8
The wire between the transmitter and the recorder/indicator/controller
should be a PVC insulated two wire with a wire diameter of at least
0.7 mm. This wire is fed through one of the smaller cable glands. The
maximum distance between the power supply and the amplifier is
300 m (1000'). It is not necessary to use shielded cable. The
transmitter is protected against inversion of supply voltage.
Electrode connection:
connect the BNC
of the cable to the BNC socket on the
transmitter.
For HI 8614 family only:
for
automatic
temperature compensation
, connect
the 2 terminals of the temperature probe
(
HI 76608
, optional) to “TEMP. PROBE“
terminals.
If automatic temperature compensation
is not required, short the “TEMP.
PROBE“terminals with a resistance
according to the external temperature:
Temperature (°C)
Resistance (Ohms)
0
1634
10
1774
20
1922
30
2078
40
2242
50
2412
60
2590
A 2 kohm resistor is factory mounted for 25 °C temperature compensation.