Instruction manual

Appendix D. CNF4 Heater/Ventilator
2. Attach the heater/ventilator unit unto the bottom of the CNR4 sensor,
using the three pan-head screws and washers, as shown in FIGURE D-2.
Make sure that the pyranometer and the pyrgeometer windows are not
scratched during the installation.
FIGURE D-2. Attaching the CNF4 to CNR4 using pan-head screws and
washers
D-4