CALYPSO Ultra Low Power Ultrasonic Wind Meter User Manual

: June 11, 2024
: CALYPSO

Table of Contents

CALYPSO Ultra Low Power Ultrasonic Wind Meter
Product overview
Package content
Technical specifications
Configuration Options
Communication Protocols
General information
Warranty
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

CALYPSO Ultra Low Power Ultrasonic Wind Meter

If you want to know more about our new ULP wind meter, please keep reading or visit our website www.calypsoinstruments.com

Product overview

Thank you for choosing the ULP wind meter from Calypso Instruments. This ULP is the first model or our generation II, representing an important technology breakthrough condensing an extensive R+D

Both shape and firmware have been enhanced for an improved rain performance. This is key for static applications such as weather stations.
Mechanical design has been revamped making the unit more robust and dependable.
We feel very proud to release a unit that requires under 0.4 mA of power at 5V, sampling at 1Hz.
Different output options available: RS485, UART/- TTL and MODBUS.

Package content

The package contains the following:

Ultrasonic ULP Wind Instrument plus 2 meter (6.5 ft) cable for connection
Serial number reference on the side of the packaging.
A quick user guide on the back of the packaging and some more useful information for the customer.

Technical specifications

The ULP has the following technical specifications:

Dimensions
- Diameter: 68 mm (2.68 in.)
- Height: 65 mm (2.56 in.)
Weight 210 grams (7.4 ounces)
Power · 3.3-18 DCV

The ULP has to be connected as shown in this section

Data interface| 1Autotransmit

2-POLL telegram 3-MODBUS

---|---

Data format

|

NMEA0183

Baudrate| 2400 to 115200 bauds
Voltage range| 3.3-18V

Power consumption:

Ultra-Low-Power (RS485 NMEA0183) : 0,25mA @5V, 1Hz
/ (MODBUS) : 1 mA @5V,1 Hz
Ultra-Low-Power (UART / I2C ) : 0,15 mA @5V, 1Hz

Sensors

Ultrasonic transducers (4x)
Sample rate: 0.1 Hz to 10 Hz

The ULP has been designed to avoid any mechanical parts to maximize reliability and minimize maintenance.
The transducers communicate between themselves two by two using ultrasonic range waves. Each pair of transductors calculates the signal delay and get information about both wind direction and wind speed.

Wind Information
- Wind speed
- Wind direction
Sample rate : 1 Hz
Wind Speed
- Range : Range: 0 to 45 m/s (1.12 to 100 mph)
- Accuracy: ±0.1 m/s at 10m/s (0.22 at 22.4 mph)
- Threshold: 1 m/s (2.24 mph)
Wind direction
- Range: 0 – 359º
- Accuracy : ±1º
Easy mount
- 3 x M4 lateral female tripod thread
- 3 x M4 base female tripod thread
- UNC 1/4” – 20

It can be mounted either on a plate (inferior screws) or on a tube (lateral screws).

Mounting accessories
A wide range of accessories can be used with the device. The ULP can be mounted on a flat service and screwed on to different sizes of poles. It can also be used with an adaptor for poles of 39 mm.

Please, visit our website and check all the accessories available and their possible combinations.
- Firmware
  Upgradable via RS485, MODBUS or UART/TTL

Product Material
The ULP is engineered to be a robust device with minimal downtime. This new shape has been designed for optimum water spillage which implies lower probability of ice formation. Frost might affect measurements if it blocks the wave path. The input wires are protected by Transient Voltage Suppression (TVS) diodes. The instrument body is built with Polyamide

Quality Contro
Every single unit is calibrated with accuracy, following the same calibration standards for each one in a wind tunnel.
A Q/C report for both wind speed and direction is generated and kept in our files. Standard deviation is checked to guarantee that each unit has been calibrated to the highest standards.

Configuration Options

The ULP can be set up by using a special configuration app made by Calypso Instruments. In order to use the app, you should download the configurator from our website at www.calypsoinstruments.com. To configure your device, connect the ULP via either a USB to RS485 converter cable (in case of the ULP RS485 or the ULP Modbus) or via a USB to UART converter cable (in case of the ULP UART). Connect all the ULP cables except for the brown cable to the converter. Insert the USB into the computer, open the configurator app, select the configuration wanted and follow the instructions on the screen to finish the configuration.
For more information, please watch the following video. https://bit.ly/3DuA7lM
*USB converter cables available on calypsoinstruments.com

baudrate: 2400 to 115200 (8n1) bauds
output rate: 0.1 to 10 Hertz
output units: m/sec., knots or km/h

Communication Protocols

Modbus Registers

DIR_BASE_LA1 30001
SYSTEM_STATUS DIR_BASE_LA1 + 200
WIND_SPEED DIR_BASE_LA1 + 201
WIND_DIRECTION DIR_BASE_LA1 + 202
TWO_MIN_AVG_WS DIR_BASE_LA1 + 203
TWO_MIN_AVG_WD DIR_BASE_LA1 + 204
TEN_MIN_AVG_WS DIR_BASE_LA1 + 205
TEN_MIN_AVG_WD DIR_BASE_LA1 + 206
WIND_GUST_SPEED DIR_BASE_LA1 + 207
WIND_GUST_DIR DIR_BASE_LA1 + 208
FIVE_MIN_AVG_WS DIR_BASE_LA1 + 210
FIVE_MIN_AVG_WD DIR_BASE_LA1 + 211
FIVE_WIND_GUST_SPEED DIR_BASE_LA1 + 212
FIVE_WIND_GUST_DIR DIR_BASE_LA1 + 213

RS485 and UART Sentences
MWV Wind Speed and Angle
1 2 3 4 5
| | | | |
$–MWV,x.x,a,x.x,a*hh

Wind Angle, 0 to 360 degrees
Reference, R = Relative, T = True
Wind Speed
Wind Speed Units, K/M/N
Status, A = Data Valid
Checksum

MWV Sentence 4800bps 8N1
The connection is straightforware with no configuration required. The hardware interface is RS485, 4800bps, 8N1. The logical interface NMEA0183 has MWV ASCII simple phrases with direction and wind speed being the following:

$IIMWV,316,R,06.9,N,A*18
$IIMWV,316,R,06.9,N,A*18
$IIMWV,316,R,06.8,N,A*19
$IIMWV,316,R,06.8,N,A*19
$IIMWV,316,R,06.8,N,A*19

I2C Sentences
General Options
Address I2C- 0x15 ( 21 decimal )

Frecuency -100kHz – 400kHz
SDA -TX (Yellow)
SCL – RX (Green)

Write Register
In order to write about the register it is necessary to write 2 bytes, the I2C bus direction and the register you need to check.
I2C Address (1 Byte) + Register Address (1 Byte)
Address -0x15 (21 decimal)
Available Registers:

Wind Raw Stat – 0x10
Wind 2 Min Stat – 0x12
Wind 5 Min Stat – 0x15
Wind 10 Min Stat – 0x1A
Wind Full Stats – 0x1F

Read Register
For the read register we need to take into account how many bytes is the system giving us back and what bytes we need to read in order to obtain the value we need. Data are under big-endian criteria. The first byte, the more valuable one to be represented. E.g. If 2 bytes are read, byte 0 and byte 1, we will read the first byte as 0x05 and second byte 0x0A.

The first byte is marked in orange. The more valuable one. The second byte is marked in blue ( less significant one LSB).
Write Wind Raw Register Return 7 Bytes

Bytes 0 – 1 – Unused
Bytes 2 – 3 – Wind Speed * 100
Bytes 4 – 5 – Wind Direction * 100
Byte 6 – Checksum

Write Wind 2 Min Stat Register Return 11 Bytes

Bytes 0 – 1 – Unused
Bytes 2 – 3 – Wind Speed * 100
Bytes 4 – 5 – Wind Direction * 100
Bytes 6 – 7 – Wind Speed Gust * 100
Bytes 8 – 9 – Wind Direction Gust * 100
Byte 10 – Checksum

Write Wind 5 Min Stat Register Return 11 Bytes

Bytes 0 – 1 – Unused
Bytes 2 – 3 – Wind Speed * 100
Bytes 4 – 5 – Wind Direction * 100
Bytes 6 – 7 – Wind Speed Gust * 100
Bytes 8 – 9 – Wind Direction Gust * 100
Byte 10 – Checksum

Write Wind 10 Min Stat Register Return 11 Bytes

Bytes 0 – 1 – Unused
Bytes 2 – 3 – Wind Speed * 100
Bytes 4 – 5 – Wind Direction * 100
Bytes 6 – 7 – Wind Speed Gust * 100
Bytes 8 – 9 – Wind Direction Gust * 100
Byte 10 – Checksum

Write Wind Full Stat Register Return 31 Bytes

Bytes 0 – 1 – Unused
Bytes 2 – 3 – Wind Speed Raw * 100
Bytes 4 – 5 – Wind Direction Raw * 100
Bytes 6 – 7 – Wind Speed 2 Min Stat * 100
Bytes 8 – 9 – Wind Direction 2 Min Stat * 100
Bytes 10 – 11 – Wind Speed Gust 2 Min Stat * 100
Bytes 12 – 13 – Wind Direction Gust 2 Min Stat * 100
Bytes 14 – 15 – Wind Speed 5 Min Stat * 100
Bytes 16 – 17 – Wind Direction 5 Min Stat * 100
Bytes 18 – 19 – Wind Speed Gust 5 Min Stat * 100
Bytes 20 – 21 – Wind Direction Gust 5 Min Stat * 100
Bytes 22 – 23 – Wind Speed 10 Min Stat * 100
Bytes 24 – 25 – Wind Direction 10 Min Stat * 100
Bytes 26 – 27 – Wind Speed Gust 10 Min Stat * 100
Bytes 28 – 29 – Wind Direction Gust 10 Min Stat * 100
Byte 30 – Checksum

General information

General recommendations
Wind Speed Gust is that value that measures abrupt and sudden change in wind speed. Regarding mounting the unit, align the north mark of the ULP towards the north. Regarding mounting the unit, the mast head has to be prepared for the mechanical installation. Align the North mark of the Ultrasonic Ultra-Low-Power to the north. Make sure to install the sensor in a location free from wind perturbation, usually on the mast head. Make sure to install the sensor in a location free from anything that obstructs the pow of wind to the sensors within a 2 meter radius, for example, the mast head on a boat.

Other important aspects:

Do not attempt to access the transducers area with your fingers;
Do not attempt any modification to the unit;
Never paint any part of the unit or alter its surface in any way.
NOT allow to be submerged fully or partially in water. If you have any questions or doubts, please contact usdirectly.

Maintenance and repair
The ULP does not require great maintenance thanks to the lack of the moving parts in this new design. Transducers must be kept clean and aligned. Impacts or incorrect impulsive handling may lead to transducers misalignment

Maintenance and repair
The space around the transducers must be empty and clean. Dust, frost, water, etc… will make the unit s top working. The ULP can be wiped clean with a damp cloth being careful to not touch the transducers.

Warranty

This warranty covers the defects resulting from defective parts, materials and manufacturing, if such defects are revealed during the 24 months after the purchase date. Warranty is void in case of non-following the instructions of use, repair or maintenance without written authorisation. Any wrongful use given by the user will not incur in any responsibility on part of Calypso Instruments. Therefore, any harm caused to the ULP by a mistake will not be covered by the warantee. Using assembly elements different from those delivered with the product will void the guarantee. by the warantee. Using assembly elements different from those delivered with the product will void the guarantee. Changes on transducers position/alignment will avoid any warranty.
For further information please contact Calypso Technical Support through info@calypsoinstruments.com or visit www.calypsoinstruments.com.

MODBUS Sensor Data Requests
Measurements all have a resolution of 0.1 but are reported as 10*. 8.2 m/s is returned as a value 82. The user must /10 in order to reinsert the decimal precision

Address| Register| Access Type| Response Range| Data Type| Description
---|---|---|---|---|---
200| 201| Read| 0 to 15†| 16-bit Signed Int| System Status†
201| 202| Read| 0 to 500| 16-bit Signed Int| Wind speed (m/s) (3 second moving average)
202| 203| Read| 0 to 3599| 16-bit Signed Int| Wind direction (°) (3 second moving average)
203| 204| Read| 0 to 500| 16-bit Signed Int| 2 min avg wind speed
204| 205| Read| 0 to 3599| 16-bit Signed Int| 2 min avg wind direction
205| 206| Read| 0 to 500| 16-bit Signed Int| 10 min avg wind speed
206| 207| Read| 0 to 3599| 16-bit Signed Int| 10 min avg wind direction
207| 208| Read| 0 to 500| 16-bit Signed Int| Wind gust speed
208| 209| Read| 0 to 3599| 16-bit Signed Int| Wind gust direction
210| 211| Read| 0 to 500| 16-bit Signed Int| 5 min avg wind speed
211| 212| Read| 0 to 3599| 16-bit Signed Int| 5 min avg wind direction
212| 213| Read| 0 to 500| 16-bit Signed Int| 5 min Wind gust speed
213| 214| Read| 0 to 3599| 16-bit Signed Int| 5 min Wind gust direction