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CAUTION
DANGER
INDICATION
PROHIBITION
DANGER
CAUTION
Installation and Piping
• Non-explosion-proof transmitter must not be used in a place with explosive gases to prevent
serious accidents such as explosion, fire, etc.
• The transmitter is heavy. Be careful when handling it.
• The transmitter should be installed in a place that meets the operating conditions shown in DS
sheet or this instruction manual.
• Install the transmitter according to the instruction manual. Improper installation may lead to the
cause of fall, trouble or incorrect operation.
•When installing, make sure that the transmitter interior is free from cable chips and other foreign
objects to prevent fire, trouble, or incorrect operation.
•When power is ON, do not change the position of the field indicator in an explosion-proof area.
•When power is ON, do not change the position of the transmission unit in an explosion-proof area.
•When power is ON, do not change the angle of the indicator.
•Main valve used for piping should be selected with the maximum pressure of the process taken
into account (piping parts such as main valve, etc. should be furnished by user). If the main valve
and other parts do not meet the rating, it may result in leakage of gas or liquid which could lead to
hazard.
• Pressure pipes to be used must meet the temperature/pressure rating.
• The cautionary descriptions listed here contain important information about safety, so they should be
observed without fail. Those safety precautions are classified into ranks “DANGER” and “CAUTION”.
Wrong handling may cause a dangerous situation, in which there is a
risk of death or heavy injury.
Wrong handling may invite a dangerous situation, in which there is a
possibility of medium-level trouble or slight injury or only physical
damage is predictable.
On items listed under “
CAUTION
”, they may also lead to serious accidents depending on circum-
stances, and must be fully observed.
• The signs of prohibition and indication are explained in the following.
General items which pertain to prohibition (DO NOT)
General items which pertain to user’s action
CAUTION ON SAFETY
First of all, read this “Caution on Safety” to ensure correct operation of the
transmitter.