HT Instruments HT305 Manual De Instrucciones página 16

1. PRELIMINARY
INSTRUCTIONS
•
Do not subject the protection glass of the solar cell to mechanical
shock to prevent any damage.
•
Avoid rubbing the protection glass with abrasive bodies.
•
Do not apply any voltage to the accessory's outputs.
•
Do not subject the output connector or the connection cable to
strong mechanical shock.
•
Carefully clean the glass with a soft humid cloth before carrying out
measurements.
•
Do not use alcohol, acetone, or solvents to clean the glass.
•
Install the accessory in a position free from obstacles which could
cast shadows or cause reflections of light onto the sensor different
from the ones the PV modules to be tested are exposed to
If the accessory is to be used to measure irradiance in
photovoltaic installations:
•
Assemble the sensor is a parallel position with respect to the surface
of the panels, with a maximum error of ± 2°. If the sensor is not
perfectly parallel to the surface of the modules, the measured result
could be altered.
•
Use the relevant fastening bracket provided with the accessory and
install it in a position which allows the cell to be hit by the same
radiation the PV modules/strings are exposed to (typically central
position with respect to the panels' axis). Once the bracket is in
position, tighten the fastening screws and finally check that sensor
and module are parallel.
•
Expose the sensor to the testing conditions (irradiance, temperature,
tilt angle) for at least 1 minute before carrying out any measurement,
in order to prevent using the sensor before it has reached the
operating conditions
18
HT305 - HT304k
CAUTION