LPPYRA03
- 9 -
V2.8
4.2
LPPYRA03AC
CONNECTIONS
The pyranometer LPPYRA03AC has
4…20 mA
output and requires
10…30 Vdc
exter-
nal power supply. It is to be connected to a power supply and an instrument with
4…20 mA input as shown in fig. 4.2. The load resistance of the instrument reading the
signal must be
≤ 500 Ω
.
Connector
Function
Color
1
Positive (Iin)
Red
2
Negative (Iout)
Blue
3
Housing (C)
White
4
Cable shield (SH)
Black
4...20 mA
1
2
3
4
SH
I
in
I
out
C
Fig. 4.2: LPPYRA03AC connections
4.3
LPPYRA03AV
CONNECTIONS
The pyranometer LPPYRA03AV has
0…1 V
,
0…5 V
or
0…10 V
output (depending on
the ordered output) and requires external power supply:
10…30 Vdc
for 0…1 V and
0…5 V outputs,
15…30 Vdc
for 0…10 V output. It is to be connected to a power sup-
ply and an instrument with voltage input as shown in fig. 4.3. The load resistance of
the instrument reading the signal must be
≥
100 kΩ
.
Connector
Function
Color
1
Output positive (+Vout)
Red
2
Output negative
Power supply negative (GND)
Blue
3
Power supply positive (+Vdc)
White
4
Cable shield (SH)
Black
1
2
3
4
SH
GND
+Vdc
+Vout
Fig. 4.3: LPPYRA03AV connections
CPM12AA4… cable
Pyranometer M12
male connector
Power supply
Connect to ground only if it is not possible to
ground locally the housing of the pyranometer
Instrument with
4…20 mA input
CPM12AA4… cable
Pyranometer M12
male connector
Power supply
Instrument
with
voltage input
