Hanna Instruments hi 8666 Manual Do Utilizador
TERMINAL BOARD AND INSTALLATION
The HI 8666 Transmitter has an 11-pin con-
nector at the rear of the instrument.
nector at the rear of the instrument.
Connect it to a UNDECAL relay socket.
The terminals are:
1 +°C: Positive Terminal;
9 -°C: Negative Terminal;
4 +RH: Positive Terminal;
7 -RH: Negative Terminal.
9 -°C: Negative Terminal;
4 +RH: Positive Terminal;
7 -RH: Negative Terminal.
Terminals 2, 3, 5, 6, 8, 10 and 11 are not
connected.
connected.
See the following figures for recommended
installation:
installation:
1. Passive and isolated receivers
RH%
Transmitter
•
-
•
+
7
4
•
-
+
9
1
•
-
°C
Receiver
•
+
•
•
-
RH%
Receiver
•
+
•
•
+
Power
Supply
-
•
°C
Transmitter