085A-9800 Rev A Page 4
Table of Contents
1. GENERAL INFORMATION .................................................................................... 5
1.1. Description ........................................................................................................................... 5
1.2. 085A Options ........................................................................................................................ 7
1.2.1. Radiation Shield Compatibility Option: ............................................................................ 7
2. SENSOR SITING .................................................................................................... 7
3. INSTALLATION ...................................................................................................... 8
3.1. Mounting Instructions ............................................................................................................ 8
3.2. Wiring Instructions ................................................................................................................ 9
4. OPERATIONAL CHECK-OUT AND CALIBRATION ........................................... 10
4.1. Relative Humidity Sensor Check-out ................................................................................... 10
4.2. Limitations of RH Measurements at Below Freezing Temperatures ..................................... 10
4.3. Temperature Sensor ........................................................................................................... 11
4.4. Temperature Table ............................................................................................................. 12
4.4.1. Temperature to Resistance Table (Celcius) .................................................................. 12
4.4.2. Temperature to Resistance Table (Fahrenheit) ............................................................. 13
4.5. Temperature Sensor Data Logger Connection .................................................................... 15
4.6. General Maintenance Schedule .......................................................................................... 16
4.7. 085A Relative Humidity Sensor Maintenance and Calibration .............................................. 16
4.8. Sensor Maintenance ........................................................................................................... 16
4.8.1. Sensor Element ............................................................................................................ 16
4.8.2. Spare Parts .................................................................................................................. 17
5. Operational Specifications ................................................................................. 18
