LPPYRA13
- 12 -
V2.3
4
ELECTRICAL CONNECTIONS
LPPYRA13, LPPYRA13AC and LPPYRA13AV have a 4-pole connector and use the
CPM12AA4... optional cables in UV resistant PTFE, with 4-pole connector on one side
and open wires on the other side.
LPPYRA13S and LPPYRA13S12 have a 8-pole connector and use the CPM12-8D...
optional cables in UV resistant PTFE, with 8-pole connector on one side and open
wires on the other side.
The metallic housing of the pyranometer should preferably be
grounded ( ) locally. In this case, do not connect the wire of the
cable corresponding to the housing to prevent ground loops.
Only if it is not possible to ground locally the metallic case of the
pyranometer, connect the wire of the cable corresponding to the
housing to ground ( ).
The wire of the cable corresponding to the housing depends on the model: white wire
in LPPYRA13 and LPPYRA13AC, black wire (cable shield) in LPPYRA13S and LPPY-
RA13S12. In LPPYRA13AV the housing is not connected directly to the connector.
4.1
LPPYRA13
CONNECTIONS
The pyranometer LPPYRA13 is passive and does not require power supply. It is to be
connected either to a millivoltmeter or to a data acquisition system. Typically, the py-
ranometer output signal does not exceed 20 mV. In order to better exploit the pyra-
nometer features, the readout instrument should have 1
µ
V resolution.
Connector
Function
Color
1
Vout (+)
Red
2
Vout (-)
Blue
3
Housing
White
4
Cable shield
Black
Fig. 4.1: LPPYRA13 connections
CPM12AA4… cable
Sensor M12
male connector
Datalogger
or
converter/amplifier
with V or mA output
Red [1]
Blue [2]
Black [4]
White [3]
Connect to ground only if it is not possible to
ground locally the case of the pyranometer
Summary of Contents for Delta OHM LPPYRA13
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