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Note) For communication with HHC, the smart type requires load resistance 250 Ω as
minimum.
600
250
0
1533
Operating
zone
10.5 16.1
24 45
Power voltage (Vdc)
Load resistance ( )
Note
Hexagon key
wrench
Flash screw
When using conduit connection at the top
For wiring from the top conduit connection, use the following procedure.
(1) Remove the screw plug of the top conduit connection.
(2) Screw the removed screw plug into the bottom conduit connection.
(3) Insert the cable from the top and connect it.
7.2 Power voltage and load resistance
Make sure the load resistance of the wiring connected to the loop is within the range shown below.
Things convenient to know beforehand
• The unused conduit connection is of great importance to flameproofing and
moisture prevention. So be sure to tighten the flush screw and packing into
the connection.
•When performing an insulation check after wiring, use a Megger (insulation
resistance meter) of 250 V DC or less and avoid applying a high voltage. If an
arrester is equipped, avoid the insulation resistance test and the dielectric
strength measurement.
Important
CAUTION
Connect power source of correct rating. Use of power source in excess of the
rating may cause a fire.