Vaisala Indigo300 - Wiring Options; Table 4 Analog Output Terminals; Table 5 Probe Connection Terminals

Terminal Function Notes
24 V - Negative supply voltage
15 … 30 V DC
1)
or 24 V AC ±10 %
50/60 Hz
24 V + Positive supply voltage
1) When used with the HMP7 probe, the minimum required power supply input is 18 V DC.
3.3.1.2 Analog output terminals
Table 4 Analog output terminals
Terminal Function Notes
CH - Analog output channel 1 -
Max. wire size: 1.5 mm
2
(16 AWG), solid
wires or ferrules recommended
CH + Analog output channel 1 +
CH - Analog output channel 2 -
CH + Analog output channel 2 +
CH - Analog output channel 3 -
CH + Analog output channel 3 +
3.3.1.3 Probe connection terminals
The probe connection terminals are delivered pre-wired.
Table 5 Probe connection terminals
Terminal Function Color Notes
24 Vout + Positive supply voltage to
probe
Brown
Max. wire size: 1.5 mm
2
(16 AWG)
RS-485 - RS-485 - White
24 Vout - Power GND and RS-485
common
Blue
RS-485 + RS-485 + Black
3.3.2 Wiring options
Do not energize the power supply before the wiring has been
connected.
CAUTION!
Chapter 3 – Installation
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