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GHM Delta OHM HD2013.3, Operating Manual

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GHM Delta OHM HD2013.3 Operating Manual Download Page 1

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Operating manual

 

 

Precipitation detector 

HD2013.3 

 

www.deltaohm.com 

English 

Keep for future reference. 

Companies / Brands of GHM

 

Summary of Contents for Delta OHM HD2013.3

Page 1: ...Operating manual Precipitation detector HD2013 3 www deltaohm com English Keep for future reference Companies Brands of GHM ...

Page 2: ...NTENTS 1 INTRODUCTION 3 2 TECHNICAL SPECIFICATIONS 4 3 INSTALLATION 6 3 1 ELECTRICAL CONNECTIONS 6 4 CONFIGURATION AND MEASUREMENT 9 5 PROPRIETARY PROTOCOL 10 6 MODBUS RTU PROTOCOL 16 7 SAFETY INSTRUCTIONS 19 8 ORDERING CODES 20 ...

Page 3: ...he instrument external circular dome acts as a windshield for the sensor preventing false indications An auto calibration algorithm compensates for variations in the response due to the dirt that can accumulate on the sensitive surface The instrument has a digital RS485 output with MODBUS RTU or proprietary protocol a 0 4 20 mA 0 10 V on request when ordering analog output and a voltage free conta...

Page 4: ...ensor Temperature 0 1 C Output RS485 not isolated with MODBUS RTU or proprietary protocol Analog 0 4 20 mA RLmax 500 Ω or on request 0 10 V RLmin 10 kΩ Voltage free normally open contact max 200 mA 30 Vdc resistive load Power supply 12 30 Vdc Consumption With heating OFF 18 mA 24 Vdc With heating ON 230 mA max 24 Vdc The indicated consumption does not include the consumption due to the analog outp...

Page 5: ...HD2013 3 5 V1 2 Fig 2 1 dimensions mm Bird spikes optional Bracket ...

Page 6: ... is free from any object that could obstruct the detection of the precipitation Keep the sensor clean 3 1 ELECTRICAL CONNECTIONS The instrument has a 8 pole circular connector and uses the CP2013 2 optional ca bles with 8 pole connector on one side and open wires on the other side Fig 3 2 connectors pinout HD2013 3 Bracket Mast Connector Screws for fixing the detector to the bracket Ring for fixin...

Page 7: ...sing the proprietary protocol or the MODBUS RTU protocol Fig 3 3 RS485 connection Current analog output By default the current analog output is 4 20 mA with 4 mA sensor sensitive surface completely wet 20 mA sensor sensitive surface completely dry With the commands of the proprietary protocol it is possible to set the range 0 20 mA for the output and reverse the direction of the output so that whe...

Page 8: ...rection of the output so that when the sensor sensi tive surface is completely wet the output is 10 V In case of measurement error the output goes to 11 V Fig 3 5 voltage analog output connection Contact output There is a normally open voltage free contact between pins 1 and 4 of the connector green and blue wires of the optional CP2013 2 cable The contact closes when the sensor detects a precipit...

Page 9: ...protocol or by using the holding register with address 5 of the MODBUS RTU protocol The indication of precipitation in progress ceases when the percentage of dry sensitive surface of the sensor rises above the threshold plus a configurable hysteresis value default 2 and after a configurable delay time default 2 minutes The resolution with which the percentage of dry sensitive surface of the sensor...

Page 10: ...t the instrument replies with USER CAL MODE ON The command CAL USER ON is automatically disabled after a few minutes of inactivity If the settings should be only read the command CAL USER ON is not required Below is the list of the serial commands Instrument information Command Reply Description G0 Model Instrument model G1 Revision Instrument hardware revision G2 SN nnnnnnnn Instrument serial num...

Page 11: ...olates protocol Waiting 3 5 characters if n 1 respects protocol Default Immediate reception n 0 RMW n Reads the setting of waiting time after transmission with MODBUS RTU protocol Precipitation detection settings Command Reply Description CRLRn Sets the resolution with which the percentage of dry sensitive surface of the sensor is detected 1 if n 0 0 1 if n 1 Default 1 n 0 RRLR n Reads the resolut...

Page 12: ... RSH n Reads the setting of the hysteresis of the reference temperature to discriminate between rainfall and snowfall CRADn Sets the delay in indicating the beginning of a precipita tion both rainy and snowy to n seconds 0 32767 s The indication of precipitation in progress is generated only if the precipitation lasts longer than the set time Default 0 RRAD n Reads the setting of the delay in indi...

Page 13: ... measured tempera ture is lower than the reference temperature Default Output activated in case of rainfall n 1 RRS n Reads the setting of the contact output activation mode Analog output Command Reply Description CAOE Adds the offset to the analog output 4 20 mA or 2 10 V CAOD Remove the offset from the analog output 0 20 mA or 0 10 V CAOR n Reads the setting of the offset for the analog output W...

Page 14: ...CENTAGE Prints the list of the measurement information sent by the instrument RAIN_RAW number of 12 bit ADC counts proportional to the percentage of dry sensitive surface of the sensor RAIN_LEVEL percentage of dry sensitive surface of the sensor RAIN_STATUS indication of no precipitation 0 or precipitation in progress 1 RAIN_VALIDITY validity of the precipitation indication 0 no 1 yes PRECIPITATIO...

Page 15: ...ompletely dry CRBSn Enable disable the precipitation sensor automatic cali bration at regular intervals Disable if n 0 Enable if n 1 Default Automatic calibration enabled RRBS n Reads the enabling status of the precipitation sensor au tomatic calibration CRBTn Sets the time interval between two consecutive precipi tation sensor automatic calibrations to n seconds 300 64800 s Default 1800 30 minute...

Page 16: ... Indication of the type of precipitation 0 rainfall 1 snowfall Bit Input Registers Number Address Description Format 1 0 Instrument model identification 16 bit Integer 2 1 Instrument hardware revision 16 bit Integer 3 4 2 3 Instrument serial number 16 bit Integer 5 4 Instrument firmware revision The most significant byte indicates the major revision the less significant byte indicates the minor re...

Page 17: ... Rate 0 1200 1 2400 2 4800 3 9600 4 19200 default 5 38400 6 57600 7 115200 16 bit Integer 2 1 RS485 parity and stop bits 0 8N1 1 8N2 2 8E1 default 3 8E2 4 8O1 5 8O2 N no parity E even parity O odd parity 16 bit Integer 3 2 Instrument address for the MODBUS RTU protocol 1 247 default 1 16 bit Integer 4 3 Heating operating mode 0 Manual 1 Always on 2 Always off 3 Automatic default If the manual mode...

Page 18: ...ng the transition from rainfall to snow fall when the temperature dops below the reference temperature 0 32767 s default 0 16 bit Integer 14 13 Delay in indicating the transition from snowfall to rain fall when the temperature rises above the reference temperature plus the hysteresis 0 32767 s default 0 16 bit Integer 15 14 Temperature unit of measurement 0 C 1 F 16 bit Integer 16 15 Contact outpu...

Page 19: ... well as the specific measures described in this manual are followed The instrument proper operation and operating safety can be ensured only in the cli matic conditions specified in this manual Do not use the instruments in places where there are Corrosive or flammable gases Direct vibrations or shocks to the instrument High intensity electromagnetic fields static electricity User obligations The...

Page 20: ...as to be ordered separately HD2013 2D Bird spikes 6 spikes 3 mm height 60 mm To be requested when ordering the instrument CP2013 2 5 Cable with 8 pole watertight connector on one end free wires on the other end Length 5 m CP2013 2 10 Cable with 8 pole watertight connector on one end free wires on the other end Length 10 m DELTA OHM metrology laboratories LAT N 124 are ISO IEC 17025 accredited by A...

Page 21: ...HD2013 3 21 V1 2 NOTES ...

Page 22: ...HD2013 3 22 V1 2 NOTES ...

Page 23: ......

Page 24: ...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 equipment marked with this symbol cannot be disposed of in public landfills According to the Directive 2011 65 EU the european users of electrical and electronic equipment can return it to the dealer...

Page 25: ...he 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 the possibility of errors in the manual for which we apologize The data images and descriptions included in this manual cannot be legally asserted We reserve the right to make changes and corrections...

Page 26: ...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 2 16 01 2020 ...

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