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MKIII™

-MB 

 

USER’S GUIDE

 

 

09/18/18 

Rev. 3 

Summary of Contents for MKIII-MB

Page 1: ...MKIII MB USER S GUIDE 09 18 18 Rev 3 ...

Page 2: ... 2018 by RainWise Inc All rights reserved No part of this work may be reproduced in any form except by written permission of the publisher All rights of translation are reserved MKIII is a trademark of RainWise Inc ...

Page 3: ... 8 COMMUNICATIONS 8 SCALING 8 UNSUPPORTED FIELDS 8 POWER MANAGEMENT 8 MODBUS MAP 9 CHANGING THE MODBUS DEVICE ADDRESS 10 CHANGING THE BAUD RATE 10 SOFTWARE FIRMWARE UPDATES 10 MINIMUM SYSTEM REQUIREMENTS 11 RS 485 11 Software 11 Sensor Assembly 11 Enclosure 11 Ambient Air Temperature Sensor 12 Electronics 12 Physical 12 HARDWARE SPECIFICATIONS 13 OPERATING ENVIRONMENT 13 AMBIENT AIR TEMPERATURE SE...

Page 4: ... 4 RELATIVE HUMIDITY 13 BAROMETRIC PRESSURE 13 ANEMOMETER REED SWITCH 13 WIND DIRECTION 13 WIND SPEED 14 LIQUID PRECIPITATION 14 SOIL TEMPERATURE 14 WARRANTY 15 ...

Page 5: ...ould be no closer than 10 times any obstruction s height and should be placed away from any dark heat absorbing surface When roof mounting the sensor assembly the unit should be mounted toward an edge of the roof preferably on the prevailing wind side of the building and should be at least 2 1 2 feet above the roofline Avoid locating the station near any heat sources such as chimneys or vents INST...

Page 6: ...TE The station is set for use in the northern hemisphere by default If using the station in the southern hemisphere you must place switch 3 located on the motherboard inside the enclosure in the ON position ...

Page 7: ...CONNECTING RS 485 The MKIII MB is supplied with a half duplex RS 485 serial port Wiring connections are made using the 4 pin screw terminal inside of the MKIII MB electronics enclosure Cable is not supplied with the unit The RS 485 lines can be terminated with a 120 ohm resistor This can be enabled by moving the termination jumper located inside the unit to the ON position This requires removing t...

Page 8: ...s on a reboot and will roll over at 65536 counts UNSUPPORTED FIELDS The register map reserves registers for all combinations of sensors supported by the Rainwise stations Not all will be available on any one system Sensors fields that are not supported will contain the value 0x8000 Some fields require the purchase of additional sensors The values reported by fields that don t have valid sensors in...

Page 9: ...ind Direction int16 Degrees 1 0 Measured 8 Wind Speed 5min Avg int16 m s 0 1 Measured 9 Wind Direction 5 min Avg int16 Degrees 1 0 Measured 10 Wind Gust 5 min int16 m s 0 1 Measured 11 Wind Gust Direction int16 Degrees 1 0 Measured 12 Rainfall int16 Counter 1 0 Measured 13 Aux Temperature 1 int16 Degrees C 0 1 Measured 14 Aux Temperature 2 int16 Degrees C 0 1 Measured 15 int16 0x8000 16 int16 0x80...

Page 10: ... will change the baud rate to 19200 SOFTWARE FIRMWARE UPDATES The software or firmware in the MKIII MB can be updated or changed using the RS 485 port Make sure you read the update instructions carefully and be sure you are installing the correct software As with all updates there are risks associated with changing the flash memory Updates are loaded using a Windows based program called IAP flash ...

Page 11: ...MB is designed to work with an RS 422 485 compliant host A terminal emulator program is required to change settings Material Specifications SENSOR ASSEMBLY RoHS Compliant Mast Polyvinyl Chloride Heat Shields Acrylonitrile Butadiene Styrene Insolation Sensor Bracket Delrin Hardware Stainless Steel and Nylon Locknut Foam Gasket Vinyl and Acrylic ENCLOSURE RoHS Compliant IP65 Rated Outdoor Enclosures...

Page 12: ... 12 AMBIENT AIR TEMPERATURE SENSOR RoHS Compliant ELECTRONICS RoHS Compliant PHYSICAL Packaged Weight 7 lbs Packaged Dimensions 6cm x 20 3cm x 20 3cm 10 25 x 8 x 8 ...

Page 13: ...158 F Range 0 100 Accuracy 2 for 10 RH 90 at 25 C 77 F 4 for 10 RH 90 at 25 C 77 F Resolution 1 BAROMETRIC PRESSURE Operational Temperature 40 85 C 67 185 F Range 300 1100 mbar 8 86 32 49 inHg Accuracy 0 5 mbar between 700 1100 mbar at 25 C 0 015 inHg between 20 67 32 49 inHg at 77 C Resolution 0 34 mbar 0 01 inHg ANEMOMETER REED SWITCH Operational Temperature 40 85 C 40 185 F Anemometer Extension...

Page 14: ...Reading Resolution 0 045 m s 0 1 mph Threshold 0 65 m s 1 45 mph LIQUID PRECIPITATION Operational Temperature 0 85 C 0 185 F Range 0 762 mm hr 0 30 in hr Accuracy 2 at 25 4 mm hr 2 at 1 in hr Resolution 0 254 mm 0 01 in SOIL TEMPERATURE Range 55 85 C 67 185 F Accuracy 0 2 C at 25 C 0 4 F at 77 F Resolution 0 056 C 0 1 F ...

Page 15: ...repair service and will not reimburse the consumer for damage resulting from warranty service performed by a non authorized repair service No responsibility is assumed for any special incidental or consequential damages To return a unit under this warranty call 800 762 5723 within the continental US or 207 288 5169 The service department will document the need for repair replacement and arrange su...

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