CALYPSO ULP485 Ultra-Low-Power Ultrasonic Pro Wind Meter User Manual
- October 30, 2023
- CALYPSO
Table of Contents
CALYPSO ULP485 Ultra-Low-Power Ultrasonic Pro Wind Meter
If you want to know more about our new ULP Pro wind meter, please keep reading or visit our website www.calypsoinstruments.com.
Product Overview
Thank you for choosing the ULP Pro Ultrasonic Anemometer from Calypso Instruments. This ULP Pro is the second model of our generation II, representing an important technology breakthrough condensing an extensive R+D investment.
- Both shape and firmware have been enhanced for 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.
Applications for the ULP485 are the following:
Weather Stations | Drones Temporary Scaffolding and construction |
Infrastructures and building | Cranes Spraying | Irrigation | Fertilizing |
Precision Agriculture Smart Cities | Wild fires | Shooting | Scientific
Package content
The package contains the following:
- One ULP Pro Wind Instrument plus 2 meters (6.5 ft) of 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.
- M3 headless screw (x7)
Technical specifications
The ULP has the following technical specifications:
Dimensions
- Diameter: 68 mm (2.68 in.)
- Height: 65 mm (2.56 in.)
Weight 200 grams (7 ounces)
Power · 3.3-18 DCV
The ULP has to be connected as shown in this section.
RS485/MODBUS RTU Output:
UART/TTL Output:
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: 0.5 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
- 2 x M3 lateral female tripod thread
- 3 x M3 base female tripod thread
- UNC 1/4” – 20
Mounting accessories
A wide range of accessories can be used with the device. The ULP Pro 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 RS485, MODBUS or UART/TTL configurator tool available on our
website for downloading in the section Technical Information.
Product Material
The ULP Pro 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 VNEW!oltage Suppression (TVS) diodes. The instrument body is inject molded.
Quality Control
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 genera-ted 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 Pro can be set up by using a special configurator 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 Pro via either a USB to RS485
converter cable (in case of the ULP Pro RS485 or the ULP Pro Modbus) or via a
USB to UART converter cable (in case of the ULP Pro UART). Connect all the ULP
Pro 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: 0.5 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.
Write Register (continuation)
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
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
Regarding mounting the unit, align the north mark of the ULP Pro towards the
north. Make sure to install the sensor in a location free from anything that
obstructs the flow 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 area of the transducer 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 allowed to be submerged fully or partially in water.
If you have any questions or doubts, please contact us directly.
Maintenance and repair
- The ULP Pro 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.
- The space around the transducers must be empty and clean. Dust, frost, water, etc… will make the unit stop working.
Maintenance and repair (continuation)
The ULP Pro 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 authorization. Any wrongful use
given by the user will not incur in any responsibility of Calypso Instruments.
Therefore, any harm caused to the ULP Pro by a mistake will not be covered by
the waranty. Using assembly elements different from those delivered with the
product will void the guarantee. Changes on the transducer’s
position/alignment will avoid any warranty.
For further information please contact Calypso Technical Support at
[email protected]
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. You can use either Input Register (0x03) or Holding Register (0x04). If you want to read register 201, which corresponds with wind direction in this case 0 m/s , Modbus asks for address 202
- Request frame: [001][004] [000][201] [000][001] [255][244]
- Response frame: [001][004] [002][000][000] [185][048]
Register| Address| 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
If not applicable to ULP-M, the register should report a value of zero (0).
See Data Format section for numeric conversions.
www.calypsoinstruments.com