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INSTRUCTION MANUAL

for

WIND SPEED & DIRECTION TRANSMITTER

MODEL A70-SDL

DOCUMENT # 1278, Version D

A70-SDPL-N12 in NEMA 12 Box

A75-104 Anemometer

A75-302 Wind Vane

Содержание A70-SDL Series

Страница 1: ...1 INSTRUCTION MANUAL for WIND SPEED DIRECTION TRANSMITTER MODELA70 SDL DOCUMENT 1278 Version D A70 SDPL N12 in NEMA 12 Box A75 104Anemometer A75 302 Wind Vane...

Страница 2: ...Itmaybe supplied in a steel NEMA 12 JIC box for inside deployment or in a steel NEMA 4 box when a weather proof box is required Thetransmitterconvertstheinformationfromthe sensors to 4 20 ma signals...

Страница 3: ...RMYoungWindMonitor Output Speed 4 20 ma Azimuth 4 20 ma Accuracy Electronics 1 Sensor see separate specs A96 100PSurgeArrestor Loop Resistance 300 ohms Max Temperature Range Electronics 0 60o C standa...

Страница 4: ...mast0 50 outsidediameterand 60 feet of cable The wind vane is directly coupled to a precision conductive plastic potentiometer located in the main body An analog voltage linearly propor tional to wind...

Страница 5: ...5 Figure 3 Sensor Mounting...

Страница 6: ...6 Figure 4 Poor Wind Sensor Placement OverVertical Wall...

Страница 7: ...centerofrotation Apreferredmountingwhichiscommonlyusedisa telescopictowerforinstallationsuptofortyorfifty feethigh AtowercommonlyusedforTVantenna support consistingofconcentricpiecesoftubing approxima...

Страница 8: ...ndicate 15 degrees when pointed atTrue North If the deviation is East then subtract it from 360 to obtain the reading for True North The base of the wind vane has the letter N with an arrow molded int...

Страница 9: ...ive terminal Tighten wind vane terminalto3inchpounds 3 Connect the Black wire of the signal cable to the DirectionVane Signal terminal Tighten wind vaneterminalto3inchpounds 4 Connect the Red wire fro...

Страница 10: ...10 Figure 5 ComponentLayout...

Страница 11: ...n The conditionquicklyclearswhensunshineheatsthe anemometercausingtheicetomelt Thecondition may persist for hours or days in the absence of bright sunshine No permanent damage is done to the anemomete...

Страница 12: ...rs per Second I Loop current in mA S I 4 X 50 16 Formula 3 Figure 7 Graph ofWind SpeedTransferFunction Figure 6 Graph of Wind SpeedTransferFunction For Model A70 SDL E the wind speed may be de termine...

Страница 13: ...eters Per Hour I Loop current in mA S I 4 X 160 16 Formula 5 Figure 9 Graph ofWind SpeedTransferFunction 0 15 30 4 12 20 Loop Current in mA Wind Speed Meters per Second For Model A70 SDL M2 the wind s...

Страница 14: ...I Loop Current in ma D I 4 X 360 16 Formula 7 Figure 11 Graph ofWind DirectionTransferFunction 360o Range 0 50 100 4 12 20 Loop Current in mA Wind Speed Kilometers per Hour For Model A70 SDL K2 the wi...

Страница 15: ...esistor 0 4 8 12 16 20 0 4 1 2 2 0 Voltage Loop Current milliamperes N E S W N E S 0 180 360 540 Loop Current in mA 4 12 20 Wind Azimuth Degrees 540 Degree Wind Direction Scale Thewinddirectionmaybede...

Страница 16: ...dshould adjustmentbenecessaryinthefuture WIND SPEED TRANSMITTER The wind speed section consists of a frequency to current converter Afunction generator frequency counter and milliampmeter are required...

Страница 17: ...there is fuel in the tank before replacing theengine Iftheelectronicequipmentdoesn t functionverifythatithaspowerandisturnedon Systemscontainingpartswhichcanbequickly interchanged are easy to trouble...

Страница 18: ...e too high Transmitterfailure Loop Current Constant 4 ma FailureDescription Anemometercableshorted Anemometer coilopen Loop Current Constant 20 22 ma FailureDescription Powerlineinterference Open anem...

Страница 19: ...t INCORRECT DIRECTION INDICATION Check the response with wind vane orientations of North South East and West The Northern orientationisproducedwhenthevaneisalignedwith the mark on the edge of the hous...

Страница 20: ...he signal cable Disconnect cable fromtranslatoranduseohmmeter Afluctuating resistancewillresultiftheanemometerturnsduring the test A resistance greater than 1000 ohms indicates an open circuit break i...

Страница 21: ...ed removed orotherwisechanged d the damage has not been caused by acts of nature includingwindstormandhailbeyondthosespecified aswithintherangeofoperatingconditions e the damage has not been caused by...

Страница 22: ...ription of the problem 4 Iftheequipmentispackagedinaplasticcase wrap itinaluminumfoilorotherconductivematerial This willprotectitfromstaticelectricity aswellasprevent thepackingmaterialfromjammingmech...

Страница 23: ...Stub Mast _______ 1 S Mast _______ 1 60 foot Anem Cable _______ 1 60 foot Wind Vane Cable _______ 1 Instruction Manual _______ 1 Certificate of _______ Calibration IMPORTANT Please check your order o...

Страница 24: ...24 WWW COMPTUS COM Phone 603 726 7500 Fax 603 726 7502...