Owner's manual

Model 020C Wind Direction Sensor

1. Introduction

The Model 020C Wind Direction Sensor measures azimuth with research-

grade accuracy and precision. Campbell Scientific recommends the 020C for

wind farm power performance research, such as on eighty- and ninety-meter

met towers. The 020C is especially suited to applications requiring a low

starting threshold, a high damping ratio, or a short delay distance.

Before installing the 020C, please study

• Section 2, Cautionary Statements

• Section 3, Initial Inspection

• Section 4, Quickstart

2. Cautionary Statements

• The 020C is a precision instrument. Please handle it with care.

• If the 020C is to be installed at heights over six feet, be familiar with tower

safety and follow safe tower-climbing procedures.

• Danger — Use extreme care when working near overhead electrical wires.

Check for overhead wires before mounting the 020C or before raising a

tower.

3. Initial Inspection

• Upon receipt of the 020C, inspect packaging and contents for damage.

File damage claims with the shipping company.

• The model number and cable length are printed on a label at the

connection end of the cable. Check this information against the shipping

documents to ensure the expected product and cable length are received.

4. Quickstart

4.1 Installation

Figure 4-1 shows the 020C installed with a CM220 Right Angle Mounting Kit.

Please review Section 7, Installation, for complete guidelines. Install the 020C

using:

• 28798 020C Mounting Bushing

• CM220 Right-Angle Mounting Kit, or

• 1049 ¾ x 1 inch NURAIL Crossover Fitting