Set-up two ENVIROMUX-BPT Barometric Pressure Transmitters in desired separate locations by connecting to the ENVIROMUX-2D/5D/16D through the ENVIROMUX-S420MA-24V 4-20mA Sensor Converter using 2-wire cable. The ENVIROMUX unit can be configured to trigger an alarm when the difference between the readings of both units is below a configurable threshold.