Gill GMX100 User Manual Download

Page: 22 / 144

Gill Instruments Ltd

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__________________________________________________________________________________________________

MaxiMet

Page 22

Issue 3

Doc. No. 1957-PS-021

May 2018

4.5.

Power supplies

4.5.1 MaxiMet Units

Supply Voltage: 5V to 30V DC

Average current at 12V DC with power saving mode disabled (add 10mA for GPS versions):

GMX100

42mA

GMX101

6mA

GMX200

22mA

GMX240

64mA

GMX300

5mA

GMX301

5.5mA

GMX400

45mA

GMX500

24mA

GMX501

24mA

GMX531

37mA

GMX541

60mA (includes the rain sensor)

GMX550

27mA

GMX551

37mA

GMX600

64mA

MaxiMet has reverse polarity protection.

4.6.

Connecting to a PC using RS232 (default setting)



MaxiMet default factory communications setting is RS232



The recommended cable length for reliable operation is limited to 6.5m (20ft)



For longer cable runs, we recommend use of RS422 output



As an alternative method of using MaxiMet with RS232 communications change the MetSet
COMMS setting from RS232 to EXT and connect Pin 8 to the +ve supply connection (dotted line
connection)



If EXT is selected and Pin 8 is left open circuit then note that RS422 comms will be set

MaxiMet

9-Way Connector

PC, Typical 9-Way ‘D’

Connector

Signal Names

Pin

Nos.

Cable – 3 twisted

pairs

Signal Names

Pin

Nos.

TXD-
RXD-

5
7

RXD
TXD

2
3

Signal Ground

Not connected this

end

N/A

Screen and drain

wires

Chassis ground

N/A

Comms

V supply -

2
3

DC power supply

Summary of Contents for GMX100

Page 1: ...and Serial Numbers 1801XXXX onwards Gill Instruments Limited Saltmarsh Park 67 Gosport Street Lymington Hampshire SO41 9EG UK Tel 44 1590 613500 Fax 44 1590 613555 Email anem gillinstruments com Website www gillinstruments com GM240 GMX541 GMX550 GMX600 GMX551 GMX531 GMX500 GMX300 GMX200 GMX100 GMX301 GMX400 GMX501 GMX101 ...

Page 2: ...X541 GMX550 GMX551 and GMX600 9 2 1 7 Rain GMX100 GMX240 GMX400 GMX541 GMX600 and Gill Spare Part 1957 PK 073 9 2 1 8 Rain GMX531 9 2 1 9 Rain GMX550 and GMX551 9 2 1 10 Compass GMX200 GMX240 GMX500 GMX501 GMX531 GMX541 GMX550 GMX551 and GMX600 10 2 1 11 Compass Declination 10 2 1 12 Solar GMX101 GMX301 GMX501 GMX531 GMX541 and GMX551 10 2 1 13 GPS Option GMX200 GMX240 GMX500 GMX531 GMX541 GMX550 ...

Page 3: ...l Alignment 32 5 1 9 Mounting Tube e g Gill Part 1405 30 056 32 5 1 10 Mounting Bracket e g Gill Part 1771 PK 115 33 5 1 11 Dimensions in mm 34 6 CONFIGURING WITH METSET 38 6 1 MaxiMet Default Configurations 38 6 2 Configuring MaxiMet with MetSet 55 6 2 1 Opening MetSet 55 6 2 2 MetSet Editing Screen 57 6 2 3 MetSet Online Settings 58 6 2 4 MetSet Editing Pages 58 6 3 Polled Mode 69 6 3 1 Configur...

Page 4: ...EWING MAXIMET DATA STRING 112 7 1 Use MetSet to View the MaxiMet Data String 112 7 2 Using Gill MetView Software to View the MaxiMet Data String 113 7 2 1 Opening MetView 113 7 2 2 Scanning for Devices 114 7 2 3 The MetView Console 115 7 2 4 MetView Console Display Options 116 7 2 5 MetView Gauge Ranges and Graphs 117 7 2 6 Data Logging 119 7 3 Use a Terminal Program to View the MaxiMet Data Strin...

Page 5: ...____________________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 5 Issue 3 Doc No 1957 PS 021 May 2018 9 2 Glossary Abbreviations 143 9 3 Electrical Conformity 144 ...

Page 6: ...iMet sensor units are very robust with no moving parts The sensor units output rate and formats are all user selectable The MaxiMet can be used in conjunction with a PC data logger or other device The MaxiMet combines all the instrument data into a single data string This may be configured for digital ASCII RS232 RS422 RS485 2 wire point to point only digital Modbus RTU ASCII NMEA and SDI 12 outpu...

Page 7: ...atus Sensors Wind Status Dewpoint Absolute Humidity Pressure at Sea Level Pressure at Station Precipitation Intensity Precipitation Total Precipitation Status Wind Chill Heat Index Air Density Wet Bulb Temperature Solar sunshine Hours Twilight Sunrise Solar Noon Sunset Position of the Sun Angle of Tilt Node Letter Volts Supply Time and Date Corrected Speed GPS Opt GPS Opt GPS Opt GPS Opt GPS Opt G...

Page 8: ...ulation is independent of factors such as temperature MaxiMet can output the following wind readings depending on use of a Compass or GPS Relative wind wind speed and or direction uncorrected but relative to the north marker which may not be facing north Corrected wind with the aid of the Compass Magnetic North corrected wind direction can be output True wind wind speed and or direction informatio...

Page 9: ...igital signal processing allows a measurement of Rain levels to be made The sensor increments rain detected in default 0 080mm steps but tip size can be changed The GMX541 rain gauge is supplied with a 20M lead with 9 way and 4 way connectors fitted NOTE The Optical Sensor provides a General Indication only of rainfall levels for use in situations where low maintenance is required Use a tipping bu...

Page 10: ...for correcting a moving object s wind speed and direction heading Details on the algorithm used are included in the Appendix Para 9 1 2 1 11 Compass Declination Declination is the magnetic declination the angle between Magnetic North and True North in degrees This is a correction factor that is added to the Magnetic North heading from the compass Map and declination figures in decimal figures can ...

Page 11: ...rds west Y Tilt shall be displayed in degrees with 2 signed integral digits over the range 89 YY shall indicate that the unit is tipping towards north YY shall indicate that the unit is tipping towards south Z Orientation shall be displayed as 1 or 1 1 normal upright position 90 degrees 1 inverted position 90 degrees Check Tilt Output Units with an Inclinometer have a more accurate X and Y Tilt 4H...

Page 12: ... Miles Hour Kilometres Hour Feet minute Wind Direction Range 0 359 degrees No dead band Accuracy 3 0 01m s to 40m s 5 above 40 and up to 60m s Resolution 1 Compass Range 0 359 degrees Resolution Compass Heading 1 Units of Measure Degrees Accuracy 3 Air Temperature Range 40 C to 70 C Accuracy 0 3 C 20 C Resolution 0 1 C Units of Measure C or F or K Relative Humidity Range 0 100 Accuracy 2 20 C 10 t...

Page 13: ...re time 11mS Minimum time between closures 500mS Capable of reading a switch contact closure providing the total digital switch contact resistance contact and cabling is less than 20 ohms Power Supply Output 12v dc 1v dc at up to 100mA for Solid State Rain Gauge Rain GMX550 and GMX551 for use with an External Rain Gauge Precipitation Intensity Maximum rate of 1000mm per hour based on 0 2mm per tip...

Page 14: ...eck Tilt Mode X Y and Z output only X and Y Tilt in Check Tilt Mode 89 9 degrees 4 Hz Output Outputs Digital Outputs Gill ASCII RS232 RS422 RS485 or SDI 12 RS232 point to point and RS485 2 wire networkable Modbus RTU ASCII Baud Rates 1200 SDI 12 4800 57600 ASCII RS232 RS422 RS485 9600 19200 Modbus RTU ASCII Protocols ASCII SDI 12 V1 3 NMEA 0183 or Modbus RTU ASCII Data Output 1 reading per second ...

Page 15: ...tection Class IP66 EMC BS EN 61326 FCC CFR47 Parts 15 109 Operating Temperature 40 C to 70 C Storage Temperature 40 C to 80 C Humidity 0 100 RoHS Compliant Yes Mechanical External Construction Polycarbonate Fittings Bolt fittings supplied for securing the unit to a vertical pipe of diameter 44 45mm Overall Dimensions GMX100 and GMX541 rain sensor GMX101 GMX200 GMX240 GMX300 GMX301 GMX400 GMX500 GM...

Page 16: ...ain sensor GMX101 GMX200 GMX240 GMX300 GMX301 GMX400 GMX500 GMX501 GMX531 GMX541 GMX550 GMX551 GMX600 Kalyx Tipping Bucket Rain Gauge 0 4kg 0 4kg 0 5kg 0 5kg 0 48kg 0 6kg 0 5kg 0 7kg 0 8kg 0 8kg 0 8kg 0 8kg 0 8kg 0 8kg 1kg including baseplate 1 2kg with baseplate and 20 metre lead Software MetSet Configuration Free software on the supplied CD providing the means of configuration of the MaxiMet Met...

Page 17: ...sted and shielded 24 AWG connector pins attached to one end and stripped wires the other 1405 10 080 Cable 20 Metre 4 pin connector one end stripped wires other end for external rain gauge use with GMX531 GMX541 GMX550 GMX551 1957 10 066 Cable 20 Metre 4 pin connector one end 9 way connector the other for GMX541 1957 10 064 Connector only 4 way will fit GMX531 GMX541 GMX550 and GMX551 020 06496 9 ...

Page 18: ... 5 Strip back the connection wires by 5mm and tin solder 6 Solder the contact pins to the wires please note that the connector supplies the correct strain relief for cables with an outside diameter of 6 12mm 7 Put the parts on the cable in the order as shown below 8 Whilst squeezing the red retainer in the direction of ARROWS A pull in the direction of ARROW B Your connector should now resemble th...

Page 19: ...cts are inserted push the red retainer into place NB The retainer can only be pushed back into place if the contacts are fully engaged 11 Fit the connector to the MaxiMet so that you can finish assembling the connector 12 Screw the back shell onto the connector until it is fully in place Please note that the final rotations can be slightly stiff 13 Now screw the next part of the connector into pla...

Page 20: ...Cable outer diameter 6 12mm to match the connector gland For RS422 485 operation the cable should have twisted pairs with drain wire screened with aluminised tape with an overall PVC sheath Typical wire size 7 0 2mm 24 AWG The table below shows an example manufacturers reference other manufacturers equivalents can be used Tipping Bucket Wire type 24 AWG to fit MaxiMet GMX531 550 551 4 way M8 conne...

Page 21: ...esistance to be less than 20 ohms 4 4 Connections Any cable wires not used should be isolated and grounded at the terminating equipment user end Digital 0V should be used in conjunction with RS422 Tx Rx lines in order to improve noise immunity 4 4 1 View of the MaxiMet Connector looking down at the Cable Side 4 4 2 9 Way Connector and Cable Connections 9 Way Connector Number Signal Designation 1 S...

Page 22: ... has reverse polarity protection 4 6 Connecting to a PC using RS232 default setting MaxiMet default factory communications setting is RS232 The recommended cable length for reliable operation is limited to 6 5m 20ft For longer cable runs we recommend use of RS422 output As an alternative method of using MaxiMet with RS232 communications change the MetSet COMMS setting from RS232 to EXT and connect...

Page 23: ...pairs Signal Names TXD TXD 4 5 RXD RXD RXD RXD 6 7 TXD TXD Signal Ground 1 Signal Ground Not connected this end N A Screen and drain wires Chassis Ground Comms 8 V supply V supply 2 3 DC power supply 4 8 Using RS485 not a default setting MaxiMet default factory comms setting is RS232 To use the MaxiMet with RS485 2 wire communication use MetSet to change the COMMS Interface setting to RS485P 2W Fo...

Page 24: ...o SDI 12 4 10 Using the MaxiMet GMX531 with a Supplied Kalyx Rain Gauge or GMX550 GMX551 user supplies a Rain Gauge Wiring Details MaxiMet 9 Way Connector SDI 12 Device Signal Names Pin Nos 2 pair cable Signal Names SDI 12 9 SDI 12 Signal Ground 1 Signal Ground Not connected this end N A Screen wires Chassis Ground Supply ve Supply ve 2 3 DC power supply MaxiMet 4 Way Connector 20m cable supplied ...

Page 25: ...for No rain For use with a tipping bucket contact closure type change GMX550 GMX551 tip setting using Gill MetSet to match the tipping bucket figure 0 001 to 9 998mm A 4 way connector is supplied Gill Part 020 06496 Binder M8 Series 768 female angled connector solder part 99 3378 00 04 Will accept 24 AWG wire and has a cable outlet for 3 5mm to 5mm diameter wire Typical suitable cable characterist...

Page 26: ...ch the Solid State Rain Gauge A protective cap is supplied on the GMX541 4 way outlet socket This should be fitted at any time that the external rain gauge cable is disconnected from the sensor External Solid State Rain Gauge Electrical Specification Power requirement 12V 1V DC Current 19mA at 12V DC 55mA peak when raining The GMX541 Solid State Rain Gauge input has reverse voltage protection The ...

Page 27: ...using the Gill Instruments Configuration cable 4 12 2 Software Gill MetSet Software used as a configuration tool supplied on MaxiMet CD will run on PCs with up to and including Windows 10 and can be downloaded free from http www gillinstruments com main software html 4 12 3 Bench System Test The CD supplied in the MaxiMet box contains a copy of the manual and relevant software to check and set up ...

Page 28: ...cted junction boxes plugs and sockets the cable screen integrity must be maintained to prevent the EMC performance being compromised If a screened cable is not available between MaxiMet and a rain gauge connection and there are local high RF field strengths then it is advised to route cabling through a grounded metal conduit Earth loops should not be created earth the system in accordance with wir...

Page 29: ...orizontally and vertically as level as possible MaxiMet has a tilt sensor output that can assist with this A clear view of the sky is best for an optimal satellite lock Tree canopy surrounding hills mountains tall buildings and any mounting structure mast that obscures the view either overhead or of the horizon can impede reception Signal multipath errors can occur if the GPS signal is reflected o...

Page 30: ...ns or 30 degrees for Southern Hemisphere Locations 5 1 7 Rain Tipping Bucket Rain Gauge Kalyx supplied with GMX531 and can be used with GMX550 and GMX551 The Kalyx rain gauge tipping bucket mechanism is immobilised before shipping to prevent damage in transit To release the mechanism remove the funnel from its base by unscrewing the three nylon thumbscrews Remove the piece of foam from under the b...

Page 31: ... MaxiMet has a tilt sensor output that can assist with this A clear view of the sky is best for optimal rain measurements Adjacent mounting obstructions or tall landscape features could impede rain readings NOTE The Optical Sensor provides a General Indication only of rainfall levels for use in situations where low maintenance is required Use a tipping bucket or equivalent with a MaxiMet e g GMX53...

Page 32: ...x 3mm wall thickness is recommended see figures in para 5 1 11 Note It is important that the correct diameter tube is used to prevent damage to the MaxiMet lower moulding when tightening the screws The support tube requires three 3 equally spaced holes tapped M5 7 5mm from the top of the tube Pass the cable fitted with the 9 way Clipper plug through the tube An optional 500mm long x 44 45 mm outer...

Page 33: ...re the sensor to its mount using screws and washers supplied in the MaxiMet box 3 Torque screws to a maximum of 1 5Nm The bracket uses a mounting clamp suitable for attaching to a vertical pipe with a diameter of 30 58mm When mounting the MaxiMet consider the position orientation and alignment of the unit Mount at the top of a pipe to ensure a clear unobstructed measurement view Note The mounting ...

Page 34: ...________________________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 34 Issue 3 Doc No 1957 PS 021 May 2018 5 1 11 Dimensions in mm GMX240 GMX100 GMX200 GMX101 ...

Page 35: ...____________________________________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 35 Issue 3 Doc No 1957 PS 021 May 2018 GMX300 GMX301 GMX400 GMX500 ...

Page 36: ..._________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 36 Issue 3 Doc No 1957 PS 021 May 2018 GMX550 GMX531 GMX541 GMX551 GMX501 GMX600 GMX 541 External Solid State Rain Gauge ...

Page 37: ...____________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 37 Issue 3 Doc No 1957 PS 021 May 2018 Kalyx Rain Gauge associated with GMX 531 and optional for a GMX550 or GMX551 ...

Page 38: ...RECIPI TIME VOLT STATUS CHECK Q 00000 200 000 200 2015 06 05T10 19 30 8 05 1 0000 36 Where STX Q Node Letter 00000 200 Precipitation Total 000 200 Precipitation Intensity 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0000 Status ETX 36 Checksum NOTES STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figu...

Page 39: ...ata String NODE SOLARRAD SOLARHOURS TIME VOLT STATUS CHECK Q 0000 00 00 2015 06 05T10 19 30 8 05 1 0000 36 Where STX Q Node Letter 0000 Solar Radiation 00 00 Solar Hours Hours and Minutes 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0000 Status Not Applicable ETX 36 Checksum Notes STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum t...

Page 40: ...N TIME VOLT STATUS CHECK Q 021 000 01 090 000 01 50 763004 001 539898 3 10 2015 06 05T10 19 30 8 05 1 0000 36 Where STX Q Node Letter 021 Wind Direction 000 01 Wind Speed 090 Corrected Direction 000 01 GPS Corrected Speed 50 763004 GPS Latitude 001 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0000 Status ETX 36 Checksum NOTES STX is the Start o...

Page 41: ...User Information Field System Date and Time Supply Voltage Status Checksum Q 048 000 02 106 000 000 00 000 000 00 000 0100 058 07 58 12 08 16 19 143 09 16 57 17 39 18 19 00 00 1 2018 01 16T09 29 31 1 05 0 0000 22 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Average Relative Wind Direction WMO Average Relative Wind Speed WMO Relative Gust Direct...

Page 42: ...0268 GPS Longitude 0001 60 GPS Height location 2017 11 02 Date T15 07 27 6 Time 05 0 Supply Voltage 0004 Status ETX 31 Checksum Notes STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Sett...

Page 43: ... Wind Speed WMO Relative Gust Direction WMO Relative Gust Speed WMO Average Corrected Wind Direction WMO Average Corrected Wind Speed WMO Corrected Gust Direction WMO Corrected Gust Speed WMO Wind Sensor Status Total Precipitation Precipitation Intensity Precipitation Status Compass Heading GPS Location GPS Heading GPS Speed Over Ground GPS Sensor Status Sunrise Time Solar Noon Time Sunset Time Po...

Page 44: ...umidity Temperature Dewpoint Absolute Humidity Heat Index Air Density Wet Bulb Temperature Sunrise Time Solar Noon Time Sunset Time Position of the Sun Twilight Civil Twilight Nautical Twilight Astronomical X Tilt Y Tilt Z Orientation User Information Field System Date and Time Supply Voltage Status Checksum Q 0999 5 0999 5 0999 5 040 023 3 009 1 08 45 1 2 015 1 07 58 12 08 16 19 162 15 16 57 17 3...

Page 45: ... MODICT 1000 GMX301 Full Data String Node Pressure Pressure at Sea level Pressure at Station Relative Humidity Temperature Dewpoint Absolute Humidity Solar Radiation Sunshine Hours Heat Index Air Density Wet Bulb Temperature Sunrise Time Solar Noon Time Sunset Time Position of the Sun Twilight Civil Twilight Nautical Twilight Astronomical X Tilt Y Tilt Z Orientation User Information Field System D...

Page 46: ...TATUS ON NODE Q UNITS DEWPOINT C PUPMSG REPORT ON OUTFREQ 1HZ SENSOR PRESS ON PUPMSG UNITS ON MSGMODE CONT UNITS PRESS HPA MODBUS RTU ASCTERM CRLF HASL 00000 00 MODADDR 1 ECHO ON HASTN 00000 00 DATABITS 8 SENSOR RH ON STOPBITS 1 UNITS RH PARITY NONE PRECIPITATION SENSOR ON MODTERM 10 PRECIPITATION UNITS MM MODICT 1000 ARPRECIP ON PUPMSG STATUS ON GMX400 Full Data String Node Pressure Pressure at S...

Page 47: ...d 090 Corrected Direction 000 01 GPS Corrected Speed 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 50 763004 GPS Latitude 001 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status ETX 36 Checksum NOTES STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 d...

Page 48: ...light Nautical Twilight Astronomical X Tilt Y Tilt Z Orientation User Information Field System Date and Time Supply Voltage Status Checksum Q 056 000 04 115 000 000 00 000 000 00 000 0100 0999 2 0999 2 0999 2 041 023 2 009 2 08 56 059 1 2 015 1 07 58 12 08 16 19 166 16 16 57 17 39 18 19 00 01 1 2018 01 16T11 13 19 5 05 0 0000 22 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind D...

Page 49: ...d 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 0000 Solar Radiation 50 763004 GPS Latitude 001 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status ETX 36 Checksum NOTES STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure i...

Page 50: ...lt Z Orientation User Information Field System Date and Time Supply Voltage Status Checksum Q 003 000 02 062 000 000 00 000 000 00 000 0100 0999 3 0999 3 0999 3 041 023 3 009 3 08 61 059 0 001 00 00 1 2 015 2 07 58 12 08 16 19 161 15 16 57 17 39 18 19 00 00 1 2018 01 16T10 50 19 2 05 0 0000 08 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Averag...

Page 51: ...898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status ETX 36 Checksum Notes STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Settings...

Page 52: ... 90 00000 200 000 200 N 042 0001 01 20 028 028 1 2 012 8 07 54 12 10 16 25 174 18 17 03 17 45 18 24 12 14 1 2017 01 20T11 46 01 3 05 0 0000 51 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Average Relative Wind Direction WMO Average Relative Wind Speed WMO Relative Gust Direction WMO Relative Gust Speed WMO Average Corrected Wind Direction WMO A...

Page 53: ...Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status ETX 36 Checksum Notes STX is the Start of String character ASCII value 2 ETX is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Settings REPORT ...

Page 54: ...003 8 05 90 00000 200 000 200 N 042 028 028 1 2 012 8 07 54 12 10 16 25 174 18 17 03 17 45 18 24 12 14 1 2017 01 20T11 46 01 3 05 0 0000 51 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Average Relative Wind Direction WMO Average Relative Wind Speed WMO Relative Gust Direction WMO Relative Gust Speed WMO Average Corrected Wind Direction WMO Aver...

Page 55: ... The availability of certain functions and parameters illustrated will depend on the MaxiMet model and Options see Para 2 1 2 and for Parameter details Para 9 1 6 2 1 Opening MetSet Click on the MetSet button on your PC s desktop or choose Start All Programs MetSet MetSet The MetSet Control Centre window is displayed If you have more than one MaxiMet connected to your PC MetSet by default selects ...

Page 56: ...AVGSHORT 60 AVGLONG 10 SENSOR COMPASS ON COMPASSDECL 000 0 SENSOR GPS ON UNITS GPS MS SENSOR TEMP ON UNITS TEMP C SENSOR DEWPOINT ON UNITS DEWPOINT C SENSOR PRESS ON UNITS PRESS HPA HASL 00000 00 HASTN 00000 00 SENSOR RH ON UNITS RH SENSOR PRECIP ON UNITS PRECIP MM ARPRECIP ON REPORT NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT PRECIPT PRECIPI GPSLOCATION TIME VOLT STATUS POWER 0 TIME 2016 04...

Page 57: ...grey indicates that MetSet is being used without a MaxiMet in communication with MetSet 4800 COM23 4800 is a report on the MaxiMet baud rate setting COM 23 is a report on the MaxiMet COM port connection number S W ver 2669 2 00 14 2669 is the MaxiMet firmware number 2 00 14 is the firmware revision Protocol ver 4 4 is the protocol version Gill internal reference Source Device MetSet reads Device w...

Page 58: ...ion Back Up Device Settings When selected the MaxiMet configuration settings are transferred to MetSet and then to a file location selected on a PC Restore Device Settings When selected MetSet retrieves a MaxiMet configuration setting from a PC file loads it into the MaxiMet and updates the MetSet edit settings Measurement Mode View Output Click on View Output to view the raw ASCII MaxiMet data st...

Page 59: ...ud Rate 4800 9600 19200 38400 or 57600 1200 auto selected with SDI 12 setting Node ID A to P Q to Z Output Rate 1Hz 1 per second once per minute once per hour Message Mode CONT continuous output or POLL polled mode Notes When Comms or Baud Rate settings are changed and saved to the device a warning is issued by MetSet These setting changes will not become active until the MaxiMet power is turned o...

Page 60: ...ast ten outputs Long Term Average 10 1 10 Configures WMO Long Term Average as the defined multiple of the Short Term Average i e if AVGSHORT is 10 and AVGLONG is also 10 Long Term Average is a rolling average of the last 100 outputs Compass Sensor ON or OFF With Compass Sensor ON Wind Direction readings corrected to Magnetic North are output in the data string CDIR If set to OFF the field with Com...

Page 61: ...ximum of the gust value over the RWASHORT period default 60 seconds with a 1Hz output rate The max gust value is reset to zero at the end of each RWASHORT period RWA Default Settings Output rate Hz 1 RWASHORT 60 RWALONG 10 Therefore MaxiMet output period 60 1 60 seconds the MaxiMet will output a reading every 60 seconds Averaged direction and magnitude reading 10 x 60 600 seconds this is the time ...

Page 62: ...s The maximum Gust Speed is the magnitude of the maximum gust measured over the short term output period Gust is generated from a rolling 3s average of the short term output period and reset at the end of short term output period GSPEED Outputs Maximum Wind Gust Speed The maximum Gust Direction is the direction of the maximum gust measured over the short term output period Gust is generated from a...

Page 63: ...ercury Height Above Sea Level 00000 00 0 to 10000 metres Elevation on the ground of the unit relative to the average sea level point Atmospheric pressure varies with height above sea level as well as with atmospheric conditions As the altitude at which the pressure sensor operates is usually constant the station height a correction is made to make the reading of the pressure sensor seem as if it w...

Page 64: ...auge Tip Size GMX550 551 default 0 000 can be set for 0 000 to 9 998 mm to match connected gauge When a Rain only Indication sensor is connected then with the Tip Size set to zero i e 0 000 the Precipitation Status shall update as follows Precipitation Status shall report Y whilst the contact relay is in its closed state Precipitation Status shall report N whilst the contact relay is in its open s...

Page 65: ...very available sensor and derived parameter output NMEA Sets the unit to output an NMEA data string USERDEF Report parameters can be selected in any order or switched on or off in USERDEF setting NODE Outputs a Node letter A to Z SPEED Outputs Wind Speed readings CSPEED Outputs Corrected Speed if a GPS option is enabled GSPEED Outputs WMO Gust Speed CGSPEED Corrected Gust Speed if a GPS option is ...

Page 66: ...n data A new sum measurement is generated every minute PRECIPS Outputs Precipitation Rain Status as No N or Yes Y Changes N to Y when total precipitation is incremented Changes Y to N when total precipitation has not incremented in the last 60 seconds WCHILL Outputs the Wind Chill value when Temperature is below 10 C and Wind Speed is at least 1 5m s HEATIDX Outputs the Heat Index value when Tempe...

Page 67: ...rs cannot be calculated Date Time Set read system Date Time YYYY MM DDTHH MM SS See also para 6 9 for more accurately setting Date Time Update System time from GPS ON OFF If a GPS unit is enabled then UTC time is applied Allow an hour for the GPS time to update after switch on Time Offset 00 00 GPS UTC time offset range 24 00 to 24 00 hrs Latitude If using solar units for which Sunrise Sunset and ...

Page 68: ...axiMet Model details and Firmware version Report Message Output ON or OFF E g NODE DIR SPEED CDIR PRESS RH TEMP DEWPOINT SOLARRAD TIME VOLT STATUS CHECK Reports data string output parameters and output order Units Message Output ON or OFF E g DEG MS DEG HPA C C WM2 V END OF STARTUP MESSAGE Reports the output parameters units of measure MODBUS Mode RTU or ASCII Address 1 to 247 Data Bits 8 for Modb...

Page 69: ...Set Message Mode to Poll 4 Click on Save Settings to Device on the Online Mode Menu 5 Shut down the MaxiMet unit 6 Change the hardware connections for the required poll mode interface 6 3 2 Data Retrieval in Polled Mode MaxiMet Set for Power Mode 0 The measurement rate shall always be 1Hz i e regardless of the selected output rate or polling rate The configured measurement string shall be output i...

Page 70: ...ing Only parameters mentioned below are available in SDI 12 Protocol mode irrespective of the Reporting page setting 6 4 1 SDI 12 Units of Measure Note Not all the following outputs are available and will depend on the MaxiMet variant see paras 2 1 2 and 9 1 GMX Model SDI 12 Output Parameters Relative Wind Speed Metres per second m s Corrected Wind Speed Metres per second m s Relative Wind Directi...

Page 71: ...e Hours X Tilt Y Tilt Z Orientation Status aM5 Address signed Latitude integer part signed Latitude fractional part signed Longitude integer part signed Longitude fractional part Height Above Mean Sea Level Status aM6 Address Year Month Day Hour Minute Second Status aM7 Address Sunrise Time Solar Noon Time Sunset Time Position of the Sun Azimuth Position of the Sun Elevation Twilight Civil Twiligh...

Page 72: ...rieve a line of the above data address dir mag status CR LF 0 029 000 01 0000 CR LF aM3 Address Precipitation Intensity Total Precipitation Status atttn CR LF 00033 CR LF aD0 Retrieve a line of the above data address precipitation intensity total precipitation status CR LF 0 002 100 123 100 0000 CR LF aM4 Address Solar Radiation Sunshine Hours X Tilt Y Tilt Z Orientation Status atttn CR LF 00026 C...

Page 73: ...DI 12 Commands with CRC Note Unavailable measurements shall be padded e g 999 99 Returns unit address default is 0 a Current unit address letter factory default is 0 range is 0 to 9 b New address letter range 0 to 9 aAb Change unit address from a to b see above aMC Address Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed if GPS fitted Status and CRC aMC1 Ad...

Page 74: ...s CRC CR LF 0 192 000 07 267 999 9 0000D Q CR LF aMC1 Address Temperature Relative Humidity Dewpoint Pressure Status Wind Chill Heat Index Air Density Wet Bulb Temperature and CRC atttn CR LF 00029 CR LF aD0 Retrieve a line of the above data address temperature relative humidity dewpoint pressure status wind chill CRC CR LF 0 023 3 035 007 2 1015 1 0000 999AiL CR LF aD1 Retrieve final part of the ...

Page 75: ...rt height above mean sea level status CRC CR LF 0 50 763052 001 539920 00000 90 0000 HB CR LF aMC6 Address Year Month Day Hour Minute Second Status and CRC atttn CR LF 00027 CR LF aD0 Retrieve a line of the above data address year month day hour minute second status CRC CR LF 0 2015 06 15 14 07 52 0004 CR LF aMC7 Address Sunrise Time Solar Noon Time Sunset Time Position of the Sun Azimuth Position...

Page 76: ... Frame End Characters CR LF 0D 0A Hex 3 5 Characters Silence Gaps in Message 1 Second 1 5 Times Character Length Start Bit 1 1 Data Bits 7 8 Parity Even Odd None Even Odd None Stop Bits 1 2 1 2 Read Holding Registers function code is 0x03 Diagnostics 0x08 Get Comm event counter 0x0B Report slave server ID 0x11 Requires MaxiMet MetSet Software 1 Connect a MaxiMet to a PC COM port default communicat...

Page 77: ...tworking with up to 32 connected devices Baud Rate Default is 19200 Select required Baud Rate 9600 or 19200 supported Node ID Default is Q Not used for Modbus Output Rate Default is 1Hz Set update rate for MaxiMet Data Message Mode Default is CONT Ensure that the setting is CONT mode Message Mode POLL is not applicable for Modbus use 3 When required settings have been selected click on Save Settin...

Page 78: ...it Floating Point Value 2 AVERAGE SPEED 32 Bit Floating Point Value 2 AVERAGE CORRECTED SPEED 32 Bit Floating Point Value 2 DIRECTION 32 Bit Floating Point Value 2 CORRECTED DIRECTION 32 Bit Floating Point Value 2 GUST DIRECTION 32 Bit Floating Point Value 2 CORRECTED GUST DIRECTION 32 Bit Floating Point Value 2 AVERAGE DIRECTION 32 Bit Floating Point Value 2 AVERAGE CORRECTED DIRECTION 32 Bit Flo...

Page 79: ... 16 bit The first byte is high order and the second is low Each measurement is comprised of two 16bit registers o For each register the order of the two data bytes comprising the 16 bit register s value shall be High Byte Low Byte o For each 32 bit data type whether floating point or integer the order of the first pair of bytes and last pair of bytes shall be High Word Low Word Registers start at ...

Page 80: ...4 Date 16ch string 40015 22 Time 32bit float 40023 24 Supply Voltage 32bit UINT 40025 26 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 CDIR 16ch string 40009 16 Date 16ch string 40017 24 Time 32bit float 40025 26 Supply Voltage 32bit UINT 40027 28 Status Register Type Register Numbers Value T...

Page 81: ... Corrected Direction 32bit float 40009 10 Total Precipitation 32bit float 40011 12 Precipitation Intensity 16ch string 40013 20 Date 16ch string 40021 28 Time 32 bit float 40029 30 Supply Voltage 32bit UINT 40031 32 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 Corrected Direction 32bit float...

Page 82: ...e 16ch string 40019 26 Time 32bit float 40027 28 Supply Voltage 32bit UINT 40029 30 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Pressure 32bit float 40005 06 Relative Humidity 32bit float 40007 08 Temperature 32bit float 40009 10 Dew point 32bit float 40011 12 Solar Radiation 16ch string 40013 20 Date 16ch string 40021 28 Time 32bit float 40029 30...

Page 83: ...sure 32bit float 40011 12 Relative Humidity 32bit float 40013 14 Temperature 32bit float 40015 16 Dew point 16ch string 40017 24 Date 16ch string 40025 32 Time 32bit float 40033 34 Supply Voltage 32bit UINT 40035 36 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 Corrected Direction 32bit float...

Page 84: ...dity 32bit float 40013 14 Temperature 32bit float 40015 16 Dew point 32bit float 40017 18 Solar Radiation 16ch string 40019 26 Date 16ch string 40027 32 Time 32bit float 40033 34 Supply Voltage 32bit UINT 40035 36 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 Corrected Direction 32bit float 4...

Page 85: ...nt 32bit float 40017 18 Total Precipitation 32bit float 40019 20 Precipitation Intensity 32bit float 40021 22 Solar Radiation 16ch string 40023 30 Date 16ch string 40031 38 Time 32bit float 40039 40 Supply Voltage 32bit UINT 40041 42 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 Corrected Dir...

Page 86: ...re 32bit float 40015 16 Dewpoint 32bit float 40017 18 Total Precipitation 32bit float 40019 20 Precipitation Intensity 16ch string 40021 28 Date 16ch string 40029 36 Time 32bit float 40037 38 Supply Voltage 32bit UINT 40039 40 Status Register Type Register Numbers Value Type 4ch string 40001 02 Node 32bit float 40003 04 Direction 32bit float 40005 06 Speed 32bit float 40007 08 Corrected Direction ...

Page 87: ...__________________________________________________ MaxiMet Page 87 Issue 3 Doc No 1957 PS 021 May 2018 Simply Modbus program reading example MaxiMet GMX550 or GMX600 default output Modbus data as follows Simply Modbus program reading example MaxiMet GMX550 or GMX600 with GPS default output Modbus data as follows Note Register data 40001 to 40006 will be as per the above example ...

Page 88: ...ucer Y Type of Sensor Precipitation 000 000 Millimetres per hour of Precipitation M Precipitation Units of Measure Millimetres PRECIP Name of Precipitation Sensor 77 Hex CheckSum CR is a Carriage return character ASCII hex value d LF is a Line Feed Character ASCII hex value a Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the...

Page 89: ...om the Exclusive OR of the bytes between and not including the and characters Immediately followed by PGILT A XX D YY D Z TILT HH CR LF Where P Start of sentence and proprietary sentence identifier GIL Gill Instruments recognised NMEA manufacturer mnemonic T Indicates TILT information A Type of Sensor Angular Displacement XX X Tilt indicates unit is tipping towards east XX degrees Or XX X Tilt ind...

Page 90: ...speed and or direction information corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned Wind Speed only available if a GPS option is fitted format e g 001 05 N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement 18 Hex Check Sum Immediately followed by GPS data if option available GPGGA 095010 00...

Page 91: ...rees D Units Degrees Z Z Orientation 1 shall be reported if the unit is installed upright or 1 if facing downwards TILT Name of the Sensor HH Checksum CR LF End of message termination Example GMX200 NMEA Data String WIMWV 230 R 000 01 N A 0D WIMWV 048 T 000 79 N A 09 GPGGA 095011 000 5045 8066 N 00132 4000 W 1 06 1 5 3 0 M 47 8 M 0000 6D GPS unit PGILT A 00 D 01 D 1 TILT 35 Repeated every second 1...

Page 92: ...M Precipitation Units of Measure Millimetres PRECIP Name of Precipitation Sensor 77 Hex Checksum CR LF End of message termination Followed by GPS data if option available GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 CR LF Where GPGGA NMEA GPS Protocol Header 161229 487 UTC Time hhmmss sss 3723 2475 Latitude ddmm mmmm N North South Indicator 12158 3416 Longitude ddmm mmmm W East...

Page 93: ... or 1 if facing downwards TILT Name of the Sensor HH Checksum CR LF End of message termination Example GMX240 NMEA data string with GPS option WIMWV 311 R 000 01 N A 0F WIMWV 341 T N A 13 WIXDR Y 000 000 M PRECIP 77 GPGGA 000036 064 0 00 M 0 0 M 0000 51 PGILT A 22 D 67 D 1 TILT 35 Repeated every second 1Hz output 6 6 5 GMX300 NMEA Output String WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH 01 C...

Page 94: ...ame of the Sensor HH Checksum CR LF End of message termination Example GMX300 NMEA Data String WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH 0A PGILT A 22 D 67 D 1 TILT 35 Repeated every second 1Hz output 6 6 6 GMX301 NMEA Output String WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Z 0000 W SOLAR 01 CR LF Where WIXDR Wind Instrument Transducer C Type of Sensor Temperature 023 9 Temperature R...

Page 95: ...CR LF End of message termination Example GMX301 NMEA Data String WIXDR C 023 3 C TEMP P 0 9995 B PRESS H 040 P RH Z 2155 W SOLAR 67 PGILT A 00 D 01 D 1 TILT 35 Repeated every second 1Hz output 6 6 7 GMX400 NMEA Output String WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Y 000 000 M PRECIP 01 CR LF Where WIXDR Wind Instrument Cross Transducer C Type of Sensor Temperature 023 9 Temperature Readin...

Page 96: ...lt indicates unit is tipping towards north YY degrees Or YY Y Tilt indicates unit is tipping towards south YY degrees D Units Degrees Z Z Orientation 1 shall be reported if the unit is installed upright or 1 if facing downwards TILT Name of the Sensor HH Checksum CR LF End of message termination Example GMX 400 Data WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH Y 000 000 M PRECIP 0A PGILT A 22 ...

Page 97: ... followed by WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH 01 CR LF Where WIXDR Wind Instrument Transducer C Type of Sensor Temperature 023 9 Temperature Reading C Temperature Reading in Degrees Centigrade TEMP Name of Temperature Sensor P Type of Sensor Pressure 1 0243 Pressure Reading in Bars B Pressure Units of Measure Bars PRESS Name of Pressure Sensor H Type of Sensor Humidity 039 Humidity...

Page 98: ... tipping towards east XX degrees Or XX X Tilt indicates unit is tipping towards west XX degrees D Units Degrees YY Y Tilt indicates unit is tipping towards north YY degrees Or YY Y Tilt indicates unit is tipping towards south YY degrees D Units Degrees Z Z Orientation 1 shall be reported if the unit is installed upright or 1 if facing downwards TILT Name of the Sensor HH Checksum CR LF End of mess...

Page 99: ...nt 0F Hex Check Sum Immediately followed by WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Z 0000 W SOLAR 01 CR LF Where WIXDR Wind Instrument Cross Transducer C Type of Sensor Temperature 023 9 Temperature Reading C Temperature Reading in Degrees Centigrade TEMP Name of Temperature Sensor P Type of Sensor Pressure 1 0243 Pressure Reading in Bars B Pressure Units of Measure Bars PRESS Name of Pr...

Page 100: ...ot including the and characters Immediately followed by PGILT A XX D YY D Z TILT HH CR LF Where P Start of sentence and proprietary sentence identifier GIL Gill Instruments recognised NMEA manufacturer mnemonic T Indicates TILT information A Type of Sensor Angular Displacement XX X Tilt indicates unit is tipping towards east XX degrees Or XX X Tilt indicates unit is tipping towards west XX degrees...

Page 101: ... 049 Wind Direction T True Wind measurement Wind Speed and or Direction information corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned Wind Speed only available if a GPS option is fitted N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement OC Hex Checksum CR LF End of message termination Immed...

Page 102: ... Horizontal Dilution of Precision 9 0 Mean Sea Level NSL Altitude in metres M MSL Units metres Geoid Separation and Units in metres 0000 Differential GPS Reference Station ID 18 Checksum CR LF End of message termination Position Fix Indicator Value Description 0 Fix not available or invalid 1 GPS SPS Mode fix valid 2 Differential GPS SPS Mode fix valid 3 5 Not supported 6 Dead Reckoning Mode fix v...

Page 103: ...1 0243 B PRESS H 039 P RH Y 000 000 M PRECIP Z 0000 W SOLAR 01 GPGGA 075613 000 5045 7954 N 00132 3938 W 1 07 1 2 21 5 M 47 8 M 0000 7B PGILT A 00 D 00 D 1 TILT 34 Repeated every second 1Hz output 6 6 11 GMX550 and GMX600 NMEA Output String WIMWV 049 R 000 03 N A 03 CR LF Where WIMWV Wind Instrument Mean Wind Direction and Velocity 049 Wind Direction R Relative Wind measurement Wind Speed and or D...

Page 104: ...s PRESS Name of Pressure Sensor H Type of Sensor Humidity 039 Humidity Reading in Percent P Humidity Units of Measure Percent RH Name of Relative Humidity Sensor Y Type of Sensor Precipitation 000 000 Millimetres per hour of Precipitation M Precipitation Units of Measure Millimetres PRECIP Name of Precipitation Sensor 01 Hex Checksum CR LF End of message termination Followed by GPS data if option ...

Page 105: ...and proprietary sentence identifier GIL Gill Instruments recognised NMEA manufacturer mnemonic T Indicates TILT information A Type of Sensor Angular Displacement XX X Tilt indicates unit is tipping towards east XX degrees Or XX X Tilt indicates unit is tipping towards west XX degrees D Units Degrees YY Y Tilt indicates unit is tipping towards north YY degrees Or YY Y Tilt indicates unit is tipping...

Page 106: ...tion setting may have been made For instance if the unit has been set for SDI 12 or Modbus operation Safe Mode can be used to change the communication option back to RS232 or RS422 6 7 2 Safe Mode Method 1 Connection 1 Connect the MaxiMet for RS232 communication as detailed in para 4 6 2 Open Gill MetSet Software see para 6 2 3 Click on Connect and Read MetSet will scan COM port settings for a con...

Page 107: ..._________________________________________________________________ MaxiMet Page 107 Issue 3 Doc No 1957 PS 021 May 2018 6 Enter the MaxiMet COM Port connection number 7 Ensure power is now disconnected from the MaxiMet NOTE If using the Gill Instruments RS232 to USB configuration cable then unplug the 9 way connector from the base of the MaxiMet 8 Now click on Next ...

Page 108: ..._______________________________________________________ MaxiMet Page 108 Issue 3 Doc No 1957 PS 021 May 2018 9 Re connect power to the MaxiMet NOTE If using the Gill Instruments RS232 to USB configuration cable then plug in the 9 way connector to the base of the MaxiMet 10 MetSet now opens a Safe Mode 4800 baud connection from which all settings can now be read and changed ...

Page 109: ...ures are not applicable 3 Set the Serial Port to the required COM Port connection using the drop down menu and click on the OK button 4 Set the Baud Rate to 4800 using the drop down menu A blank Wind terminal screen will be opened 5 Left click the mouse in the blank terminal screen 6 Hold down the asterisk key on the keypad 7 With the key still held down apply power to the MaxiMet If using the Gil...

Page 110: ...hould be used to interface the MaxiMet to a PC running a terminal program 2 Then connect the MaxiMet data output to a PC and open a terminal program e g Gill Wind software note the Wind software Tools features are not applicable 3 Select the required COM port connection e g COM 39 4 Select the baud rate from the drop down menu to match the MaxiMet setting default 19200 baud 5 MaxiMet data should s...

Page 111: ...es are not applicable or Tera Term or Putty etc 3 Select the required COM port connection e g COM 39 4 Select the baud rate to match the MaxiMet setting default 19200 baud 5 MaxiMet data should scroll on screen Q 027 000 23 311 1018 8 041 025 4 011 5 0002 2017 06 01T15 21 30 0 05 2 0000 18 Q 045 000 14 330 1018 8 041 025 4 011 5 0002 2017 06 01T15 21 31 0 05 2 0000 1A 6 Type asterisk to set the Ma...

Page 112: ... website at http gillinstruments com main software html MetSet software allows you to view the MaxiMet data string graphically Before you can use MetSet check that MaxiMet is correctly connected to a Serial COM port or USB COM port on your PC Notes MetSet is compatible with RS232 and RS422 connected units set for ASCII and NMEA output only MetSet will not read SDI 12 or Modbus data strings Opening...

Page 113: ...ings Requires the use of MetView Software version 2 07 01 and higher to read MaxiMet data 7 2 1 Opening MetView Click on the MetView button on your PC s desktop or choose Start Programs MetView MetView The MetView Control Centre window is displayed as follows Connection is Receive Only Use tick if the MaxiMet connection to the PC has only transmit wires connected and a MetSet version of its curren...

Page 114: ... Connect to first device found has been selected then MetView will automatically connect to the MaxiMet on COM Port 10 connects to lowest numbers first and open the MaxiMet data view screen showing all of the MaxiMet parameters that have been enabled as outputs b If Connect to first device found is deselected then click on the Scan button MetView will then allow the required MaxiMet connection to ...

Page 115: ...will not show data if the unit is set for Modbus or SDI 12 format An example MetView screen part of is shown below GMX600 default output Connection status indicators Reading Function Green Background Tick Indicates that the MaxiMet is logging or communicating with MetView correctly as well as reading the MaxiMet firmware version Red Background Cross Indicates that the MaxiMet is not logging or con...

Page 116: ... measure MetView Averaging Options Setting Function Real Time Choose this button for no averaging 2 Min Select for on screen 2 minute rolling average for all sensor readings 10 Min Select for on screen 10 minute rolling average of all sensor readings MetView Max Min Markers Setting Function Off Maximum and Minimum Markers on all applicable gauges turned off On Maximum and Minimum Markers on all ap...

Page 117: ...do not affect the MaxiMet output or logged data For instance if the typical Temperature measurement range required is from 0 to 30 C then the temperature gauge range can be adjusted to reflect this 1 Place the mouse pointer over the Temperature display gauge and double click to bring up the Set Gauge Range screen Change Min and Max readings to the required values e g Min 0 Max 30 2 Click on Set Th...

Page 118: ...PS 021 May 2018 Graphs MetView allows data detected over the last minute last 1 hour and last 24 hours to be accessed and shown on a graph Note Data is only shown up to the time when the graph function is selected the graph is not updated once opened Data is collected from the time that MetView is opened and reading data from a MaxiMet Click on the Last Min Last Hour or Last 24 Hours buttons as re...

Page 119: ...ata file Enter the name of the file Log file header If required type some notes on the data that is to be recorded which will appear at the top of the saved data log file Log file rotation Set up segmented logging with each logged file length determined by the number entered in the text box below The figure 3600 for example means that each log file length will be 3600 lines of data The maximum num...

Page 120: ...Clear the Enable Logging check box Click on the OK button If logging has stopped the Logging button shows a red background cross instead of the green background tick see above An example of the logged MaxiMet data log file opened by Notepad is shown below 7 3 Use a Terminal Program to View the MaxiMet Data String There are many terminal programs that might be used to view the MaxiMet data string e...

Page 121: ...__________________________________________________ MaxiMet Page 121 Issue 3 Doc No 1957 PS 021 May 2018 5 Tera Term opens at 9600 baud by default but MaxiMet uses 19200 as a default so change Tera Term baud rate setting to 19200 a Select Setup from the top menu b Click on Serial Port from the drop down menu c Change baud rate to 19200 d Click on OK Data will be output as follows ...

Page 122: ...957 PS 021 May 2018 Creating a logging file 1 Select File Log 2 Select Save in destination e g Desktop 3 Add the name for the log file in File Name e g teraterm 4 Tick options as required e g Timestamp 5 Click on Save 6 The following dialog box will open on the PC desktop 7 To stop logging click on the Close button Understanding Logged Data Logged data is stored to a file with a log extension This...

Page 123: ...in Gauge Users distributors should clean the plastic dome with a soft lint free cloth and where necessary with a non aggressive cleaning solution ideally once a week Where this is not possible cleaning should be done during regularly scheduled visits to the sensor and site It is recommended that the rain gauge sensor should be cleaned every 3 months as a minimum Users can check operation of the ra...

Page 124: ...nd cap from the filter tube remove the gauze filter material carefully The external plastic funnel surface should be cleaned with clean water and a sponge this will generally remove any mildew should this have been allowed to grow Chemicals detergents should not be used if the water is to be collected for later analysis Otherwise mild detergents can be used if required The internal funnel tube tha...

Page 125: ...here are two drain slots at the base of the instrument with a gauze covering that might require periodic cleaning Carefully lift out the tipping bucket assembly to gain access to the drain slots for checking cleaning Carefully re assemble the rain gauge parts When reattaching the funnel to the base assembly check that the internal funnel does not foul onto the tipping bucket This can be checked by...

Page 126: ...ndSonic If there is any build up of deposits on the unit it should be gently cleaned with a cloth moistened with soft detergent Solvents should not be used and care should be taken to avoid scratching any surfaces The unit must be allowed to defrost naturally after being exposed to snow or icy conditions DO NOT attempt to remove ice or snow with a tool There are no moving parts or user serviceable...

Page 127: ...ce to the validity of their measurements If a user distributor notices a significant difference between the MaxiMet and their test environment reference they should contact Gill to discuss this and see if a calibration is required See individual parts above for any recommended calibration periods 8 3 Fault finding Symptom Solution No output Check DC power to MaxiMet cable and connections Check com...

Page 128: ...00 OK No fault conditions detected in measurement period 0001 Wind measurement faul t Wind Sensor faulty 0002 GPS error E g Locating Satellite fix 0004 Source for Corrected Wind Direction is GPS GPS notification 0006 GPS Location missing GPS error 0008 Tilt measurement fault Tilt error 0010 Temperature measurement fault Temperature sensor faulty 0020 Dewpoint fault If Temperature and Humidity are ...

Page 129: ...ssue 3 Doc No 1957 PS 021 May 2018 8 6 Returning Units If the unit has to be returned it should be carefully packed in the original packaging and returned to your authorised Gill distributor with a full description of the fault condition An RMA number should be obtained from Gill Instruments first if returning directly to Gill Instruments 8 7 Guarantee For terms of guarantee contact your supplier ...

Page 130: ...True Wind Speed i e using GPS Speed GPS Heading and Compass Heading when all three of GPS Speed GPS Heading and Compass Heading are available Result e g 003 17 metres second default Corrected Wind Speed shall not be computed when any one or more of GPS Speed GPS Heading and Compass Heading are unavailable Corrected Wind Speed shall not be computed when Compass Heading is unavailable The Gill Algor...

Page 131: ...age Wind Speed reading based on AVG short and AVG long settings see Page 61 Result e g 001 45 metres second default A short term average magnitude shall be computed every rwa_short_len samples as follows _ _ _ Where _ _ _ _ _ ℎ _ ℎ _ ℎ _ A long term average direction shall be computed every rwa_long_len samples as follows _ arctan _ _ Where _ _ _ _ _ ℎ ℎ _ ℎ ℎ AVGCSPEED WMO Average Corrected Speed...

Page 132: ...ed GPS Heading and Compass Heading when all three of GPS Speed GPS Heading and Compass Heading are available Result e g 116 degrees Corrected Wind Direction shall not be computed when Compass Heading is unavailable The Gill Algorithm for generating Corrected Direction based on Compass heading is as follows 1 Convert Magnitude and Direction to UV 2 Calculate applied wind in UV due to movement from ...

Page 133: ...short and AVG long settings see page 61 Result e g 145 degrees A short term average direction shall be computed every rwa_short_len samples as follows _ arctan _ _ Where _ ℎ _ ℎ A long term average direction shall be computed every rwa_long_len samples as follows _ arctan _ _ Where _ _ _ _ _ ℎ ℎ _ ℎ ℎ AVGCDIR WMO Average Corrected Direction Outputs WMO average Compass Corrected Direction wind read...

Page 134: ...Height Above Station R universal gas constant for air 8 31432 N m mol K g0 gravitational acceleration 9 80665 m s2 M molar mass of Earth s air 0 0289644 kg mol Result e g 1015 7 hectopascals default PSTN Pressure at Station Outputs Barometric Pressure at Station which can be positioned anywhere if HASTN figure set see below and page 63 Pressure at station shall be computed as ℎ Where P adjusted pr...

Page 135: ... grams of water contained in 1 cubic metre of air Note Relative Humidity also output expressed as a percent measures the current absolute humidity relative to the maximum for that temperature Absolute humidity shall be computed as Where H absolute humidity C Constant 2 16679 gK J Pw Vapour pressure in Pa T Temperature in K Result e g 08 14 g m3 TEMP Temperature Outputs MaxiMet Temperature sensor r...

Page 136: ...imetres default PRECIPS Precipitation Status Outputs Precipitation Rain Status as N or Y No or Yes Changes N to Y when total precipitation is incremented and changes Y to N when total precipitation has not incremented in the last 60 seconds Result e g N or Y SOLARRAD Solar Radiation figure Measures solar radiation over the range 0 1600 in W m2 Result e g 0243 SOLARHOURS Sunshine Hours Sunshine hou...

Page 137: ...ity is less than 13 and the Temperature is above 80 and below 112 degrees F above 26 66 and below 44 44 C R Adj 13 RH 4 SQRT 17 ABS T 95 17 where R Adj Rothfusz Adjustment T MaxiMet Temperature in degrees F RH MaxiMet Relative Humidity in percent ABS and SQRT are the absolute value and square root functions respectively If the Relative Humidity is greater than 85 and the Temperature is above 80 an...

Page 138: ... C T air temperature in C RH relative humidity Note The calculation is based on a mean sea level pressure of 1013 25 hPa according to the International Civil Aviation Organization Outside temperatures between 20 C and 50 C and RH humidity ranges of 5 and 99 wet bulb temperature shall not be computed SUNR Sunrise The time instant in the morning when the upper edge of the Sun s disc is coincident wi...

Page 139: ...he centre of the Sun is at a depression angle of six degrees 6 below an ideal horizon At this time in the absence of moonlight artificial lighting or adverse atmospheric conditions the illumination is such that large objects may be seen but no detail is discernible The brightest stars and planets can be seen and for navigation purposes at sea the sea horizon is clearly defined End of Evening Twili...

Page 140: ...n that from starlight and other natural light sources in the sky End of Evening Twilight Astronomical Defined as the instant in the evening when the centre of the Sun is at a depression angle of eighteen degrees 18 below an ideal horizon At this time the illumination due to scattered light from the Sun is less than that from starlight and other natural light sources in the sky Result e g 05 49 Not...

Page 141: ...OMPASSH Compass Heading North direction read out from the MaxiMet compass Result e g 139 degrees GPSHEADING GPS Enabled Heading GPS Heading shall be displayed with 3 integral digits Result e g 064 degrees GPSSPEED GPS Speed over Ground Velocity at which the MaxiMet unit with GPS is travelling over ground Result e g 000 10 metres second default In feet minute setting then a reading might be 00020 n...

Page 142: ...ime can be set manually by the user or updated by the GPS Module if fitted GPS time can be automatically updated every hour GPS default setting By default time will be UTC Result e g 2015 06 04T10 01 36 8 VOLT Supply Voltage DC Supply voltage measured at the MaxiMet Result e g 10 5 volts STATUS Status of MaxiMet Sensors Outputs the MaxiMet Sensors Status Code Result e g 0000 see para 8 3 WINDSTAT ...

Page 143: ...D GrouND HEX HEXadecimal I P InPut IP66 Protection Classification KPH Kilometres per Hour LF Line Feed m s Metres per Second MAG MAGnitude scalar reference to wind speed MAX MAXimum MIN MINimum MPH Miles per Hour NMEA 0183 V3 National Marine Electronics Association No Number NVM Non Volatile Memory O P Output PC IBM compatible Personal Computer PCB Printed Circuit Board ROM Read Only Memory RS232 ...

Page 144: ..._____________________________________________________________________________ __________________________________________________________________________________________________ MaxiMet Page 144 Issue 3 Doc No 1957 PS 021 May 2018 9 3 Electrical Conformity ...

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