Hukseflux VU01, User Manual, Page: 12 / 25

VU01 manual v1614 12/25
5 Installation of VU01
5.1 Installation of the ventilation unit
Once the VU01 cover is removed, the ventilation unit can be mounted to a flat mounting
surface using the supplied VU01 mounting hardware.
Optionally a large hole can be made by the user in the mounting surface under VU01 if
obstruction of the airflow from the sides is expected, for example by snow buildup.
The hole diameter should not exceed 120 x 10
-3 m.
5.2 Installation of the sensor
 Remove the pyranometer ’s or pyrgeometer’s sun screen .
 Attach the sensor mounting plate to the bottom of the sensor using two M5x10
screws (See Figure 5.2.1). A T25 torx key to do so is included with VU01.
 Affix the sensor with the sensor mounting plate to the ventilation unit using two
M5x10 screws (See Figure 5.2.1 for placement of the gasket).
 The sensor cable connector should be positioned alongside the engraved “cable”
marking on the VU01 base.
 The VU01 levelling feet can be used to fine-tune the sensor levelling. Even with the
VU01 cover installed (see next page), the sensor can still be levelled since the
instrument’s bubble level is still visible below the VU01 cover.
Figure 5.2.1 VU01 base with gasket, sensor mounting plate and SR20 pyranometer: the
instrument is affixed to VU01 using four M5x10 screws.