Related Manuals for Campbell MMW-005
Summary of Contents for Campbell MMW-005
- Page 1 MMW-005 Solid State Wind Sensor Dec 2010 Copyright © 2008 Campbell Scientific (Canada)Corp.
- Page 2 WARRANTY AND ASSISTANCE This equipment is warranted by CAMPBELL SCIENTIFIC (CANADA) CORP. (“CSC”) to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. ***** Batteries are not warranted.
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Page 3: Table Of Contents
Output String According to NMEA 0183:............7 6. CR1000 Example Program ..............7 7. Maintenance ..................9 TABLE OF FIGURES Figure 1 MMW-005 Sensor & Mounting Base .........2 Figure 2 Integrated Circuit ..............2 Figure 3 C2410 Mounting Bracket ............4 Figure 4 Mounting Base Separated from Sensor ........5 Figure 5 Mounting Base Attached............5... -
Page 4: Introduction
MMW-005 Solid State Wind Sensor __________________________________________________________________________________________ Introduction The MMW-005 is a solid state wind sensor type (Figure 1), which uses a specialized chip to measure wind speed and wind direction based on the temperature differences across the chip surface. These temperature differences are processed by a small microprocessor in the sensor, resulting in a serial signal for the indication of wind direction and wind speed. -
Page 5: Principle Of Operation
MMW-005 Solid State Wind Sensor __________________________________________________________________________________________ Principle of Operation The Solid State Wind sensor uses a temperature sensitive element to measure wind direction and wind speed. The sensing element shown in Figure 2 consists of a specially designed ceramic plate which incorporates an integrated circuit (IC). -
Page 6: Installation
Parity: none Installation The MMW-005 is mounted to either a horizontal or vertical pipe with the use of the C2410 Mounting Bracket (Figure 3). The C2410 can be mounted to a pipe with and outside diameter ranging from 0.75 inches to 2.0 inches. -
Page 7: Figure 4 Mounting Base Separated From Sensor
Figure 5 Mounting Base Attached Before reattaching the MMW-005 to the mounting base make note of the Orientation mark (Figure 6) on the top of the MMW- 005. This mark will need to be orientated to True North in order to provide an accurate measurement of wind direction. -
Page 8: Wiring
(Figure 7). Figure 7 MMW-005 Mounted The MMW-005 and C2410 can now be mounted to the intended pipe using the provided v-bolt and hardware. Consideration should be given to the proper siting of the sensor to ensure that all potential obstacles are avoided. -
Page 9: Output String According To Nmea 0183
= Unit for wind speed [m/s] = Data always valid for MMW-005 CR1000 Example Program The MMW-005 is measured with the use of a datalogger Control Port. The Control Port receives the RS422 data string that the MMW-005 automatically sends approximately once per second. - Page 10 MMW-005 Solid State Wind Sensor __________________________________________________________________________________________ conversion from meters per second to kilometer per hour. Refer to Table 2 for conversion factors for wind speed. Table 2. Wind Speed Conversion Factors Units Conversion Factor Kilometers per Hour Knots 1.944 Miles per Hour 2.237...
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Page 11: Maintenance
MMW-005 Solid State Wind Sensor __________________________________________________________________________________________ NextScan EndProg Maintenance The wind sensor has no moving parts, and requires no other maintenance than the cleaning of the sensor itself. The time interval for cleaning will depend on the installation site.