NRG RH5X Relative Humidity Sensor

The RH5X is a low-cost continuous measurement relative humidity sensor.

Details

The NRG RH5X sensor is compatible with NRG's suite of data loggers, including all Symphonie series data loggers when equipped with an NRG iPack and either a (SCM #3156, used with and older) or a Pro Signal Conditioning Module (P-SCM #9132, used with SymphoniePRO® Data Logger - Wind when channels 16-19 are unavailable).

The RH5X features a polymer resistor sensor, which provides excellent linearity and sensitivity with fast response time and long-term stability. It mounts to the underside of a shelter box and includes 1.5 m (5’) of cable, a mounting bracket, and one hose clamp.

A calibrated version, the RH5XC, is available. The RH5XC comes with a calibration certificate from a NIST-traceable humidity chamber, providing slope and offset values that can be used to configure your corresponding logger channel.

Quick Guide Videos (1)

RH5X Relative Humidity Sensor | Initial Setup

Instruction Sheets (1)

Testing RH5X Relative Humidity Sensor

FAQs (5)

Technical Product Sheets (2)

Applications

Wind Resource Assessment

Specifications Print Specs

Description
	RH5X RELATIVE HUMIDITY SENSOR (#4415)	RH5XC RELATIVE HUMIDITY SENSOR (#8811)
Sensor type	Polymer capacitor humidity sensor	Polymer capacitor humidity sensor
Applications	Wind resource assessment Meteorological studies Environmental monitoring	Wind resource assessment Meteorological studies Environmental monitoring
Sensor range	0 to 100% relative humidity (non-condensing)	0 to 100% relative humidity (non-condensing)
Instrument compatibility	Any Symphonie Data Logger	Any Symphonie Data Logger
Output signal
Signal type	3-wire 0-5V/10V(4), 3-wire or 2-wire 4-20mA (Selectable)	Linear analog voltage
Transfer function	% Relative Humidity = Voltage x 20	Refer to individual calibration supplement for sensor-specific transfer function Default values: % Relative Humidity = Voltage x 20
Accuracy	+/- 2% RH typical from 20% to 80% RH @ 5 to 60°C (41 to 140°F) +/- 3% RH Max from 0 to 100% RH Contact Technical Support for information on additional uncertainty due to temperature effects.	+/- 2% RH typical from 20% to 80% RH @ 5 to 60°C (41 to 140°F) +/- 3% RH Max from 0 to 100% RH Contact Technical Support for information on additional uncertainty due to temperature effects.
Calibration	Sensors not individually calibrated.	NIST-traceable calibration performed to verify individual sensor performs within specified accuracy limits.
Output signal range	0 to 5V for 0 to 100% RH	0 to 5V for 0 to 100% RH
Power requirements
Supply voltage	12 to 30 VDC	12 to 30 VDC
Supply current	5 mA Max	5 mA Max
Installation
Mounting	Uses a sheet metal bracket with a hose clamp, to be mounted to the tower, under the shelter box	Uses a sheet metal bracket with a hose clamp, to be mounted to the tower, under the shelter box
Tools required	8 mm (5/16 inch) nut driver or wrench	8 mm (5/16 inch) nut driver or wrench
Environmental
Operating temperature range	41 to 140°F (5 to 60°C) @ 20% to 80% RH	-40°C to 70°C (-40°F to 158°F)
Operating humidity range	0 to 100% relative humidity (non-condensing)	0 to 100% relative humidity (non-condensing)
Other	IP55 Rated Recommended range of operation is 5 to 60°C and 20 to 80% humidity. Longterm exposure to conditions outside this range may temporarily offset RH measurements (approximately 3% after 60 hours).	IP55 Rated Recommended range of operation is 5 to 60°C and 20 to 80% humidity. Longterm exposure to conditions outside this range may temporarily offset RH measurements (approximately 3% after 60 hours).
Physical
Connections	Wire leads, 3 conductor shielded cable: Red: Power Black: Ground White: Signal out Braid: Shield	Wire leads, 3 conductor shielded cable: Red: Power Black: Ground White: Signal out Braid: Shield
Cable length	1.5 m (5 feet)	1.5 m (5 feet)
Weight	0.320 kg (0.71 lbs)	0.320 kg (0.71 lbs)
Dimensions	190 mm (7.5 inches) x 113 mm (4.4 inches) x 69 mm (2.7 inches)	190 mm (7.5 inches) x 113 mm (4.4 inches) x 69 mm (2.7 inches)
Materials
Cable	3 conductor 22 AWG, with overall foil shield and drain wire, chrome PVC jacket	3 conductor 22 AWG, with overall foil shield and drain wire, chrome PVC jacket
Enclosure	UV stabilized plastic box with aluminum mounting bracket	UV stabilized plastic box with aluminum mounting bracket

Description

Sensor type

Polymer capacitor humidity sensor

Applications

Wind resource assessment
Meteorological studies
Environmental monitoring

Sensor range

0 to 100% relative humidity (non-condensing)

Instrument compatibility

Any Symphonie Data Logger

Output signal

Signal type

3-wire 0-5V/10V(4), 3-wire or 2-wire 4-20mA (Selectable)

Transfer function

% Relative Humidity = Voltage x 20

Accuracy

+/- 2% RH typical from 20% to 80% RH @ 5 to 60°C (41 to 140°F)
+/- 3% RH Max from 0 to 100% RH
Contact Technical Support for information on additional uncertainty due to temperature effects.

Calibration

Sensors not individually calibrated.

Output signal range

0 to 5V for 0 to 100% RH

Power requirements

Supply voltage: 12 to 30 VDC
Supply current: 5 mA Max

Installation

Mounting: Uses a sheet metal bracket with a hose clamp, to be mounted to the tower, under the shelter box
Tools required: 8 mm (5/16 inch) nut driver or wrench

Environmental

Operating temperature range

41 to 140°F (5 to 60°C) @ 20% to 80% RH

Operating humidity range

0 to 100% relative humidity (non-condensing)

Other

IP55 Rated
Recommended range of operation is 5 to 60°C and 20 to 80% humidity. Longterm exposure to conditions outside this range may temporarily offset RH measurements (approximately 3% after 60 hours).

Physical

Connections

Wire leads, 3 conductor shielded cable:

Red: Power
Black: Ground
White: Signal out
Braid: Shield

Cable length

1.5 m (5 feet)

Weight

0.320 kg (0.71 lbs)

Dimensions

190 mm (7.5 inches) x 113 mm (4.4 inches) x 69 mm (2.7 inches)

Materials

Cable: 3 conductor 22 AWG, with overall foil shield and drain wire, chrome PVC jacket
Enclosure: UV stabilized plastic box with aluminum mounting bracket

Description

Sensor type

Polymer capacitor humidity sensor

Applications

Wind resource assessment
Meteorological studies
Environmental monitoring

Sensor range

0 to 100% relative humidity (non-condensing)

Instrument compatibility

Any Symphonie Data Logger

Output signal

Signal type

Linear analog voltage

Transfer function

Refer to individual calibration supplement for sensor-specific transfer function
Default values: % Relative Humidity = Voltage x 20

Accuracy

+/- 2% RH typical from 20% to 80% RH @ 5 to 60°C (41 to 140°F)
+/- 3% RH Max from 0 to 100% RH
Contact Technical Support for information on additional uncertainty due to temperature effects.

Calibration

NIST-traceable calibration performed to verify individual sensor performs within specified accuracy limits.

Output signal range

0 to 5V for 0 to 100% RH

Power requirements

Supply voltage: 12 to 30 VDC
Supply current: 5 mA Max

Installation

Mounting: Uses a sheet metal bracket with a hose clamp, to be mounted to the tower, under the shelter box
Tools required: 8 mm (5/16 inch) nut driver or wrench

Environmental

Operating temperature range

-40°C to 70°C (-40°F to 158°F)

Operating humidity range

0 to 100% relative humidity (non-condensing)

Other

IP55 Rated
Recommended range of operation is 5 to 60°C and 20 to 80% humidity. Longterm exposure to conditions outside this range may temporarily offset RH measurements (approximately 3% after 60 hours).

Physical

Connections

Wire leads, 3 conductor shielded cable:

Red: Power
Black: Ground
White: Signal out
Braid: Shield

Cable length

1.5 m (5 feet)

Weight

0.320 kg (0.71 lbs)

Dimensions

190 mm (7.5 inches) x 113 mm (4.4 inches) x 69 mm (2.7 inches)

Materials

Cable: 3 conductor 22 AWG, with overall foil shield and drain wire, chrome PVC jacket
Enclosure: UV stabilized plastic box with aluminum mounting bracket