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Expert-32T rev.03
Expert-32T
Probes operate at low voltage and are isolated from the supply.
Be sure that probe cables remain isolated from all high voltage
sources. In particular, do not route the probe cables through the
same electrical knockout as other cables. Do not connect the
shield from the probe cable to a terminal or a ground.
Extending a probe:
Each probe can be extended up to 500 feet (150
meters). To extend a probe:
Use a shielded cable of outside diameter between 0.245 and 0.260
in (6.22 and 6.60 mm) (the cable dimensions should not be under 18
AWG) to ensure the cable entry is liquid tight. Do not ground the
shielding.
It is preferable to solder the cable joint to ensure a proper contact
between the two cables.
CAUTION:
Do not run probe cables next to other power cables. When
crossing over other cables, cross at 90°.
Defective probes:
An alarm is generated when a defective probe is
detected. To identify the defective probe, select the functions, PROBE
TEMPERATURES and STATIC PRESSURE. Dashes are displayed instead
of a reading when the probe is defective. In the case of room tempera-
ture probes, the controller will operate according to the temperature of
the remaining probes.
2. RELAY PANELS
Use a shielded cable with two twisted pairs. Connect the shielding to the
SH terminal. Use one pair for terminals 1 and 4 and the other pair for
terminals 2 and 3.
2
4
1
3
S H
RELAY PANELS
ONE PAIR
ONE PAIR
Summary of Contents for Expert-32T
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