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LLAC4

Four-Channel, Low-Level

AC Conversion Module

Instruction Manual

23.4.12

Copyright

©

2004-2012 Campbell Scientific Inc.

Printed under Licence by Campbell Scientific Ltd.

CSL 124

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Содержание LLAC4

Страница 1: ...LLAC4 Four Channel Low Level AC Conversion Module Instruction Manual 23 4 12 Copyright 2004 2012 Campbell Scientific Inc Printed under Licence by Campbell Scientific Ltd CSL 124 ...

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Страница 3: ...he repair is under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repairs can be given on request It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment in support of this policy a Declaration of Hazardous Mate...

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Страница 5: ...al cell phones and aerials may also not be applicable according to your locality Some brackets shields and enclosure options including wiring are not sold as standard items in the European market in some cases alternatives are offered Details of the alternatives will be covered in separate manuals Part numbers prefixed with a symbol are special order parts for use with non EU variants or for speci...

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Страница 7: ...e PDF reader bookmarks tab for links to specific sections 1 General Description 1 2 Specifications 2 3 Measurements 2 4 Wiring 3 5 Program Examples 4 Figures 1 LLAC4 four channel low level AC conversion module 1 2 LLAC to TTL 3 Tables 1 Sensor Output Frequencies 2 2 Control Port Compatibility 3 ...

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Страница 9: ...AC signals to the logic levels datalogger control ports require The LLAC4 is often used to measure up to four anemometers and is especially useful for wind profiling applications Compatible wind sensors include but are not limited to the 05103 Wind Monitor 05106 Wind Monitor MA 05305 Wind Monitor AQ 03001 Wind Sentry Set and 03101 Wind Sentry Anemometer LLAC4 MADE IN USA SN P1 P2 P3 P4 12V G D1 D2...

Страница 10: ...output where the frequency is proportional to the speed of rotation This AC signal is induced in a stationary coil by a magnet mounted on a rotating shaft The datalogger s pulse channels can read this low level AC signal directly The LLAC4 has signal conditioning to convert the low level AC to a 0 to 5 volt square wave that can be measured on the datalogger s control ports The frequency response o...

Страница 11: ...be appropriate choices 4 Wiring Most sensors that have a low level AC output will have three wires signal reference and drain The signal wire should go to P1 P4 on the LLAC4 and the reference and drain wires to a on the LLAC4 The LLAC4 also requires that 12 V be applied to its 12 V terminal and G This power should come from the datalogger or the datalogger s power supply A low level AC signal on P...

Страница 12: ...ery G Black G G D1 White C5 PLL D2 Green C6 C1 SDI 12 D3 Yellow C7 C2 D4 Blue C8 P_SW G Clear G G CR1000 Example Program CR1000 Series Datalogger LLAC4 Sample Program Record 10 minute average wind speed in m s for 1 RM Young 05103 L Wind Monitor Anemometer 1 RM Young 05106 L Marine Wind Monitor Anemometer 1 RM Young 05305 L AQ Wind Monitor Anemometer 1 RM Young 03101 L Wind Sentry Anemometer Decla...

Страница 13: ...ries Datalogger LLAC4 Sample Program Record 10 minute average wind speed in m s for 1 RM Young 05103 L Wind Monitor Anemometer 1 RM Young 05106 L Marine Wind Monitor Anemometer 1 RM Young 05305 L AQ Wind Monitor Anemometer 1 RM Young 03101 L Wind Sentry Anemometer Declare Public Variables Public RMY05103WS Public RMY05106WS Public RMY05305WS Public RMY03101WS Define Data Tables DataTable WindSpd 1...

Страница 14: ...LLAC4 Four Channel Low Level AC Conversion Module 6 RMY03101WS 0 0 EndIf CallTable WindSpd NextScan EndProg ...

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Страница 16: ...berta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbellsci cc Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www campbellsci co uk sales campbellsci co uk Campbell Scientific Ltd Franc...

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