DeltaOHM HD31, Руководство по эксплуатации

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HD31
- 40 -
V1.6
4.6 VP472
MODULE FOR THE CONNECTION OF PYRANOMETERS AND ALBEDOMETERS
SICRAM VP472 module allows pyranometers and albedometers to be connected to the instru-
ment.
When connecting a pyranometer to the module, the instrument displays:
• the mV signal generated by the thermopile;
• the global radiation in W/m
2
.
When connecting an albedometer to the module, the instrument displays:
• the mV signal generated by the thermopile detecting incident light;
• the mV signal generated by the thermopile detecting reflected light;
• the net radiation, in W/m
2
, defined as the difference between the incident global radia-
tion and the diffuse global radiation.
• The albedo, defined as the relation between the reflected global radiation and the inci-
dent global radiation.
VP472 module is equipped with a 6-pole terminal block with screw connectors. Connect the py-
ranometer or the albedometer respecting the correct polarity of signals. The figures below
show the connection of the pyranometer (LP PYRA 02, LP PYRA 03, etc.) and of LP PYRA 05
and LP PYRA 06 albedometers. In case a single-output pyranometer is attached, connect only
input 1 of the module (incident radiation) and make a bridge between inputs 2. Connect the
cable shield to the ground terminal indicated by the “ground” symbol.
Fig. 4.6.1: connecting a pyranometer
Fig. 4.6.2: connecting LP PYRA 05 albedometer
Red (+)
Blue (-)
Black
(shield)
Upper terminal block
Lower terminal block
Red (+)
Blue (-)
Black
(shield)
Pyranometer
Black (shield)
Yellow (- Reflected rad.)
Green (+Reflected rad)
LP PYRA 05
Lower
terminal
White (housing)
Blue (- Incident rad.)
Red (+Incident rad.)
Upper terminal block