Hanna Instruments HI 23 Series Instruction Manual page 13

If the Pt 100 has more than 2 wires, con-
nect the two wires of one end to pins 9
and 10 (pin 9 is an auxiliary input to
compensate for the cable resistance) and
one wire from the other end to pin 8.
Leave the fourth wire unconnected, if
present.
Note
If the meter does not detect the temperature probe, it will
switch automatically to manual temperature compensation
with the temperature adjustable through the up and down
arrow keys. The "°C" symbol will blink on the LCD.
Note
All external cables to be connected to the right panel should
end with cable lugs.
• Analog output: Analog output: Analog output: Analog output: Analog output: In the models where it
is available, connect an external recorder
with a 2-wire cable to these terminals
(#2 on page 8) paying attention to the
correct polarity. A wide variety of output
signals, either in V or in mA, is avail-
able to fit most standards. Terminal 5 is the voltage output,
terminal 6 is the analog output common and terminal 7 is
the current output.
• Contact 1 and 2: Contact 1 and 2: Contact 1 and 2: Contact 1 and 2: Contact 1 and 2: Connect the dosing
devices to these terminals (#8 and #9
on page 8) in order to activate and de-
activate them according to the selected
control parameters.
• mA Input: mA Input: to switch to mA input signal mA Input: mA Input:
mA Input:
from a conductivity transmitter (e.g.
HI8936 or HI98143 series) see the setup
procedure (code 6).
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