User`s guide

Chapter 2 __________________________________________________________ Product Overview
VAISALA_______________________________________________________________________ 63
The CNR1 sensor is delivered with an additional junction box to enable
the wiring to the Vaisala data loggers. The junction box includes factory
made cables.
0401-181
Figure 56 Junction Box for the CNR1 Sensor
Net Solar Radiation Sensor
0105-024
Figure 57 Net Solar Radiation Sensor QMN101
Net Solar Radiation Sensor QMN101 is designed for routine
measurements of net radiation. Net radiation is the balance between
incoming and outgoing radiation in outdoor conditions. The sensor
measures solar and far infra-red radiation balance.
The sensor is based on a thermopile and it consists of two Teflon-
coated, weather-resistant black conical absorbers. The voltage output is
proportional to the net radiation. Contrary to common instruments,
QMN101 is virtually maintenance-free as it does not require fragile
plastic domes.