NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer
Authors:
Technical Services
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 2
15 August 2019
CONTENTS
INTRODUCTION ....................................................................................................................... 3
THEORY OF OPERATION .......................................................................................................... 3
SENSOR IDENTIFICATION ......................................................................................................... 3
POWER REQUIREMENTS .......................................................................................................... 4
SIGNAL TYPE ............................................................................................................................ 4
ELECTRICAL INTERFACE (PIN OUT AND CONNECTOR) .............................................................. 4
MOUNTING ............................................................................................................................. 5
NRG Mounting Boom Options ........................................................................................... 5
SYMPHONIEPRO ...................................................................................................................... 6
Compatibility .................................................................................................................. 6
Wiring ............................................................................................................................. 6
Channel Configuration .................................................................................................... 6
Default Settings (Desktop Application 3.7.0 and later) ..................................................... 7
SYMPHONIEPLUS3 ................................................................................................................... 8
Compatibility .................................................................................................................. 8
Wiring ............................................................................................................................. 8
Channel Configuration .................................................................................................... 9
SPECIFICATIONS..................................................................................................................... 10
NRG S1 ANEMOMETER ASSOCIATED ITEMS LIST .................................................................... 11
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 3
15 August 2019
INTRODUCTION
The NRG S1 Anemometer (introduced September, 2019) is a high performance Class 1A anemometer
ideally suited for wind resource assessment as well as meteorological and environmential studies. The
S1 is compatible with all Symphonie series loggers equipped with an iPack, as well as third party loggers
and Data Acquisition systems (DAQ) that accept a square wave signal input.
The sensor has undergone rigorous testing in various lab, field, and wind tunnel conditions; an IEC
61400-12-1:2017 Edition 2 classification report is readily available. For quality traceability as well as
sensor specific transfer function, a MEASNET calibration report is available for each individual sensor.
THEORY OF OPERATION
The anemometer head rotates in the wind, which in turn rotates a shaft supported by steel ball
bearings. At the bottom of the rotor is a 14 pole optical chopper which provides the means for high
resolution measurement of the rotational frequency of the anemometer head through an optical (opto)
interrupter. As the chopper passes the opto interrupter’s slot, the circuit produces a square wave with
peak-to-peak voltage equivalent to the sensor’s excitation voltage.
The sensor draws approximately 0.9mA at 12Vdc and is protected with internal bi-directional transient
voltage suppression devices. Additionally, the signal line is protected against miswire by a resettable
fuse.
SENSOR IDENTIFICATION
The S1 can be identified by the yellow label on the base of the body, which contains the “NRG S1
Anemometer” model name, serial number (9412-NNNNNNNN) and barcode.
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 4
15 August 2019
POWER REQUIREMENTS
The S1 Anemometer requires an excitation voltage of (5 to 28) Vdc and consumes 0.9 mA of current at
12 V.
Excitation Voltage (Vdc)
Current Consumption (mA)
5
1.75
12
0.90
28
0.54
SIGNAL TYPE
The NRG S1 Anemometer signal output is a square wave (pulse) with amplitude equal to the excitation
source. The frequency of the signal is proportional to wind speed.
ELECTRICAL INTERFACE (PIN OUT AND CONNECTOR)
The NRG S1 Anemometer contains a 3 pin male M12 connector (M12 3P A-code) with the following
interface:
NRG S1 Electrical Interface
Excitation
Signal
Ground
Shield
Additionally, NRG offers pre-configured cables with integral female M12 3P (A-code) connector in a
variety of lengths
Output Signal Amplitude
Time
NRG S1 Signal Output
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 5
15 August 2019
MOUNTING
The S1 mounts on a 25.4 mm (1 inch) nominal diameter mast.
Install the sensor onto the NRG mounting boom as follows:
1. Feed the cable through the boom extension.
2. Connect the cable to the sensor using small profile 12 mm or ½ inch
wrench (NRG accessory item 12746).
NRG Mounting Boom Options
The following booms are compatible with the NRG S1. Please consult with NRG to
determine the best booms for your application.
NRG S1 Mounting Boom Items
Item Number
Description
14025
Boom Assembly, 95" (qty 1), NRG S1
14026
Boom Assembly, 95" (qty. 2), NRG S1
14027
Boom Assembly, 95", (qty. 1), Lattice NRG S1
12264
NRG S1 Side Mount Boom Extension
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 6
15 August 2019
SYMPHONIEPRO
Compatibility
The NRG S1 settings are available as “drop-down list” presets in SymphoniePRO Desktop Application
3.7.0 and later. There are no special logger firmware requirements, although it is good practice to keep
your firmware up to date. An iPack connected to the logger will supply the required sensor power.
NOTE: The latest versions of software, firmware and documentation can be downloaded from this
page: https://www.nrgsystems.com/services-support/resources/documentation-and-downloads/ .
Wiring
The NRG S1 can be connected to SymphoniePRO counter channels 1-12 and utilizes a familiar 3-wire
connection (Excitation, Signal, Ground) plus a shield.
NRG S1 Wire
Function
NRG Sensor Cable
Conductor
NRG SymphoniePRO Wiring
Panel (Channel 1-12)
Excitation
Red
EXC
Signal
White
SIG
Ground
Black
GND
Shield
Shield
SHD
Channel Configuration
Create the following configuration in the SymphoniePRO Desktop Application. Note, if you do not see
the S1 in the “Load From Defaults” drop-down menu, please update your software by visiting the
“Services and Support” section of our website.
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 7
15 August 2019
Default Settings (Desktop Application 3.7.0 and later)
The SymphoniePRO Desktop Application contains default scaling information for the S1 anemometer. It
is also possible to configure using other scaling information such as from an individual sensor’s
calibration report.
Scale Factor: 0.0935
Offset: 0.139
Signal Type should be set to Pulsed.
Internal Pull-up resistor should be left disabled.
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 8
15 August 2019
SYMPHONIEPLUS3
Compatibility
The NRG S1 is compatible with the NRG SymphoniePLUS3 channels 1-6 and 13-15, when equipiped with
an iPack.
Wiring
The NRG S1 can be connected to NRG SymphoniePLUS3 channels 1-6 and 13-15 and utilizes a familiar 3-
wire connection (Excitation, Signal, Ground) plus a shield.
NRG S1 Wire
Function
NRG Sensor Cable
Conductor
NRG SymphoniePLUS3Wiring
Panel (Channel 1-6, 13-15)
Excitation
Red
EXC
Signal
White
SIG
Ground
Black
GND
Shield
Shield
SHD
NRG S1
Shield
Ground
Signal
Excitation
NRG Instructions
NRG S1 Anemometer Instructions
Rev. 1
Page 9
15 August 2019
Sensors | NRG S1 Anemometer
Channel Configuration
Using the SDR software , configure the logger as follows:
Description: NRG S1
Scale Factor: 0.0935
Offset: 0.139
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 10
15 August 2019
SPECIFICATIONS
Please see nrgsystems.com for up to date product specifications.
Description
Sensor type
3-Cup Anemometer
Applications
Wind resource assessment
IEC 61400-12-1 turbine power curve verification
Operational wind farm monitoring
Meteorological studies
Environmental monitoring
Instrument compatibility
All NRG Systems Data Loggers
Output signal
Signal type
Square wave with frequency proportional to wind speed
Amplitude: Equal to supply voltage (5 to 28) Vdc
Anemometer Transfer
Function
Default transfer function: m/s = (0.0935 x Hz) + 0.139
Refer to individual calibration report for specific anemometer transfer function.
All NRG S1 anemometers are calibrated per IEC 61400-12-1, Annex F.
Calibration
Each anemometer individually calibrated, calibration reports provided via
electronic download
Installation
Mounting
Onto a 25 mm (1 inch) diameter mast with 2 set screws
Tools required
12 mm or ½ inch wrench (NRG item 12746)
Environmental
Operating temperature
range
-30 °C to 60 °C (-22 °F to 140 °F)
Operating humidity range
0 to 100% RH
Physical
Connections
M12 Connector (sensor male, cable female)
Cable length
Various available
Dimensions
3 cups of conical cross-section, 51 mm (2 inches) dia.
81 mm (3.2 inches) overall assembly height
Materials
Cups
One piece injection-molded black polycarbonate
Body
Anodized Aluminum
Shaft
Stainless Steel
Bearing
Ball Bearings
NRG Instructions
Sensors | NRG S1 Anemometer
NRG S1 Anemometer Instructions
Rev. 1
Page 11
15 August 2019
NRG S1 ANEMOMETER ASSOCIATED ITEMS LIST
Item
Description
14025
Boom Assembly, 95" (qty 1), NRG S1
14026
Boom Assembly, 95" (qty. 2), NRG S1
14027
Boom Assembly, 95", (qty. 1), Lattice NRG S1
12264
NRG S1 Side Mount Boom Extension
12651
Cable-Assy, S1, 3C, 22AWG, M12, 100m
12652
Cable-Assy, S1, 3C, 22AWG, M12, 115m
12653
Cable-Assy, S1, 3C, 22AWG, M12, 130m
12643
Cable-Assy, S1, 3C, 22AWG, M12, 13m
12654
Cable-Assy, S1, 3C, 22AWG, M12, 145m
12655
Cable-Assy, S1, 3C, 22AWG, M12, 160m
12644
Cable-Assy, S1, 3C, 22AWG, M12, 24m
12645
Cable-Assy, S1, 3C, 22AWG, M12, 35m
12646
Cable-Assy, S1, 3C, 22AWG, M12, 46m
12647
Cable-Assy, S1, 3C, 22AWG, M12, 57m
12642
Cable-Assy, S1, 3C, 22AWG, M12, 5m
12648
Cable-Assy, S1, 3C, 22AWG, M12, 67m
12649
Cable-Assy, S1, 3C, 22AWG, M12, 80m
12650
Cable-Assy, S1, 3C, 22AWG, M12, 90m
9412
Sensor, Anemometer, S1, Calibrated
9416
Sensor, Anemometer, S1, Calibrated, DWG
9415
Sensor, Anemometer, S1, Calibrated, SOH COP
14037
Service, Calibration, NRG S1 Anemometer, DWG
14036
Service, Calibration, NRG S1 Anemometer, SOH COP
14021
Service, Calibration, NRG S1 Anemometer, SOHWE
12746
Tool, Wrench, NRG S1 Installation