Hanna Instruments HI 23 Series Instruction Manual page 12

• • • • • P P P P P ower Supply:
• Conductivity input: • Conductivity input: the default input is from conductivity • Conductivity input:
• Conductivity input: • Conductivity input:
• • • • • Pt 100 T
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ower Supply: ower Supply: ower Supply: ower Supply: Connect a 3-wire power
cable to the terminal strip, while paying
attention to the correct line (L), earth (PE)
and neutral (N) terminal connections.
Power: 230VAC - 50 mA.
Line Contact: 200mA fuse inside.
PE leakage current 1 mA; this contact must be con-
nected to ground.
probe. Connect the EC probe to the terminals #10 on
page 8. HI7639D is a conductivity probe with built-in tem-
perature sensor.
Pt 100 T Pt 100 T Pt 100 Terminals Pt 100 T erminals (to be used only if the EC probe is erminals erminals erminals
without Pt 100): connect to these contacts (#3 on page 8)
the Pt 100 temperature sensor for automatic temperature
compensation of measurement. Follow the below diagram
for connecting a 3-wire Pt 100 sensor as HI5001/5:
Color Pin #
GRAY
BROWN
YELLOW
If using a different Pt 100, separated from the conductivity
probe, connect the cable shield to pin 11, and the other
wires as explained below.
In the case of a 2-wire sensor connect
the Pt 100 to pins 8 and 10, and short
pins 9 and 10 with a jumper wire.
8
9
10