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3-axis ultrasonic anemometer 

 User manual 

 

INSTUM_ 04861

 

Page 

7/15 

2.3

 

Electrical connections 

All connections are performed through a 26-pole male connector situated at the bottom of the anemome-
ter. The figure and the table below show numbers and function of the connector contacts: 
 

 

 

Pin connector 

Signal 

Description 

Cable wire color 

PWR- 

Negative Power Supply 

Brown 

PWR- (TX+*) 

Negative Power Supply (Tx B RS-422*) 

Black 

PWR+ 

Positive Power Supply 

Grey & Brown 

PWR+ (TX-*) 

Positive Power Supply (Tx A RS-422*) 

Red 

DATA + (RX+*)  Pole B RS-485 (Rx B RS-422*) 

White & Green 

DATA - (RX-*) 

Pole A RS-485 (Rx A RS-422*) 

Grey 

SG 

Ground RS-232 

Yellow 

TXD 

Tx data RS-232 

White & Yellow 

RXD 

Rx data RS-232  

Yellow & Brown 

OUTV1 

Analog Out voltage 1 

Pink & Brown 

OUTV2 

Analog Out voltage 2 

Red & Blue 

OUTV3 

Analog Out voltage 3 

Grey & Red 

OUTV4 

Analog Out voltage 4 

Brown & Green 

OUTV5 

Analog Out voltage 5 

Green 

REF 

Analog ground  

Blue 

OUTmA1 

Analog Out current 1 

Pink 

OUTmA2 

Analog Out current 2 

White 

OUTmA3 

Analog Out current 3 

White & Grey 

OUTmA4 

Analog Out current 4  

White & Red 

OUTmA5 

Analog Out current 5 

Violet 

Q0 

Reserved 

Q1 

Reserved 

Q2 

Reserved 

Q3 

Reserved 

Q4 

Reserved 

SHIELD 

Shielding 

Shield 

 
*RS-422 available on request. 

 

 

 

Summary of Contents for DNB146

Page 1: ...INSTUM_ 04861 Page 1 15 Environmental monitoring solutions 3 axis ultrasonic anemometer DNB146 User manual Updated 07 03 2022...

Page 2: ...3 2 Analog Output connection 8 2 3 3 Connection to LSI LASTEM data logger 8 3 Configuration 9 3 1 Connecting PC to the sensor 9 3 2 Accessing the configuration 10 3 3 Disabling compass 10 4 LSI Lastem...

Page 3: ...dbus RTU protocol The anemometer can be connected to LSI LASTEM acquisition systems or any other device using such kind of input 1 2 Technical specifications DNB146 Wind speed Principle Ultrasounds Me...

Page 4: ...ure 40 60 C Protection degree IP 66 Weight 1500 g Housing Luran aluminum Mounting On mast 33 mm On mast 55 mm using DNB192 adapter not included Data logger compatibility Analog outputs M Log code ELO0...

Page 5: ...t or to possible other products connected with it To avoid any damages use this product exclusively ac cording to the instructions herein contained The installation and maintenance procedures must be...

Page 6: ...etallic objects it must be positioned with the metal sup port opposite the connector facing Nord 4 Once the align ment is complete fix it on the sup port mast by tight ening the cable tie at the bot t...

Page 7: ...RX Pole B RS 485 Rx B RS 422 White Green W DATA RX Pole A RS 485 Rx A RS 422 Grey X SG Ground RS 232 Yellow Y TXD Tx data RS 232 White Yellow L RXD Rx data RS 232 Yellow Brown E OUTV1 Analog Out volta...

Page 8: ...rial connection For more information regarding RS 485 consult the EIA Electronic Industries Association 2 3 2 Analog Output connection 2 3 3 Connection to LSI LASTEM data logger For the wiring connect...

Page 9: ...ID Modbus address 1 3 1 Connecting PC to the sensor By means of a terminal emulation program such as Windows Hyper terminal it is possible to modify the sensor configuration parameters from the PC by...

Page 10: ...ssigned to each item Upon selection a submenu is opened or the selected parameter is displayed with its value Changes to values are confirmed with Enter or discarded with Esc If no key is pressed on t...

Page 11: ...of the measures to distinguish them from each other o In the Elaborations tab choose the desired elaborations Save the configuration and send it to the data logger 4 2 Use of digital output To use the...

Page 12: ...ded by the relative multiplication fac tor Error codes table Error code Description Anomaly 1x First pair lower transducer error 2x First pair upper transducer error 3x Second pair lower transducer er...

Page 13: ...ultimeter to the second output wind direction 6 Subject the sensor to the air flows with the angles 0 90 180 and 270 checking the correspond ing current values as indicated in the following table Air...

Page 14: ...drate 9600 bps Parity None and that the PC serial port used is COM1 modpoll a 1 r 1 c 8 t 3 COM1 Enter The program displays the measurement values in the following order Wind Speed Wind Direction Elev...

Page 15: ...onmental protection and collection LSI LASTEM recommends handling the product as waste of electrical and elec tronic equipment RAEE For this reason at the end of its life the instrument must be kept a...

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