Casella CEL Automatic weather station - Manual (Page 3)

Contents . . . . . . . . . . . . . . . . . . . . Page
Section 1: General Information . . . . . . . . . . . 5
1. INTRODUCTION TO THE AUTOMATIC WEATHER STATION . . . . 7
1.1 Features . . . . . . . . . . . . . . . . . . 7
1.2 Applications . . . . . . . . . . . . . . . . . . 7
2. ASSEMBLY & COMMISSIONING . . . . . . . . . . . . . . . . . 9
2.1 Transporting The System . . . . . . . . . . . . . . . 9
2.2 Siting . . . . . . . . . . . . . . . . . . 9
2.3 System Enclosure . . . . . . . . . . . . . . . . . . 10
2.3.1 Frame Mounted Systems . . . . . . . . . . . . 10
2.3.2 Wall Mounting . . . . . . . . . . . . . . . . . 10
2.4 Lighting Protection . . . . . . . . . . . . . . . . . . 10
2.5 Fitting & Deploying Sensors . . . . . . . . . . . . . . 11
2.6 Wiring . . . . . . . . . . . . . . . . . . 12
2.6.1 System Wiring . . . . . . . . . . . . . . . . . 12
2.6.2 Sensor Wiring . . . . . . . . . . . . . . . . . 12
2.6.3 Wire Preparation and Insertion . . . . . . . . . 13
2.7 System Power Supply . . . . . . . . . . . . . . . . . 14
2.7.1 Solar Power Installations . . . . . . . . . . . . 14
2.7.2 Direct Landline Connected Systems . . . . . . . 14
2.7.3 Mains Power Option . . . . . . . . . . . . . . 15
2.7.4 Replacement Battery Option . . . . . . . . . . 15
2.7.5 Conserving Battery Power . . . . . . . . . . . 16
2.8 UHF / VHF Radio Telemetry Option . . . . . . . . . . . 16
2.9 Activiating Remote Weather Stations . . . . . . . . . . 17
2.10 Switching On . . . . . . . . . . . . . . . . . . 17
3. SENSORS USED WITH AUTOMATIC WEATHER STATIONS . . . . 19
3.1 Combined Air Temperature and Relative Humidity Sensor 19
3.1.1 Temperature Sensor Specification . . . . . . . . 19
3.1.2 Humidity Sensor Specification . . . . . . . . . 20
3.1.3 Air Temperature & Humidity -
Sensus Channel Configurations . . . . 20
3.2 Wind Speed Sensor . . . . . . . . . . . . . . . . . . 20
3.2.1 Wind Speed Sensor Specification . . . . . . . . 20
3.2.2 Wind Speed Sensor -
Sensus Channel Configuration . . . . 21
3.3 Wind Direction Sensor . . . . . . . . . . . . . . . . . 21
3.3.1
Wind Direction Sensor Specification . . . . . . . 21
3.3.2 Wind Direction Sensor -
Sensus Channel Configuration . . . . 22
3.4 Global Solar Radiation Sensor . . . . . . . . . . . . . 22
3.4.1 Global Solar Radiation Sensor Specification . . . 22
3.4.2 Solarimeter - Sensus Channel Configuration . . . 23
3.4.3 Sunshine Duration . . . . . . . . . . . . . . . 23
3.5 Standard Barometric Pressure Sensor . . . . . . . . . . 23
3.5.1
Standard Barometric Pressure Sensor
Specification . . . . . . . . . . . . . 23
3.5.2 Barometer - Sensus Channel Configuration . . . 24
3.6 Precision Barometer . . . . . . . . . . . . . . . . . . 24
3.6.1
Precision Barometer Specification . . . . . . . . 24
Contents
Page 3 of 34
Automatic Weather Station
Assembly & Commissioning Handbook