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Sensor Wiring

Service & Recali

Before returning parts please co

bration

ntact Delta-T or your local agent for instructions.

aceable in the field.

Note: the Windvane, though connected to
GP1 terminal Temp3, is actually read as a
voltage output sensor (0-2.5V equals 0-360
degrees). The internal circuit differs from the
standard MetOne O34B, see panel at right.
See also

D-034B-CA Technical Manual

on the Delta-T Software and Manuals CD.

Wind speed and direction D-034B-CA

Recalibrate

: every year.

Service

: 6-12

months: look & listen to see if the vane and
cups are running freely, are undamaged, and
are not loose. 12-24 months: replace
anemometer bearings. 24-36 months:
complete factory overhaul of sensor.
Most parts are repl

10K

5V (ref)

GND

Temp3 (IN)

Temp3 (GND)

green

yellow

Windvane circuit schematic

white

Colour

Function

GP1 connection

Black

WS common

GND

Pin 4

Green

WD Common

Temp3 (GND)

White

WD +REF

+5V (ref)

White/brown

Shield

GND

RH Signal -

CH2 (-)

Blue

Air temp +

Temp4 (IN)

Yellow

Air Temp -

Temp4 (GND)

Red

Power V+

CH2 (PWR)

Black Power

V-

CH2

(GND)

Screen

Shield

GND

either

Switch NO

Event 6

either

Switch common

GND

ion

Red

Signal

CH1 (+)

Black

5V power

+5V (ref)

Clear

Ground

CH1 (GND) + CH1(-)

Rain

and direction

ranometer

nl-CA

rature

Wind speed & Direction:

Pin 1

Red

WS signal

Event 5

Pin 2

Pin 3

Yellow

WD signal

Temp3 (IN)

D-O34B-CA
Wind speed

Pin 5

Temperature & RH

White

CH2 (+)

Green

RHT3

Tempe

Rainfall

Solar Radiat

RG2

D-PYRPA-C

and RH

Page

Содержание WS-GP1

Страница 1: ...WS GP1 Weather Station WS GP1 Weather Station for wind speed and direction relative humidity air temperature rain and solar radiation Quick Start Guide Version 1 0 Delta T Devices Ltd ...

Страница 2: ...o Wind speed and direction sensor D 034B CA RH and air temperature sensor RHT3nl CA Solar energy flux sensor PYRPA 03 Rain gauge RG2 WS CA You should also find the following Sensor user manuals GP1 Quick Start Guide and screwdriver Allen keys 5 64 inch for the wind vane and 2 5 mm for light sensor levelling mount Spanner for the mast GP1 RS232 serial cable Delta T Software and Manuals CD including...

Страница 3: ...e sensors the measured wind speed decreases as the canopy approaches Sensors are also influenced by the c local thermal and humidity microclima above the crop There are no simple rules to follow but be aware of the following Clothes lin hanging te e effect vegetation upwind may ater or glacier is surrounded by a rce er f lacing objects directly under the air humidity and temperature sensor such as...

Страница 4: ...oss arm to the mast using the U bolts and box wrench and make it horizontal 5 Orient the wind vane Find true north It is best to set the wind direction sensor to true north not magnetic north Compass Method Get a compass and the local angle of magnetic declination either from a map local airport or use an online calculator e g http www ngdc noaa gov seg geomag jsp Attach wind vane South in the nor...

Страница 5: ...ime Star Method Find the North Star or the So Whichever method you use establish wher Orient the wind vane 1 Ensure that the lo place on the hub The wind vane cannot rotate and if read the sensor should indicate 180 degr south 2 Using the spanner provided loosen the cla holding the O34B to 3 Rotate the housing b erweight and the black arrow on the housing actually south and the wind vane ta 4 Tigh...

Страница 6: ...s s and modify them as r N a eem necessary For definitions e g for the various wind missing to reinstall this program Click Change on th elect Fil Program window and 3 lick on and examine the Air Wind Sun and Ra xamine the context sensitive online He 5 ote the default 1 hour Recording Rate in the Main tab ampling rates for individual sensors in the Sensor tab equired 6 ote the various recording op...

Страница 7: ...ndow and click Start to commence logging For help diagnosing sensor behaviour from the Help menu Alt H select Document tation Document Library W 10 Collect and Save Logged Data 1 d data in the logger will be retrieved and w seconds to download the data et file viously saved dataset file 4 et file as a ASCII file for importing into other programs open the file s selecting the appropriate file type ...

Страница 8: ...click on the chart regi enu of display options in Show all Charts and Det e also the online Help ample Dataset From the Help menu Alt H s cument Library Alt D a S GP1 to display the cument Lib Double click on the file Exa 1 Weather Station data d play a ty Examine the display options a ove No ar te Statistical symbols e only available if 2007 Delta T Devices Ltd Average Time of minimum Maximum Tim...

Страница 9: ... battery may last 90 days To increase this reduce the reading frequency and or use a lithium battery or external lead acid battery The RH sensor dominates the current consumption reducing RH sensor readings to once every 5 minutes will more than double battery life You might expect an external 10 Ahr lead acid battery to last longest but internal self discharge may limit this to 12 months at 25 C ...

Страница 10: ...rical mechanical Wind direction Accuracy 0 to 356 0 to 360 Starting threshold 0 4 m s 1 0 9 mp Damping rat h io 25 sensor and logger 0 5 C at 3 m s Resolution 0 5 Temperature Accuracy at 25 C 0 2 C IP65 1 1 0 C at 2 m s 1 2 0 C at 1 m s 1 RH 2 RH 5 to 95 RH 2 5 RH 5 and 95 RH Envronmental 20 to 80 C 0 100 RH IP65 Response time 10s 90 of scale for a step change from 11 to 75 RH Rainfall Sensitivity...

Страница 11: ...4 months replace anemometer bearings 24 36 months complete factory overhaul of sensor Most parts are repl 10K 10K 5V ref GND Temp3 IN Temp3 GND green yellow Windvane circuit schematic white 1M 1K Colour Function GP1 connection Black WS common GND Pin 4 Green WD Common Temp3 GND White WD REF 5V ref White brown Shield GND RH Signal CH2 Blue Air temp Temp4 IN Yellow Air Temp Temp4 GND Red Power V CH2...

Страница 12: ...2 in the first year 1 in the second year and 0 5 in the third No adjustment of the RH or temperature element is possible Inaccurate sensors must be replaced with new module which can be plugged in the field Replace every two years in clean atmospheric conditions or every year if the atmosphere is polluted Replacing the RH Sensor Note the RHT3nl uses a 10K Betatherm 10K3A1B thermistor and a 6 plate...

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