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Figure 3.8: Switch-type Power Module of Main AC
Safety Wiring:
•
Only trained or authorized operators are allowed
to carry
out
maintenance. Proper protection is required when
working near electronically sensitive devices to
avoid electrostatic discharge, otherwise the
electronic components inside the circuit board
may be damaged.
•
It is recommended to release static electricity on
an operators' body before touching any electronic
components (such as the PCB board and its
subcomponents).
Notes before Wiring:
•
Make sure the power cord is not powered before
connecting the power supply to the instrument;
Turn off the power supply before connecting to
any relay.
•
Connect the live wire, neutral wire and ground
wire to the power supply terminal in the instrument
electronic box and pay attention to the position of
the fuse.
16
| Chapter 3 Installation
Power
electronic
wiring
•
Insert the wire into the corresponding wiring
terminal and tighten the screw.
•
The signal wire passes through the threading
conduit on the left, and the power cord passes
through the threading conduit on the right.
•
All connections must be conformed to local safety
standards.
Notes during Wiring:
•
Make sure that the instrument is not powered
when wiring.
•
Strip off a 6 mm insulation layer from each cable.
•
Insert
wiring terminal
maximum torque for tightening the screw shall not
and
exceed 0.6 Nm, meanwhile the maximum pulling
force shall not exceed 20N.
•
The isolation design is applied to the external
RS485 and 0/4-20 mA interfaces.
•
Maximum switching capacity of relay contacts:
250V AC/8A (resistive load).
the
stripped
metal
and tighten
Warning ！
The instrument is not equipped with a
power switch, so the power switch with the
functions similar as that of a breaker
should comply with local safety standards
and must be prepared before final
installation.
The circuit breaker should be as close to
the instrument as possible and convenient
to be controlled by the operator. When the
instrument is powered off, there must be a
clear and explicit indication.
All conductors need to have a temperature
resistance of at least 75 ° C.
Do not power on the instrument until all
preparation
work
(including
installation, water sample access, etc.) is
completed!
8030cX Silica Analyzer
wire
into
the
the
screw.
The
reagent
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