NRG BP65 Barometric Pressure Sensor

DETAILS

The NRG BP65 Barometric Pressure Sensor is well-suited for the barometric pressure measurement requirements of remote wind and solar energy studies, particularly as an input to air density and annual energy production calculations. Its durable housing protects the high accuracy sensing element, providing reliable operation in a variety of climates and conditions.

Each BP65 unit undergoes a single-point check to confirm performance within the sensor’s specifications, the results of which are available in a factory verification certificate at no additional cost. A three-point calibration is also available.

The BP65 maintains the proven design of its predecessor, the BP60, ensuring seamless transition to this next generation sensor.

*Please note: BP65C is the calibrated version of this sensor.


Benefits

  • High accuracy at an economical price point
  • Native temperature-compensation allows the sensor to react to internal temperature changes almost immediately
  • Well-suited for remote wind and solar energy studies with low, 1 mA current draw
  • Designed to be a drop-in replacement for the BP60 for seamless transitions
  • Cable lengths up to 110m and an optional up-tower bracket provide flexible mounting options

SPECIFICATION

  1.5M CABLE (#19126) 1.5M CABLE, CALIBRATED (#19127) 67M CABLE (#19128) 90M CABLE (#19129) 110M CABLE (#19130)
Description
Sensor type n/a Analog barometric pressure sensor based on piezo resistive silicon membrane n/a Analog barometric pressure sensor based on piezo resistive silicon membrane Analog barometric pressure sensor based on piezo resistive silicon membrane
Applications n/a
  • Wind and Solar resource assessment and monitoring
  • Meteorological studies
  • Environmental monitoring
 n/a
  • Wind and Solar resource assessment and monitoring
  • Meteorological studies
  • Environmental monitoring
  • Wind and Solar resource assessment and monitoring
  • Meteorological studies
  • Environmental monitoring
Sensor range n/a
  • 500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)
 n/a
  • 500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)
  • 500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)
Signal conditioning module n/a
  • SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC
 n/a
  • SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC
  • SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC
Input signal
Signal type (sensor output) n/a n/a n/a
  • Linear analog voltage
 n/a
Output signal
Signal type n/a
  • Linear analog voltage
 n/a n/a
  • Linear analog voltage
Transfer function n/a
  • Absolute Pressure in hPa = (Voltage x 243.90857 + 493.91990 typical
  • Absolute Pressure in inches Hg = (Voltage x 7.202616) + 14.585446 typical
    Note: Transfer function above applies to 1.5-meter cable. For sensors with cable lengths longer than 1.5 meters, subtract 0.015949406 hPa (0.00047098563 inHg) per additional meter.
 n/a
  • Absolute Pressure in hPa = (Voltage x 243.90857 + 493.91990 typical
  • Absolute Pressure in inches Hg = (Voltage x 7.202616) + 14.585446 typical
    Note: Transfer function above applies to 1.5-meter cable. For sensors with cable lengths longer than 1.5 meters, subtract 0.015949406 hPa (0.00047098563 inHg) per additional meter.
  • Absolute Pressure in hPa = (Voltage x 243.90857 + 493.91990 typical
  • Absolute Pressure in inches Hg = (Voltage x 7.202616) + 14.585446 typical
    Note: Transfer function above applies to 1.5-meter cable. For sensors with cable lengths longer than 1.5 meters, subtract 0.015949406 hPa (0.00047098563 inHg) per additional meter.
Accuracy n/a Uncertainty (k = 2):
  • ± 0.83 hPa (@ 25°C)
  • ± 1.83 hPa (-20 to 40°C)
 n/a Uncertainty (k = 2):
  • ± 1.12 hPa (@ 25°C)
  • ± 2.13 hPa (-20 to 40°C)
 Uncertainty (k = 2):
  • ± 1.12 hPa (@ 25°C)
  • ± 2.13 hPa (-20 to 40°C)
Electrical time constant n/a
  • 1 second
 n/a
  • 1 second
  • 1 second
Calibration n/a
  • Each sensor individually calibrated.
  • A certificate of calibration is available for each individual sensor.
  • Performed at ISO/IEC 17025:2017-certified facility.
  • Traceable to National Institute for Standards and Technology (NIST) standards.
 n/a
  • Each sensor individually tested to meet or exceed published specifications.
    A certificate of quality is available for each individual sensor.
  • Each sensor individually tested to meet or exceed published specifications.
    A certificate of quality is available for each individual sensor.
Output signal range n/a
  • 0.020 to 2.480 VDC
 n/a
  • 0.020 to 2.480 VDC
  • 0.020 to 2.480 VDC
Turn on time n/a
  • < 20 ms
 n/a
  • < 20 ms
  • < 20 ms
Resolution n/a
  • 0.0092 hPa (0.0027 inHg)
 n/a
  • 0.0092 hPa (0.0027 inHg)
  • 0.0092 hPa (0.0027 inHg)
Drift n/a
  • ± 1.0 hPa per year
 n/a
  • ± 1.0 hPa per year
  • ± 1.0 hPa per year
Power requirements
Supply voltage n/a
  • 5 to 15 VDC
  • 5 V pulsed excitation recommended
    Note: When using a 3rd party data logger capable of pulsed excitation operation, please allow a minimum of 25ms settling time between the initial power-up and reading the sensor output voltage.
 n/a
  • 5 to 15 VDC
  • 5 V pulsed excitation recommended
    Note: When using a 3rd party data logger capable of pulsed excitation operation, please allow a minimum of 25ms settling time between the initial power-up and reading the sensor output voltage.
  • 5 to 15 VDC
  • 5 V pulsed excitation recommended
    Note: When using a 3rd party data logger capable of pulsed excitation operation, please allow a minimum of 25ms settling time between the initial power-up and reading the sensor output voltage.
Supply current n/a
  • 1.1 mA with recommended 5 V pulsed excitation,1.3 mA max
 n/a
  • 1.1 mA with recommended 5 V pulsed excitation,1.3 mA max
  • 1.1 mA with recommended 5 V pulsed excitation,1.3 mA max
Installation
Mounting n/a
  • For maximum protection against ingress, place sensor inside data logger shelter box. Recommended but not required.
  • A hose clamp is included with each sensor to mount sensor directly to met tower beneath a data logger shelter box.
  • An optional mounting bracket is sold separately for secure mounting up-tower.
 n/a
  • For maximum protection against ingress, place sensor inside data logger shelter box. Recommended but not required.
  • A hose clamp is included with each sensor to mount sensor directly to met tower beneath a data logger shelter box.
  • An optional mounting bracket is sold separately for secure mounting up-tower.
  • For maximum protection against ingress, place sensor inside data logger shelter box. Recommended but not required.
  • A hose clamp is included with each sensor to mount sensor directly to met tower beneath a data logger shelter box.
  • An optional mounting bracket is sold separately for secure mounting up-tower.
Tools required n/a
  • 8 mm (5/16 inch) nut driver or flat blade screwdriver
 n/a
  • 8 mm (5/16 inch) nut driver or flat blade screwdriver
  • 8 mm (5/16 inch) nut driver or flat blade screwdriver
Accessories n/a
  • BP65 Mounting Bracket available for secure up-tower installations.
 n/a
  • BP65 Mounting Bracket available for secure up-tower installations.
  • BP65 Mounting Bracket available for secure up-tower installations.
Wiring n/a Wire leads:
  • Signal (clear wire)
  • Ground (black wire)Excitation (red wire)
  • Shield wire for earth ground
 n/a Wire leads:
  • Signal (clear wire)
  • Ground (black wire)Excitation (red wire)
  • Shield wire for earth ground
 Wire leads:
  • Signal (clear wire)
  • Ground (black wire)Excitation (red wire)
  • Shield wire for earth ground
Environmental
Operating temperature range n/a
  • -40 to 70°C (-40 to 158°F)
 n/a
  • -40 to 70°C (-40 to 158°F)
  • -40 to 70°C (-40 to 158°F)
Operating humidity range n/a
  • 0 to 100% RH
 n/a
  • 0 to 100% RH
  • 0 to 100% RH
Lifespan n/a
  • 2 years +
 n/a
  • 2 years +
  • 2 years +
Other n/a
  • IP55 Rated
 n/a
  • IP55 Rated
  • IP55 Rated
Physical
Cable length n/a
  • 1.5m (5 ft)
 n/a
  • 90m (295 ft)
  • 110m (361 ft)
Weight n/a
  • 0.12 kg (0.27 lbs)
 n/a
  • 3.41 kg (7.51 lbs)
  • 4.15 kg (9.14 lbs)
Dimensions n/a
  • 55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland
 n/a
  • 55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland
  • 55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland
Materials
Cable n/a
  • 3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket
 n/a
  • 3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket
  • 3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket
Enclosure n/a
  • Weatherproof black ASA
 n/a
  • Weatherproof black ASA
  • Weatherproof black ASA