NRG BP65 Barometric Pressure Sensor - Solar

This next generation barometric pressure sensor builds on the NRG BP60’s trusted design, providing accurate measurements and lowering uncertainty.

Configuration Options

#19213 BP65 BAROMETRIC PRESSURE SENSOR, 1.5M CABLE, SOLAR

#19214 BP65 BAROMETRIC PRESSURE SENSOR, 67M CABLE, SOLAR

#19215 BP65 BAROMETRIC PRESSURE SENSOR, 90M CABLE, SOLAR

#19217 BP65 BAROMETRIC PRESSURE SENSOR, 1.5M CABLE, CALIBRATED, SOLAR

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

Success Stories (4)

Brochures (1)

Brochure: BP65 Barometric Pressure Sensor

Success Stories (4)

Quick Guide Videos (1)

Using a Strain Relief

Instruction Sheets (2)

Technical Product Sheets (1)

Technical Product Sheet: NRG BP65 Barometric Pressure Sensor

Applications

Solar Resource Monitoring

Solar Resource Assessment

Recommended Items

Hose Clamps - Solar

Mounting Bracket | BP65

Specificiations Print Specs

	BP65 BAROMETRIC PRESSURE SENSOR, 1.5M CABLE, SOLAR (#19213)	BP65 BAROMETRIC PRESSURE SENSOR, 67M CABLE, SOLAR (#19214)	BP65 BAROMETRIC PRESSURE SENSOR, 90M CABLE, SOLAR (#19215)	BP65 BAROMETRIC PRESSURE SENSOR, 1.5M CABLE, CALIBRATED, SOLAR (#19217)
Description
Sensor type	Analog barometric pressure sensor based on piezo resistive silicon membrane	Analog barometric pressure sensor based on piezo resistive silicon membrane	Analog barometric pressure sensor based on piezo resistive silicon membrane	Analog barometric pressure sensor based on piezo resistive silicon membrane
Applications	Wind and Solar resource assessment and monitoring Meteorological studies Environmental monitoring	Wind and Solar resource assessment and monitoring Meteorological studies Environmental monitoring	Wind and Solar resource assessment and monitoring Meteorological studies Environmental monitoring	Wind and Solar resource assessment and monitoring Meteorological studies Environmental monitoring
Sensor range	500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)	500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)	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	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	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
Output signal
Signal type	Linear analog voltage	Linear analog voltage	Linear analog voltage	Linear analog voltage
Transfer function	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 243.89926 + 494.73295 typical Absolute Pressure in inches Hg = (Voltage x 7.202341) + 14.609455 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 243.89926 + 494.73295 typical Absolute Pressure in inches Hg = (Voltage x 7.202341) + 14.609455 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.	Please refer to your calibration report.
Accuracy	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)	Uncertainty (k = 2): ± 1.12 hPa (@ 25°C) ± 2.13 hPa (-20 to 40°C)	Uncertainty (k = 2): ± 0.83 hPa (@ 25°C) ± 1.83 hPa (-20 to 40°C)
Electrical time constant	1 second	1 second	1 second	1 second
Calibration	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.	Each sensor individually tested to meet or exceed published specifications. A certificate of quality is available for each individual sensor.	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.
Output signal range	0.020 to 2.480 VDC	0.020 to 2.480 VDC	0.020 to 2.480 VDC	0.020 to 2.480 VDC
Turn on time	< 20 ms	< 20 ms	< 20 ms	< 20 ms
Resolution	0.0092 hPa (0.0027 inHg)	0.0092 hPa (0.0027 inHg)	0.0092 hPa (0.0027 inHg)	0.0092 hPa (0.0027 inHg)
Drift	± 1.0 hPa per year	± 1.0 hPa per year	± 1.0 hPa per year	± 1.0 hPa per year
Power requirements
Supply 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.	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.	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	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	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	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.	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	8 mm (5/16 inch) nut driver or flat blade screwdriver	8 mm (5/16 inch) nut driver or flat blade screwdriver	8 mm (5/16 inch) nut driver or flat blade screwdriver	8 mm (5/16 inch) nut driver or flat blade screwdriver
Accessories	BP65 Mounting Bracket available for secure up-tower installations.	BP65 Mounting Bracket available for secure up-tower installations.	BP65 Mounting Bracket available for secure up-tower installations.	BP65 Mounting Bracket available for secure up-tower installations.
Wiring	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	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	-40 to 70°C (-40 to 158°F)	-40 to 70°C (-40 to 158°F)	-40 to 70°C (-40 to 158°F)	-40 to 70°C (-40 to 158°F)
Operating humidity range	0 to 100% RH	0 to 100% RH	0 to 100% RH	0 to 100% RH
Lifespan	2 years +	2 years +	2 years +	2 years +
Other	IP55 Rated	IP55 Rated	IP55 Rated	IP55 Rated
Physical
Cable length	1.5m (5 ft)	67m (220 ft)	90m (295 ft)	1.5m (5 ft)
Weight	0.12 kg (0.27 lbs)	2.55 kg (5.63 lbs)	3.41 kg (7.51 lbs)	0.12 kg (0.27 lbs)
Dimensions	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	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	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	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	Weatherproof black ASA	n/a	Weatherproof black ASA	Weatherproof black ASA

Description

Sensor type

Analog barometric pressure sensor based on piezo resistive silicon membrane

Applications

Wind and Solar resource assessment and monitoring
Meteorological studies
Environmental monitoring

Sensor range

500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)

Signal conditioning module

SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC

Output signal

Signal type

Linear analog voltage

Transfer function

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

Uncertainty (k = 2):

± 1.12 hPa (@ 25°C)
± 2.13 hPa (-20 to 40°C)

Electrical time constant

1 second

Calibration

Each sensor individually tested to meet or exceed published specifications.
A certificate of quality is available for each individual sensor.

Output signal range

0.020 to 2.480 VDC

Turn on time

< 20 ms

Resolution

0.0092 hPa (0.0027 inHg)

Drift

± 1.0 hPa per year

Power requirements

Supply 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

1.1 mA with recommended 5 V pulsed excitation,1.3 mA max

Installation

Mounting

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

8 mm (5/16 inch) nut driver or flat blade screwdriver

Accessories

BP65 Mounting Bracket available for secure up-tower installations.

Wiring

Wire leads:

Signal (clear wire)
Ground (black wire)Excitation (red wire)
Shield wire for earth ground

Environmental

Operating temperature range

-40 to 70°C (-40 to 158°F)

Operating humidity range

0 to 100% RH

Lifespan

2 years +

Other

IP55 Rated

Physical

Cable length

1.5m (5 ft)

Weight

0.12 kg (0.27 lbs)

Dimensions

55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland

Materials

Cable

3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket

Enclosure

Weatherproof black ASA

Description

Sensor type

Analog barometric pressure sensor based on piezo resistive silicon membrane

Applications

Wind and Solar resource assessment and monitoring
Meteorological studies
Environmental monitoring

Sensor range

500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)

Signal conditioning module

SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC

Input signal

Signal type (sensor output)

Linear analog voltage

Output signal

Signal type

Linear analog voltage

Transfer function

Absolute Pressure in hPa = (Voltage x 243.89926 + 494.73295 typical
Absolute Pressure in inches Hg = (Voltage x 7.202341) + 14.609455 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

Uncertainty (k = 2):

± 1.12 hPa (@ 25°C)
± 2.13 hPa (-20 to 40°C)

Electrical time constant

1 second

Calibration

Each sensor individually tested to meet or exceed published specifications.
A certificate of quality is available for each individual sensor.

Output signal range

0.020 to 2.480 VDC

Turn on time

< 20 ms

Resolution

0.0092 hPa (0.0027 inHg)

Drift

± 1.0 hPa per year

Power requirements

Supply 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

1.1 mA with recommended 5 V pulsed excitation,1.3 mA max

Installation

Mounting

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

8 mm (5/16 inch) nut driver or flat blade screwdriver

Accessories

BP65 Mounting Bracket available for secure up-tower installations.

Wiring

Wire leads:

Signal (clear wire)
Ground (black wire)Excitation (red wire)
Shield wire for earth ground

Environmental

Operating temperature range

-40 to 70°C (-40 to 158°F)

Operating humidity range

0 to 100% RH

Lifespan

2 years +

Other

IP55 Rated

Physical

Cable length

67m (220 ft)

Weight

2.55 kg (5.63 lbs)

Dimensions

55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland

Materials

Cable

3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket

Description

Sensor type

Analog barometric pressure sensor based on piezo resistive silicon membrane

Applications

Wind and Solar resource assessment and monitoring
Meteorological studies
Environmental monitoring

Sensor range

500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)

Signal conditioning module

SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC

Input signal

Signal type (sensor output)

Linear analog voltage

Output signal

Signal type

Linear analog voltage

Transfer function

Absolute Pressure in hPa = (Voltage x 243.89926 + 494.73295 typical
Absolute Pressure in inches Hg = (Voltage x 7.202341) + 14.609455 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

Uncertainty (k = 2):

± 1.12 hPa (@ 25°C)
± 2.13 hPa (-20 to 40°C)

Electrical time constant

1 second

Calibration

Each sensor individually tested to meet or exceed published specifications.
A certificate of quality is available for each individual sensor.

Output signal range

0.020 to 2.480 VDC

Turn on time

< 20 ms

Resolution

0.0092 hPa (0.0027 inHg)

Drift

± 1.0 hPa per year

Power requirements

Supply 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

1.1 mA with recommended 5 V pulsed excitation,1.3 mA max

Installation

Mounting

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

8 mm (5/16 inch) nut driver or flat blade screwdriver

Accessories

BP65 Mounting Bracket available for secure up-tower installations.

Wiring

Wire leads:

Signal (clear wire)
Ground (black wire)Excitation (red wire)
Shield wire for earth ground

Environmental

Operating temperature range

-40 to 70°C (-40 to 158°F)

Operating humidity range

0 to 100% RH

Lifespan

2 years +

Other

IP55 Rated

Physical

Cable length

90m (295 ft)

Weight

3.41 kg (7.51 lbs)

Dimensions

55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland

Materials

Cable

3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket

Enclosure

Weatherproof black ASA

Description

Sensor type

Analog barometric pressure sensor based on piezo resistive silicon membrane

Applications

Wind and Solar resource assessment and monitoring
Meteorological studies
Environmental monitoring

Sensor range

500 hPa to 1100 hPa (14.765 to 32.483 inches Hg)

Signal conditioning module

SymphoniePRO: P-SCM #9130, 0 to 5 V, SE Input, Pulsed 5V EXC

Output signal

Signal type

Linear analog voltage

Transfer function

Please refer to your calibration report.

Accuracy

Uncertainty (k = 2):

± 0.83 hPa (@ 25°C)
± 1.83 hPa (-20 to 40°C)

Electrical time constant

1 second

Calibration

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.

Output signal range

0.020 to 2.480 VDC

Turn on time

< 20 ms

Resolution

0.0092 hPa (0.0027 inHg)

Drift

± 1.0 hPa per year

Power requirements

Supply 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

1.1 mA with recommended 5 V pulsed excitation,1.3 mA max

Installation

Mounting

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

8 mm (5/16 inch) nut driver or flat blade screwdriver

Accessories

BP65 Mounting Bracket available for secure up-tower installations.

Wiring

Wire leads:

Signal (clear wire)
Ground (black wire)Excitation (red wire)
Shield wire for earth ground

Environmental

Operating temperature range

-40 to 70°C (-40 to 158°F)

Operating humidity range

0 to 100% RH

Lifespan

2 years +

Other

IP55 Rated

Physical

Cable length

1.5m (5 ft)

Weight

0.12 kg (0.27 lbs)

Dimensions

55 mm (2.15") diameter x 101 mm (4.0") tall including cable gland

Materials

Cable

3 conductor 22 AWG, with overall foil shield and drain wire, PVC jacket

Enclosure

Weatherproof black ASA

Product Support

Quick Guide Videos (1)

Quick Guide Videos

Using a Strain Relief

Some tips and techniques to help with passing wires through a strain relief.

Read More

Instruction Sheets (2)

Technical Product Sheets (1)

Technical Product Sheets

Technical Product Sheet: NRG BP65 Barometric Pressure Sensor

The BP65 is well-suited for the barometric pressure measurement requirements of wind and solar energy studies, particularly as an input to air density, annual energy production estimates, and more reliable forecasts on operational solar and wind farms.

Download pdf (234 KB)

Customer Service

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NRG BP65 Barometric Pressure Sensor - Solar

Configuration Options

Details

Benefits

Success Stories (4)

Brochures (1)

Success Stories (4)

Quick Guide Videos (1)

Instruction Sheets (2)

Technical Product Sheets (1)

Applications

Solar Resource Monitoring

Solar Resource Assessment

Recommended Items

Hose Clamps - Solar

Mounting Bracket | BP65

Specificiations Print Specs

Product Support

Quick Guide Videos (1)

Using a Strain Relief

Instruction Sheets (2)

Flare SRA System Installation Guide

NRG BP65 Barometric Pressure Sensor Instructions

Technical Product Sheets (1)

Technical Product Sheet: NRG BP65 Barometric Pressure Sensor

Customer Service

+1 802-482-2255