DeltaOHM HD52.3D... series, Operating Manual

Page 1: ...Operating manual Ultrasonic anemometers HD52 3D series www deltaohm com Companies Brands of GHM English Keep for future reference...

Page 2: ...10 5 2 3 RS422 SERIAL CONNECTION 11 5 2 4 SDI 12 SERIAL CONNECTION 12 5 2 5 ANALOG OUTPUTS CONNECTION 12 5 2 6 CONNECTION TO THE RS485 PORT OF HD32MT 1 DATA LOGGER 13 5 2 7 CONNECTION OF RS52 CABLE 1...

Page 3: ...ts for wind speed and direction which are factory configurable within 4 20 mA standard 0 1 V 0 5 V or 0 10 V to be specified when or dering The heater option prevents the accumulation of snow and ice...

Page 4: ...Measuring range 300 1100 hPa Resolution 0 1 hPa Accuracy 0 5 hPa 20 C Solar radiation needs option P Used sensor Thermopile Measuring range 0 2000 W m2 Resolution 1 W m2 Accuracy 2nd Class Pyranometer...

Page 5: ...rs for the measurement of wind speed and direction 3 Protective shield from solar radiation for relative humidity and temperature sensors 4 Fixing clamp to 40 mm mast Note in the models measuring baro...

Page 6: ...ce of wind one of the two time values is greater than the other and the comparison between the two time values allows to determine the direction and the intensity of the wind Measuring the travel time...

Page 7: ...he cable tie at the bottom of the instrument The support mast having 40 mm maximum outer diameter and 36 mm minimum inner diame ter should be positioned on a stable surface The instrument should be in...

Page 8: ...If however the instrument is already set to op erate in one of the available operating modes SDI 12 NMEA MODBUS RTU proprietary RS232 proprietary RS485 the set mode will be active 10 seconds after pow...

Page 9: ...pply negative 7 HEAT Heater power supply positive 8 GND Serial ground 9 TX Serial transmission output negative 10 Not connected 11 Not connected 12 GND Instrument power supply negative 13 RX Serial re...

Page 10: ...int network Instruments are connected in sequence through a twisted pair shielded cable for signals and a third wire for ground Line terminations should be placed at the two ends of the network The ca...

Page 11: ...nnecting the instrument to the network configure address and Baud Rate see chap ter 6 CONFIGURATION 5 2 3 RS422 SERIAL CONNECTION RS422 standard is used for point to point connection on long distances...

Page 12: ...Connect the outputs according to one of the two schemes below depending on the output type current standard or voltage on request available in the instrument OUT 1 and OUT 2 are associated to wind spe...

Page 13: ...isolated ground of RS485 circuit Note if the connection cable is too long it is advisable to add surge protection devices on RS485 TX and TX data lines For a correct system operation anemometers shou...

Page 14: ...is powered directly from the USB port of the PC 5 2 8 CONNECTION OF HEATING SYSTEM Models with heat option R option have an integrated device that heats sonic transducers in order to prevent ice form...

Page 15: ...line for SDI 12 connection 3 3 RX Serial receive input positive 4 13 RX Serial receive input negative 5 17 TX Serial transmission output positive 6 6 HEAT Heater power supply negative 7 7 HEAT Heater...

Page 16: ...rial commands described in the following tables To configure and make the in strument operational the following should be performed Send command for operation mode selection see table Operation Mode d...

Page 17: ...nit set in the instrument CGUPn Sets pressure measuring unit mbar if n 1 Note 1mbar 1hPa mmHg if n 2 inchHg if n 3 mmH2O if n 4 inchH2O if n 5 atm if n 6 Default mbar n 1 RGUP n Reads the pressure mea...

Page 18: ...Baud Rate for proprietary RS232 mode to 9600 if n 3 19200 if n 4 38400 if n 5 57600 if n 6 Default 57600 n 6 RU2B n Reads Baud Rate setting for proprietary RS232 mode CU1Dccccccccccc Sets measurements...

Page 19: ...s is requested E character three numbers with the following meaning will appear in the data string sent by the instrument 1 First number error code identifying the transducers and the type of error Th...

Page 20: ...parity and stop bits for NMEA mode to 8N1 if n 0 No parity 1 stop bit 8N2 if n 1 No parity 2 stop bits 8E1 if n 2 Even parity 1 stop bit 8E2 if n 3 Even parity 2 stop bits 8O1 if n 4 Odd parity 1 stop...

Page 21: ...ful to do tests without RS232 RS485 conversion RU5I n Reads interface setting for MODBUS mode CU5Mn Sets parity and stop bits for MODBUS mode to 8N1 if n 0 No parity 1 stop bit 8N2 if n 1 No parity 2...

Page 22: ...should range within 1 and 9 s Default 9 seconds RWaL n Reads the time interval for the calculation of average speed and average direction set in the instrument CWaMn Sets the method for the calculatio...

Page 23: ...ing to 0 539 9 range in stead of 0 359 9 The wide output fluctuation occurs the first time that the wind direction goes from 0 to 359 9 if later the physical direction goes back to 0 the analog output...

Page 24: ...Mean wind direction If n 1 see Note 5 Output 1 Instant wind speed component along V axis Output 2 Instant wind speed component along U axis If n 2 Tunnel mode see Note 6 Output 1 Instant wind speed c...

Page 25: ...by the magnetic compass but the measurement is referred to the direction indicated by the arrow on the instrument case The output 2 is set to full scale value if the wind blows in the direction of the...

Page 26: ...ing in the instrument Data bits 8 Parity None Stop bits 2 The instrument sends measurements in the following format M1 M2 Mn CR LF with M1 M2 Mn values of the first second nth measurement CR ASCII cha...

Page 27: ...nding measurements M1 M2 Mn values of the first second nth measurement SP space CS checksum hex value of the 8 bit checksum of all the preceding characters CR ASCII character Carriage Return Fields M1...

Page 28: ...stablishes that data are sent in the following format Prefix Data hh CR LF with Prefix field consisting in 5 alphanumeric characters the first two indicate the type of transmitting device the other th...

Page 29: ...2 Based on the above values the following can be calculated o Absolute humidity 16 4 g m3 o Dew Point 19 5 C The strings sent by the instrument in three different cases are indicated below Case 1 inst...

Page 30: ...and is sent to 1 byte Function type of operation to be performed by the instrument 1 byte Data data communicated by the PC to the instrument 0 to 252 bytes CRC cyclic redundancy check of data for data...

Page 31: ...again to transmit or generate an error signal The functions that can be requested from the PC to the instrument together with the corre sponding codes to be entered in the command field Function are i...

Page 32: ...is atm x10 in the other cases unsigned 16 bits 1 00 1 0009 Compass angle in degrees x10 unsigned 16 bits 1 00 0010 Solar radiation in W m2 unsigned 16 bits 1 00 0011 Mean wind speed x100 unsigned 16 b...

Page 33: ...d direction value is memorized in the regis ter number 0002 To read the quantity value we need to enter the following in the request address number 1 of the register with the first parameter 0001 0001...

Page 34: ...r reading is Command Value Length Description Function 07h 1 byte Error register reading command Data 0 byte Data field is empty The instrument reply takes the following form Reply Value Length Descri...

Page 35: ...l can nevertheless generate error conditions for example if one tries to read an inexistent parameter or if the instrument is asked to perform a function which is not compatible with its model A reply...

Page 36: ...version of the protocol The table below shows the available SDI 12 commands To comply with the SDI 12 standard the instrument address is indicated in the table with the letter a The instrument comes w...

Page 37: ...requested command aD0 without send ing this command before Request to perform the measurement aD0 aD9 a Measurements CR LF a Measurements CR LF where a address of the instrument 1 character Measuremen...

Page 38: ...measurement has the same format as tem perature If a quantity measurement is in error condition a negative value consisting in a series of 9 is sent The fields corresponding to quantities not meas ure...

Page 39: ...3DP4 Wind speed wind direction solar radiation and barometric pressure HD 52 3D17 Wind speed wind direction temperature and relative humidity HD 52 3D147 Wind speed wind direction temperature relativ...

Page 40: ...the specific measures described in this manual are followed The instrument proper operation and operating safety can be ensured only in the climatic con ditions specified in this manual Do not use th...

Page 41: ...ESSORIES HD52 3D S Further copy of CD ROM with HD52 3D S software for PC connection instru ment configuration and monitor For Windows operating systems RS52 Serial connection cable with built in USB R...

Page 42: ...erminal block for power supply distribution and connectors for connecting the external sensors Wired and tested HD32 36 Outdoor housing complete with acquisition system for weather stations Material P...

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Page 44: ...zed third parties is excluded from the guarantee The instrument shall be returned FREE OF SHIPMENT CHARGES to your dealer The jurisdiction of Padua applies in any dispute The electrical and electronic...

Page 45: ...e result of the constant development of the product This may produce some differences between the information written in this manual and the instrument you have purchased We cannot completely exclude...

Page 46: ...GHM GROUP Delta OHM Delta Ohm S r l a socio unico Via Marconi 5 35030 Caselle di Selvazzano Padova ITALY Phone 39 049 8977150 Fax 39 049 635596 www deltaohm com info deltaohm com V1 11 05 07 2017...