.
Below is a brief description of the accessories available for SGR series pyrgeometers. Detailed information can be found on our
website, where the brochures and manuals for these accessories can be viewed and downloaded.
3.1 Diffuse radiation measurement
For measuring diffuse radiation a shading device is required. Kipp & Zonen can offer several options for SGR pyrgeometers:
Shadow ring CM121B for a SGR3 or an unventilated SGR4
Shadow ring CM121C for a ventilated SGR4
This shadow ring needs to be adjusted manually every 3-5 days and corrections made for the sky obscuration by the ring.
An automated and more accurate way to measure diffuse radiation is to use an automatic sun tracker fitted with a shading
mechanism:
SOLYS2 sun t shading ball assembly
SOLYS Gear Drive sun t shading ball assembly
3.2 Ventilation
To further improve measurement accuracy of the SGR4 pyrgeometers the CVF4 ventilation unit can be used. CVF4 has a tacho
output to monitor the fan speed and 5 or 10 Watt heater. The advantages of a CVF4 are:
Lower thermal offsets
No precipitation or condensation on the window
Less dirt on the window
Frost, snow or ice can be melted
Less frequent cleaning required
3.3 Mountings
For mounting pyrgeometers the following plates and brackets are available:
Mounting rod for SGR3
CMF1 mounting fixture with rod
for mounting one or two unventilated SGR4’s
CMF4 mounting plate with rod
for mounting one or two ventilated SGR4’s
CMB1 mounting bracket
to fix and adjust a mounting rod to a mast, pole or wall
Adjustable tilt mounting kit
allows tilting of a SGR pyrgeometer, It has a clear scale for setting the desired angle.
3.4 Cables
Different cable lenghts with pre-wired waterproof connector plug, or a connector only can be supplied.
10 m cable with connector
25 m cable with connector
50 m cable with connector
Connector only, no cable
3. Accessories
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